MOVITRAC® B - Functional Safety / Manuals / 2009-05 · 8 Functional safety – MOVITRAC® B 2...
Transcript of MOVITRAC® B - Functional Safety / Manuals / 2009-05 · 8 Functional safety – MOVITRAC® B 2...
Drive Technology \ Drive Automation \ System Integration \ Services
Manual
Control Cabinet Inverter MOVITRAC® BFunctional Safety
Edition 05/2009 16811216 / EN
SEW-EURODRIVE—Driving the world
Functional safety – MOVITRAC® B 3
Content
Content1 General Information ............................................................................................ 4
1.1 About this manual ....................................................................................... 41.2 Structure of the safety notes ....................................................................... 41.3 Rights to claim under limited warranty ........................................................ 51.4 Exclusion of liability..................................................................................... 51.5 Copyright notice .......................................................................................... 51.6 Content of this publication........................................................................... 51.7 Other applicable publications...................................................................... 6
2 Safety Concept .................................................................................................... 72.1 Limitations................................................................................................... 82.2 Representation "Safety concept for MOVITRAC® B / control unit" ............. 92.3 Representation "Safety concept for MOVITRAC® B / size 0" ................... 10
3 Safety-Relevant Conditions ............................................................................. 113.1 Information on the stop categories............................................................ 113.2 Approved devices ..................................................................................... 123.3 Installation requirements........................................................................... 133.4 Requirements on external safety relays.................................................... 143.5 Startup requirements ................................................................................ 163.6 Operation requirements ............................................................................ 16
4 Connection Variants ......................................................................................... 174.1 Disconnection of single drives .................................................................. 174.2 Disconnection of group drives................................................................... 22
5 Technical Data................................................................................................... 25
Index................................................................................................................... 26
4
1 out this manualeneral Information
1 General Information1.1 About this manual
The manual is part of the product and contains important information about installation,startup, operation and service. The manual is written for everyone installing, starting upor servicing this product.
The manual must be accessible and legible. Make sure that persons responsible for thesystem and its operation, as well as persons who work independently on the unit, haveread through the manual carefully and understood it. If you are unclear about any of theinformation in this documentation, or if you require further information, contact SEW-EURODRIVE.
1.2 Structure of the safety notesThe safety notes in this manual are designed as follows:
Pictogram SIGNAL WORDType and source of danger.
Possible consequence(s) if the safety notes are disregarded.• Measure(s) to prevent the danger.
Pictogram Signal word Meaning Consequences if disregarded
Example:
General danger
Specific danger,e.g. electric shock
DANGER Imminent danger Severe or fatal injuries
WARNING Possible dangerous situation Severe or fatal injuries
CAUTION Possible dangerous situation Minor injuries
STOP Possible damage to property Damage to the drive system or its environ-ment
TIP Useful information or tip.
Simplifies the handling of the drive system.
AbG
Functional safety – MOVITRAC® B
1Rights to claim under limited warrantyGeneral Information
1.3 Rights to claim under limited warrantyA requirement of fault-free operation and fulfillment of any rights to claim under limitedwarranty is that you adhere to the information in the MOVITRAC® B documentation.Therefore, read the operating instructions before you start working with the unit.
Make sure that the documentation is available to persons responsible for the system andits operation as well as to persons who work independently on the unit. You must alsoensure that the documentation is legible.
1.4 Exclusion of liabilityYou must comply with the information contained in the MOVITRAC® B documentationto ensure safe operation of MOVITRAC® B and to achieve the specified product char-acteristics and performance requirements. SEW-EURODRIVE assumes no liability forinjury to persons or damage to equipment or property resulting from non-observance ofthe documentation. In such cases, any liability for defects is excluded.
1.5 Copyright notice© 2009 – SEW-EURODRIVE. All rights reserved.
Unauthorized duplication, modification, distribution or any other use of the whole or anypart of this documentation is strictly prohibited.
1.6 Content of this publicationThis publication contains conditions and amendments related to MOVITRAC® B insafety-oriented applications.
The system comprises a frequency inverter with asynchronous motor and safety-testedexternal disconnecting device.
Functional safety – MOVITRAC® B
56
1 ther applicable publicationseneral Information
1.7 Other applicable publicationsThis document supplements the MOVITRAC® B operating instructions and limits theapplication notes according to the following information.
It can only be used in conjunction with the following publications:
• The MOVITRAC® B operating instructions must always be observed.
For permitted connection variants, refer to chapter "Connection variants" (see page 17).
OG
Functional safety – MOVITRAC® B
2Safety Concept
2 Safety Concept
• In case of danger, any potential risk related to a machine must be eliminated asquickly as possible. Standstill with restart prevention is generally the safe conditionfor preventing dangerous movements.
• MOVITRAC® B is characterized by the optional connection of X17 to an external fail-safe, prototype tested safety relay. The safety relay disconnects all active elements(disconnection of the safety oriented 24 V power supply of the output stage control)that generate the pulse trains to the power output stage (IGBT) when a connectedcontrol device (E-STOP button with latching function) is activated.
• Disconnecting the 24 V voltage supply at connector X17 ensures that the supplyvoltages required for operating the frequency inverter and consequently forgenerating a rotating field of pulse patterns (which allow the generation of a rotatingfield) are safely interrupted, preventing automatic restart.
• Instead of separating the drive galvanically from the power supply using contactorsor switches, the disconnection procedure described here prevents the powersemiconductors in the frequency inverter from being activated, thus ensuring safedisconnection. This process disconnects the rotating field generation for therespective motor. The individual motor cannot develop any torque in this state eventhough the mains voltage is still present.
• The requirements for the safety control are clearly defined in the following sectionsand must be observed.
Using a suitable external circuit via a safety control– with approval to at least EN 954-1 category 3enables operation of the MOVITRAC® B frequency inverter with safe disconnec-tion to stop category 0 or 1 according to EN 60204-1, fail-safe protection againstrestart according to EN 1037 and fulfillment of safety category 3 to EN 954-1.
Using a suitable external circuit via a safety control– with approval for EN ISO 13849-1, performance level "d"enables operation of the MOVITRAC® B frequency inverter with safe disconnec-tion according to stop category 0 or 1 to EN 60204-1, fail-safe protection againstrestart according to EN 1037 and fulfillment of performance level "d" to EN ISO13849-1.
Functional safety – MOVITRAC® B
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8
2 mitationsfety Concept
2.1 Limitations• Important: The safety concept is only suitable for performing mechanical work
on system/machine components.
• Important: A system/machine-specific risk analysis must always be carried outby the system/machine manufacturer and taken into account for the use of theMOVITRAC® B frequency inverter.
• Danger of fatal injury: When the safety-oriented 24 V voltage supply isdisconnected, the mains supply voltage is still present at the frequencyinverter DC link.
• Danger of fatal injury: When the 24 V voltage supply is disconnected, the DClink voltage is still present at the MOVITRAC® B frequency inverter.
• Important: If work is carried out on the electrical section of the drive system,the DC link voltage must be disconnected.
LiSa
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Functional safety – MOVITRAC® B
2Representation of the "Safety concept for MOVITRAC® B / control unit"
Safety Concept
2.2 Representation of the "Safety concept for MOVITRAC® B / control unit"
[1] Safety relay (external)[2] Low-voltage switch-mode power supply[3] Safety switched-mode power supply (SNT)[4] Voltage supply for controlling the power transistors[5] Feedback to the central processing unit: Voltage supply for output stage control OK (not in safety circuit)[6] Pulse width modulated signals for output stage[7] Power section[8] Motor[9] High-voltage switch-mode power supply
Emergency stop relay(external)
approved for cat. 3acc. to EN 954-1
orPL "d" EN 13849-1
Computercore
Temperaturemeasuring
Power supply
24V externalor
24 V internal
Voltage supply for output stage control O.K.(not in the safety circuit)
Power section
PWM
Ele
ctric
is
olat
ion
Uz-
Uz+
24 V safety disconnected / brake applied (not in safety circuit)
24Vexternal
24V
GND
SNT
Safe
ty c
ircui
t
(5)
(6)
(1)
(3)
(4)
(7) (8)
Voltage supply forcontrol of the
power transistors
SV
I24
S0V
24G
ND
Safe disconnectionwith one pole or
two poles
24V
M
BinaryIN
CANRS485
BinaryOUT
AnalogIN
MOVITRAC® B
(2)
Connection plug for power section
Con
nect
ion
plug
for p
ower
sec
tion
(9)
Uz+Uz-
SNTNV
SNTHV
X17
24Vinternal
Functional safety – MOVITRAC® B
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2epresentation of the "Safety concept for MOVITRAC® B / size 0"fety Concept
2.3 Representation of the "Safety concept for MOVITRAC® B / size 0"
For units of size 0 in design MC07B...-S0, an external 24 V supply must always beconnected as the control electronics can only be powered in this way.
[1] Safety relay (external) [2] Low-voltage switch-mode power supply[3] Safety switched-mode power supply (SNT)[4] Voltage supply for controlling the power transistors[5] Feedback to the central processing unit: Voltage supply for output stage control OK (not in safety circuit)[6] Pulse width modulated signals for output stage[7] Power section[8] Motor
Emergency stop relay(external)
approved for cat. 3acc. to EN 954-1
orPL "d" EN 13849-1
Computercore
Temperaturemeasuring
SNTNV
Netz
24V external
Voltage supply for output stage control O.K.(not in the safety circuit)
Power section
PWM
Ele
ctric
is
olat
ion
Uz-
Uz+
24 V safety disconnected / brake applied (not in safety circuit)
24Vexternal
24V
GND
SNTSa
fety
circ
uit
(5)
(6)
(1)
(3)
(4)
(7) (8)
Voltage supply forcontrol of the
power transistors
SV
I24
S0V
24G
ND
Safe disconnectionwith one pole or
two poles
24V
M
BinaryIN
CANRS485
BinaryOUT
AnalogIN
MOVITRAC® B (2)X17
RSa
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Functional safety – MOVITRAC® B
3Information on the stop categoriesSafety-Relevant Conditions
3 Safety-Relevant ConditionsThe following conditions are mandatory for the installation and operation ofMOVITRAC® B in applications with safe disconnection of the drive in accordance withcategory 0 or 1 of EN 60204-1 and fail-safe protection against restart according toEN 1037, and conformance with safety category 3 of EN 954-1 or performance level "d"of EN ISO 13849-1. The conditions are divided into the following sections:
• Approved devices
• Installation requirements
• Requirements for external safety relays
• Startup requirements
• Operation requirements
3.1 Information on the stop categories• Stop category 0 means that the safety 24 V voltage supply can be disconnected
independent of the setpoints.
• Observe the following procedure for stop category 1:
– Decelerate the drive using an appropriate brake ramp specified by the setpoint.
– Disconnect the safety-oriented 24 V voltage supply.
Functional safety – MOVITRAC® B
1112
3 proved devicesfety-Relevant Conditions
3.2 Approved devicesThe following frequency inverters are permitted for applications with safe disconnectionaccording to stop category 0 or 1 of EN 60204-1, fail-safe protection against restartaccording to EN 1037 and compliance with safety category 3 according to EN 954-1 orperformance level "d" according to EN ISO 13489-1.
3.2.1 MOVITRAC® B for AC 3 × 380 – 500 V / 200 – 240 V supply voltage
Power [kW] 380 – 500 V
Size Type
0.55 0S MC07B0005-5A3-4-S0
0.75 0S MC07B0008-5A3-4-S0
1.1 0S MC07B0011-5A3-4-S0
1.5 0S MC07B0015-5A3-4-S0
2.2 0L MC07B0022-5A3-4-S0
3.0 0L MC07B0030-5A3-4-S0
4.0 0L MC07B0040-5A3-4-S0
5.5 2S MC07B0055-5A3-4-00
7.5 2S MC07B0075-5A3-4-00
11 2 MC07B0110-5A3-4-00
15 3 MC07B0150-503-4-00
22 3 MC07B0220-503-4-00
30 3 MC07B0300-503-4-00
37 4 MC07B0370-503-4-00
45 4 MC07B0450-503-4-00
55 5 MC07B0550-503-4-00
75 5 MC07B0750-503-4-00
Power [kW] 200 – 240 V
Size Type
0.55 0S MC07B0005-2A3-4-S0
0.75 0S MC07B0008-2A3-4-S0
1.1 0L MC07B0011-2A3-4-S0
1.5 0L MC07B0015-2A3-4-S0
2.2 0L MC07B0022-2A3-4-S0
3.7 1 MC07B0037-2A3-4-00
5.5 2 MC07B0055-2A3-4-00
7.5 2 MC07B0075-2A3-4-00
11 3 MC07B0110-203-4-00
15 3 MC07B0150-203-4-00
22 4 MC07B0220-203-4-00
30 4 MC07B0300-203-4-00
ApSa
Functional safety – MOVITRAC® B
3Installation requirementsSafety-Relevant Conditions
3.2.2 Hazard caused by coasting drive
Note that if the drive does not have a mechanical brake, or if the brake is defective, thedrive may coast to a halt.
Note: If coasting to a halt results in application-dependent hazards, takeadditional protective measures (e.g. movable covers with closure), which coverthe hazardeous area until persons are no longer in danger.The additional protective covers must be designed and integrated in such a way thatthey meet the safety category required for the machine.
After activating the stop command, access to the machine must remain blocked until thedrive has reached standstill, or the access time has to be determined to ensure that anadequate safety distance is maintained.
3.3 Installation requirementsNote the following instructions for applications of MOVITRAC® B with safe disconnec-tion of the drive according to stop category 0 or 1 according to EN 60204-1 and fail-safeprotection against restart according to EN 954-1 safety category 3 or performance level"d" according to EN ISO 13849-1.
• The line between the safety control system (or the safety-oriented tripping device)and MOVITRAC® B terminal X17 is designated as the safety-oriented 24 V voltagesupply.
• Power lines and the safety-oriented 24 V supply voltage must be installed in separatecable ducts.
• The safety-oriented 24 V supply voltage must be routed according to EMC guidelinesand as follows:
– Outside an electrical installation space: Shielded cables must be routedpermanently (fixed) and protected against external damage, or other equivalentmeasures.
– Individual conductors can be routed inside an electrical installation space.
Observe the respective regulations governing the application.
• It must be ensured that parasitic voltages cannot be generated in the safety-oriented24 V supply voltage.
• The total cable length between the safety control system (e.g. safety relay) andMOVITRAC® B is limited to a maximum length of 100 m for EMC reasons.
• The switching capacity of the safety relay and the maximum permissible voltage dropon the 24 V supply cable must be observed during disconnection of group drives.
• Only use terminal connections (terminal blocks) that meet EN 60204-1 and preventshort-circuits.
• Observe the notes in the "MOVITRAC® B" operating instructions on EMC compliantcabling. It is essential that you apply the shielding at both ends on the housing.
• Only use power supplies with safe isolation (SELV/PELV) according to VDE010.According to EN 60950-1, the voltage between the outputs or between any outputand a ground part must not exceed DC 60 V voltage for longer than 0.2 s after onlyone fault. The maximum DC voltage must be 120 V.
Functional safety – MOVITRAC® B
1314
3 equirements on external safety relaysfety-Relevant Conditions
• You must remove the jumpers at X17:1 to X17:4 (see following figure) for use inapplications with safe disconnection of the drive according to stop category 0 or 1 inaccordance with EN 60204-1 and fail-safe protection against restart according toEN 954-1 safety category 3 or performance level "d" according to EN ISO 13849-1.
• The shielded lines of the safety-oriented 24 V voltage supply (terminal X17) must beclamped under the signaling electronics shield clamp.
• You must observe the technical data of MOVITRAC® B (see MOVITRAC® Boperating instructions).
Removing jumpers
3.4 Requirements on external safety relays• If the requirements of the standard EN 954-1 are to be met, at least one approval for
safety category 3 according to EN 954-1 must be available.
• If the requirements of the standard EN ISO 13849-1 are to be met, at least oneapproval for performance level "d" according to EN ISO 13849-1 must be available.
• If the DC 24 V voltage supply is safely disconnected at the positive pole only, no testpulses must be applied to this pole in disconnected condition.
• Bipolar disconnection of the DC 24 V supply is permitted.
• The values specified for the safety relays must be adhered to when designing thecircuit.
SV
I
SO
V
24
V
GN
D X17
RSa
Functional safety – MOVITRAC® B
3Requirements on external safety relaysSafety-Relevant Conditions
• The switching capacity of the safety relays must correspond at least to the maximumpermitted limited output current of the DC 24 V voltage supply. Observe themanufacturer's instructions for the safety relays concerning the permittedcontact loads and fusing that may be required for the safety contacts. Unlessspecified otherwise, the contacts must be protected with 0.6 times the nominalvalue of the maximum contact rating specified by the manufacturer.
• The controller must be designed and connected in such a way that resetting thecontrol device itself will not lead to a restart. A restart may only be carried out afteran additional reset of the controller.
3.4.1 "Safety relay" sample circuitThe following figure shows the basic connection of an external safety relay (accordingto the before mentioned requirements) to MOVITRAC® B.
The information in the respective manufacturer's data sheets must be observed forconnection.
1-pole disconnection of the 24 V supply voltage:
Safety-oriented 24 V supply of the emergency stop relay (e.g. PNOZ....)
Emergency stop relay with certification for at least category 3 according to EN954-1 or performance level "d" according to EN ISO 13849
Fuses in accordance with the manufacturer specifications of the emergency stop relay
24 V
GND
24 V voltage supply
Approved EMERGENCY STOP actuator element
Reset button
Functional safety – MOVITRAC® B
1516
3 artup requirementsfety-Relevant Conditions
3.5 Startup requirements• Startup must be documented and the functionality of the safety functions must be
demonstrated.
• Startup checks of the disconnecting device and the correct wiring must be performedand documented for MOVITRAC® B with safe disconnection of the drive accordingto stop category 0 or 1 of EN 60204-1, fail-safe protection against restart accordingto EN 1037 and compliance with safety category 3 according to EN 954-1 orperformance level "d" according to EN ISO 13849-1.
• At startup, the safety-related 24 V control voltage must be included in the functionaltest.
3.6 Operation requirements• Operation is only allowed within the limits specified in the data sheets. This applies
both to the external safety relay as well as MOVITRAC® B.
• The safety functions must be checked at regular intervals to ensure properfunctioning. The period of time between the tests should be specified in accordancewith the risk analysis.
StSa
Functional safety – MOVITRAC® B
4Disconnection of single drivesConnection Variants
4 Connection VariantsRefer to the publication "Safe Disconnection for MOVITRAC® B - Applications" forexamples of approved connection variants of units listed in the section "Approved Units"for safe disconnection of the drive according to stop category 0 or 1 of EN 60204-1 andfail-safe protection against restart according to EN 1037 and fulfillment of the safetycategory according to EN 954-1 or performance level "d" of EN ISO 13849-1. Thepublication "Safe Disconnection for MOVITRAC® B - Applications" is constantly beingsupplemented by possible applications. The publication includes checklists, which offeradditional assistance in project planning and installation as well as operatingMOVITRAC® B drives in safety-oriented applications. It is essential that you comply withthe publications listed in the section "Safety and warning instructions" for all theconnection variants listed in the publication "Safe Disconnection for MOVITRAC® B -Applications".
4.1 Disconnection of single drives4.1.1 Requirements
The requirements of the manufacturers of safety relays (such as protecting the outputcontacts against welding) or other safety components must be strictly observed. Inaddition, the basic requirements described in the manual "Safe Disconnection forMOVITRAC® B - Conditions" apply for cable routing.
For reasons of EMC, the length of the cable between connection X17 onMOVITRAC® B and the safety components (e.g. safety relay) is limited to a maximumof 100 m. Other instructions by the manufacturer on the use of safety relays for specificapplications must also be observed.
Functional safety – MOVITRAC® B
1718
4 isconnection of single drivesonnection Variants
4.1.2 Internal 24 V supply, stop category 0
* external DC 24 V voltage supply. Required for BG0S and BG0L!
Mains connection
®
+24V
Res
et
STARTSTOP
digital input
digital output
PLC
X12
X17
X2
X1 '0'=Ctrl. inhibit'1'=Ctrl. enable'0'=Halt'1'=START CW'0'=Stop'1'=Enable
GND
VO24
SVI24
24VIO
1
2
4
8
L3L2L1
1 2 3
MO
VTR
AC
B
M
4
U V W
5 6
SOV24
Feed
back
EM
ER
GE
NC
Y S
TOP
GND
Safety relay
EMEGENCYSTOP
Safety circuit
} no factory setting
9 GND
GND
+24 V output
Reference + 24 V safe stop input
+24 V safe stop input
* DC24 V
+
–
DC
Functional safety – MOVITRAC® B
4Disconnection of single drivesConnection Variants
4.1.3 External 24 V supply, stop category 0
* external DC 24 V supply. Required for BG0S and BG0L!
Mains connection
®
+24V
Res
et
STARTHALT
digital input
digital output
PLC
X12
X17
X2
X1 '0'=Ctrl. inhibit'1'=Ctrl. enable'0'=Halt'1'=START CW'0'=Stop'1'=Enable
1
2
4
L3L2L1
1 2 3
MO
VITR
AC
B
M
4
U V W
5 6
Feed
back
EM
ER
GE
NC
Y S
TOP
GND
Safety relay
EMERGENCYSTOP
Safety circuit
} nofactory setting
GND
VO24
SVI24
24VIO
4
8
SOV24
9 GND
GND
+24 V output
Reference + 24 V safe stop input
+24 V safe stop input
* DC24 V
+
–
Functional safety – MOVITRAC® B
1920
4 isconnection of single drivesonnection Variants
4.1.4 Internal 24 V supply, stop category 1
* external DC 24 V supply. Required for BG0S and BG0L![1] Safety relay with adjustable time delay t1.
Observe the following procedure for stop category 1:
• Decelerate the drive using an appropriate brake ramp specified by the setpoint.
• Disconnect the safety-oriented 24 V voltage supply.
Mains connection
®
+24V
Res
et
STARTHALT
digital input
digital output
PLC
X12
X17
X2
X1 '0'=Ctrl. inhibit'1'=Ctrl. enable'0'=Halt'1'=START SW'0'=Stop'1'=Enable
1
2
4
L3L2L1
1 2 3
MO
VITR
AC
B
M
4
U V W
5 6
Feed
back
EM
ER
GE
NC
Y S
TOP
GND
Safety relay
EMERGENCYSTOP
Safety circuit
t1
[1]
} nofactory setting
GND
VO24
SVI24
24VIO
4
8
SOV24
9 GND
GND
+24 V output
Reference + 24 V safe stop input
+24 V safe stop input
* DC24 V
+
–
DC
Functional safety – MOVITRAC® B
4Disconnection of single drivesConnection Variants
4.1.5 External 24 V supply, stop category 1
* external DC 24 V supply. Required for BG0S and BG0L![1] Safety relay with adjustable time delay t1.
Observe the following procedure for stop category 1:
• Decelerate the drive using an appropriate brake ramp specified by the setpoint.
• Disconnect the safety-oriented 24 V voltage supply.
Mains connection
®
+24V
Res
et
STARTHALT
digital input
digital output
PLC
X12
X17
X2
X1 '0'=Ctrl. inhibit'1'=Ctrl. enable'0'=Halt'1'=START SW'0'=Stop'1'=Enable
1
2
4
L3L2L1
1 2 3
MO
VITR
AC
B
M
4
U V W
5 6
Feed
back
EM
ER
GE
NC
Y S
TOP
GND
Safety relay
EMERGENCYSTOP
Safety circuit
t1
[1]
} no factory setting
GND
VO24
SVI24
24VIO
4
8
SOV24
9 GND
GND
+24 V output
Reference + 24 V safe stop input
+24 V safe stop input
* DC24 V
+
–
Functional safety – MOVITRAC® B
2122
4 isconnection of group drivesonnection Variants
4.2 Disconnection of group drives4.2.1 Requirements
For group drives, the 24 V supply of several MOVITRAC® B units can be made availableby a single safety relay. The maximum possible number of units (n units) results fromthe maximum permitted contact load of the safety relay and the maximum permittedvoltage drop of the DC supply for MOVITRAC® B units.
Other requirements of the safety relay manufacturer (such as protecting the outputcontacts against welding) must be strictly observed. In addition, the basic requirementsdescribed in the manual "Safe Disconnection for MOVITRAC® B - Conditions" apply forcable routing.
For reasons of EMC, the length of the cable between connection X17 (MOVITRAC® B)and the safety components (e.g. safety relay) is limited to a maximum of 100 m.
Other instructions by the manufacturer on the safety relay used in the specificapplication must also be observed.
Determining the maximum number of MOVITRAC® B drives for disconnection of group drives
The number (n units) of MOVITRAC® B units that can be connected to a group drive withsafe disconnection is limited by the following points:
1. Switching capacity of the safety relay.
A fuse must be connected in front of the safety contacts according to thespecifications of the safety relay manufacturer to prevent the contacts from stickingor welding.
The project planner is responsible for ensuring that the specifications on theswitching capacity according to EN 60947-4-1, 02/1 and EN 60947-5-1, 11/97 as wellas on contact fuse protection given in the operating instructions of the safety relaymanufacturer are strictly observed.
2. Maximum permitted voltage drop in the 24 V power supply cable.
Values concerning cable lengths and permitted voltage drops must be observedduring project planning for group drives.
3. Maximum cable cross section of 1x1.5 mm2 or 2x0.75 mm2.
A calculation based on the technical data of MOVITRAC® B must be performedseparately for each group drive application.
DC
Pi
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Hz
n
Functional safety – MOVITRAC® B
4Disconnection of group drivesConnection Variants
4.2.2 External 24 V supply, stop category 0
* external DC 24 V supply. Required for BG0S and BG0L!
X12
X17
X2
X1 '0'=Ctrl. inhibit'1'=Ctrl. enable'0'=Halt'1'=START CW
1
2
4
®M
OVI
TRAC
B
'0'=Stop'1'=Enable
} nofactory setting
GND
VO24
SVI24
SOV24
24VIO8
9 GND
GND
+24 V output
Reference + 24 V safe stop input
+24 V safe stop input
M
4
U V W
5 6
Mains connection
STARTHALT
digital input
digital output
PLCX12
X17
X2
X1 '0'=Ctrl. inhibit'1'=Ctrl. enable'0'=Halt'1'=START CW
1
2
4
L3L2L1
1 2 3
®M
OVI
TRAC
B
'0'=Stop'1'=Enable
Rese
t
Safety circuit
Feed
back
EM
ERG
ENCY
STO
P
GND
Safety relay
EMERGENCYSTOP
+24V
} no factory setting
GND
VO24
SVI24
SOV24
24VIO8
9 GND
GND
+24 V output
Reference + 24 V safe stop input
+24 V safe stop input
* DC24 V
+
–
* DC24 V
+
–
Functional safety – MOVITRAC® B
2324
4 isconnection of group drivesonnection Variants
4.2.3 External 24 V supply, stop category 1
* external DC 24 V supply. Required for BG0S and BG0L![1] Safety relay with adjustable time delay t1.
Observe the following procedure for stop category 1:
• Decelerate the drive using an appropriate brake ramp specified by the setpoint.
• Disconnect the safety-oriented 24 V voltage supply.
t1
[1]
X12
X17
X2
X1 '0'=Ctrl. inhibit'1'=Ctrl. enable'0'=Halt'1'=START CW
1
2
4
®M
OVI
TRAC
B
'0'=Stop'1'=Enable
} no factory setting
GND
VO24
SVI24
SOV24
24VIO8
9 GND
GND
+24 V output
Reference + 24 V safe stop input
+24 V safe stop input
M
4
U V W
5 6
Mains connection
STARTHALT
digital input
digital output
PLCX12
X17
X2
X1 '0'=Ctrl. inhibit'1'=Ctrl. enable'0'=Halt'1'=START CW
1
2
4
L3L2L1
1 2 3
®M
OVI
TRAC
B
'0'=Stop'1'=Enable
Rese
t
Safety circuit
Feed
back
EM
ERG
ENCY
STO
P
GND
Safety relay
EMERGENCYSTOP
+24V
} no factory setting
GND
VO24
SVI24
SOV24
24VIO8
9 GND
GND
+24 V output
Reference + 24 V safe stop input
+24 V safe stop input
* DC24 V
+
–
* DC24 V
+
–
DC
Functional safety – MOVITRAC® B
5Technical Data
5 Technical Data
X17 safety input, terminal 4
Voltage / cross-section / duration Min. Typ. Max. Unit
Safety-oriented 24 V supply voltage 19.2 24 30 DC V
Power consumption (size / capacity) BG0S / BG0L / 27 µFBG1 / 270 µF
BG 2/2S / 270 µFBG3 / 270 µFBG4 / 270 µFBG5 / 270 µF
356
7.58
10
W
Cable cross-section of safety-oriented 24 V supply voltage 0.75 1.5 mm2
Time between disconnection of the safety-oriented 24 V supply voltage at MOVITRAC® B until the disconnection of the pulse pattern at output stage tswitch-off.
Size 0Sizes 1 to 5
20100
ms
Functional safety – MOVITRAC® B
Pi
fkVA
Hz
n
25
26 Functional safety – MOVITRAC® B
Index
Index
AApproved devices ..................................................12
MOVIDRIVE®MDX60B/61B (380 ... 500 VAC)..12
CConnection variants ...............................................17Content of this publication........................................5Copyright..................................................................5
DDisconnection of group drives................................22
Connection variant "external 24 V supply, stop category 1" .................................................24Connection variant "external 24 V supply, stop cat. 0" .........................................................23Determining the maximum number of MDX60B/61B drives...........................................22
Disconnection of single drives................................17Connection variant "external 24 V supply, stop category 0" .................................................19Connection variant "external 24 V supply, stop category 1" .................................................21Connection variant "internal 24 V supply, stop category 0" .................................................18Connection variant "internal 24 V supply, stop category 1" .................................................20Requirements.....................................................17
Documentation, applicable.......................................6Drive coasting (information) ...................................13
EExclusion of liability ..................................................5External safety relays.............................................14
GGroup disconnection
Requirements.....................................................22
IInstallation
Notes on routing control lines ............................13Permitted terminal connections..........................13Requirements.....................................................13
NNotes, general..........................................................4
OOperation, requirements ........................................16
PPublications, applicable ...........................................6
RRequirements
External safety relays ........................................14Installation..........................................................13Operation ...........................................................16Startup ...............................................................16
Rights to claim under limited warranty.....................5
SSafety concept .........................................................7
Limitations............................................................8Schematic representation ..............................9, 10
Safety notesStructure ..............................................................4
Safety relays, external ...........................................14Requirements ....................................................14Sample circuit ....................................................15Switching capacity .............................................15
Safety-relevant conditions .....................................11Startup, requirements ............................................16Stop categories, information ..................................11Structure of the safety notes....................................4
UUse of the manual....................................................4
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