PressBrakeControls.pdf

PRESS BRAKE CONTROL SYSTEMSPRESS BRAKE CONTROL SYSTEMS

Rockford Systems, [email protected] FAB 145

(Continued on next page.)

INTRODUCTIONPress brakes are one of the most difficultmachine tools to safeguard because oftheir general purpose-type use in indus-try. General purpose means a press brakecan be used to bend from very small partsto very large parts. Production runs onthese machines can be one part to thou-sands of parts. With this type of operation,press brakes must be versatile.

Today, with advanced technology, it is nowpossible for industry to safeguard pressbrakes and maintain the same levels ofproductivity when the employer (user)considers all components in the pressbrake system. A complete safeguardedsystem includes, but is not limited to, thetype of press brake, the safeguard itself,tooling to be used, size, shape or configu-ration of workpiece, material handling,production, maintenance, and any antici-pated future needs.

OSHA STANDARDSUnder OSHA, press brakes are cited for noncom-pliance in accordance with 29 CFR 1910.212—Machine Guarding, which specifically requirespoint-of-operation safeguarding. All machines fallunder this same regulation where it states: “thesafeguarding shall be in conformity with anyappropriate standard.” Some states may havetheir own rules and regulations for press brakes.

ANSI STANDARDSThere are several references available on pressbrake safety; however, most industries use theANSI (American National Standards Institute)B11.3 standard. This standard can be purchasedby contacting:

ANSIAmerican National Standards Institute, Inc. 25 West 43rd Street, 4th FloorNew York, New York 10036Phone: (212) 642-4900 • Fax: (212) 398-0023 www.ansi.org

ORAMTThe Association for Manufacturing Technology7901 Westpark DriveMcLean, VA 22102Phone: (703) 893-2900 • Fax: (703) 893-1151www.amtonline.org

ORGLOBAL ENGINEERING15 Inverness Way EastEnglewood, CO 80112Toll-Free: 1-800-624-3974http://global.ihs.com

TYPES OF PRESS BRAKESThere are three basic categories of press brakes:

1. Part-Revolution—Mechanical-Friction Clutch—Air Clutch (Single- or Two-Speed)

2. Hydraulic (Down-Acting and Up-Acting)3. Hydra-Mechanical

Each one of these press brake types is discussedon subsequent pages in this section. There arealso servo-drive (electric) press brakes that can besafeguarded. Please consult the factory.

POINT-OF-OPERATION HAZARDFortunately, most press brake operations do notrequire the operators to place their hands or anypart of their body into the point-of-operation haz-ard; however, exposure to point-of-operationinjuries still exists. Because of this exposure, theoperator(s) must be safeguarded from point-of-operation hazards. Best safety practice is whenoperators are never required to put their hands orany part of their body in the point of operation atany time. Sometimes as the workpiece bends up,a hazard may be created between the part and thefront face of the slide. When this happens, be surethe operators do not place their fingers on the topor sides of the material, but support the materialfrom underneath.

HELPERSMany times two or more operators are feeding andretrieving workpieces from press brake dies. Theemployer may describe one person as an operatorand one person as a helper; however, a helper is


Rockford Systems, Inc.Call Toll-Free 1-800-922-7533

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This introduction and subsequent pages in thiscatalog will provide information on safety require-ments in these areas.

SAFEGUARDINGPress brake safeguarding can be accomplished byusing one of the following safeguarding devices:

1. Presence-sensing device (pp. 45-73)2. Two-hand control device (p. 74)3. Pullback device (p. 77)4. Restraint device (pp. 78-79)5. Hostage control device (pp. 148-149)

PRESENCE-SENSING DEVICES Of all the recognized point-of-operation safeguardingdevices for press brakes, the light curtain is the mostversatile for short- to long-run operations and forsmall to large workpieces. Proper use of this deviceprovides protection for all operators and passersby inproduction modes of operation. It also minimizesoperator resistance to using safety devices.

A muting feature, most commonly used with pressbrakes, allows the light curtain to be bypassedduring the nonhazardous portion of a press brakestroke. This is generally from 1⁄4" or less above theworkpiece to the bottom of the stroke and back tothe top of the stroke. Blanking of beams or the useof float blanking are also popular options for pressbrake applications; however, these options mustbe closely supervised and discouraged wheneverpossible.

When applying light curtains, they must bemounted at a safe distance according to the for-mulas found on page 46.

HELPERS (continued)considered an operator when exposed to anypoint-of-operation hazards. Each operator mustbe safeguarded and have his/her own set of oper-ating controls for cycling the machine such aspalm buttons or a foot switch.

METHODS FOR CYCLING AND SETUPSEQUENCE OR HIGH/LOW OPERATIONWhen there is a concern about whip-up action of material, or positioning of a part, the sequenceor high/low speed-change mode of operation isused. Sequence is accomplished by stopping theslide on the downstroke (on down-actingmachines) just above the workpiece, then com-pleting the downward part of the stroke in a slow,controlled speed. In the high/low mode, the slidedoes not stop; when selected, it goes into a slowerspeed for bending the workpiece.

SINGLE STROKEIn the single-stroke mode, the machine slide willdescend through the workpiece and return auto-matically to stop at the beginning of the cycle. In ahigh production situation, with certain workpieces,machines are usually single-stroked (cycled) ratherthan operated in the sequence or high/low mode.The controls offered in this catalog allow the opera-tor to inch on the downstroke in the single-stroke,sequence, and high/low modes, on both mechani-cal and hydraulic press brakes.

INCH/SETUPWhen the inch mode of operation is provided onpress brakes, it must be used for setup only.Never operate a press brake in the inch mode forproduction operations.

PRESS BRAKES USING POWER PRESS TOOLINGIf mechanical or hydraulic press brakes use presstooling (i.e., conventional or unitized dies) forstamping parts, please refer to pages 103-129 formechanical press control box and componentselection, and pages 172 and 173 for air cylinderselection (mechanical-friction clutch press brakesonly), or pages 130-142 for hydraulic press controlbox selection.

BASIC SAFETY REQUIREMENTSWhen updating press brakes to comply with the indi-cated safety standards, there are five basic require-ments that must always be considered. They are:

1. Safeguarding (pp. 7-86)2. Controls (pp. 153-185)3. Disconnects (pp. 193-197)4. Starters (pp. 193-197)5. Covers (user to provide)

Light Curtain




STEP 1 The operator inserts the workpiece into thepress brake die and supports it either withhis/her hands, on rails, or on a table.

STEP 2 The press brake is activated by a foot switchor palm buttons.

STEP 3 If the light curtain is interrupted during the die-closing portion of the cycle, the press brakeslide will stop.

STEP 4 If the light curtain is not interrupted, thepress brake will continue its downstroke andwill either: 1) make contact with the work-piece and finish the single stroke in normalspeed (or in high/low speed if chosen), or 2)stop above the workpiece if in sequence mode.In the sequence mode, the workpiece may beinserted or positioned at this time and thenthe slide is reactivated to finish the stroke.Note: The light curtain is muted once the die is a

maximum of 1⁄4" above the workpiece.When the light curtain is muted, it is auto-matically turned off or bypassed during thebending operation to permit the workpiece oroperator’s hand to move through the plane oflight without interrupting the cycle.

STEP 5 The slide returns to the beginning of the cycle.

so the operator(s) must hold the palm buttonsdepressed until the slide reaches a point 1⁄4" orless above the workpiece. If either palm button is released, the slide stops. Both palm but-tons must then be released and reactuated to fin-ish the stroke. Two-hand control is usuallyarranged to provide this protection in the two-hand single stroke, sequence, or high/low mode ofoperation. See information below and on the nextpage for additional details on how two-hand con-trol and sequence mode of operation work.

LIGHTCURTAIN

SLIDE

DIE

BED

TOPOF

STROKE

BOTTOMOF

STROKE

1/4" MUTE POINT

BACKGAUGE

This illustration is of adown-acting press brakebending a workpiece with

a light curtain used asthe safeguard.

TWO-HANDCONTROL

(TWO BUTTONS)

SLIDE

DIE

BED

TOPOF

STROKE

BOTTOMOF

STROKE

1/4" SEQUENCE STOP OR LOW-SPEED POINT

BACKGAUGE

STEP 1 By depressing the two run buttons, the oper-ator(s) initiate the press brake cycle.

STEP 2 The operator(s) must hold the two run but-tons until the slide completes its downwardtravel to the workpiece or until the slidestops 1⁄4" or less above the workpiece. If theoperator(s) remove one hand from the runbuttons, the slide will stop. In the single-stroke or high/low mode, the slide will makeone complete cycle.

STEP 3 In the sequence mode, the slide will auto-matically stop at a preset position 1⁄4" or lessabove the workpiece. This preset position isadjustable for different feed-line heights ormaterial thicknesses.

STEP 4 If the workpiece is not already placed in thedie, it may be inserted at this time.

STEP 5 The palm buttons or the foot switch is nowreactuated, causing the slide to continuethrough the bottom of the cycle and auto-matically return at high speed to the begin-ning of the cycle.

PRESENCE-SENSING DEVICES (continued)

How a Light Curtain Works as a SafeguardingDevice on Press Brakes:

How Two-Hand Control Works:

TWO-HAND CONTROL DEVICES Two-hand control, as a point-of-operation safe-guarding device for press brakes, is ideal for short-run job-shop operations. Workpieces can be fromvery small to very large.

Each operator station is arranged with two guardedrun palm button assemblies. These buttons areusually mounted to the slide of the press brake;however, they can also be installed on a floor stand(see page 123) for more flexibility.

Two-hand control provides protection againstpoint-of-operation injury during the die-closingportion of the cycle. Two-hand control is arranged

Note: The controls illustrated provide the ability to inch theslide down with the palm buttons or foot switch in the sin-gle, sequence, or high/low mode of operation. By inchingthe slide down in these modes, the operator makes surethe upper die is going to bend the workpiece in the correctposition. This also avoids hazardous whip-up action of theworkpiece when inching through the workpiece bend.

This illustration is of a down-acting press brake bending aworkpiece with two-hand con-

trol used as the safeguard.



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TWO-HAND CONTROL DEVICES (continued)The control packages offered include control relia-bility to minimize the possibility of an unintendedstroke of the slide if there is a single componentfailure in the control system. The control featuresantirepeat, preset timing of concurrent operation ofpalm buttons, and nonresumption of interruptedstroke. The palm buttons must also be mounted atthe proper safety distance.

When more than one operator station is requiredon press brakes, two palm buttons for each stationmust be used and must be capable of being super-vised. The supervised operator stations arearranged so that if all operating stations arebypassed, the press brake will not cycle. If a footswitch is used, one is required for each operator.

When using two-hand control, the operator cannothold onto the workpiece during the die-closingportion of the stroke. Material tables (page 65),rails, magnets on backgauges, etc., can be used tosupport the workpiece.

If the dies are not the exact length of the material,auxiliary safeguarding is required.

PULLBACK DEVICE The overhead-pullback device is usually applied onpress brakes that perform long-run jobs and whensmall- to medium-size parts are being produced.

The pullback is a mechanical device operated fromthe linear motion of the slide or upper die. Whenadjusted properly, it pulls the operator’s handsback should they inadvertently be put into thepoint-of-operation hazard.

The overhead design allows the operator freedomof movement for loading and unloading workpieceswithout interference.

Pullbacks are designed for a fixed-length-strokemechanical press brake; therefore, when applyingthem to a hydraulic press brake that may have anadjustable stroke, the stroke length will need toremain the same at all times.

RESTRAINT DEVICE

Similar to the overhead pullback, restraints areusually applied on press brakes that performlong-run jobs. The parts being produced are usu-ally medium size with the operator holding ontothe workpiece. If small parts are being fed into thedie, a hand-feeding tool must be used.

Restraints are adjusted so that an operator cannotreach into the hazardous area at any time.

Both pullbacks and restraints must be properlyworn, adjusted, and maintained at all times.

Pullbacks

RestraintsWith TwoOperators

Two-HandControl

HOSTAGE DEVICEHostage control devices are used on machines thatperform short-run jobs with very large workpieces.The actuating means (hand or foot) must be pro-tected against unintended operation and arrangedso the operator(s) can never reach the point-of-



COVERSMechanical power-transmission apparatuses ofthe press brake such as rotating flywheels, gears,sprockets, chains, and shafts must be covered inaccordance with OSHA 1910.219, MechanicalPower-Transmission Apparatus and ANSI B15.1.All apparatuses that create a hazard up to 7'above the floor or platform must be guarded (cov-ered). This is usually done by the user, either bymodifying existing guards or by contacting a localsheet-metal fabricator. See pages 272-275.

OTHER SAFETY CONSIDERATIONSOther areas of press brake safety must be consid-ered in order to comply with the OSHA and ANSIstandards. This includes, but is not limited to, thepoint-of-operation hazard exposure, when theworkpiece length is less than the die length. Thisis a questionable area when using a light curtainor two-hand control (to the 1⁄4" or less point abovethe workpiece) as the point-of operation safe-guard. In some cases, there is an opening in thedie that is larger than 1⁄4" on both sides of theworkpiece. Common practice is to either cut orarrange all dies to be the length of the workpieceor provide barriers on the front of the press brakeallowing just enough opening for the workpiece.

Another safety consideration is the proper use offront and back material-position gauges. It isimportant that this gauging is designed correctlyso the workpiece and hand will not inadvertentlyslip into the hazard area. Special care must be takenwith small or narrow workpieces. For example, if thebackgauge is not tall enough, the workpiece couldslide over it allowing the fingers and hands to beexposed to the point-of-operation hazard.

When blanking the light beam channels of a lightcurtain, difficulties may arise with the angle atwhich the workpiece is held from operator to oper-ator. Laying the workpieces on a table or rails, orusing magnets to hold workpieces made of ferrousmaterial in position are two ways to eliminatesome of the hurdles in safeguarding a press brake.

When holding onto the workpiece, good safetypractice is to have the operator’s thumbs and fin-gers positioned alongside or underneath the work-piece—never on top.

As with all machinery, the best safety practice isto have a continuing safety program. The operatorand all personnel connected with machinery mustbe safeguarded. The operator and die setter mustbe fully trained and instructed on all safety proce-dures and have full knowledge of the safeguardingdevice being used. The set-up and maintenancepersonnel must also be trained on the proper safeoperation of press brakes.

HOSTAGE DEVICE (continued)operation hazard while the machine is in operation.An example of a hostage control is a foot switchwhich is permanently mounted to the floor farenough away from the point of operation that theoperator(s) cannot reach the point-of-operationhazard when operating the control. Two-hand con-trol or one-hand control can be applied as well.

SAFE DISTANCE SAFEGUARDINGSafe distance safeguarding is allowable by OSHAand ANSI under certain controlled situations.Please see ANSI B11.3 for compliance guidelines.If safe distance is chosen as the primary safe-guard, the control system for both mechanicaland hydraulic press brakes must be control reli-able. For assistance in determining your controlsystem’s reliability, please contact the factory.

AUXILIARY SAFEGUARDINGAuxiliary safeguarding is used for additional pro-tection from injuries for all personnel in themachine area. It is used in conjunction with pri-mary safeguarding devices. Auxiliary safeguardingalso involves the guarding of other components orhazardous openings on machines.

Auxiliary safeguards include such items as point-of-operation side barriers when light curtains areused, pressure-sensitive floor mats, workpiecetables, or horizontal light curtains. An additional setof light curtains can be used horizontally to preventan operator or other persons from standing betweenthe vertical plane of light and the point-of-operationhazard. To prevent unauthorized entry on the backside of the press brake, an interlocked cable anddanger sign can be used (see page 213).

Danger signs, used for warning, can be mountedon the press brake slide in a position that is read-ily visible to the operator, setup person, or otherpersonnel. Hand tools are another auxiliary safe-guard often used when feeding and retrievingsmall workpieces. Hand tools by themselves arenot a point-of-operation safeguarding device.

CONTROLSPress brake controls are furnished according tothe type of press brake: mechanical friction, airclutch, hydraulic, hydra-mechanical, or electric.The controls and system of the safety-relatedfunctions must be control reliable. Please see page259 for further explanation.

ELECTRICAL LOCKOUT/TAGOUT REQUIREMENTSA press brake requires a main power disconnectswitch, and a magnetic-type motor starter for themain drive motor and the slide-adjust motor. Alockout valve is required to lock out the air powerto the press brake.



Fax 815-874-6144150 FAB


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Fax 815-874-6144152 FAB

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1 2 3 4



Plain-DoorControl (UseWith Remote

OperatorStation)

Custom or Special ControlWith Remote Operator

Station

PRESS BRAKE CONTROL SYSTEMSA press brake clutch/brake or hydraulic controlsystem consists of:

1. A control box or light curtain interface2a. Individual components

OR2b. Component packages

We offer a variety of control boxes that can be fur-nished to meet your specific requirements. Solid-state control boxes are available as:

1. Standard clutch/brake or hydraulic control

2. Custom control which includes a fused dis-connect switch and magnetic motor starter

3. Special control

SELECTING A CONTROL SYSTEM1. To order a complete control system, determine

which style control box is required.

A standard control box, with operators on thedoor, includes the clutch/brake or hydrauliccontrol only. It can also be furnished in a plaindoor enclosure or as a subpanel. Both plaindoor or subpanel options require a remoteoperator station. Subpanels are furnishedwithout the enclosure and must be installedinto an existing enclosure.

A custom control box includes a main powerdisconnect switch and magnetic motor starterin the same enclosure as the clutch/brake orhydraulic control. A reversing slide-adjustmotor starter may also be included.

Special clutch/brake or hydraulic controlboxes can include either a standard or customcontrol that requires modification for any spe-cial requirements. This can be an interface ofauxiliary equipment, a light curtain interfacefor a non-Rockford light curtain, or compo-nents specified by the end user, such as NEMAstarters and disconnects.

2. After determining the style of control box,determine the location of the operator controls,and the keypad/display. Please rememberthese should be installed in a convenient loca-tion for the operator. These operator controlsand keypad/display can be supplied as follows:

1. On the front of the enclosure.2. In a remote operator station.3. In a control bar.4. In a console.5. Loose for installation in an existing box.

Remote OperatorStation (Use With

Plain-Door, Custom,or Special Control)



Fax 815-874-6144154 FAB

INTRODUCTIONThe most common older press brakes, in metal fab-ricating, use a part-revolution mechanical-frictionclutch, usually operated by a mechanical foot pedalor treadle. Manufacturers of these types of pressbrakes are listed on pages 150 and 151.

These mechanical-friction clutches are widelyused because they give the operator control of themachine stroke by mechanically inching and slip-ping the clutch. This allows the operator todescend the slide to the workpiece and stop,adjust or align the workpiece, then complete thestroke to bend the part.

The mechanical-friction clutch also allows theoperator to slip the clutch or inch through the bot-tom of the stroke to avoid a quick whip-up actionof the material. To update these press brakes or toapply certain point-of-operation safeguardingdevices, an air cylinder and clutch control pack-age are installed to engage and disengage theclutch and brake. Always remember, when apply-ing an air cylinder to the existing operating link-age, it must be a single-action type.

SELECTING A CONTROL SYSTEM FORMECHANICAL-FRICTION-CLUTCH PRESSBRAKES1. Determine if the treadle/pedal will be retained.

2. If the treadle/pedal is retained, the Big Foot™control box and a component package on page160 can be used. Air cylinders, light curtains,and lockout valves are not part of the compo-nent packages and must be ordered separately.Please see pages 172 and 173 to order theproperly sized air cylinder, pages 45-73 for lightcurtain options and mounting brackets, andpage 119 for an appropriate lockout valve.

3. If the treadle/pedal is replaced by a foot switch,and sequence stop operation is required, thePRS control box and components can be used.Please see pages 161-171. Again, air cylinders,light curtains, and lockout valves are not part ofthe component packages and must be orderedseparately. Please see pages 172 and 173 toorder the proper sized air cylinder, pages 45-73for light curtain options, and page 119 for anappropriate lockout valve. Also see page 213 forprotection for the back side of the press brake.

MECHANICAL-FRICTION-CLUTCH PRESS BRAKES

Part No. KSC-000

UNGUARDED SAFEGUARDED WITH BIG FOOT™CONTROL AND LIGHT CURTAIN



BIG FOOT™ CONTROL This mechanical Big Foot™ control is designed to retain the mechanical foot pedal operation. It allows asingle operator to engage and disengage the mechanical-friction clutch with the existing mechanical footpedal or treadle. This means the operators continue to have the same feel on the foot pedal as they havebeen accustomed to while operating the press brake. This helps maintain current production levels.

If more than one operator bends workpieces on a machine, an additional operator or helper requires acontrol. The optional hostage (slave) foot switch allows another operator to help during the bending oper-ation on the press brake. The primary operator controls the mechanical foot pedal and the stroke of themachine. The second operator or helper must hold the foot switch depressed in conjunction with the pri-mary operator to make a stroke on the press brake. For the additional operator or helper, a foot switchand supervisory station with an off/on selector switch are required.

A light curtain is normally used as the point-of-operation safeguard with this package. The light curtainis on when the operator begins to depress the mechanical foot pedal to begin a stroke. It remains on dur-ing the die-closing portion of the stroke (when the hazard is created). The light curtain is muted from 1⁄4"or less above the workpiece, on the downstroke, through the bottom of the downstroke, and back to thetop to complete the cycle. If the light curtain is interrupted before the stroke begins or on the downstroke,the dual-solenoid air valve is deenergized and air is dumped from the cylinder. If this happens, the pressbrake will not start the stroke or will stop the downstroke in progress. A specially designed air cylinder isinserted into the operating linkage and becomes an integral part of the linkage when the solenoids areenergized. If the foot pedal is not released near the top of the stroke, the press brake cycle automaticallytop-stops. When this control is in the sequence mode, the slide will automatically stop 1⁄4" above the work-piece even if the foot pedal is held operated throughout the cycle or on the downstroke.

STANDARD BIG FOOT™ CONTROL BOXThe Big Foot™ control is a microprocessor-basedclutch/brake light curtain interface/control withtop-stop brake monitoring. The modes of operationare foot pedal single stroke, and foot pedal sequence(foot pedal down to 1⁄4" and foot pedal through tocomplete the cycle). In either of these modes of oper-ation, the operator can inch the slide down to with-in 1⁄4" of the workpiece. The operator has completecontrol of the stroke of the slide at all times.

In the single-stroke mode, the slide automaticallytop-stops at the end of the cycle. In the sequencemode, the slide will automatically stop 1⁄4" abovethe workpiece and then top-stops at the end of thecycle. This happens even if the foot pedal is heldoperated throughout the cycle or on the down-stroke. The operator does not have to guess whento release the food pedal.

The standard control box is a 16" x 16" x 8" NEMA12 enclosure. The operator controls are normallylocated on the front of the enclosure. For operatorconvenience, a remote operator station can be fur-nished for use with a plain-door control box.Please indicate your preference when orderingthis equipment, or consult the factory if anotherlocation is required for the operator controls. Toobtain the correct Big Foot™ control part number,see the chart on page 157 and follow directions 1-6.


Standard Control Box Part No. BFC-000-FA



Fax 815-874-6144156 FAB


BIG FOOT™ CONTROL (continued)

CUSTOM BIG FOOT™ CONTROL BOXBig Foot™ custom or special control boxes are also available. A cus-tom control box contains the standard control as previouslydescribed plus the following:

• main power disconnect switch• main drive motor starter• ram-adjust motor starter (if required)

These boxes are furnished with an IEC through-the-door mainpower fused disconnect switch and an IEC nonreversing magneticmotor starter (with push button). If the press brake has a motor-ized ram adjust, a reversing ram-adjust motor starter is alsorequired. They are prewired and built in to a NEMA 12 enclosure.

To ensure the starter(s) and disconnect are sized properly, pleasecheck horsepower for the main drive motor and slide-adjust motor(if furnished) on the press, as well as full-load amps, and primaryvoltage to the press. After obtaining this information, please go tothe chart on page 157 to determine the proper custom control boxpart number. Make sure the proper suffix (F or P) is in the partnumber. Follow directions 1-6 to determine the correct part number.

Operator controls are located on the front of the enclosure door, or a plain-door control can be furnished. Ifa plain-door custom control is required, a remote operator station is needed. See below for available remoteoperator stations.

REMOTE OPERATOR STATIONSFor operator convenience, a remote operator station can be furnished foruse with a plain-door control box or plain-door custom control box. Theremote operator station contains the mode selector switch, light curtainon/off selector switch, and other selector switches and push buttons asrequired.

Remote operator stations are available in a standard format or can becustomized to meet any requirements. Select from the following remoteoperator stations or contact the factory with your special requirements.

Custom Control Box

PART NO. PART NO. PART NO. PART NO. PART NO.FEATURES LLD-410 LLD-421 LLD-422 LLD-423 LLD-424

Mode of Operation Selector Switch X X X X X

Light Curtain Off/On Selector Switch X X X X X

Main Motor Start and Stop Push Buttons X X X X

Main Motor Forward/Reverse Selector Switch X X

Ram-Adjust Off/On Selector Switch X X

Ram Raise Push Button X X

Ram Lower Push Button X X

Part No. LLD-410Remote Operator Station



SELECTING A BIG FOOT™ PRESS BRAKE CONTROL BOXTo determine the 8- or 9-digit configured part number for the Big Foot™ control box required, follow directions 1-6 below and use the information in the PART NUMBERING SYSTEM CHART below.

1. The first 3 digits for all Big Foot™ controls are BFC.

2. The 4th digit determines the size of the disconnect switch, if provided, in the control enclosure. Zero (0) indi-cates no disconnect switch provided.

3. The 5th and 6th digits determine the size and type of motor starter(s), if provided, in the control enclosure.Zeros (00) in both positions indicate no motor starter(s) provided.

4. The 7th digit determines the location of the operator controls.

5. The 8th digit is for the type of light curtain interface provided.

6. The 9th digit (if required) will indicate the type of modifier provided: i.e., motor control operators remote.

SYSTEM TYPE PRODUCT CATEGORYBFC —Big Foot™ Press Brake Control

DISCONNECT SWITCH SIZE (Allen-Bradley—IEC) (PLUS MAXIMUM MAIN MOTOR FLA)

0 —No Disconnect Switch1 —30-A Disconnect— 1- to 17-FLA Main Drive Motor2 —60-A Disconnect— 18- to 34-FLA Main Drive Motor 3 —100-A Disconnect— 35- to 57-FLA Main Drive Motor 4 —200-A Disconnect— 58- to 114-FLA Main Drive Motor 5 —400-A Disconnect—115- to 228-FLA Main Drive Motor

REVERSING/NONREVERSING MAIN MOTOR STARTERSWITH OR WITHOUT RAM ADJUST

0 —No Motor Starters1 —Nonreversing Main Motor Starter Without Ram Adjust2 —Reversing Main Motor Starter Without Ram Adjust3 —Nonreversing Main Motor Starter With 12-A Ram Adjust 4 —Nonreversing Main Motor Starter With 16-A Ram Adjust 5 —Nonreversing Main Motor Starter With 23-A Ram Adjust 6 —Reversing Main Motor Starter With 12-A Ram Adjust 7 —Reversing Main Motor Starter With 16-A Ram Adjust 8 —Reversing Main Motor Starter With 23-A Ram Adjust

MAIN MOTOR STARTER SIZE (Allen-Bradley—IEC ‘C’ Series)0 —No Starter

IEC1 —12 A 2 —16 A 3 —23 A 4 —30 A 5 —37 A 6 —43 A 7 —60 A 8 —72 A 9 —85 A A —110 A (‘B’ Series)B —180 A (‘B’ Series)C —250 A (‘B’ Series)

MODIFIER-- —Blank, No Modifier5 —Main Motor Operators Remote*6 —Ram-Adjust Operators Remote*7 —Main Motor and Ram-Adjust Operators Remote*

LIGHT CURTAIN OPTIONSA —Standard Rockford Systems Light Curtain—PSD-400B —Data Instruments—Shadow I, II & IVC —Sick Optic—“LUV”D —Data Instruments—Shadow VE —ISB - 4F —Rockford Systems—PSD-900G —Rockford Systems—KYM-XXX7 & PSD-900 (DJI)H —STI MiniSafe “B” SeriesJ —STI MiniSafe “C” SeriesK —Banner Mini-ScreenL —Frost Security ForceM —Rockford Systems—PSD-700/STI DuoSafeN —Data Instruments—Shadow VIP —Rockford Systems—KTR-2XX (DJI)R —Banner Beam ArrayS —Standard Rockford Systems Light Curtain—PSD-300T —Link Black MaxU —ISB Merlin

CONFIGURATION & OPERATOR LOCATIONF —All Operators on Door of Enclosure (Front)P —All Operators Remote (Plain Door)

BIG FOOT™ PRESS BRAKE CONTROL BOX PART NUMBERING SYSTEM CHARTB F C - X X X - X X X

B F C - 2 6 3 - F ASAMPLE1 2 3 4 5 6

The sample shown, BFC-263-FA, indicates that the custom Big Foot™ control box will contain a PSD-400 light curtain inter-face, an IEC 60-A disconnect, an IEC 23-A reversing main motor starter, and an IEC 12-A reversing ram-adjust motorstarter. All operators will be on the door of the enclosure.

Motor Horsepower Chart1-Phase 3-Phase

115 V 230 V 208 V 230 V 460 V 575 V1⁄3 1 – – – 7.51⁄2 2 3 3 7.5 101 3 5 5 10 152 – 7.5 7.5 15 20– 5 – 10 20 253 – 10 – 25 305 7.5 15 15 30 40– 10 20 20 40 50

7.5 15 – 25 50 60– – 30 30 60 75– – 50 60 125 150– – 75 75 150 200 *See pages 196-197 for remote stations.



Fax 815-874-6144158 FAB

*Included in a component package on page 160.


BIG FOOT™ INDIVIDUAL COMPONENTS LINEAR CAM SWITCH ASSEMBLYPart No. CMT-050*This linear cam switch assembly controls the cycle timing functions ofthe machine for single stroke and sequence modes of operation. It con-sists of a fixed-sensor mounting block and bracket. It has two sets ofredundant photoelectric sensors for sequence stop/mute, top stop, andbrake monitor. The slide assembly houses an extrusion which has threeadjustable flags (cams). These flags provide proper operation for pressbrakes which have different stroke lengths and stopping abilities; themaximum stroke of this assembly is 8". The door has a lock to preventunauthorized adjustments.

The linear cam switch assembly is usually mounted on the crown of themachine above the slide of the press brake. The threaded rod, which has auniversal joint at each end for easy installation, and a bracket can be usedto mount this assembly to either one of the connecting rods (pitmans) of thepress brake.

Once the linear cam assembly is properly set for single stroke, sequence,mute, and brake monitoring, it does not need to be set again. The univer-sal joints on the linear cam assembly allow the driving linkage to operatethe linear cam arrangement off the eccentric motion of the connection rod.

The Big Foot™ control is designed to diagnose the linear cam assembly forfaults and proper operation. If a fault is detected with any of the sensorson the linear cam assembly, the control turns off the dual-solenoid airvalve which either stops the stroke of the press brake or does not allow astroke to start. A fault condition also turns off the main motor drive.

MONITORED DUAL-SOLENOID AIR VALVEPart No. RCL-551*–1⁄2" PortThis three-way cross flow, series/parallel air valve supplies air to the air cylin-der that is used in the clutch linkage.

This valve consists of two main parts: the piloted monitor assembly and thevalve body assembly. The two main valve elements move simultaneously dur-

ing normal operation. If these elements shouldfail to move simultaneously, the internal spoolshifts; inhibiting further machine operation. Areset button on the side of the valve can beused to reset the valve if an accidental valvefault is detected.

FRL (FILTER-REGULATOR-LUBRICATOR)Part No. RCL-044*–1⁄2" PortThis assembly is required to meet the OSHA and ANSI standards. This FRLassembly filters, regulates, and lubricates the air going through it. This filteredand lubricated air then goes to the dual-solenoid air valve assembly and aircylinder. The regulator should be adjusted to meet the original equipment man-ufacturer’s requirements. The assembly includes a gauge, coupling, and a steelmounting bracket.

Linear Cam Switch Assembly Mounted on aMechanical Press Brake

Monitored Dual-Solenoid Air Valve

Average Cv (Flow Rate)

Part No. Ports Ports1 to 2 2 to 3

RCL-551 3.0 8.0

Filter-Regulator-Lubricator



AIR PRESSURE SWITCH—Part No. CTD-062*This air pressure switch monitors a low pressure setting to the clutch/brake-actu-ating air cylinder. The pressure switch must be set so if the air pressure operatingthe component is not adequate, or if the air pressure suddenly drops, the pressbecomes inoperable.

This adjustable switch is used on applications where the air pressure should not go belowa predetermined amount. Each air pressure switch’s low level is based on each applica-tion.

LIMIT SWITCH—Part No. CMC-031*This heavy-duty limit switch has an oil-tight construction and the enclosure meets NEMA 2,4, and 13 requirements. The switch head rotates a full 360° and can be remounted every90°. Movement of the limit switch lever in either direction will operate the switch.

The switch has an adjustable roller lever which operates off the mechanical foot pedal/treadle link-age. It is used to indicate the position of the foot pedal/treadle. This switch must be installed so itreleases as soon as the operator steps on the treadle. Generous overtravel gives extra installationfreedom. The contact arrangement is 2 NO and 2 NC. It is wired using the two normally open con-tacts; therefore, it must be held closed before the machine circuit can be actuated. As soon as thelimit switch is held closed and the machine circuit is actuated, the light curtain turns on.

SELF-LATCHING EMERGENCY-STOP STATION—Part No. LLD-800*To meet ANSI B11.3 and NFPA 79 safety standards, a self-latchingemergency-stop station is available. This station is a maintainedred emergency-stop palm button with a yellow background. It isfurnished in a 41⁄2" x 31⁄2" x 3" NEMA 12 enclosure. To reset thisbutton, turn it to the right.

LIGHT CURTAIN MUTING LIMIT SWITCH—Part No. CMT-008*The CMT-008 limit switch is needed to provide a separate light curtain muting signal.

HOSTAGE (SLAVE) FOOT SWITCH—Part No. CTD-011*

This foot switch is required when a second operatorworks on the press brake. For this application, it isdesigned as a hostage (slave) to the foot pedal/treadle.This means the foot switch must be depressed andheld down before the foot pedal can engage theclutch to start a cycle. If either operator lets up onthe pedal or foot switch, the press brake will stop.

SECOND OPERATOR SUPERVISORY STATION—Part No. LLD-411*When A second operator is required on the press brake, this supervisorycontrol station must be supplied also. It is furnished separately and has itsown enclosure. It includes an off/on key-operated selector switch andgreen indicator light. This NEMA 12 enclosure size is 3½" x 6¾" x 3". Theadditional operator also requires the hostage foot switch described above.


BIG FOOT™ INDIVIDUAL COMPONENTS (continued)

Supervisory Station

Air PressureSwitch

Limit Switch


Emergency-Stop Station

Hostage Foot Switch

Light CurtainMuting Limit

Switch



Fax 815-874-6144160 FAB

OTHER COMPONENTS REQUIRED TO COMPLETE THE BIG FOOT™ PACKAGEThe following components are not included in the component packages above. Each of these items mustbe supplied separately: air cylinder (below), lockout valve (page 119), light curtains and mountingbrackets (pages 45-73).

COMPONENTS INCLUDED IN ADDITIONTO THOSE LISTED IN STANDARD PACKAGE AT LEFT

CTD-011 Hostage Foot Switch (slave)LLD-411 Supervisory Control StationLLD-800 Emergency-Stop Button

SNF-002 Component PackageSNF-001 Standard Component Package

• Foot Single Stroke

• Foot SequenceStop

CMT-050 Linear Cam Switch Assembly(maximum 8" stroke)

RCD-551 1⁄2" Dual-Solenoid Air Valve RCL-044 1⁄2" Filter-Regulator-Lubricator

AssemblyCMC-031 Limit SwitchCMT-008 Light Curtain Muting Limit SwitchCTD-062 Air Pressure SwitchLLD-800 Emergency-Stop Button

TWO OPERATOR STATIONSONE OPERATOR STATION

MODES OFOPERATION

BFC Control Box

BIG FOOT™ COMPONENT PACKAGESTo complete the Big Foot™ system, component packages are available listed in the chart below. Thesepackages can be furnished with any of the control boxes described previously.

To select the proper component package to go with your control box, determine the number of operatorstations required and obtain that part number from the chart below.

AIR CYLINDERThis single-acting air cylinder isinserted into the clutch/brake oper-ating linkage. This linkage is usuallylocated in the vertical position on theright side of the press brake (whenlooking at the front of the machine).A yoke and pin is furnished at each end of the cylinder operating rod. The yokes attach to the existingclutch/brake operating linkage. All existing compression-return springs must remain on the linkage.

For 8' press brakes or smaller:Part No. RCK-508This air cylinder has a 3" bore x 3" stroke.

For 10' press brakes or larger:Part No. RCK-514Single-acting air cylinder with 4" bore x 3" stroke.

LIGHT CURTAINSLight curtains must be supplied separately. They areavailable in various lengths depending on the verticalarea that needs to be safeguarded. Please see pages 45through 73 for light curtain choices and mountingbrackets, and pages 11 through 30 for side barriers.Also, please see page 213 for safeguarding the back sideof the press brake.

RCK-508 AirCylinder

PSD-400 Light Curtain on a Press BrakeWith the Big Foot™ Control




The SSC-1500 solid-state control system isdesigned for use on press brakes. It is designedand built to comply with OSHA, ANSI B11.3, andB11.19 standards with control reliability (see page259) and brake monitoring. It can be used on bothmechanical-friction and single-speed, air-clutchpress brakes.

When this control system is furnishedfor mechanical-friction-clutch pressbrakes, it is designed to replace themechanical foot pedal/treadle opera-tion. A foot switch and palm buttonsreplace the foot pedal/treadle to actu-ate the press brake. It is also designedfor use on single-speed and two-speedair-clutch press brakes.

This control box includes sequencestop and a light curtain interface. Two-hand control or light curtains can beused as the point-of-operation safe-guard. Please see pages 146-149 forfurther details on safeguarding.

The control, in sequence operation,allows the operator to run the slidedown at high speed, stopping justabove the workpiece. When the work-piece is properly positioned in the die,the clutch is engaged and the brake isreleased, allowing the slide to finishthe cycle or inch through the bottomof the stroke. This slow-speed action,by inching through the bottom of thestroke, avoids the fast whip-up actionof the workpiece. After going through

the bottom of the stroke, the slide returns nor-mally to the top of the stroke. If necessary, theslide can also be inched down by the foot switchin the single-stroke mode. Air cylinders for engag-ing and disengaging the clutch and brake onmechanical-friction clutches are detailed on pages172-173.

On single-speed air-clutch/brake press brakes,the control will either allow the slide to make asingle stroke or a sequence stroke. On two-speedair-clutch machines, the control allows singlestroke, sequence stroke, and high/low automaticspeed change.

In many applications, a light curtain is used asthe safeguard. If this is the case, it is usuallymounted vertically in front of the point-of-opera-tion hazard. The control allows the light curtain tobe muted from 1⁄4" or less above the workpiece,through the balance of the stroke.

The standard SSC-1500 press brake control ishoused in a 20" x 20" x 8" NEMA 12 enclosurewith the operators and keypad/display mountedon the front of the enclosure.

MECHANICAL-FRICTION-CLUTCH AND AIR-CLUTCH PRESS BRAKES

SSC-1500 PRESS BRAKE CONTROL

Plain DoorControl Box

STANDARD SSC-1500 PRESS BRAKE CONTROL BOX

SSC-1500 Press Brake ControlSystem Installed on a Mechanical-

Friction-Clutch Press Brake

Remote Operator Station



Fax 815-874-6144162 FAB


SSC-1500 PRESS BRAKE CONTROL (continued)MODES OF OPERATION• Off• Two-hand inch (regular, timed, or top-stop)• Two-hand single stroke• Foot single stroke• Sequence stop (hand/hand, hand/foot, foot/foot)• High/low automatic speed change (for two-

speed only)

FEATURES• Meets and exceeds OSHA 1910.212, ANSI

B11.3 and B11.19• Provides two-hand control safeguarding device• Interface provided for light curtain(s)• Redundant/cross-checking microprocessors• Time-based brake monitor• Stop-time measurement test• Regular and adjustable timed inch• Adjustable sequence stop angle• 7-digit stroke and batch counters with preset,

and a 7-digit total counter• 1 auxiliary output with 2 contacts• 6 user-programmable 24-V DC static diagnos-

tic or die protection inputs• 2 user-programmable 24-V DC static or cyclic

die protection inputs• 1 PLS (programmable limit switch) output—

on/off angle, timed off, or counted output• Information displayed during the machine run

cycle: mode of operation, strokes per minute, stoptime, stroke counter, batch counter, and angle ofcrankshaft

• 4-line x 20-character LCD (liquid crystal display)with 20-key operator interface

• Absolute resolver with sync switch for timingand motion detection

• Display of text in English or Spanish

KEYPAD/DISPLAYThe keypad/display is used to enter setup infor-mation, monitor machine operation, and displaymessages to the user. The keypad/display has a 4-line x 20-character LCD (liquid crystal display)with 20 keys for entering information and pro-gramming. As standard, this keypad/display ismounted in the control box. For operator conve-nience, it can be furnished in a remote enclosure upto a maximum of 150' from the SSC-1500 controlmodule (see page 166).

PROGRAMMABLE SETTINGS AT THE KEYPAD

The sequence-stop angle setting programs thestopping position on the downstroke for thesequence mode of operation—no manual setting ofcams.

On two-speed press brakes, a low single-stroketop-stop angle can be programmed. The high/lowautomatic speed change is also programmable atthe keypad.

DIAGNOSTICS AND FAULT MESSAGESThere are eight 24-V DC current-sinking program-mable diagnostic inputs provided for the user. Afault message, input logic, and stop type can beassigned to each input from the list below. When afault condition is detected, the machine will top stopor emergency stop, and the assigned message willbe displayed. This feature helps when troubleshoot-ing common fault conditions.

Fault Message List:

Clutch/Brake Air FaultCounterbalance Air FaultDual Solenoid FaultClutch Valve Fault*Brake Valve Fault*Lube FaultHigh Lube PressureLow Lube PressureLow Lube LevelMain Motor Overload Ram-Adjust Motor

Overload Lube Motor Overload Auxiliary Motor

OverloadGuard Interlock Open Front Guard Open Rear Guard Open

*Only used on machines that have a split clutch andbrake, and two dual valves have been furnished.

**Messages typically used for die protection.

Left Side Guard OpenRight Side Guard OpenFeeder Fault Load Monitor FaultSafety Block Interlock Shut Height Fault Variable Speed Drive

Fault Die Protection Fault**Short Feed Fault**Part Ejection Fault** Stock Buckle Fault**End of Stock Fault**Pilot Pin Fault**Part Input #1**Part Input #2**Part Input #3**




SSC-1500 PRESS BRAKE CONTROL (continued)

SSC-1500 Custom Control Box (Operators Located on Door Front)

Custom SSC-1500 press brake control boxes arealso available to fit your particular requirements.These boxes are furnished with an IEC through-the-door main power fused disconnect switch andan IEC magnetic motor starter (with push but-tons). A reversing slide-adjust motor starter mayalso be included. They are prewired and built intoa NEMA 12 enclosure.

Operator controls can be furnished on the front(F) door of the control box or on a plain (P) doorwith no operators except a disconnect switch. TheSSC-1500 custom control box can be furnished inmany different ways. Please refer to page 167 forthe part numbering system.

If a plain door custom control or a subpanel cus-tom control is required, a remote operator stationis needed. See ordering information on page 166.

NEMA-style disconnect switches and motorstarters, and brand name components specifiedby our customers are also available.

To ensure the starter(s) and disconnect are sizedproperly, please check horsepower for the maindrive motor and slide adjust motor (if furnished)on the press brake, as well as full-load amps, andprimary voltage to the press brake. After obtainingthis information, please go to the chart on page167 to determine the proper custom control boxpart number. Follow directions 1-6 to obtain thecorrect part number of the control box.

Example of the part numbering system: The pressbrake requires a PSD-400 light curtain interface,a 60-A disconnect switch, a reversing 23-A revers-ing main motor starter, and a 12-A reversing ramadjust motor starter. All operators will be locatedon the door of the enclosure except the ram adjustmotor control which will be located remote. Thepart number to order would be PRS-263-FA6.

FusedDisconnect

Switch

CUSTOM SSC-1500 PRESS BRAKE CONTROL BOX

Keypad/DisplayWith Selector

Switches



Fax 815-874-6144164 FAB


SSC-1500 REMOTE OPERATOR-STYLE CONTROL BOXES FOR PRESS BRAKES

Style Z Remote Operator Control BoxClutch/Brake Control and Operators In One Box

These remote operator-style clutch/brake controlboxes include the same features and modes ofoperation as the standard SSC-1500 control boxesdescribed on pages 161-162. However, they donot have a control transformer. These controlboxes are designed in a smaller enclosure so theycan be conveniently located on the front of themachine near the operator.

These controls are for applications where themachine’s existing magnetic motor starter, fuseddisconnect switch, and control transformer meetthe safety requirements and can be reused. If theexisting control transformer cannot be reused or anew control transformer is required, please con-tact the factory.

The three remote operator-style control boxesavailable have the keypad/display and all opera-tors on the door of the 20" x 20" x 8" NEMA 12enclosure. Please see the next page for the threestyles available.

Interior of Style X RemoteOperator Control Box

SSC-1500 PressBrake Control

Module

Master ControlRelayTerminals




SSC-1500 REMOTE OPERATOR-STYLE CONTROL BOXES FOR CUSTOM CONTROLS

Style X Includes:• Keypad/display• Program/run/off selector switch• Mode selector switch• Actuating means selector switch• Light curtain off/on selector switch• Internal clutch/brake control module, master control

relay, and terminals

Style Z Includes:• Keypad/display• Program off/on selector switch• Mode selector switch• Actuating means selector switch• Light curtain off/on selector switch• Internal clutch/brake control module, master control

relay, and terminals• Self-latching emergency-stop button• Two guarded run/inch buttons located on the sides of

the enclosure

Style Y Includes:• Keypad/display• Program/run/off selector switch• Mode selector switch• Actuating means selector switch• Light curtain off/on selector switch• Internal clutch/brake control module,

master control relay, and terminals• Self-latching emergency-stop button



Fax 815-874-6144166 FAB


SSC-1500 PRESS BRAKE CONTROL

KEYPAD/DISPLAY KITPart No. LLD-1519 (for SSC-1500 PRS Controls)Part No. LLD-1543 (for SSC-1500 PRT Controls)The keypad/display kit can be used with any of the control boxes or the control module kit. This kitincludes the keypad/display, a screen label, a program off/on selector switch, a light curtain off/onselector switch, a hand, hand/foot, foot selector switch, an off/inch/single/sequence stop selectorswitch, and 25' of cable. Additional push buttons, nameplates, and selector switches for motor starters,etc., can be furnished depending on the features required.

A resolver/pulser assembly and cable, Part No. CMS-115, is required with any of the control selections.See page 168 for further details on this component.

REMOTE OPERATOR STATIONSFor operator convenience, a remote operator station can be furnished foruse with a plain-door standard control box, plain-door custom controlbox, or control module kit. The remote operator station contains the key-pad/display, program off/on selector switch, and other selector switchesand push buttons as required.

Remote operator stations are available in a standard format or can becustomized to meet any requirements. Select from the following remoteoperator stations or contact the factory with your special requirements.

If any of the above remote operator stations are required without the enclosure, please consult the factory.

CONTROL MODULE KIT Part No. PRS-000-KA (for SSC-1500 PRS Controls)Part No. PRT-000-KA (for SSC-1500 PRT Controls)

A control module kit allows the end user to update the clutch/brake control of a press brake with mini-mum equipment costs. The kit is supplied without the control enclosure, panel, control transformer, con-trol fuse, terminal strips, wire duct, and wiring.

This control module kit includes the control module, master control relay, shock mounts, fasteners, sup-pressors, danger labels, and electrical prints. A keypad/display kit is required unless a remote operatorstation is used (see below).

A set of electrical prints is supplied to show typical wiring and all mounting dimensions are provided inorder for a qualified person to install the control module kit. The minimum area required on an existingcontrol panel to install this kit is 14" H x 12" W x 5" D.

Remote Operator Stations for PRS Controls Remote Operator Stations for PRT ControlsFEATURES LLD-1514 LLD-1515 LLD-1516 LLD-1517 LLD-1518 LLD-1534 LLD-1535 LLD-1536 LLD-1537 LLD-1538

Keypad/Display X X X X X X X X X X

Program Off/On Selector Switch X X X X X X X X X X

Light Curtain Off/On Selector Switch X X X X X X X X X X

Off/Inch/Single/Sequence Stop Selector Switch X X X X X X X X X X

Hand, Hand/Foot, Foot Selector Switch X X X X X X X X X X

High, High/Low, Low Selector Switch X X X X X

Main Motor Start and Stop Push Buttons

X X X X X X X X

Main Motor Forward/Reverse Selector Switch

X X X X

Ram-Adjust Off/On Selector Switch X X X X

Ram Raise Push Button X X X X

Ram Lower Push Button X X X X

Remote OperatorStationPart No.

LLD-1514



SELECTING AN SSC-1500 PRESS BRAKE CONTROLTo determine the 8- or 9-digit configured part number for the press brake control required, follow directions 1-6 below and use the information in the PART NUMBERING SYSTEM CHART below.

1. The first 3 digits for all SSC-1500 press brake controls are PRS or PRT.

2. The 4th digit determines the size of the disconnect switch, if provided, in the control enclosure. Zero (0) indicates nodisconnect switch provided.

3. The 5th and 6th digits determine the size and type of motor starter(s), if provided, in the control enclosure. Zeros (00) on both positions indicate no motor starter(s) provided.

4. The 7th digit determines the location of the operator controls, or if it is a style X, Y, or Z control without the controltransformer.

5. The 8th digit is for the type of light curtain interface provided.

6. The 9th digit (if required) will indicate the type of modifier provided: i.e., motor control operators remote.

SYSTEM TYPE PRODUCT CATEGORY

PRS —SSC-1500 Press Brake ControlPRT —SSC-1500 Press Brake Control for Two-Speed Air-Clutch

Press Brakes

DISCONNECT SWITCH SIZE (Allen-Bradley—IEC) (PLUS MAXIMUM MAIN MOTOR FLA)

0 —No Disconnect Switch1 —30-A Disconnect— 1- to 17-FLA Main Drive Motor2 —60-A Disconnect— 18- to 34-FLA Main Drive Motor 3 —100-A Disconnect— 35- to 57-FLA Main Drive Motor 4 —200-A Disconnect— 58- to 114-FLA Main Drive Motor 5 —400-A Disconnect— 115- to 228-FLA Main Drive Motor

REVERSING/NONREVERSING MAIN MOTOR STARTERSWITH OR WITHOUT RAM ADJUST

0 —No Motor Starters1 —Nonreversing Main Motor Starter Without Ram Adjust2 —Reversing Main Motor Starter Without Ram Adjust3 —Nonreversing Main Motor Starter With 12-A Ram Adjust 4 —Nonreversing Main Motor Starter With 16-A Ram Adjust 5 —Nonreversing Main Motor Starter With 23-A Ram Adjust 6 —Reversing Main Motor Starter With 12-A Ram Adjust 7 —Reversing Main Motor Starter With 16-A Ram Adjust 8 —Reversing Main Motor Starter With 23-A Ram Adjust

MAIN MOTOR STARTER SIZE (Allen-Bradley—IEC ‘C’ Series)0 —No Starter

IEC1 —12 A 2 —16 A 3 —23 A 4 —30 A 5 —37 A 6 —43 A 7 —60 A 8 —72 A 9 —85 A A —110 A (‘B’ Series)B —180 A (‘B’ Series)C —250 A (‘B’ Series)

MODIFIER-- —Blank, No Modifier5 —Main Motor Operators Remote*6 —Ram-Adjust Operators Remote*7 —Main Motor and Ram-Adjust Operators Remote*

LIGHT CURTAIN OPTIONS

A —Standard Rockford Systems Light Curtain—PSD-400B —Data Instruments—Shadow I, II & IVC —Sick Optic—“LUV”D —Data Instruments—Shadow VE —ISB - 4F —Rockford Systems—PSD-900G —Rockford Systems—KYM-XXX7 & PSD-900 (DJI)H —STI MiniSafe “B” SeriesJ —STI MiniSafe “C” SeriesK —Banner Mini-ScreenL —Frost Security ForceM —Rockford Systems—PSD-700/STI DuoSafeN —Data Instruments—Shadow VIP —Rockford Systems—KTR-2XX (DJI)R —Banner Beam ArrayS —Standard Rockford Systems Light Curtain—PSD-300T —Link Black MaxU —ISB Merlin

CONFIGURATION & OPERATOR LOCATION

F —Keypad/Display and all Operators on Door of EnclosureP —Keypad/Display and all Operators Remote (Plain Door)S —Subpanel Only—Without Enclosure, Keypad/Display, and

OperatorsK —Kit with Module and Control Relays Only—Without

Enclosure, Subpanel, Transformer, Keypad/Display, andOperators

C —ConsoleX —Same as F (above) Without Control TransformerY —Same as F (above) Without Control Transformer but with

E-StopZ —Same as F (above) Without Control Transformer but With

E-Stop and Two (2) Guarded Run/Inch Buttons on the Enclosure

Motor Horsepower Chart—3 Phase208 V 230 V 460 V 575 V

– – – 7.53 3 7.5 105 5 10 15

7.5 7.5 15 20– 10 20 2510 – 25 3015 15 30 4020 20 40 50– 25 50 6030 30 60 7550 60 125 15075 75 150 200

SSC-1500 PRESS BRAKE CONTROL PART NUMBERING SYSTEM CHARTP R X - X X X - X X X

The sample shown, PRS-263-FA, indicates that the custom part-revolution control box with sequence stop mode of opera-tion will contain a PSD-400 light curtain interface, an IEC 60-A disconnect switch, an IEC 23-A reversing main drive motorstarter, and an IEC 12-A reversing ram-adjust motor starter. The keypad/display and all operators will be located on thedoor of the enclosure, except for the ram-adjust motor controls which will be located remote.

P R S - 2 6 3 - F A 6SAMPLE1 2 3 4 5 6

*See pages 196-197 for remote stations.



Fax 815-874-6144168 FAB

RESOLVER/PULSER ASSEMBLYPart No. CMS-115*—40' CablePart No. CMS-115-100—100' Cable

An absolute resolver/pulser cycle timing device isrequired to provide the angular position and veloci-ty/motion information of the machine crankshaft to thecontrol. The resolver is a highly accurate and repeatabledevice which uses an internally mounted pulser camand disk to verify the position of the crankshaft.

The resolver/pulser timing device is contained in arugged, heavy-duty housing with a spring-compressionbase. The spring base helps isolate the resolver fromshock load and vibration that are common occurrenceson press brakes. This provides longer life for the compo-nents inside the resolver. The spring base also functionsas a drive chain tightener.

This resolver allows the set-up person to make allcycle timing adjustments with the keypad/display.These adjustments include sequence set point, muteset point, and high/low speed change.

The 3⁄4" diameter steel drive shaft is mounted in sealedball bearings. The resolver/pulser is furnished with a40' cable (or optional 100' cable) that is connected tothe drive assembly and wires into the control box. Thecable can be cut to length and wired to terminals.

SPROCKET ASSEMBLYPart No. CML-000*

A sprocket set consists of two 1:1 sprockets. One fits onthe 3⁄4" shaft of the CMS-115 resolver/pulser assembly;the other sprocket is for mounting to the end of thepress brake crankshaft to rotate the cycle timing device.These 48-tooth sprockets are designed to accept ANSINo. 35 roller chain.

Special SprocketsPart No. CML-100If your machine does not have access to the crankshaftto provide 1:1 ratio drive for the resolver/pulser assem-bly, special sprocket sets are available to match the geardrive ratio of the machine. The smaller of the two sprock-ets is attached to the drive of the machine (usually on thebackshaft) and the larger sprocket is attached to theresolver/pulser assembly. Please provide the gear ratio ofthe press brake when ordering these special sprocketsalong with the brand name and serial number of thepress brake.

ROLLER CHAINPart No. CMS-515*ANSI No. 35 roller chain and master link, 10 feet longfor driving any of the above sprockets.

*Included in component package on page 171.

Sprocket Set

Roller Chain


SSC-1500 INDIVIDUAL COMPONENTS

Special Sprocket Set

Cable

Resolver/PulserAssembly





SSC-1500 INDIVIDUAL COMPONENTS (continued)

PALM BUTTON ASSEMBLYTo meet OSHA and ANSI safety requirements, the two run/inch buttons must be protected against acci-dental operation (ring guards) and separated to require the use of both hands to operate them. Theymust also be mounted at the proper safety distance, if they will be used as a safeguard. The contactarrangement of these buttons is 1 NO and 1 NC.

Part No. CTL-507*This palm button assembly consists of two black run/inchbuttons (with ring guards) and a red emergency-stop button.Mounting boxes are furnished with each button. The redpalm button has 1 NO and 1 NC arrangement plus amechanical latch.

See pages 187 and 188 for other palm button assemblyoptions. See page 124 for control bars.

MONITORED DUAL-SOLENOID AIR VALVE1⁄2" Port—Part No. RCL-552* for Mechanical-Friction ClutchThis three-way cross flow, series/parallel air valve includes an air pressureelectrical output monitor and muffler. Air is put into the clutch and brakewhen the dual-solenoid air valve is electrically energized. When it is de-ener-gized, the air is dumped through the muffler from the clutch and brake.

This valve consists of two main parts: the piloted monitor assembly and thevalve body assembly. The two main valve elements move simultaneously dur-ing normal operation. If these elements should fail to move simultaneously, theinternal spool shifts; inhibiting furthermachine operation. The pressure switch willprovide a signal to the control system toindicate a fault condition. A reset button onthe side of the valve can be used to reset thevalve if an accidental valve fault is detected.

1⁄2" FILTER-REGULATOR-LUBRICATOR ASSEMBLY (FRL)Part No. RCL-044* for Mechanical-Friction ClutchThis assembly is required to meet OSHA and ANSI standards. This FRL assemblyfilters, regulates, and lubricates the air going through it. This filtered and lubricat-ed air then goes to the dual-solenoid air valve assembly and clutch/brake. The reg-ulator should be adjusted to meet the original equipment manufacturer’s require-ments. The assembly include a gauge, coupling, and a steel mounting bracket.

AIR PRESSURE SWITCH—Part No. CTD-062*This air pressure switch monitors low pressure to either the clutch/brake-actuating aircylinder and valve or slide counterbalance systems. Each system requires an air pressureswitch. The pressure switch must be set so if the air pressure operating the component isnot adequate, or if the air pressure suddenly drops, the press brake becomes inoperable.

This switch is used on applications where the air pressure should not go below a prede-termined amount. Each air pressure switch’s low level setting is based on each application.

Note: When press brakes have an air counterbalance system, an air pressure switch andcheck valve are required. See page 116 for a check valve.

Monitored Dual-Solenoid Air Valve

AAvveerraaggee CCvv ((FFllooww RRaattee))

PPaarrtt NNoo.. PPoorrttss PPoorrttss11 ttoo 22 22 ttoo 33

RCL-552 3.0 8.0

Filter-Regulator-Lubricator Assembly

Air PressureSwitch

Part No. CTL-507



Fax 815-874-6144170 FAB

FOOT SWITCH—Part No. CTD-011*This foot switch is protected from unintentional operation. A die-castcover protects the top and both sides, and the front is protected by ahinged flap. The flap must be lifted with the toe before the foot mayenter the switch. The electrical contact arrangement is 1 NO and 1 NC.

SUPERVISORY CONTROL STATIONPart No. LLD-1501Part No. LLD-283* (required when a USC-000 is used–see below)

When multiple operator stations are required,this supervisory control station is furnishedseparately for each set of palm buttons and/orfoot switch operator station. It has its ownenclosure and includes an off/on key-operatedselector switch and a green on indicator light.The enclosure size is 3½" x 6¾" x 3".

MULTIPLE-OPERATOR JUNCTION BOX—Part No. USC-000*When multiple operator stations are required, this junction box is fur-nished separately for wiring up to four (4) operator stations. This junc-tion box interfaces palm button assemblies/control bars and footswitches, and will not allow the press brake to run if palm buttons ora foot switch is actuated without its supervisory control station on. Alighted push button with nameplate indicates a fault condition of anoperator station. The button is pushed to reset. The enclosure size is16" x 14" x 6".



SSC-1500 INDIVIDUAL COMPONENTS (continued)

Crankshaft Angle Display

FootSwitch

Multiple-OperatorJunction Box

CRANKSHAFT ANGLE DISPLAYPart No. FTL-055The optional crankshaft angle display is a unit that shows the angularposition of the crankshaft for mechanical power presses and pressbrakes. The crankshaft position is shown both graphically (with redLEDs in a circle) and numerically (with a large, red, three-digit LED).The large display can be easily seen which helps with setup, removalof stuck workpieces, or for assistance during emergency extractionsprocedures.

FEATURES• Large LED numerical display and circular LED graphic display

can be easily seen• Mounts easily• Supplied with 25' of cable for connection to the control• Helps satisfy the requirements of Canadian Standard CSA Z142-02,

Code for Power Press Operation: Health, Safety, and GuardingRequirements, for indication of crank angle position



To complete the SSC-1500 control system for mechanical-friction clutch press brakes, component pack-ages are available. If component packages for air clutch press brakes are required, please see page 175.Component packages are listed in the chart below. These packages can be furnished with:

• A STANDARD Control (pp. 161-162) • A REMOTE OPERATOR-STYLE Control (pp. 164-165)

• A CUSTOM Control (p. 163) • A SPECIAL Control (p. 163)

• A SUBPANEL

To select the proper component package to go with your control box, determine your requirements below:

Modes of operation and actuating means required.Number of operator stations required.Type of sprockets required.

A

B

C

COMPONENTS REQUIRED IN ADDITIONTO THOSE LISTED IN STANDARD PACKAGE AT LEFT

CTL-507 Palm ButtonAssembly

CTD-011 Foot SwitchLLD-283 SupervisoryControl Station (2)

USC-000 Multiple Op-erator Junction Box

CML-100 SpecialSprockets

(Replaces CML-000)

MNK-001-SSPComponent Package

MNK-003-SSPComponent Package

MNK-002-SSPComponent PackageMNK-000-SSP Standard Component Package

PRS or PRTControl Box

• Two-Hand Inch• Two-Hand Single

Stroke• Foot Single

Stroke• Sequence Stop

CMS-115 Resolver/Pulser Timing DeviceWith 40' Cable and Plug

CML-000 Sprocket AssemblyCMS-515 10' ANSI No. 35 Roller ChainRCL-552 1⁄2" Dual-Solenoid Air Valve RCL-044 1⁄2" Filter-Regulator-Lubricator

AssemblyCTD-062 Air Pressure SwitchCTL-507 Palm Button AssemblyCTD-011 Foot Switch

STANDARDSPROCKETS

SPECIALSPROCKETS


SPECIALSPROCKETS

STANDARD SPROCKETSC

B B

C C CA

Note: If the press brake has an air counterbalance, an additional CTD-062 air pressure switch is required.

Please select an air cylinder from page 172 or 173 to complete this package. For light curtains, mount-ing brackets and barriers for sides of point of operation, see pages 45-73.


COMPONENT PACKAGE FOR MECHANICAL-FRICTION CLUTCH PRESS BRAKES ONLY

Modes of operation: Inch, Single, and Sequence Stop (Hand or Foot)A



LLD-283 SupervisoryControl Station (2)



(Replaces CML-000)


(Replaces CML-000)CTL-507 Palm ButtonAssembly



MNF-001-SSPComponent Package

MNF-003-SSPComponent Package

MNF-002-SSPComponent PackageMNF-000-SSP Standard Component Package


Stroke



AssemblyCTD-062 Air Pressure SwitchCTL-507 Palm Button Assembly

STANDARDSPROCKETS

SPECIALSPROCKETS


MODES OFOPERATION TO

BE USED

SPECIALSPROCKETS


STANDARD SPROCKETSC

B B

C C C

Modes of operation: Inch and Single (Hand Only)A







Fax 815-874-6144172 FAB

RCL-SERIES AIR CYLINDERSAn air cylinder must be ordered separately formechanical-friction-clutch press brakes that areusing the packages described on page 171. It isrequired to complete the control system. Standard aircylinders are single-acting, pull-type, and spring return. A clevis mounting arrangement is furnished forattaching the cylinder to the machine frame. A rod, yoke, and pin assembly are used for ease in con-necting to the existing clutch/brake operating rod. Other types of air cylinders are also available. Beforeordering an air cylinder, please check the linkage where the cylinder will be inserted for proper strokeand diameter of air cylinder needed. Please consult the factory for any special requirements, such aspush-type cylinders or longer- or shorter-stroke cylinders.

Part No. RCL-004—Air Cylinder300-lb pull @ 75 PSI, 21⁄2" bore x 2" stroke for press brake sizes up to 8' beds. (Cylinders with longer orshorter strokes, and push cylinders are available upon request.)

Part No. RCL-005—Air Cylinder500-lb pull @ 75 PSI, 31⁄4" bore x 2" stroke for press brake sizes 10' to 14' beds. (Cylinders with longer orshorter strokes, and push cylinders are available upon request.)Note: Please see the next page for special tie-rod-constructed air cylinders (for larger press brakes) or special

mounting features.

PEDAL ADDED AIRCYLINDER

MASTERCYLINDER

MASTER CYLINDER MAY HAVETO BE MOVED BACK TO ALLOW

SPACE FOR AIR CYLINDER

MACHINE FRAME

LINE TOCLUTCH

ACTUATORCYLINDER

FLOOR LINE

BED

MASTER CYLINDER-OPERATED PRESS BRAKES (OLDER WYSONG PRESS BRAKES)Press brakes that use a master cylinder-type hydraulic system to operate a mechanical-friction clutchand brake can be retrofitted with the controls illustrated in this catalog. The following are two ways theair cylinder that operates the clutch and brake can be applied.

MECHANICAL FOOT PACKAGE—BIG FOOT™

FOOT SWITCH PACKAGE

2. For control systems on pages161-171, the RCL-004 aircylinder can be applied asillustrated.

1. The air cylinder is added in the linkageto the master cylinder for the Big Foot™control package as illustrated. (Seepages 155-160 for package items.)

MECHANICAL PEDAL/TREADLE IS REMOVED AND FOOT

SWITCH IS FURNISHED FOR ACTUATING PRESS BRAKE

AIR

CYLINDER

MASTER CYLINDER

MACHINE FRAME

LINE TOCLUTCH

ACTUATORCYLINDER

FLOOR LINE

SPECIAL ADDEDBRACKET FABRICATED

AT TIME OF INSTALLATION

BED

FOOT SWITCH



TYPE B—Side-Foot MountThis air cylinder can be mounted vertically, hori-zontally, or any angle depending upon application.

TYPE C—Front Flange Mount

This air cylinder is usually installed in applica-tions where the cylinder rod must go through theframe of the press brake. Rear-flange mount androd extensions at both ends are also available.

OTHER AIR CYLINDERS AVAILABLEThe following custom tie-rod-constructed aircylinders can be furnished instead of the standardRCL-series cylinders offered on the previous page.These cylinders are furnished when a larger andmore durable cylinder is needed to engage anddisengage the mechanical-friction clutch andbrake of press brakes or when the clevis mountwill not fit the machine. Please note that they areoffered in tie-rod construction, both pull-type andpush-type, single action with spring return. Thepush type has an internal spring. All cylinders arefurnished with yoke and pin on the operating rodto attach to the machine linkage.

When applying an air cylinder to the machine, makesure the alignment (with the machine linkage) is astraight line. Also make sure the cylinder rod, yoke,or any moving parts will not bind after installation.Be sure the rod stroke is not too long—it could causejackknifing of the cylinder and clutch operating rod.Please consult the factory for any other specialcylinder configuration (i.e., longer or shorter stroke)or additional force needed on the return spring.

TYPE A—Clevis MountThis air cylinder is usually mounted in the verti-cal position on the side of the machine.

Part No. Bore Stroke

Approx.OverallLength

ReturnSpring

Pressure

Amount of Pull or Push

Force at 75 PSI

PULL TYPERCK-544RCK-545RCK-546RCK-547RCK-548RCK-549RCK-550RCK-551RCK-552

PUSH TYPERCK-553RCK-554RCK-555RCK-556RCK-557RCK-558RCK-559RCK-560RCK-561 RCK-590

2"2"2"3"3"3"4"4"4"

2"2"2"3"3"3"4"

4"4"4"

2"3"4"2"3"4"2"3"4"

2"

3"4"2"

3"4"2"

3"4"5"

211⁄2"231⁄2"251⁄2"201⁄2"221⁄2"241⁄2"28"30"32"

15"16"17"20"21"22"

171⁄2"

181⁄2"191⁄2"201⁄2"

6040201208040270195120

6040201208240270

195120120

100100100295295295460460460

135135135330330330520

520520520



ReturnSpring

Pressure


Force at 75 PSI


PUSH TYPERCK-571RCK-572RCK-573RCK-574RCK-575RCK-576RCK-577RCK-578RCK-579

2"2"2"3"3"3"4"4"4"

2"2"2"3"3"3"4"

4"4"

2"3"

4"2"3"4"2"3"4"

2"3"4"2"3"4"2"

3"4"

21"

23"25"23"25"27"28"30"32"

16"17"18"21"22"23"

221⁄4"231⁄4"241⁄4"

60

40201208040270195120

6040201208040270195120

100

100100295295295460460460

135135135330330330520520520



ReturnSpring

Pressure


Force at 75 PSI


PUSH TYPERCK-535RCK-536RCK-537RCK-538RCK-539RCK-540RCK-541RCK-542RCK-543

2"2"2"3"3"3"4"4"4"

2"2"2"3"3"3"4"

4"4"

2"3"4"2"3"4"2"3"4"

2"3"4"2"3"4"2"

3"4"

23"25"27"26"28"30"

301⁄2"321⁄2"341⁄2"

17"18"19"22"23"24"

211⁄2"221⁄2"231⁄2"

6040201208040270195120

6040201208240270

195120

100100100295295295460460460

135135135330330330

520520520

TYPE A—Clevis

TYPE B—Side Foot

TYPE C—Front Flange

Push Type*

Pull Type

Pull Type

Pull TypePush Type*

Push Type*

*The spring is inside the cylinder on push-type air cylinders.

Side Feet

Clevis

Flange



Fax 815-874-6144174 FAB

COMPONENTS FOR SINGLE-SPEED AND TWO-SPEED AIR-CLUTCH PRESS BRAKESINDIVIDUAL COMPONENTS REPLACING COMPONENTS IN PACKAGES ON PAGE 171. (Please see pages168-170 for descriptions of other components in the packages.)1. Part No. RCL-554 replaces Part No. RCL-552 Dual-Solenoid Air Valve

2. Part No. RCL-045 replaces Part No. RCL-044 FRL AssemblyPlease see next page for component package part numbers.3⁄4" MONITORED DUAL-SOLENOID AIR VALVE—Part No. RCL-554This three-way cross flow, series/parallel air valve includes an air pressure electricaloutput monitor and muffler. Air is put into the clutch and brake when the dual sole-noid air valve is electrically energized. When it is de-energized, the air is dumped fromthe clutch and brake and the press brake stops.

This valve consists of two main parts: the piloted monitor assembly and the valve body assembly. Thetwo main valve elements move simultaneously during normal operation. If these elements should fail tomove simultaneously, the internal spool shifts; inhibiting further machine operation. The pressureswitch will provide a signal to the control system to indicate a fault condition. A reset button on the sideof the valve can be used to reset the valve if an accidental valve fault is detected.Note: Other valves are also available. Please see page 115.

3⁄4" FILTER-REGULATOR-LUBRICATOR ASSEMBLY (FRL)—Part No. RCL-045This assembly is required to meet the OSHA and ANSI requirements. This FRL assem-bly filters, regulates, and lubricates the air going through it. This filtered and lubricatedair then goes to the dual-solenoid air valve assembly and clutch/brake. The regulatorshould be adjusted to meet the original equipment manufacturer’s requirements. Theassembly includes a gauge, coupling, and a steel mounting bracket.

SELECTING A CONTROL SYSTEM FOR PART-REVOLUTION-AIR-CLUTCH PRESS BRAKES1. Determine if the press brake is a single- or two-speed press brake (one or two clutches).

2. If the press brake is a single-speed and sequence-stop operation is required, the SSC-1500 control on pages161-171 can be used. Select a component package from page 171. Light curtains, mounting brackets, andlockout valves are not part of the component packages and must be ordered separately. Please see pages45-73 for light curtain options and mounting brackets, and page 119 for an appropriate lockout valve.

3. If the press brake has a two-speed air clutch, the standard SSC-1500 control on pages 161-171 can be used.Select the component package from page 175. Light curtains mounting brackets (pages 45-73), and lockoutvalves (page 119) are not part of the component packages and must be ordered separately.

NOTE: See page 213 for safeguarding the back side of the press brake.

INTRODUCTIONAir-operated clutches and brakes use a friction arrangement that causes engagement and disengage-ment. When air pressure enters the clutch and brake, through a monitored dual-solenoid air valve, theclutch engages and the brake is released. To stop the motion of the press brake, the opposite takes place.

Some press brakes have one clutch that allows only one speed when cycling the machine. Other pressbrakes have two clutches for two speeds. See the list of manufacturers of these types of press brakes onpages 150-151. Two-speed air-clutch press brakes allow the slide to approach the workpiece at a fastspeed, disengage (air is dumped from one clutch), then allow the second clutch to engage for a slowerspeed through the bending operation to the bottom of the stroke. This prevents fast whip-up action ofthe material. The clutches are again switched for rapid travel back to the top of the stroke.

If these types of machines are newer, they do not always require a completely new clutch/brake controlpackage for control reliability. To verify this, please send the electrical schematics to our engineeringdepartment for review. These schematics are also necessary to review for proper interface when a lightcurtain will be furnished. If a single- or two-speed air-clutch press brake doesn’t have control reliabilityand when brake monitoring is needed, the SSC-1500 control can be furnished.

SINGLE-SPEED AND TWO-SPEED AIR-CLUTCH PRESS BRAKES








(Replaces CML-000)





TNF-002-SSPComponent Package

TNF-006-SSPComponent Package

TNF-004-SSPComponent PackageTNF-000-SSP Standard Component Package


Stroke



AssemblyCTD-062 Air Pressure Switch

(For Clutch/Brake)CTL-507 Palm Button Assembly


BE USEDPRS or PRTControl Box

Modes of operation: Inch and Single (Hand Only)A

Note: If the press brake has an air counterbalance, an additional CTD-062 air pressure switch is required.






(Replaces CML-000)





TNK-002-SSPComponent Package

TNK-006-SSPComponent Package

TNK-004-SSPComponent PackageTNK-000-SSP Standard Component Package


Stroke• Foot Single

Stroke• Sequence Stop



AssemblyCTD-062 Air Pressure Switch

(For Clutch/Brake)CTL-507 Palm Button AssemblyCTD-011 Foot Switch


BE USED


Modes of operation: Inch, Single, and Sequence Stop (Hand or Foot)A

To complete the SSC-1500 single- and two-speed air clutch press brake control system, component packagesare available. Component packages are listed in the charts below. These packages can be furnished with:

• A STANDARD Control (pp. 161-162) • A REMOTE OPERATOR-STYLE Control (pp. 164-165)

• A CUSTOM Control (p. 163) • A CONTROL CONSOLE

• A SPECIAL Control (p. 163) • A SUBPANEL

To select the proper component package to go with your control box, determine your requirements below:

Modes of operation and initiating means required.

Number of operator stations required.

Type of sprockets required.

A

B

C

SINGLE-SPEED AND TWO-SPEED AIR-CLUTCH PRESS BRAKES

COMPONENT PACKAGES FOR SINGLE- AND TWO-SPEED AIR-CLUTCH PRESS BRAKES

STANDARDSPROCKETS

SPECIALSPROCKETS


SPECIALSPROCKETS

STANDARD SPROCKETSC

B B

C C C

STANDARDSPROCKETS

SPECIALSPROCKETS


SPECIALSPROCKETS

STANDARD SPROCKETSC

B B

C C C



Fax 815-874-6144176 FAB

INTRODUCTIONHydraulically operated press brakes are widely usedin industry today. Manufacturers of these types ofpress brakes are listed on pages 150-151.

Most hydraulic press brakes have single-strokeand high/low modes for cycling the machines.When the high/low mode is selected, usually theslide or beam will start to close at high speed andthen automatically go to a slow speed to finishbending the workpiece. The slide or beam willusually return at a high speed.

These press brakes usually have a down-actingslide or an up-acting slide (moving lower slide orbeam). The existing electrical controls may havecontrol reliability. For verification of this, a reviewof the electrical and hydraulic schematics by ourengineering department is required.

SAFEGUARDINGLike any other hydraulically operated press brake,the moving slide creates a point-of-operation haz-ard as the dies close. To safeguard thesemachines, a light curtain control package can beinstalled. These controls also include two-handcontrol that can be used as a point-of-operationsafeguarding device. The palm buttons must bepressed concurrently and maintained during thehazardous portion of the stroke. Release of one or

both palm buttons reverses or stops the action ofthe slide. The palm buttons must also be mountedat the proper safety distance. Please refer to thesafeguarding section of this catalog for choices ofother safeguards that are available.

SELECTING A CONTROL SYSTEM FORHYDRAULIC PRESS BRAKES1. Identify if the press brake is a down-acting or

an up-acting press brake. The electrical andhydraulic schematics must be sent to RockfordSystems for our engineering department toreview to determine if the press brake has con-trol reliability. If a light curtain or two-handcontrol will be furnished, these schematics arerequired to properly interface these safeguardsinto the control system.

2. Light curtains and light curtain mountingbrackets are not part of the component pack-ages and must be ordered separately. Pleasesee pages 45-73 for light curtain options andmounting brackets.

3. Determine what rear safeguarding must beapplied. See page 213 for a cable and push-but-ton e-stop assembly.

UNGUARDED SAFEGUARDED WITH LIGHT CURTAIN ORTWO-HAND CONTROL

HYDRAULIC PRESS BRAKES



Standard Control Box (HPS-000-FA Shown)

Selector Switches

Display Screen andKeypad

Off/Program/Run Selector Switch

Light Curtain andMounting Bracket

SSC-500 Custom ControlBox


SSC-500 HYDRAULIC PRESS BRAKE CONTROL

This SSC-500 solid-state control system isdesigned for use on hydraulic press brakes. It isdesigned and built to comply with OSHA 29 CFR1910.212 and ANSI B11.3 and B11.19. This con-trol can update or replace existing relay-based orPLC control systems on hydraulic press brakesthat are found in users’ plants or can be furnishedfor new hydraulic press brakes.

The control includes control reliability, light curtaininterface, and diagnostics (one user-programmableinput). It also includes batch and stroke counterswith presets, and a hard-wired emergency-stopmaster control relay.

The SSC-500 is an economic, full-featured dual-microprocessor-based control system. The systemuses redundant inputs from components such aspalm buttons, foot switches, and light curtain(s).

The system output to the solenoid valves is pro-vided by one safety relay with force-guided contactsand two 115-V AC solid-state relays. These outputrelays are independently controlled and cross-checked by the microprocessors. This allows con-trol reliable operation of the outputs in the event ofa single control component failure.

The standard control box is a 24" x 24" x 8" NEMAenclosure with the operator controls, ground indi-cator light, and the keypad/display mounted onthe door, as illustrated in the left photo above.

Please go to the chart on page 138 to obtain thecorrect SSC-500 hydraulic control part numberand follow directions 1-8.

Please see page 139 for the information on thecams and limit switches for cycle timing.

SSC-500 Press Brake Control System Installed ona Hydraulic Press Brake

STANDARD SSC-500 HYDRAULIC PRESS BRAKE CONTROL



Fax 815-874-6144178 FAB

MODES OF OPERATION• Off• Two-hand inch• Two-hand single stroke • Foot single stroke• Sequence stop (hand/hand, hand/foot,

foot/foot, PSDI/foot)• High/low automatic speed change• One-hand or foot trip single stroke• PSDI (presence-sensing device initiation)*

*A remote station may be required to use this modeof operation.

FEATURES• Meets and exceeds OSHA 29 CFR 1910.212

and ANSI B11.3 and B11.19 • Provides two-hand control safeguarding device• NEMA 12 enclosure• Redundant/cross-checking microprocessors• Two monitored 115-V AC solid-state solenoid

relays• One user-programmable sinking input

(24 V DC) for diagnostic monitoring• 1-line x 16-character LCD with 3-key keypad

for operator interface• Bottom dwell timer (0-60 s)• Decompression timer (25-250 ms)• Selector switch for slide return

(pressure or distance)• Light curtain interface with off/on selector

switch• Selector switch for high, high/low, and low

speed (to support machines with a speedchange solenoid valve)

• The existing TOS (top-of-stroke) and BOS (bottom-of-stroke) limit switches can be reused

• 7-digit stroke and batch counters with presets• Blocking valve monitoring• PSDI (presence-sensing device initiation) single-

and double-break modes of operation

PROGRAMMINGThe SSC-500 can be quickly and easily pro-grammed. There is one 24-V DC current-sinking(NPN) programmable input provided for the user.A fault message, input logic, and stop type can beassigned to the input from the following list. Whena fault condition is detected, the machine will topstop or emergency stop, and the assigned messagewill be displayed. This feature helps when trou-bleshooting common fault conditions.

Fault Message List:Lube FaultHigh Lube FaultLow Lube FaultLow Lube LevelMain Motor Overload FaultLube Motor Overload FaultAuxiliary Motor Overload FaultGuard Open Fault


STANDARD SSC-500 HYDRAULIC PRESS BRAKE CONTROL (continued)

To determine whether the SSC-500 hydraulic con-trol can be used with the existing hydraulic system,please furnish both electrical and hydraulicschematics of the existing equipment to RockfordSystems’ engineering department for verificationwhen requesting a quote or when ordering.

SPECIAL NOTE

Rear Guard FaultLeft Guard FaultRight Guard FaultLoad Monitor FaultSafety Block FaultStock BuckleEnd of StockDie Protection Fault

Operator Interface Keypad/Display

OPERATOR INTERFACE KEYPAD/DISPLAYThe operator interface keypad/display is used toenter setup information, monitor machine opera-tion, and display messages on a 1-line by 16-char-acter LCD (liquid crystal display). As standard,this keypad is mounted in the control box door.For operator convenience, it can be installed in aremote operator station (see page 180).Programming is accessed by a keyed selectorswitch on the keypad.



SSC-500 HYDRAULIC PRESS BRAKE CONTROL (continued)

CUSTOM SSC-500 HYDRAULIC CONTROL BOXHydraulic press brake SSC-500 custom control boxes are also available to fit your particular needs.These controls include the same features and modes of operation as the standard control box as describedon pages 177 and 178.

These custom control boxes are furnished with an IEC through-the-door main power fused disconnectswitch and a hydraulic pump IEC magnetic motor starter (with push buttons). They are prewired andbuilt into a NEMA 12 oil-tight enclosure.

Operator controls and the keypad/display can be located on the front of the enclosure door. A plain-doorcontrol or subpanel can also be furnished. If a plain-door custom control or a subpanel custom controlis required, a remote operator station is needed (see next page).

NEMA-type disconnect switches and motor starters, and brand name components that may be specifiedare also available. To ensure the starter and disconnect are sized properly, please check horsepower forthe main hydraulic motor on the press brake, as well as full-load amps, and primary voltage to the pressbrake. After obtaining this information, please go to the chart on page 138 and follow directions 1-8 todetermine the proper custom control box part number.

Example of part numbering system: The press brake requires a control with a nonreversing 30-A mainmotor starter without ram adjust, a 60-A disconnect switch for 10-HP motor, voltage is 230 V, and oper-ators are on the door. The part number to order would be HPS-214-FA.

SSC-500 HYDRAULIC PRESS BRAKE REMOTE-OPERATOR STYLE CONTROL BOXRemote operator-style X, Y, and Z hydraulic press brake control boxes include the same features andmodes of operation as the standard SSC-500 press brake control boxes described on pages 177-178.However, they do not have a control transformer. These control boxes are designed in a smaller enclo-sure so they can be conveniently located on the front of the machine near the operator. The keypad/displayand all operator controls are located on the front of the enclosure door.

These controls are for applications where the machine’s existing magnetic motor starter, fused discon-nect switch, and control transformer meet the safety requirements and can be reused. If the existingcontrol transformer cannot be reused or a new one is required, please contact the factory.

CONTROL MODULE KITPart No. HPS-000-KAA control module kit allows the end user to update the hydraulic control of a press brake with minimumequipment costs. The kit is supplied without the control enclosure, panel, control transformer, controlfuse, terminal strips, wire duct, and wiring.

A set of electrical prints is supplied to show typical wiring and all mounting dimensions are provided inorder for a qualified person to install the control module kit. The minimum area required on an existingcontrol panel to install this kit is 18" H x 14" W x 6" D.

This control module kit includes the control module, control relays, shock mounts, fasteners, suppres-sors, danger labels, and electrical prints. A keypad/display kit is required unless a remote operator sta-tion is used (see below).

KEYPAD/DISPLAY KITPart No. LLD-5039—STANDARD KIT The keypad/display kit can be used with any of the plain-door control boxes or the control module kit.This kit includes the keypad/display, an off/on/program selector switch, a light curtain off/on selectorswitch, a hand, hand/foot, foot selector switch, an inch/single/sequence stop selector switch, a speedselector switch, a return selector switch, nameplates, and 25' of cable. Additional push buttons andnameplates for the motor starter, etc., can be furnished depending on the features required. Please con-sult the factory.




Fax 815-874-6144180 FAB


SSC-500 REMOTE OPERATOR STATIONS FOR CUSTOM CONTROL BOXES

INDIVIDUAL COMPONENTSIndividual components such as cycle timing devices and blocking valves, may be required to complete theSSC-500 hydraulic press brake control system. Other components may include a palm button assembly,foot switch, PSDI station, supervisory control station, etc. Please see pages 139 and 140 for the part num-bers and descriptions of these components.

PART NO. PART NO. PART NO. PART NO.FEATURES LLD-5019 LLD-5020 LLD-5021 LLD-5022

Keypad/Display X X X X

Off/Program/Run Selector Switch X X X X

Light Curtain Off/On Selector Switch X X X X

High/Low Speed Selector Switch X X X X

Pressure/Distance Return Selector Switch X X X X

Inch/Single/Sequence Stop Selector Switch X X X X

Hand, Hand/Foot, Foot Selector Switch X X X X

PSDI (Presence-Sensing Device Initiation) Operators X X

Main Motor Start and Stop Push Buttons X X

The above remote operator stations are available without the enclosure. Please consultthe factory.

REMOTE OPERATOR STATIONSFor operator convenience, a remote operator sta-tion can be furnished for use with a plain-doorstandard control box, plain-door custom controlbox, module kit, or subpanel. The remote operatorstation contains the keypad/display, programselector switch, other selector switches, and pushbuttons as required.

Remote operator stations are available in a stan-dard format or can be customized to meet anyrequirements. Select from the following remoteoperator stations.

Fix label

Part No. LLD-5019 Remote Operator

Station forHydraulic Press



Moving Lower Beam Press Brake With a Light Curtain as the Point-of-Operation Safeguard

UP-ACTING PRESS BRAKESOn these types of press brakes, the upper die andsupport is stationary and the lower beam raises (up-acting) to apply the necessary force to bend or formthe material. The moving lower beam on thesemachines creates a point-of-operation hazard as thedies close. To safeguard these machines, a controlpackage and a light curtain system can be installed.

This type of machine is hydraulically operated andis usually controlled by a mechanical foot treadleor foot switch. When the foot treadle is depressed,it operates a proportional valve that supplieshydraulic power to raise the lower beam. If thepress brake does not operate in this manner,please consult the factory.

Since this is a manually actuated hydraulicmachine, the only electrical equipment used is ahydraulic pump motor and motor control.Typically, the control consists of pump motorstart/stop push buttons and a motor indicatorlight. A disconnect switch and motor starter canalso be provided.

The control systems available include a light cur-tain interface which allows the operator to contin-ue to use the existing mechanical foot treadle. Thelight curtain and control are arranged so that if anoperator should enter the plane of light as thebeam comes up, the beam will return to its start-ing point. This is accomplished by tying in to thehydraulic pump motor control circuit. The lightcurtain can be muted from 1⁄4" or less from theworkpiece and through the balance of the working

part of the stroke. During the mute portion of thestroke, the workpiece can be bent into the plane oflight and the machine will finish its cycle.

Electrical and hydraulic schematics must be sentto our engineering department to review for controlreliability for all up-acting press brakes. After engi-neering has reviewed these schematics, a proposaldetailing the necessary equipment to update orreplace your hydraulic control will be sent to you.

CONTROL BOXThe following control boxes and components can beapplied to various up-acting press brakes such asAmada RG series and Hurco. Send electrical andhydraulic schematics to our engineering departmentin order to verify that this control will provide a lightcurtain interface to your existing machine.

MountingBrackets andSide Guards

Light Curtains

HydraulicControl

No-Go IndicatorLight

MOVING LOWER RAM (BEAM) HYDRAULIC PRESS BRAKES

Control Box Additional ComponentsPart No. Required

LRS-402

CMC-029—Limit Switch

CMT-027—Linear CamAssembly

RCD-533—Hydraulic Valve*

LRS-280 CMC-029—Limit Switch(For use with Amada RG CMT-024—Linear Cam

series with an NC9EX Assemblybackgauge only) RCD-533—Hydraulic Valve*

ORDERING INFORMATION

*If required

SURVEY FOR PRESS BRAKES NO. ____________Proposal Sequence Reference

For identification and reference, please fill in this area first.

Machine No. Manufacturer

Model No. Serial No.

Size (length of slide or bed in feet)

Type: Mechanical-Friction Clutch ■■ N ■■ YIf Y, does it have a band brake? ■■ N ■■ Y

Air Clutch ■■ N ■■ Y If Y: (circle one), 1 2 ClutchesHydraulic ■■ N ■■ Y If Y: (circle one),

Down-Acting Ram Up-Acting RamHydra-Mechanical ■■ N ■■ YAir Only ■■ N ■■ YServo Motor (Electrical) ■■ N ■■ Y

Is press brake out of service? ■■ N ■■ YIs press brake used as a mechanical or hydraulic power press?

■■ N ■■ Y If Y, use either mechanical power press partrevolution form or hydrualic press form.

(If press brake is operated from the rear, an operating station(s) andsafeguarding must be furnished.)

1) Safeguarding:

Has Safeguard Provide Type, Series, or Size

Light CurtainIf press brake has light curtain, is it at the proper safety distance?■■ N ■■ Y If we are to provide the light curtain, what is proper thesafety distance?________" (See FAB catalog for guidelines.)Are Mounting Brackets required? ■■ N ■■ CTF ■■ Y

If Y: EX-AL™ Swing-Away ■■ N ■■ Y If Y, please completeand attach SAB Measurement Form

EX-AL™ Stationary ■■ N ■■ Y If Y, please completeand attach SLCMB Measurement Form

Are Floor Stands required? ■■ N ■■ YIs No-Go Indicator required? ■■ N ■■ YIs Material Support Table required? ■■ N ■■ Y: Size

Two-Hand Control

If press brake has two-hand control, are the palm buttons at theproper safety distance? ■■ N ■■ Y If we are to provide, what is theproper safety distance?________" (See page 74 in FAB catalog)

PullbackRestraint

When providing any of the above safeguarding devices, the sides andrear of the point of operation must be safeguarded. If light curtain swing-away brackets are not furnished, are side & rear guards required?■■ N ■■ CTF ■■ YIf Y, please complete and attach measurement form.Is switch, cable, and sign for rear of press brake required? ■■ N ■■ Y

INSTALLATION ■■ N ■■ Y If Y: ■■ Standard ■■ Stripdown

When filling out this form, be sure the information is filled in for sat-isfying the basic areas of safety. Basic Areas–1. Safeguarding 4. Starter

2. Control 5. Cover3. Disconnect 6. Other Considerations

Company

City State

Surveyed By Date

1

(Customer toFurnish)

1 of 4

(Customer toFurnish)



Fax 815-874-6144182 FAB



SURVEY FOR PRESS BRAKES (continued)2. Control:A. Does press brake control have control reliability (if applica-

ble)? ■■ N ■■ YB. If we are furnishing light curtain or two-hand control, can we

interface to the existing control? ■■ N ■■ Y If Y,please provide electrical schematics and schematicsof the hydraulic system if it is a hydraulic press brake.

C. If control reliability existence is questionable, please providethe following information: ■■ Relay Logic ■■ Solid-StateIf relay logic, control relays:Mfg.__________ Part No._________ Qty.__________

D. Information about press brake:1. Hand Actuating ■■ N ■■ Y Stations (circle one): 1 2 3 42. Foot Actuating ■■ N ■■ Y Stations (circle one): 1 2 3 4

Mechanical ■■ N ■■ Y Electric ■■ N ■■ Y3. Modes: ■■ Inch ■■ Single ■■ High/Low

■■ Sequence Stop ■■ Other_________________4. Control Box Location: ■■ N/A

On Press Brake ■■ N ■■ Y Remote ■■ N ■■ Y5. Operator Controls: On Control Box ■■ N ■■ Y Remote

■■ N ■■ Y: (circle one): Box Bar Stand

E. Is Control Box to be furnished? ■■ N ■■ Y If Y,1. Solid-State: 1500 ■■ N ■■ Y, Big Foot™ ■■ N ■■ Y,

Hydraulic ■■ N ■■ Y, Relay Logic ■■ N ■■ Y2. Box: Standard ■■ N ■■ Y, Custom ■■ N ■■ Y,

Remote Operator Style (X,Y,Z) ■■ N ■■ YSpecial ■■ N ■■ Y

3. Location of Operators: (circle one):

Door Remote Loose Console Kit

4. Subpanel ■■ N ■■ Y 181⁄2"H x 181⁄2"W x 6"D Module (Kit) ■■ N ■■ Y 14"H x 12" W x 6" D

Actual space available______"H x ______"W x _____"D5. Modes Required: ■■ Inch ■■ Single ■■ High/Low

■■ Sequence ■■ PSDI ■■ Other________________6. Options Required: ■■ Hour Meter

■■ Duplex Outlet ■■ None7. Brake Monitor: ■■ N ■■ Y

F. Cycle Timing Device?: ■■ N ■■ Y Resolver (1500) ■■ N ■■ YLinear Unit ■■ N ■■ Y ■■ Other______________________

G. Timing Device Drive?: ■■ N ■■ Y ■■ Reuse ExistingStandard Sprocket Set (For 1:1 drive) ■■ N ■■ YSpecial Sprocket Set (If 1:1 drive is not available) ■■ N ■■ YChain ■■ N ■■ Y

H. Actuating Means: How many operating stations? 1 2 3 41. Hand (push buttons) ■■ N ■■ Y Hand (other) ■■ N ■■ Y_________2. E-Stop Button ■■ N ■■ Y Top-Stop Button ■■ N ■■ Y

Return Button ■■ N ■■ Y3. Foot Switch ■■ N ■■ Y Reuse Foot Pedal/Treadle ■■ N ■■ Y

Is Special Plug and Receptacle Required? ■■ N ■■ YH. Monitored Dual-Solenoid Valve? ■■ N ■■ Y: (circle one): 1⁄2" 3⁄4"J. Air Pressure Switch? ■■ N ■■ Y If Y:

Clutch/Brake? ■■ N ■■ Y Counterbalance? ■■ N ■■ YK. Counterbalance Check Valve? ■■ N ■■ Y: (circle one):

1⁄2" 3⁄4" 1" 11⁄2" 2" ■■ N/A No TankL. Filter-Regulator-Lubricator? ■■ N ■■ Y: (circle one): 1⁄2" 3⁄4"M. Air Lockout Valve? ■■ N ■■ Y: (circle one): 1⁄2" 3⁄4"N. Is Air Cylinder to be furnished? ■■ N/A

■■ N (reusing existing) ■■ Y: If yes; provide details;■■ Push ■■ Pull " Bore " Stroke Mount■■ Standard ■■ Tie Rod

O. Does press brake have automatic backgauge? ■■ N ■■ YIf Y, please provide existing interface or include it in controlschematic supplied.

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Space Requirements

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(circle one)



Fax 815-874-6144184 FAB

SURVEY FOR PRESS BRAKES (continued)

4. Starter:A. Present Location of Starter:

1. ■■ On Press Brake or ■■ Off Press Brake2. ■■ With Control

■■ Separate from Control■■ With Disconnect Only■■ Not Furnished

B. Is transformer for reducing voltage to starterrequired? ■■ N ■■ Y

C. Is magnetic starter required for main drive? ■■ N ■■ Reuse Existing

■■ Customer to Furnish If N, existing starter must have 115-V coil and a normally open auxiliary contact.■■ Y

Estimate ActualD. If Y, provide: ______ Horsepower ______

______ Full-Load Amps ____________ Voltage ______

E. Reversing ■■ N ■■ Y Nonreversing ■■ N ■■ YF. How is starter to be furnished? ■■ Separate Box

■■ Combination W/Disconnect Box ■■ In Custom BoxG. Is remote push-button station required? ■■ N ■■ Y

If Y, ■■ Main Motor ■■ Ram AdjustH. Does press brake have Variable-Speed Drive?

■■ N ■■ Y If Y:■■ Mechanical Adjust ■■ Electronic

I. Are other starters required?Ram Adjust: ■■ N ■■ Reuse Existing

■■ Customer to Furnish■■ Y

Estimate ActualIf Y, provide: ______ Horsepower ______

______ Full-Load Amps ____________ Voltage ______

Lube System ■■ N ■■ Y (Also see 6A.)Estimate Actual

If Y, provide: ______ Horsepower ____________ Full-Load Amps ____________ Voltage ______

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3. Disconnect:A. Present Location of Disconnect:

1. ■■ On Press Brake or ■■ Off Press Brake2. ■■ With Control

■■ Separate from Control■■ With Starter Only■■ Not Furnished

B. Is Electrical disconnect switch required?■■ N ■■ Reuse Existing ■■ Customer to Furnish ■■ Y If Y, furnish HP, FLA, and voltage in Section 4D.

C. How is disconnect to be furnished?■■ Separate Box ■■ Combination W/Starter Box ■■ Custom Box

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If press brake is hydraulically operated, please answer the fol-lowing: ■■ N/AA. What is Maximum Stroke of slide?______________________"B. Is Cycle Timing device required?

■■ N ■■ Y If Y, ■■ Linear Cams and Limit Switches ■■ Use Existing ■■ Other_________________

C. Is Blocking Monitored Dual Valve required?■■ N ■■ Y If Y, (circle one) 1⁄2" 3⁄4" 1" 11⁄4" 11⁄2"What is inlet flow?_____GPM What is outlet flow?_____GPMWhat is voltage of existing valves? ■■ 24 V DC ■■ 115 V

■■ 230 V ■■ 460 VNOTE: Please enclose or send photos and schematics of

hydraulic system. ■■ Enclosed ■■ Sending



SURVEY FOR PRESS BRAKES (continued)For identification and reference, please fill in this area.



5. Covers: Do any mechanical power-transmission apparatusesneed to be covered up to 7 feet above floor or plat-form? ■■ N ■■ Y If Y, what needs to be covered?

Flywheel ■■ N ■■ Y Connection Rod ■■ N ■■ YGears ■■ N ■■ Y Shaft End ■■ N ■■ YAdditional brackets Sprockets & Chain ■■ N ■■ Yrequired ■■ N ■■ Y Other____________________

6. Other Considerations:A. Does press brake have lube system? ■■ N ■■ Y

If Y, what kind of system?:Manual or mechanical pump ■■ N ■■ Y*Timer ■■ N ■■ Y*Motorized ■■ N ■■ Y (Please fill in Section 4I.)*Be sure to furnish lube schematics and/or instructionswith this form. If only control schematics are supplied, be sure the lube system is indicated.

B. Is safety block to be furnished? ■■ N ■■ Y If Y:What size is needed? ________" (Height)How many? _______ S M L (circle one)Interlock ■■ N ■■ Y Holder ■■ N ■■ Y

C. If questionable about any information furnished, please enclosephotos of entire front, sides (left and right), and rear of pressbrake. Include close-up photos of the inside of the existing control box, clutch/brake, and shaft end which would drive thetiming device. If hydraulic, enclose photos of valves, system,and existing cycle timing.■■ Sending ■■ Enclosed

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