Vacon NXS 3 Speed Positioning ASFIFF15 Application

user's manual nx frequency converters

3-speed positioning application

asfiff15

2 vacon General

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Vacon 3-Speed Positioning (Application ASFIFF15) INDEX

1. GENERAL ......................................................................................................................................... 3 1.1 I/O expander boards in positioning .................................................................................... 4 1.2 Positioning sequence.......................................................................................................... 5

2. CONTROL I/O.................................................................................................................................... 6 2.1 Programmable I/Os with default settings ......................................................................... 7

3. COMMISSIONING ............................................................................................................................... 8 3.1 Commissioning parameter settings .................................................................................. 8 3.2 Calibration......................................................................................................................... 10 3.3 Safety area ........................................................................................................................ 13 3.4 Teaching............................................................................................................................ 14 3.5 Sheet cutter function ........................................................................................................ 14 3.6 Fieldbus control ................................................................................................................ 15

4. 3-SPEED POSITIONING PARAMETER LISTS ..................................................................................... 16 4.1 Monitoring values (Control keypad: menu M1)................................................................ 16 4.2 Basic parameters (Control keypad: Menu M2 G2.1) ................................................... 17 4.3 Input signals (Control keypad: Menu M2 G2.2.1-G2.2.6) ............................................ 19 4.4 Output signals (Control keypad: Menu M2 G2.3)......................................................... 21 4.5 Drive control parameters (Control keypad: Menu M2 G2.4)....................................... 22 4.6 Prohibit frequency parameters (Control keypad: Menu M2 G2.5).............................. 22 4.7 Motor control parameters (Control keypad: Menu M2 G2.6)...................................... 23 4.8 Protections (Control keypad: Menu M2 G2.7).............................................................. 24 4.9 Autorestart parameters (Control keypad: Menu M2 G2.8) ......................................... 25 4.10 Positioning (Control keypad: Menu M2 G2.10) ............................................................ 26 4.11 Positions (Control keypad: Menu M2 G2.11) ............................................................... 29 4.12 Mechanical brake control (Control keypad: Menu M2 G2.12.1).................................. 30 4.13 Mechanical brake control (Control keypad: Menu M2 G2.12.2).................................. 30 4.14 Keypad control (Control keypad: Menu M3)..................................................................... 30 4.15 System menu (Control keypad: M6) ................................................................................. 31 4.16 Expander boards (Control keypad: Menu M7) ................................................................. 31

5. DESCRIPTION OF PARAMETERS......................................................................................................... 32 5.1 BASIC PARAMETERS ........................................................................................................ 32 5.2 OUTPUT SIGNALS............................................................................................................. 42 5.3 DRIVE CONTROL ............................................................................................................... 46 5.4 PROHIBIT FREQUENCIES................................................................................................. 48 5.5 MOTOR CONTROL ............................................................................................................. 49 5.6 PROTECTIONS................................................................................................................... 52 5.7 AUTO RESTART PARAMETERS ........................................................................................ 60 5.8 POSITIONING PARAMETERS............................................................................................ 62 5.9 POSITIONS PARAMETERS................................................................................................ 68 5.10 MECHANICAL BRAKE CONTROL ..................................................................................... 69 5.11 KEYPAD CONTROL PARAMETERS ................................................................................... 76

6. CONTROL SIGNAL LOGIC IN 3-SPEED POSITIONING APPLICATION ......................................................... 77 7. FAULTS AND FAULT CODES............................................................................................................... 78

General vacon 3

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3-Speed Positioning 1. General Frequency converter works as a positioning controller with the help of incremental encoder and target reference. Encoder board OPT-A4/A5 as an option is necessary. Encoder could be installed on a motor shaft or on a conveyors axis behind the gear (NXS). Encoder information is used both positioning control and Closed Loop motor control (NXP). If Closed Loop is in use, then the encoder must be on the motor shaft. Digital inputs and outputs are programmable. Additional functions:

Programmable Start/Stop and Reverse signal logic Reference scaling One frequency limit supervision Second ramps and S-shape ramp programming Programmable start and stop functions DC-brake at start and stop One prohibit frequency area Programmable U/f curve and switching frequency Autorestart Motor thermal and stall protection: Programmable action; off, warning, fault

Target reference could be given with three different ways; 1) Positioning is based on 32 programmable targets, which are saved to parameter group 2.11.

Active target could be select with the combination of five digital inputs. (Optional I/O-expander board, OPT-B1.)

2) Analog target reference; current or voltage input. Using this method, notice the influences of

analog electronics disturbances (1%). 3) Target reference from fieldbus. Expander board should be selected from the OPT-C-serie

depending on the fieldbus type. Positioning accuracy depends on the units in use and the positioning length.

4 vacon General

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1.1 I/O expander boards in positioning (eg. configurations)

Function mode, For example.

SLOT A B C D E

32 target references, selection with digital inputs.

OPT-A1* OPT-A2* OPT-A4/A5 OPT-B1 --

Target reference from fieldbus

OPT-A1* OPT-A2* OPT-A4/A5 -- OPT-C2/ OPT-C3/ OPT-C7

Sheet cutter, 1-2 ref.

Selection with standard boards digital inputs, using

TTF- logic

OPT-A1* OPT-A2* OPT-A4/A5 -- --

Table 1-1. I/O-expander boards in different function modes, using default slots

*) OPT-A1 and OPT-A2 normally as standard.

SLOT I/O- Signals

Board type A B C D E

DI DO AI mA/V /+V

AO mA/V

RO NO/NC +10V Ref.

+24V/ext+2

4V

DI/Enco-der (10-

24V) Out+15/2

4V

DI/Encoder (RS422)

Out+5/ 15V

OPT-A1 X 6 1 2 1 1 2

OPT-A2 X 2

OPT-A4 X 3+1 OPT-A5 X 3+1 OPT-B1 X 6 1 OPT-C2 X Modbus, SPI- bus OPT-C3 X Profibus DP, SPI- bus OPT-C7 X DeviceNet, SPI- bus

Table 1-2. Optional slots and I/O- signals. (X=default)

We are developing new boards all the time. If you cant find the suitable board of this collection, check the board development status from our salesmen.

General vacon 5


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1.2 Positioning sequence

Figure 1- 1 Positioning sequence

Positioning uses three different speed. When approaching the target, speed is decelerated with three different phases. Speeds, hysteresis and ramps should be chosen by tests. In addition, the application has so called automatic ramp scaling function (P2.10.21), which makes the positioning quality better (See page 67). There are also two different speed groups, for example positioning with or without the load. Maximum positioning speed is adjustable. This function is selected with parameter P2.10.24.1. (See page 69)

Speed- HI1P2.10.10

Speed [Hz]

Trip [ANY]

Speed- HI2P2.10.14

Selection DINPos. speed groups 1/2

Speed MED1P2.10.11

Speed MED2P2.10.15

Speed CREEP1P2.10.12

Speed CREEP2P2.10.16

Med. speedP2.10.7

Creep speedP2.10.8

STOP HYSTERESP2.10.9

6 vacon Control I/O

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Jumper block X3 :CM A and CM B grounding

CMB connected to GNDCMA connected to GND

CMB isolated from GNDCMA isolated from GND

CMB and CMAinternally connected together,isolated from GND

= Factory default

2. Control I/O

OPT-A1 Terminal Signal Description

1 +10Vref Reference output Voltage for potentiometer, etc. 2 AI1+ Analogue input, voltage range

010V DC Voltage input frequency reference

3 AI1- I/O Ground Ground for reference and controls 4 AI2+ 5 AI2-

Analogue input, current range 020mA

Current input frequency reference

6 +24V Control voltage output Voltage for switches, etc. max 0.1 A 7 GND I/O ground Ground for reference and controls 8 DIN1 Start forward, positioning

(programmable) Contact closed = start forward

9 DIN2 Start reverse, positioning (programmable)

Contact closed = start reverse

10 DIN3 Preset speed (Manual speed) (programmable)

Contact closed = activated

11 CMA

Common for DIN 1DIN 3 Connect to GND or +24V

12 +24V Control voltage output Voltage for switches (see #6) 13 GND I/O ground Ground for reference and controls 14 DIN4 Positioning speed groups

(programmable) Contact open = Speed group 1 Contact closed = Speed group 2

15 DIN5 Positioning mode (programmable)

Contact closed = activated

16 DIN6 Calibration, teaching Teaching, when calibration is done 17 CMB Common for DIN4DIN6 Connect to GND or +24V 18 AO1+ 19 AO1-

Output frequency Analogue output

Programmable Range 020 mA/RL, max. 500

20 DO1 Digital output READY

Programmable Open collector, I50mA, U48 VDC

OPT-A2 21 RO1 22 RO1 23 RO1

Relay output 1 CALIBRATION OK

Programmable

24 RO2 25 RO2 26 RO2

Relay output 2 EXTERNAL BRAKE CTRL

Programmable

Table 2-1. Positioning application, default I/O configuration.

Note: See jumper selections below. More information in the products User's Manual.

READY

RUN

mA

Control I/O vacon 7


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2.1 Programmable I/Os with default settings

OPT-A1 Parameter Default Function Start forward, positioning DIA1

DIA2 P2.2.1 Fixed

Fixed Start reverse, positioning DIA3 P2.2.7.10 A.3 Preset speed DIA4 P2.2.7.11 A.4 Positioning speed 1/2 DIA5 P2.2.7.12 A.5 Positioning mode DIA6 P2.2.7.13 A.6 Calibration, teaching DO1 P2.3.6 1 Ready

OPT-A2 RO1 P2.3.7 17 Calibration OK RO2 P2.3.8 24 Ext. brake control

OPT-B1 DIB1 P2.2.7.14 D.1 Target selection, bit 0;LSB DIB2 P2.2.7.15 D.2 Target selection, bit 1 DIB3 P2.2.7.16 D.3 Target selection, bit 2 DIB4 P2.2.7.17 D.4 Target selection, bit 3 DIB5 P2.2.7.18 D.5 Target selection, bit 4;MSB

Programmable I/O-function explained in details on page 37-39. In chapter 3. Commissioning digital inputs are having default settings.

8 vacon Commissioning

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3. Commissioning Download the application with NCLoad, use replace all function. Select the panel language on page S6.1. Available languages are English and Finnish. Option board parameters are in menu M7. (See the corresponding manual) 3.1 Commissioning parameter settings Motor name-plate parameters in group G2.1 BASIC PARAMETERS. P2.10.1; Target reference selection. Target reference could be given in spite of control

place P3.1 settings. If you want to control frequency converter eg. via fieldbus (Start, stop, speed ref, positioning CW and so on), it must be selected with parameter P3.1 as an active control place.

0= Fixed positions 0-31, combination of 5 digital inputs. 1= Analog target reference; voltage or current input (P2.10.2) 2= Target reference from fieldbus

Fixed positions 0-31; Storage location in parameter group G2.11 selected with the combination of 5 digital inputs.

Analog target reference; Target reference could be given eg. potentiometer, voltage or current signal. Reference is adjustable during the positioning also. Notice analog electronics disturbances, which could effect to positioning accuracy (1%).

Target reference from fieldbus; Target reference is written to processdata field 1, type UINT. Calibration reference is written to processdata field 4, type UINT. Values is internally limited like position parameters in group G2.11. See also chapter 3.6 Fieldbus control.

P2.10.4; Total trip (Max. 60000). Unit type: ANY. Total length of the positioning area. Use the

same units in all trip parameters. (P2.10.4, P2.10.7, P2.10.8, P2.10.9 and all parameters in group G2.11)

P2.10.5; User defined encoder axis rounds per total trip.

Max. 65535. Decimals to this value is defined by parameter P2.10.6. Note! This parameter affects essentially to positioning accuracy.

Commissioning vacon 9


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Total rounds calculation based on a carefully measurement of the conveyors axis diameter:

DiameterAxisTripTotalRoundsTotal

*

=

Or total rounds calculation based on a trip measurement corresponding one

conveyors axis revolution:

revolutiontheofLenghtTripTotalRoundsTotal

1 =

P2.10.6; Decimals. (Max. 4) Total rounds (P2.10.5) decimal numbers. Example: If calculated total rounds are 5.24943, choose maximum value 4, because 52494


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3.2 Calibration Trip counter must be calibrate always, when frequency converter is switched on, driving outside the positioning area (=Fault) or calibration is reset by parameter P2.10.19 (value=1). Safety area is activated, when calibration is done. (See chapter 3.3) Calibration could execute either manually or automatically. The meaning of calibration is to set the known position to trip counter. Calibration position is defined with parameter P2.11.3 or if using fieldbus, the calibration position is given to processdata input field 4. Calibration function mode is selected by parameter P2.10.18 AutoCalibration: Off/On; Off= Manual calibration, see chapters 3.2.1 and 3.2.2 On= Automatic calibration, see chapter 3.2.3 and 3.2.4 NOTE! When doing calibration, all digital inputs must be set to zero! In sheet cutter mode, you dont have to make calibration. Also safety area function is disabled! 3.2.1 Manual calibration using I/O-control

Manual calibration is executed in manual mode, DIA5=0. Conveyor is manually driven to position corresponding to the parameter P2.11.3, then stop and confirm the calibration with DIA6. Now the trip caunters value is same as parameter P2.11.3 and safety limits will be activated. You could facilitate the manual calibration using preset speed defined with parameter P2.1.14, activated with DIA3. 3.2.2 Manual calibration using fieldbus control

Manual calibration is executed in manual mode, processdata in 2, bit 1=0. Conveyor is driven to position corresponding to the calibration position written to processdata in 4. Then stop and confirm the calibration with processdata in 2, bit 0=1. Now the trip counters value is same as value in processdata in 4 and safety limits will be activated. Note that the active target (V1.17) is not updated until the next start-command. 3.2.3 Automatic calibration using I/O-control

Automatic calibration is executed in positioning mode, DIA5=1. Automatic calibration is activated, when the function is selected with P2.10.18. and START-command is given. This way the conveyor moves pursuant a sequence shown in Figure 3-1. This funtion uses positioning speed group 2 and differential proximity switch connected to digital input. 3.2.4 Automatic calibration using fieldbus control

1) Set parameter P2.10.18 AutoCalibration = On 2) Set the positioning mode on; processdata in 2, bit 1=1 3) Give start-command 4) Now the conveyor moves pursuant a sequence shown in Figure 3-1.



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Note: When the proximity switch is connected to PLC, then the status of the proximty switch must be forwarded by the PLC to the frequency converter process data in 2, PDIN2, Bit0 (Calibration) 5) When the sequency is ready, (motor is running on zero frequency) give stop-command. 6) Now the trip counters value is same as value in P2.11.3 and safety limits will be activated. Three steps of automatic calibration: Step 1) When START-command is activated, the conveyor moves on speed, which is defined

with parameter P2.10.15. In this case, direction of rotation is always reverse. If the conveyor is already in proximity switch target area, this step is by-passed. Proximity switch is connected to digital input DIA6 or the status of the switch is forwarded by the PLC to the drive to processdata in 2, bit 0.

Step 2) Proximty switch recognizes the car, DIA6=0 1 (PDIN2, Bit 0=1). Change of

direction, and speed is decreased to creeping speed reference defined by parameter P2.10.16.

Step 3) The car moves away from proximity switch target area, DIB6=1 0, (PDIN2, Bit

0=0) and the conveyor stops. Now the calibration is executed automatically, if using I/O-control. On fieldbus control, the drive remains run-state, until the stop-command is given. After that, the calibration must be confirmed using processdata in 2, bit 3 (Rising edge). Now the trip counters value is same as parameter P2.11.3 and safety limits will activate.


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Figure 3- 1Steps of automatic caliration

NOTE! Proximity switch must install so, that the car dont fit totally to the safety area, outside the proximity switch target area!

Safety-area

P2.11.1 P2.11.2

P2.11.2

DIA6

1)

2)

P2.11.1 P2.11.2

3)

DIA6

Reverse

Change of direction

STOP&Calibration

DIA6

Safety-area

Safety-area

Safety-area

Safety-area



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3.3 Safety area Intention is to control manual drive near both mechanical ends. End limits are activated, when calibration is done. Limits are set by parameters P2.11.1and P2.11.2. When driving manually over the end limits, alarm End limits occurs and frequency is limited to value set by parameter P2.10.13. If driving still goes on, until car goes outside the positioning area, fault New Calib.occurs and calibration have to do again. If driving is stopped in safety area, starting to same direction is not possible. In that case, new start have to do to opposite direction. Calibration and position settings to safety area is prohibited!!! This function is disabled in sheet cutter mode.

Figure 3- 2 Principal of safety area function

POSITIONING AREA

End limitP2.11.1

End limitP2.11.2

End limit speedP2.10.13

End limit speedP2.10.13

Fault:"New Calib." Fault:"New Calib."

Alarm:"End limits" Alarm:"End limits"

Positions 0-31


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3.4 Teaching Teaching is possible after the calibration. Teaching mode could be activated with parameter P2.10.17. Conveyor is driven to the wanted position and receiptioned by digital input DIA 6. Position is stored to place in group G2.11, which is selected with the combination of digital inputs. 3.5 Sheet cutter function The purpose is to drive a proportinal sequence. Target reference is given by digital inputs, analog reference or from fieldbus. Total trip and corresponding total rounds could be set using one positioning sequence or multiply of them. (See Figure 3-3) Trip counter is reset on every START-command. Function is activated in positioning mode (DIB5=1) with the parameter P2.10.3. Sheet cutter positioning is possible to both directions. Calibration and safety area functions are disabled.

Figure 3- 3 Function sequence

Speed/Hz

TimeSTART-->Reset tripcounter

START-->Reset tripcounter

Example 1: Total trip-->Total roundsExample 2: Total trip-->Total rounds

Example 2

Example 1

vacon 15


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3.6 Fieldbus control Fieldbus reference is selected by P2.10.1 (value=2). PPO- type selection eg. PP0 2 or PPO 5, because processdata fields are in use. Control place is selected differentially by P3.1, whereby the function mode must be ProfiDrive (CW and SW remains ProfiDrive- profile. See also profibus manual). Target reference could be given from fieldbus in spite of control place P3.1 settings. 3.6.1 Application processdata.

Master slave Field Signal Type Description

Processdata 1 Target reference UINT 0-60000. Internally limited.(Same as parameters in group G2.11) Updating always on START-command.

Processdata 2 Positioning control word INT Digital input simulation from fieldbus: B0=Calibration, teaching. B1=Positioning mode OFF/ON B2=Positioning speed groups 1/2 B3=Not used B4=Not used B5=Reset Calibration B6=Calibration prohibited

Processdata 3 Max. speed adjusting INT Max. speed adjusting from fieldbus. Scaling limits P2.10.24.2 P2.10.24.5.

Table 3-1. Processdata in.

NOTE! When using positioning CW, control place must be on fieldbus (P3.1). Slave master

Field Signal Type Description ID Processdata 3 Positioning status word. INT B0= Calibration OK,

B1= Position reached B2= At positioning speed max. B3= Programmable digital input. B4= Programmable digital input. B5= Programmable digital input. B6= Programmable digital input. B7= Programmable digital input. B8= Positioning mode OFF/ON B9= Calibration input B10= Not used B11= Warning Low End B12= Warning High End B13= Out of Area B14= RunEnable Low End B15= RunEnable High End

Table 3-2. Processdata out.

16 vacon 3-Speed Positioning Parameter lists

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4. 3-Speed Positioning Parameter lists On the next pages you will find the lists of parameters within the respective parameter groups. The parameter descriptions are given on pages 32-77. Column explanations: Code = Location indication on the keypad; Shows the operator the present parameter

number Parameter = Name of parameter Min = Minimum value of parameter Max = Maximum value of parameter Unit = Unit of parameter value; Given if available Default = Value preset by factory Cust = Customers own setting ID = ID number of the parameter (used with PC tools) = In parameter row: Use TTF method to program these parameters. = On parameter code: Parameter value can only be changed after the frequency

converter has been stopped. 4.1 Monitoring values (Control keypad: menu M1) The monitoring values are the actual values of parameters and signals as well as statuses and measurements. Monitoring values cannot be edited. See the products Users manual for more information.

Code Parameter Unit ID Description V1.1 Output frequency Hz 1 Output frequency to motor V1.2 Frequencyreference Hz 25 Frequency reference to motor control V1.3 Motor speed rpm 2 Motor speed in rpm V1.4 Motor current A 3 V1.5 Motor torque % 4 In % of the nominal motor torque V1.6 Motor power % 5 Motor shaft power V1.7 Motor voltage V 6 V1.8 DC link voltage V 7 V1.9 Unit temperature C 8 Heatsink temperature

V1.10 Voltage input V 13 AI1 V1.11 Current input mA 14 AI2 V1.12 DIN1, DIN2, DIN3 15 Digital input statuses V1.13 DIN4, DIN5, DIN6 16 Digital input statuses V1.14 DO1, RO1, RO2 17 Digital and relay output statuses V1.15 Analogue Iout mA 26 AO1 V1.16 Actual position -- 1551 Actual position in real units V1.17 Target position -- 1553 Target position in real units V1.18 Total rounds r 1580 Enc. rounds V1.19 Decimal rounds Dec 1581 1 full round=65535

V1.20 FB Positioning Control Word 1700

V1.21 FB Positioning Status Word 1701

V1.22 Status Word 1702 V1.23 Current Unfilteres 1113 V1.24 Torque Unfiltered 1081 V1.25 FreqRampOut 1129

V1.26 DC Voltage Unfiltered 1082

Table 4- 1. Monitoring values

3-Speed Positioning Parameter lists vacon 17


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V1.20 Fieldbus positioning control word

Bit Description Value = 0 Value = 1 0 No meaning FB Calibration input 1 Manual mode Positioning mode 2 Positioning speed group 1 Positioning speed group 2 3 Not used Not used 4 Not used Not used 5 No meaning FB Reset calibration 6 Calibration permitted Calibration prohibited 7 Not used Not used Not used Not used 15 Not used Not used Table 4-1. Fieldbus positioning control word

V1.21 Fielbus positioning status word

Bit Description Value = 0 Value = 1 0 Not calibrated Calibration OK 1 Not in position reference Position reached 2 Positioning low speed Positioning Max Speed 3 Programmable digital input. P2.10.22.1 4 Programmable digital input. P2.10.22.2 5 Programmable digital input. P2.10.22.3 6 Programmable digital input. P2.10.22.4 7 Programmable digital input. P2.10.22.5 8 Manual mode Positioning mode 9 Calibration input FALSE Calibration input TRUE 10 Not Used Not Used 11 No Warning Warning Low End 12 No Warning Warning High End 13 In side of area Out of area fault 14 Run Disable Low End Run Enable Low End 15 Run Disable High End Run Enable High End Table 4-2. Fieldbus positioning status word

V1.22 Status Word

NOTE: Content of internal status word may vary with different versions

Bit Description Value = 0 Value = 1 0 Run Disabled Run Enabled 1 No Warning Warning 2 FC Stopped FC Running 3 No Fault Fault active 4 No Run Request Run Request 5 Calibration permitted Calibration prohibited 6 Brake closed Brake opened Not used Not used 15 Not used Not used Table 4-3. Status word


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4.2 Basic parameters (Control keypad: Menu M2 G2.1)

Code Parameter Min Max Unit Default Cust ID Note P2.1.1 Min frequency 0,00 Par. 2.1.2 Hz 0,00 101

P2.1.2 Max frequency Par. 2.1.1 320,00 Hz 50,00 102

NOTE: If fmax > than the motor synchronous speed, check suitability for motor and drive system

P2.1.3 Acceleration time 1 0,1 3000,0 s 3,0 103 P2.1.4 Deceleration time 1 0,1 3000,0 s 3,0 104

P2.1.5 Current limit 0,1 x IL 2,5 x IL A 1,5 x IL 107

NOTE: This applies for frequency converters up to FR7. For greater sizes, consult the factory.

P2.1.6 Nominal voltage of

the motor 180 690 V

NX2: 230VNX5: 400VNX6: 690V

110

P2.1.7 Nominal frequency of the motor

30,00 320,00 Hz 50,00 111 Check the rating plate of the motor

P2.1.8 Nominal speed of

the motor 300 20 000 rpm 1440 112

The default applies for a 4-pole motor and a nominal size frequency converter.

P2.1.9 Nominal current of the motor

1 x IL 2,5 x IL A IL 113 Check the rating plate of the motor

2.1.10 Motor cos 0,30 1,00 0,85 120 Check the rating plate of the motor

2.1.11 I/O reference 0 3 0 117

0=AI1 1=AI2 2=Keypad 3=Fieldbus

2.1.12 Keypad control

reference 0 3 2 121


2.1.13 Fieldbus control

reference 0 3 3 122


2.1.14 Preset speed 0,00 Par. 2.1.2 Hz 10,00 105 Speed preset by operator

Table 4-4. Basic parameters G2.1



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4.3 Input signals (Control keypad: Menu M2 G2.2.1-G2.2.6)

Code Parameter Min Max Unit Default Cust ID Note DIN1 DIN2

P2.2.1 Start/Stop logic 0 6 0

300

0123456

Start fwd Start/Stop Start/Stop Start pulse Fwd* Start*/Stop Start*/Stop

Start rvs Rvs/Fwd Run enableStop pulse Rvs* Rvs/Fwd Run enable

P2.2.2 Current reference offset

0 1 1 302 0=No offset 1=420 mA

P2.2.3 Reference scaling

minimum value 0,00 par. 2.2.5 Hz 0,00 303

Selects the frequency that corresponds to the min. reference signal 0,00 = No scaling

P2.2.4 Reference scaling maximum value 0,00 320,00 Hz 0,00 304

Selects the frequency that corresponds to the max. reference signal 0,00 = No scaling

P2.2.5 Reference inversion 0 1 0 305 0 = Not inverted 1 = Inverted

P2.2.6 Reference filter time 0,00 10,00 s 0,10 306 0 = No filtering

Table 4-5. Input signals, G2.2.1-G2.2.6


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4.3.1 Digital inputs (Control keypad: Menu M2 G2.2.7)

Code Parameter Min Max Unit Init. Cust. ID

P2.2.7.1 Ext. fault Closing cont.

0.1 E.10 0.1 1554

P2.2.7.2 Ext. fault Opening cont.

0.1 E.10 0.1 1555

P2.2.7.3 Run enable 0.1 E.10 0.1 1556

P2.2.7.4 Acc./Dec Time selection

0.1 E.10 0.1 1557

P2.2.7.5 Force control place to I/O

0.1 E.10 0.1 1558

P2.2.7.6 Force control place to keypad

0.1 E.10 0.1 1559

P2.2.7.7 Force control place to fieldbus

0.1 E.10 0.1 1560

P2.2.7.8 Reverse (if par. 2.2.1=3) 0.1 E.10 0.1 1561

P2.2.7.9 Fault reset 0.1 E.10 0.1 1565

P2.2.7.10 Manual speed (Preset speed)

0.1 E.10 A.3 1562

P2.2.7.11 Positioning speed group sel.

0.1 E.10 A.4 1563

P2.2.7.12 Positioning mode 0.1 E.10 A.5 1564

P2.2.7.13 Calibration, teaching

0.1 E.10 A.6 1566

P2.2.7.14 Select position, Bit 0, LSB

0.1 E.10 D.1 1567

P2.2.7.15 Select position, Bit 1

0.1 E.10 D.2 1568


0.1 E.10 D.3 1569


0.1 E.10 D.4 1570

P2.2.7.18 Select position, Bit 4, MSB

0.1 E.10 D.5 1571

P2.2.7.19 Ext.Brake enable 0.1 E.10 0.2 1605

P2.2.7.20 Run Enable Low End

0.1 E.10 0.2 1609

P2.2.7.21 Run Enable High End

0.1 E.10 0.2 1608

P2.2.7.22 Reset Calibration 0.1 E.10 0.1 1611

P2.2.7.23 Calibration Negative

0.1 E.10 0.2 1612

P2.2.7.24 Calibration Prohibited

0.1 E.10 0.1 1613

P2.2.7.25 Reset Encoder 0.1 E.10 0.1 1614

Table 4-6. Digital inputs, G2.2.7.1-G2.2.7.19

See details on page 37.



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4.4 Output signals (Control keypad: Menu M2 G2.3)

Code Parameter Min Max Unit Default Cust ID Note

P2.3.1 Analogue output function

0 8 1 307

0=Not used 1=Output freq. (0fmax) 2=Freq. reference (0fmax) 3=Motor speed (0Motor

nominal speed) 4=Output current (0

InMotor) 5=Motor torque (0TnMotor) 6=Motor power (0PnMotor) 7=Motor voltage (0--

UnMotor) 8=DC-link volt (01000V) 9=Target ref. Scaled to

current signal

P2.3.2 Analogue output filter time

0,00 10,00 s 1,00 308

P2.3.3 Analogue output inversion

0 1 0 309 0 = Not inverted 1 = Inverted

P2.3.4 Analogue output minimum

0 1 0 310 0 = 0 mA 1 = 4 mA

P2.3.5 Analogue output scale

10 1000 % 100 311

P2.3.6 Digital output 1

function 0 24 1 312

0=Not used 1=Ready 2=Run 3=Fault 4=Fault inverted 5=FC overheat warning 6=Ext. fault or warning 7=Ref. fault or warning 8=Warning 9=Reversed 10=Preset speed 11=At speed 12=Mot. regulator active 13=OP freq. limit superv. 14=Control place: IO 15=Therm. fault/warning 16=FB digin1 17=Calibration OK 18=Position reached 19=At high speed 20=At medium speed 21=At creep speed 22=Outside positioning area 23=Over the end limit 24=Mech.brake open

P2.3.7 Relay output 1 function

0 24 17 313 As parameter 2.3.6

P2.3.8 Relay output 2 function

0 24 24 314 As parameter 2.3.6

P2.3.9 Output frequency

limit 1 supervision 0 2 0 315

0=No limit 1=Low limit supervision 2=High limit supervision

P2.3.10 Output frequency

limit 1; Supervised value

0,00 320,00 Hz 0,00 316


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P2.3.11 Analogue output 2 signal selection

0 0.1 471 TTF programming method used. See PFC application.

P2.3.12 Analogue output 2 function

0 8 4 472 As parameter 2.3.1

P2.3.13 Analogue output 2 filter time

0,00 10,00 s 1,00 473

P2.3.14 Analogue output 2 inversion

0 1 0 474 0=Not inverted 1=Inverted

P2.3.15 Analogue output 2 minimum

0 1 0 475 0=0 mA 1=4 mA

P2.3.16 Analogue output 2 scaling

10 1000 % 1000 476

Table 4-7. Output signals, G2.3

4.5 Drive control parameters (Control keypad: Menu M2 G2.4)


P2.4.1 Ramp 1 shape 0,0 10,0 s 0,0 500 0 = Linear >0 = S-curve ramp time

P2.4.2 Ramp 2 shape 0,0 10,0 s 0,0 501 0 = Linear >0 = S-curve ramp time

P2.4.3 Acceleration time 2 0,1 3000,0 s 10,0 502 P2.4.4 Deceleration time 2 0,1 3000,0 s 10,0 503

P2.4.5 Brake chopper 0 3 0 504

0=Disabled 1=Used when running 2=External brake chopper 3=Used when

stopped/running

P2.4.6 Start function 0 1 1 505 0=Ramp 1=Flying start

P2.4.7 Stop function 0 3 1 506

0=Coasting 1=Ramp 2=Ramp+Run enable coast3=Coast+Run enable ramp

P2.4.8 Flux brake 0 1 0 520 0 = Off 1 = On

P2.4.9 Flux braking current 0,0 Varies A 0,0 519

Table 4-8. Drive control parameters, G2.4

4.6 Prohibit frequency parameters (Control keypad: Menu M2 G2.5)


P2.5.1 Prohibit frequency range 1 low limit

0,00 par. 2.5.2 Hz 0,00 509

P2.5.2 Prohibit frequency range 1 high limit

0,00 320,00 Hz 0,0 510

P2.5.3 Prohibit acc./dec. ramp

0,1 10,0 1,0 518

Table 4-9. Prohibit frequency parameters, G2.5



4

4.7 Motor control parameters (Control keypad: Menu M2 G2.6)


P2.6.1 Motor control mode 0 6 0 600

0=Frequency control 1=Speed control 2=Torque control 3=Closed Loop, speed ctrl

P2.6.2 U/f optimisation 0 1 0 109 0=Not used 1=Automatic torque boost

P2.6.3 U/f ratio selection 0 3 0 108

0=Linear 1=Squared 2=Programmable 3=Linear with flux optim.

P2.6.4 Field weakening point

30,00 320,00 Hz 50,00 602

P2.6.5 Voltage at field

weakening point 10,00 200,00 % 100,00 603

n% x Unmot Parameter max. value = par. 2.6.7

P2.6.6 U/f curve midpoint frequency

0,00 par. P2.6.4

Hz 50,00 604

P2.6.7 U/f curve midpoint voltage

0,00 100,00 % 100,00 605 n% x Unmot

P2.6.8 Output voltage at zero frequency

0,00 40,00 % 0,00 606 n% x Unmot

P2.6.9 Switching frequency 1,0 16,0 kHz Varies 601 Depends on kW

P2.6.10 Overvoltage controller

0 1 1 607 0=Not used 1=Used

P2.6.11 Undervoltage controller

0 1 1 608 0=Not used 1=Used

Table 4-10. Motor control parameters, G2.6


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4.8 Protections (Control keypad: Menu M2 G2.7)


P2.7.1 Response to reference fault

0 5 0 700

0=No response 1=Warning 2=Warning+Old Freq. 3=Wrng+PresetFreq 2.7.2 4=Fault,stop acc. to 2.4.7 5=Fault,stop by coasting

P2.7.2 Reference fault frequency

0,00 Par. 2.1.2 Hz 0,00 728

P2.7.3 Response to externalfault

0 3 2 701

P2.7.4 Input phase supervision

0 3 0 730

P2.7.5 Response to undervoltage fault

1 3 2 727

P2.7.6 Output phase supervision

0 3 2 702

P2.7.7 Earth fault protection

0 3 2 703

P2.7.8 Thermal protection of the motor

0 3 2 704

0=No response 1=Warning 2=Fault,stop acc. to 2.4.7 3=Fault,stop by coasting

P2.7.9 Motor ambient temperature factor

100,0 100,0 % 0,0 705

P2.7.10 Motor cooling factor at zero speed

0,0 150,0 % 40,0 706

P2.7.11 Motor thermal time constant

1 200 min 10 707

P2.7.12 Motor duty cycle 0 100 % 100 708

P2.7.13 Stall protection 0 3 0 709


P2.7.14 Stall current 0,1 6000,0 A 10,0 710 P2.7.15 Stall time limit 1,00 120,00 s 15,00 711 P2.7.16 Stall frequency limit 1,0 Par. 2.1.2 Hz 25,0 712

P2.7.17 Underload protection 0 3 0 713


P2.7.18 Underload curve at nominal frequency

10 150 % 50 714

P2.7.19 Underload curve at zero frequency

5,0 150,0 % 10,0 715

P2.7.20 Underload

protection time limit

2 600 s 20 716

P2.7.21 Response to

thermistor fault 0 3 0 732


P2.7.22 Response to fieldbus fault

0 3 0 733 See P2.7.21

P2.7.23 Response to slot fault

0 3 0 734 See P2.7.21

Table 4-11. Protections



4

4.9 Autorestart parameters (Control keypad: Menu M2 G2.8)

Code Parameter Min Max Unit Default Cust ID Note P2.8.1 Wait time 0,10 10,00 s 0,50 717 P2.8.2 Trial time 0,00 60,00 s 30,00 718

P2.8.3 Start function 0 2 1 719 0=Ramp 1=Flying start 2=According to par. 2.4.6

P2.8.4 Number of tries afterundervoltage trip

0 10 0 720

P2.8.5 Number of tries afterovervoltage trip

0 10 0 721

P2.8.6 Number of tries afterovercurrent trip

0 3 0 722

P2.8.7 Number of tries afterreference trip

0 10 0 723

P2.8.8 Number of tries aftermotor temperature

fault trip 0 10 0 726

P2.8.9 Number of tries afterexternal fault trip

0 10 0 725

Table 4-12. Autorestart parameters, G2.8


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4.10 Positioning (Control keypad: Menu M2 G2.10)

Code Parameter Min Max Unit Init. Cust ID Note

P2.10.1 Reference selection 0 2 0 1548 0=Fixed positions 1=Analog reference 2=Fieldbus reference

P2.10.2 Analog reference 0 1 0 1549 0=AI1 1=AI2

P2.10.3 Sheet cutter mode 0 1 0 1578 0=Off 1=On

P2.10.4 Total trip 0 60000 X 15000 1500

P2.10.5 Total rounds 0 65535 954.9 1501 Users defined accurate rounds per total trip

P2.10.6 Desimals 0 4 1 1502 Affects to P2.10.5

P2.10.7 Med. Speed starting point

P2.10.8 P2.10.4-P2.11.1

X 200 1506

P2.10.8 Creep speed starting point

P2.10.9 P2.10.7 X 100 1505

P2.10.9 Stop hysteresis 0 P2.10.8 X 10 1504

P2.10.10 Positioning speed max. 1

P2.10.11 P2.1.2 Hz 20.00 1509

P2.10.11 Positioning speed med. 1

P2.10.12 P2.10.10 Hz 10.00 1508

P2.10.12 Positioning speed creep 1

0.00 P2.10.11 Hz 5.00 1507

P2.10.13 End limit speed 0,00 P2.1.2 Hz 5.00 1552

P2.10.14 Positioning speed max. 2

P2.10.15 P2.1.2 Hz 15.00 1512

P2.10.15 Positioning speed med. 2

P2.10.16 P2.10.14 Hz 7.50 1511

P2.10.16 Positioning speed creep 2

0.00 P2.10.15 Hz 3.75 1510

P2.10.17 Teaching 0 1 0 1513 0=Off 1=On

P2.10.18 Automatic calibration

0 1 0 1546 0=Off 1=On

P2.10.19 Calibration Reset 0 1 0 1586 0=Norm. calibration 1=Reset calibration

P2.10.20 Save position 0 1 0 1606 Save position on power off/on situation

P2.10.21 Automatic ramp scaling

0 1 1 1572 0=Off 1=On

Table 4-13. Positioning parameters, G2.10



4

4.10.1 Fieldbus; Programmable status word (Control keypad: Menu M2 G2.10.22)

4.10.1.1 Processdata out, field 3.

Koodi Parametri Min Max Yks. Oletus Oma ID Huomautuksia

P2.10.22.1 Statusword,

3.BIT 0.1 E.10 0.1 1573 Programmable digital input for the third bit of the statusword.


4.BIT 0.1 E.10 0.1 1574 Programmable digital input for the fourth bit of the statusword.


5.BIT 0.1 E.10 0.1 1575 Programmable digital input for the fifth bit of the statusword.


6.BIT 0.1 E.10 0.1 1576 Programmable digital input for the sixth bit of the statusword.


7.BIT 0.1 E.10 0.1 1577 Programmable digital input for the seventh bit of the statusword.

Table 4-14. Programmable digital inputs for own status word, G2.10.22.

Bit structure of programmable statusword: Bit Description Value = 0 Value = 1 0 Not calibrated Calibration OK 1 Not in position reference Position reached 2 Positioning low speed Positioning Max Speed 3 Programmable digital input. P2.10.22.1 4 Programmable digital input. P2.10.22.2 5 Programmable digital input. P2.10.22.3 6 Programmable digital input. P2.10.22.4 7 Programmable digital input. P2.10.22.5 8 Manual mode Positioning mode 9 Calibration input FALSE Calibration input TRUE 10 Not Used Not Used 11 No Warning Warning Low End 12 No Warning Warning High End 13 In side of area Out of area fault 14 Run Disable Low End Run Enable Low End 15 Run Disable High End Run Enable High End

4.10.2 Multimonitor (Control keypad: Menu M2 G2.10.23)

Into the multimonitor menu you could select three monitoring values at the same time. Values could be selected from the menu M1, in addition frequency reference from panel, R3.2. See details on page 67.


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4.10.3 Maximum positioning speed adjusting (Control keypad: Menu M2 G2.10.24)

Koodi Parametri Min Max Yks. Oletus ID Huomautuksia

P2.10.24.1 Max. speed adj. Reference sel.

0 3 0 1579

0= Not used 1= AI1, analog input 1 2= AI2, analog input 2 3= Fieldbus reference

P2.10.24.2 Max. speed 1 scaling MIN

0.00 P2.10.23.3 % 100.00 1582 Positioning speed group 1 scaling minimum value

P2.10.24.3 Max.speed 1 scaling MAX

P2.10.24.2 200.00 % 100.00 1584 Positioning speed group 1 scaling maximum value

P2.10.24.4 Max. speed 2 scaling MIN

0.00 P2.10.23.5 % 100.00 1583 Positioning speed group 2 scaling minimum value

P2.10.24.5 Max. speed 2 scaling MAX P2.10.24.4 200.00 % 100.00 1585

Positioning speed group 2 scaling maximum value

Table 4-15. Maximum positioning speed adjusting



4

Positions (Control keypad: Menu M2 G2.11)

Code Parameter Min Max Unit Default Cust. ID Description

P2.11.1 Safety area low limit

0 P2.10.4 X 200 1550

P2.11.2 Safety area high limit

0 P2.10.4 200 1607

Bit4

Bit 3

Bit 2

Bit 1

Bit 0

P2.11.3 Calibration

position P2.11.1

(Total trip) --

(End limit) =

High end limit

X P2.11.1 1545 0 0 0 0 0

P2.11.4 Position 1 P2.11.1 = previous X P2.11.1 1514 0 0 0 0 1 P2.11.5 Position 2 P2.11.1 = previous X P2.11.1 1515 0 0 0 1 0 P2.11.6 Position 3 P2.11.1 = previous X P2.11.1 1516 0 0 0 1 1 P2.11.7 Position 4 P2.11.1 = previous X P2.11.1 1517 0 0 1 0 0 P2.11.8 Position 5 P2.11.1 = previous X P2.11.1 1518 0 0 1 0 1 P2.11.9 Position 6 P2.11.1 = previous X P2.11.1 1519 0 0 1 1 0

P2.11.10 Position 7 P2.11.1 = previous X P2.11.1 1520 0 0 1 1 1 P2.11.11 Position 8 P2.11.1 = previous X P2.11.1 1521 0 1 0 0 0 P2.11.12 Position 9 P2.11.1 = previous X P2.11.1 1522 0 1 0 0 1 P2.11.13 Position 10 P2.11.1 = previous X P2.11.1 1523 0 1 0 1 0 P2.11.14 Position 11 P2.11.1 = previous X P2.11.1 1524 0 1 0 1 1 P2.11.15 Position12 P2.11.1 = previous X P2.11.1 1525 0 1 1 0 0 P2.11.16 Position 13 P2.11.1 = previous X P2.11.1 1526 0 1 1 0 1 P2.11.17 Position 14 P2.11.1 = previous X P2.11.1 1527 0 1 1 1 0 P2.11.18 Position 15 P2.11.1 = previous X P2.11.1 1528 0 1 1 1 1 P2.11.19 Position 16 P2.11.1 = previous X P2.11.1 1529 1 0 0 0 0 P2.11.20 Position 17 P2.11.1 = previous X P2.11.1 1530 1 0 0 0 1 P2.11.21 Position 18 P2.11.1 = previous X P2.11.1 1531 1 0 0 1 0 P2.11.22 Position 19 P2.11.1 = previous X P2.11.1 1532 1 0 0 1 1 P2.11.23 Position 20 P2.11.1 = previous X P2.11.1 1533 1 0 1 0 0 P2.11.24 Position 21 P2.11.1 = previous X P2.11.1 1534 1 0 1 0 1 P2.11.25 Position 22 P2.11.1 = previous X P2.11.1 1535 1 0 1 1 0 P2.11.26 Position 23 P2.11.1 = previous X P2.11.1 1536 1 0 1 1 1 P2.11.27 Position 24 P2.11.1 = previous X P2.11.1 1537 1 1 0 0 0 P2.11.28 Position 25 P2.11.1 = previous X P2.11.1 1538 1 1 0 0 1 P2.11.29 Position 26 P2.11.1 = previous X P2.11.1 1539 1 1 0 1 0 P2.11.30 Position 27 P2.11.1 = previous X P2.11.1 1540 1 1 0 1 1 P2.11.31 Position 28 P2.11.1 = previous X P2.11.1 1541 1 1 1 0 0 P2.11.32 Position 29 P2.11.1 = previous X P2.11.1 1542 1 1 1 0 1 P2.11.33 Position 30 P2.11.1 = previous X P2.11.1 1543 1 1 1 1 0 P2.11.34 Position 31 P2.11.1 = previous X P2.11.1 1544 1 1 1 1 1

Table 4-16. Positions, G2.11 and boolean truth table.


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4.11 Mechanical brake control (Control keypad: Menu M2 G2.12.1) Open loop parameters

Code Parameter Min Max Unit Default Cust. ID Description P2.12.1.1 Current limit 0,00 In A 0,00 1587 P2.12.1.2 Torque limit 0,0 100 % 0,0 1588 P2.12.1.3 Freq. Limit open 0 Fn Hz 0,00 1589 P2.12.1.4 Brake open delay 0,00 10,00 s 0,10 1590 P2.12.1.5 Freq. Limit close 0,01 Fn Hz 1,00 1591 P2.12.1.6 Brake close delay 0,00 10,00 s 0,00 1592

P2.12.1.7 Brake react. Time

0,00 10,00 s 0,05 1594

P2.12.1.8 DC-brake current 0,15 x In 1,5 x In A Varies 507

P2.12.1.9 Start DC-brake time

0,000 60,000 s 0,000 516 0 = DC-brake not in use

P2.12.1.11 Stop DC-brake time

0,000 60,000 s 0,000 508 0 = DC-brake not in use

P2.12.1.12 Stop DC-brake frequency

0,10 10,00 Hz 1,50 515

Table 4-17. Open loop parameters

4.12 Mechanical brake control (Control keypad: Menu M2 G2.12.2) Closed Loop parameters

Code Parameter Min Max Unit Default Cust. ID Description P2.12.2.1 Current limit 0 In A 0,00 1596 P2.12.2.2 Torque limit 0 100 % 0 1597 P2.12.2.3 Freq. Limit open 0 Fn Hz 0,00 1598 P2.12.2.4 Brake open delay 0,00 10,00 s 0,10 1599 P2.12.2.5 Freq limit close 0,01 Fn Hz 0,01 1600 P2.12.2.6 Brake close delay 0,00 10,00 s 0,00 1601 P2.12.2.7 Start 0Hz time 0 2,000 s 0,100 615 P2.12.2.8 Stop 0Hz time 0 2,000 s 0,100 616

Table 4-18. Mechanical brake control

4.13 Keypad control (Control keypad: Menu M3) The parameters for the selection of control place and direction on the keypad are listed below. See the Keypad control menu in the products User's Manual.


P3.1 Control place 1 3 1 125 0 = I/O terminal 1 = Keypad 2 = Fieldbus

R3.2 Keypad reference Par. 2.1.1

Par. 2.1.2 Hz

P3.3 Direction (on keypad) 0 1 0 123 0 = Forward 1 = Reverse

R3.4 Stop button 0 1 1 114

0=Limited function of Stop button

1=Stop button always enabled

R3.5 Pulses calibrated

STOP 0 1 1 1610

Table 4-19. Keypad control parametrs, M3



4

4.14 System menu (Control keypad: M6) For parameters and functions related to the general use of the frequency converter, such as application and language selection, customised parameter sets or information about the hardware and software, see the products User's Manual. 4.15 Expander boards (Control keypad: Menu M7) The M7 menu shows the expander and option boards attached to the control board and board-related information. For more information, see the products User's Manual.

32 vacon Description of parameters

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5. Description of parameters

5.1 BASIC PARAMETERS 2.1.1, 2.1.2 Minimum/maximum frequency

Defines the frequency limits of the frequency converter. The maximum value for parameters 2.1.1 and 2.1.2 is 320 Hz. The software will automatically check the values of parameters 2.1.14, 2.3.10 and 2.7.2

2.1.3, 2.1.4 Acceleration time 1, deceleration time 1

These limits correspond to the time required for the output frequency to accelerate from the zero frequency to the set maximum frequency (par. 2.1.2).

2.1.5 Current limit

This parameter determines the maximum motor current from the frequency converter. The current limit is 1.5 times the rated current (IL) by default.

2.1.6 Nominal voltage of the motor

Find this value Un on the rating plate of the motor. This parameter sets the voltage at the field weakening point (parameter 2.6.5) to 100% x Unmotor.

2.1.7 Nominal frequency of the motor

Find this value fn on the rating plate of the motor. This parameter sets the field weakening point (parameter 2.6.4) to the same value.

2.1.8 Nominal speed of the motor

Find this value nn on the rating plate of the motor.

2.1.9 Nominal current of the motor

Find this value In on the rating plate of the motor.

2.1.10 Motor cos phi

Find this value cos on the rating plate of the motor.

2.1.11 I/O frequency reference selection

Defines which frequency reference source is selected when controlled from the I/O control place. Default value is 0. 0 = Analogue voltage reference from terminals 23, e.g. potentiometer 1 = Analogue current reference from terminals 45, e.g. transducer 2 = Keypad reference from the Reference Page (Group M3) 3 = Reference from the fieldbus



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2.1.12 Keypad frequency reference selection

Defines which frequency reference source is selected when controlled from the keypad. Default value is 2. 0 = Analogue voltage reference from terminals 23, e.g. potentiometer 1 = Analogue current reference from terminals 45, e.g. transducer 2 = Keypad reference from the Reference Page (Group M3) 3 = Reference from the Fieldbus

2.1.13 Fieldbus frequency reference selection

Defines which frequency reference source is selected when controlled from the fieldbus. Default value is 3. 0 = Analogue voltage reference from terminals 23, e.g. potentiometer 1 = Analogue current reference from terminals 45, e.g. transducer 2 = Keypad reference from the Reference Page (Group M3) 3 = Reference from the Fieldbus

2.1.14 Preset speed

Parameter value is automatically limited between the minimum and maximum frequencies (par. 2.1.1, 2.1.2). Reference is activated with digital input (Default A.3).

2.1.15 Can Bus node number

Only for NXP-drive when using NCSysDrive.


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5.2 INPUT SIGNALS 2.2.1 Start/Stop logic selection

0 DIN1: closed contact = start forward DIN2: closed contact = start reverse

Figure 5- 1. Start forward/Start reverse

The first selected direction has the highest priority.

When the DIN1 contact opens the direction of rotation starts the change. If Start forward (DIN1) and Start reverse (DIN2) signals are active simultaneously

the Start forward signal (DIN1) has priority. 1 DIN1: closed contact = start open contact = stop DIN2: closed contact = reverse open contact = forward See figure below.

Figure 5- 2. Start, Stop, Reverse

DIN1

DIN2

1 2 3

t

NX12K09

Outputfrequency

Stop function(par 2.4.7)= coasting

FWD

REV

DIN1

DIN2

t

NX12K10

Outputfrequency

Stop function(par 2.4.7= coasting

FWD

REV



5

2 DIN1: closed contact = start open contact = stop DIN2: closed contact = start enabled open contact = start disabled and drive stopped

if running 3 3-wire connection (pulse control): DIN1: closed contact = start pulse DIN2: open contact = stop pulse (DIN3 can be programmed for reverse command) See figure below.

Figure 5- 3. Start pulse/ Stop pulse.

The selections 4 to 6 shall be used to exclude the possibility of an unintentional start when, for example, power is connected, re-connected after a power failure, after a fault reset, after the drive is stopped by Run Enable (Run Enable = False) or when the control place is changed. The Start/Stop contact must be opened before the motor can be started. 4 DIN1: closed contact = start forward (Rising edge required to start) DIN2: closed contact = start reverse (Rising edge required to start) 5 DIN1: closed contact = start (Rising edge required to start) open contact = stop DIN2: closed contact = reverse open contact = forward 6 DIN1: closed contact = start (Rising edge required to start) open contact = stop DIN2: closed contact = start enabled open contact = start disabled and drive stopped if running

t

NX012K11

FWD

REV

Outputfrequency

Stop function(par 2.4.7)= coasting

If Start and Stop pulses aresimultaneous the Stop pulseoverrides the Start pulse

DIN1Start

DIN2Stop


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0

par. 2.2.4

par. 2.2.5

NX12K14

Max freq. par 2.1.2

Outputfrequency

Analogueinput

max.

Min freq. par 2.1.1

2.2.2 Reference offset for current input

0 No offset 1 Offset 4 mA (living zero), provides supervision of zero level signal. The response to

reference fault can be programmed with parameter 2.7.1.

2.2.3

2.2.4 Reference scaling, minimum value/maximum value

Setting value limits: 0 par. 2.2.4 par. 2.2.5 par. 2.1.2. If parameter 2.2.5 = 0 scaling is set off. The minimum and maximum frequencies are used for scaling.

Figure 5- 4. Left: Reference scaling; Right: No scaling used (par. 2.2.5 = 0).

2.2.5 Reference inversion

Inverts reference signal: Max. ref. signal = Min. set freq. Min. ref. signal = Max. set freq. 0 No inversion 1 Reference inverted

Figure 5- 5. Reference invert.

100

par. 2.2.4

par. 2.2.5

100

NX12K13

Outputfrequency

Analogueinput [V]

Max freq. par 2.1.2

Min freq. par 2.1.1

Outputfrequency

Analogueinput [V]

Max freq. par 2.1.2

Min freq. par 2.1.1



5

%

100%

63%

Par. 2.2.7

t [s]

NX12K15

Filtered signal

Unfiltered signal

2.2.6 Reference filter time

Filters out disturbances from the incoming analogue Uin signal. Long filtering time makes regulation response slower.

Figure 5- 6. Reference filtering

2.2.7 Digital inputs

The programming principle of the input/output signals in the 3-Speed Positioning Application is different compared to the conventional method used in most of the other Vacon NX applications. With the help of this method, you could define any of the digital inputs to function in parameter group G2.2.7.

In the conventional programming method, Function to Terminal Programming Method (FTT), you have a fixed input or output that you define a certain function for. The applications mentioned above, however, use the Terminal to Function Programming method (TTF) in which the programming process is carried out the other way round: Functions appear as parameters which the operator defines a certain input/output for.

Defining an input for a certain function on keypad:

Connecting a certain input with a certain function (parameter) is done by giving the parameter an appropriate value. The value is formed of the Board slot on the Vacon NX control board (see the product User's Manual) and the respective signal number, see below.


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Example: You want to connect the digital input function Calibration (P2.2.7.13) to the digital input DIA3 on the basic board OPT-A1. First find the parameter 2.2.7.13 on the keypad. Press the Menu button right once to enter the edit mode. On the value line, you will see the terminal type on the left (DigIN, DigOUT, An.IN, An.OUT) and on the right, the present input/output the function is connected to (B.3, A.2 etc.), or if not connected, a value (0.#). When the value is blinking, hold down the Browser button up or down to find the desired board slot and signal number. The program will scroll the board slots starting from 0 and proceeding from A to E and the I/O numbers from 1 to 10. Once you have set the desired value, press the Enter button once to confirm the change.

Defining unused inputs/outputs

All unused inputs and outputs must be given the board slot value 0 and the value 1 also for the terminal number. The value 0.0 is also the default value for most of the functions. However, if you want to use the values of a digital input signal for e.g. testing purposes only, you can set the board slot value to 0 and the terminal number to any number between 210 to place the input to a TRUE state. In other words, the value 1 corresponds to 'open contact' and values 2 to 10 to closed contact. In case of analogue inputs, giving the value 1 for the terminal number corresponds to 0%, value 2 corresponds to 20% and any value between 3 and 10 corresponds to 100%.

Note: The inputs, unlike the outputs, can not be changed in RUN state

ENTER



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Figure 5- 7. Digital inputs, programming principle

APPLICATION

Parameter 2.2.7.1

0 .1

Parameter 2.2.7.2

0 .1

Parameter 2.2.7.3

0 .1

Parameter 2.2.7.4

0 .1

Ext. fault, op. cont.

Ext. fault, cl. cont.

IN PUT SIGNAL

N XOPTA1, SLOT A

" Input 10" = A.1

"Input 11" = A.2

"Input 12" = A.3

"Input 13" = A.4

"Input 14" = A.5

"Input 15" = A.6

"ADDRESS 0 .x "

Address 0.1

FALSE

Address 0.2-0.10

TRUE

N XOPTB1, SLOT D

" Input 40" = D.1

"Input 41" = D.2

"Input 42" = D.3

Run enable

Acc./ dec. time

Parameter 2.2.7.10

A.3

Parameter 2.2.7.11

A.4

Parameter 2.2.7.12

A.5

Parameter 2.2.7.13

A.6

Parameter 2.2.7.14

D.1

Parameter 2.2.7.15

D.2

Parameter 2.2.7.16

D.3

Parameter 2.2.7.17

D.4

Parameter 2.2.7.18

D.5

Preset speed

Positioning speedgroups

Positioning mode

Calibra tion/Teaching

Position sel. Bit0

START-STOP-LogicP2.2.1

" Input 43" = D.4

"Input 44" = D.5

Position sel. Bit1

Position sel. Bit2

Position sel. Bit3

Position sel. Bit4

Ext. brake enable 0 .2

Parameter 2.2.7.19Address 0.1

TRUE


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2.2.7.1 External fault, closing contact

Fault is shown and motor is stopped when the input is active.

2.2.7.2 External fault, opening contact

Fault is shown and motor is stopped when the input is not active.

2.2.7.3 Run enable

contact open = Motor start disabled and the motor is stopped contact closed = Motor start enabled

2.2.7.4 Acc./Dec time selection

contact open = Acceleration/deceleration time 1 selected contact closed = Acceleration/deceleration time 2 selected

2.2.7.5 Force control place to I/O terminal

contact closed: Force control place to I/O terminal

2.2.7.6 Force control place to keypad

contact closed: Force control place to keypad

2.2.7.7 Force control place to fieldbus

contact closed: Force control place to fieldbus

When the control place is forced to change the values of Start/Stop, Direction and Reference valid in the respective control place are used (reference according to parameters 2.1.11, 2.1.12 and 2.1.13). Note: The value of parameter 3.1 Keypad Control Place does not change. When DIN3 opens the control place is selected according to parameter 3.1.

2.2.7.8 Reverse

contact open = Forward contact closed = Reverse

2.2.7.9 Fault reset

contact closed = Reset

2.2.7.10 Manual speed (Preset speed)

contact open = normal frequency reference contact closed = Force frequency reference to par. Value P2.1.14.

2.2.7.11 Positioning speed group selection

contact open = Group 1. Par. P2.10.10 P2.10.12. contact closed = Group 2. Par. P2.10.14 - P2.10.16.

2.2.7.12 Positioning mode ON

contact closed = positioning mode active

Can be used for reversing if parameter 2.2.1 has value 3



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2.2.7.13 Calibration

contact closed = calibration pulse active

2.2.7.14 Position selection, bit 0





Select the position with a combination of digital inputs. See truth table on page 29.

2.2.7.19 Enable mechanical brake control

contact closed = Enable external brake. Details on page 70.

2.2.7.20 Run Enable Low End

2.2.7.21 Run Enable High End

Posibility to connect proximity switch directly to frequency converter. When signal goes low drive is stopped by coast.

2.2.7.22 Reset calibration

Posibility to reset calibration from IO. Action same as parameter 2.10.19

2.2.7.23 Calibration Negative

Posibility to use negative calibration signal, used only in manual calibration.

2.2.7.24 Calibration prohibited

Posibility to prohibit incoming calibration signal. Used when car needs to be in certain position before calibration signal can be accept.


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1.00

20 mA

4 mA

10 mA

0.50 mA

Param. 2.3.5= 200%

Param. 2.3.5= 100%

Param. 2.3.5= 50%

12 mA

NX12K17

Analogueoutputcurrent

Selected (para. 2.3.1)signal max. value

A l

%

100%

63%

Par. 2.3.2

t [s]

NX12K16

Filtered signal

Unfiltered signal

5.3 OUTPUT SIGNALS

2.3.1 Analogue output function

This parameter selects the desired function for the analogue output signal. See Table 4-7. Output signals, G2.3 on page 21.

2.3.2 Analogue output filter time

Defines the filtering time of the analogue output signal.

Figure 5- 8. Analogue output filtering

2.3.3 Analogue output invert

Inverts the analogue output signal: Maximum output signal = Minimum set value Minimum output signal = Maximum set value

See parameter 2.3.5 below.

Figure 5- 9. Analogue output invert

2.3.4 Analogue output minimum

Defines the signal minimum to either 0 mA or 4 mA (living zero). Note the difference in analogue output scaling in parameter 2.3.5 (Figure 5-10). 0 Set minimum value to 0 mA 1 Set minimum value to 4 mA



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2.3.5 Analogue output scale

Scaling factor for analogue output.

Signal Max. value of the signal Output frequency Max frequency (par. 2.1.2) Freq. Reference Max frequency (par. 2.1.2) Motor speed Motor nom. speed

1xnmMotor Output current Motor nom. current 1xInMotor Motor torque Motor nom. torque

1xTnMotor Motor power Motor nom. power 1xPnMotor Motor voltage 100% x Unmotor DC-link voltage 1000 V

Table 5- 1. Analogue output scaling Figure 5- 10. Analogue output scaling

2.3.6 Digital output function

2.3.7 Relay output 1 function

2.3.8 Relay output 2 function

Setting value Signal content

0 = Not used Out of operation

Digital output DO1 sinks the current and programmable relay (RO1, RO2) is activated when: 1 = Ready The frequency converter is ready to operate

2 = Run The frequency converter operates (motor is running)

3 = Fault A fault trip has occurred

4 = Fault inverted A fault trip not occurred

5 = Vacon overheat warning The heat-sink temperature exceeds +70C

6 = External fault or warning Fault or warning depending on par. 2.7.3

7 = Reference fault or warning Fault or warning depending on par. 2.7.1 - if analogue reference is 420 mA and signal is


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20= At medium speed The output frequency has reached the set medium positioning speed reference

21= At creeping speed The output frequency has reached the set creeping positioning speed reference

22= New calibration! Fault active. (Positioning area override)

23= End limit Warning active. (End limit override)

24=Mechanical brake open Mechanical brake control logic

Table 5- 2. Digital output DO1 and relay outputs RO1 and RO2.

2.3.9 Output frequency limit supervision function

0 No supervision 1 Low limit supervision 2 High limit supervision If the output frequency goes under/over the set limit (P 2.3.10) this function generates a warning message via the digital output DO1 and via the relay output RO1 or RO2 depending on the settings of parameters 2.3.62.3.8.

2.3.10 Output frequency limit supervision value

Selects the frequency value supervised by parameter 2.3.9.

Kuva5- 11. Output frequency limit supervision

2.3.11 Analogue output 2 signal selection

Connect the AO2 signal to the analogue output of your choice with this parameter. For more information, see Pump and fan control application manual, Chapter 2.

Par 2.3.10

f[Hz]

t

21 RO122 RO123 RO1

21 RO122 RO123 RO1

21 RO122 RO123 RO1

NX12K19

Par 2.3.9 = 2

Example:



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2.3.12 Analogue output 2 function 2.3.13 Analogue output 2 filter time 2.3.14 Analogue output 2 inversion 2.3.15 Analogue output 2 minimum 2.3.16 Analogue output 2 scaling

For more information of these five parameters, see the corresponding parameters for the analogue output 2 on page 42 and 43.


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5.4 DRIVE CONTROL

2.4.1 Acceleration/Deceleration ramp 1 shape 2.4.2 Acceleration/Deceleration ramp 2 shape

The start and end of acceleration and deceleration ramps can be smoothed with these parameters. Setting value 0 gives a linear ramp shape which causes acceleration and deceleration to act immediately to the changes in the reference signal. Setting value 0.110 seconds for this parameter produces an S-shaped acceleration/deceleration. The acceleration time is determined with parameters 2.1.3/2.1.4 (2.4.3/2.4.4).

Figure 5- 12. S-shaped acceleration/deceleration

2.4.3 Acceleration time 2 2.4.4 Deceleration time 2

These values correspond to the time required for the output frequency to accelerate from the zero frequency to the set maximum frequency (par. 2.1.2). These parameters give the possibility to set two different acceleration/deceleration time sets for one application. The active set can be selected with the programmable signal DIN3 (P. 2.2.7.4).

2.4.5 Brake chopper

0 = No brake chopper used 1 = Brake chopper in use when running 2 = External brake chopper 3 = Used when stopped/running When the frequency converter is decelerating the motor, the inertia of the motor and the load are fed into an external brake resistor. This enables the frequency converter to decelerate the load with a torque equal to that of acceleration (provided that the correct brake resistor has been selected). See separate Brake resistor installation manual.

2.1.3, 2.1.4(2.4.3, 2.4.4)

[Hz]

[t]

2.4.1 (2.4.2)

2.4.1 (2.4.2)

UD012K20



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2.4.6 Start function

Ramp: 0 The frequency converter starts from 0 Hz and accelerates to the set reference

frequency within the set acceleration time. (Load inertia or starting friction may cause prolonged acceleration times).

Flying start: 1 The frequency converter is able to start into a running motor by applying a

small torque to motor and searching for the frequency corresponding to the speed the motor is running at. Searching starts from the maximum frequency towards the actual frequency until the correct value is detected. Thereafter, the output frequency will be increased/decreased to the set reference value according to the set acceleration/deceleration parameters. Use this mode if the motor is coasting when the start command is given. With the flying start it is possible to ride through short mains voltage interruptions.

2.4.7 Stop function

Coasting: 0 The motor coasts to a halt without any control from the frequency converter,

after the Stop command.

Ramp: 1 After the Stop command, the speed of the motor is decelerated according to

the set deceleration parameters. If the regenerated energy is high it may be necessary to use an external braking resistor for faster deceleration.

Normal stop: Ramp/ Run Enable stop: coasting 2 After the Stop command, the speed of the motor is decelerated according to

the set deceleration parameters. However, when Run Enable is selected (e.g. DIN3), the motor coasts to a halt without any control from the frequency converter.

Normal stop: Coasting/ Run Enable stop: ramping 3 The motor coasts to a halt without any control from the frequency converter.

However, when Run Enable signal is selected (e.g. DIN3), the speed of the motor is decelerated according to the set deceleration parameters. If the regenerated energy is high it may be necessary to use an external braking resistor for faster deceleration.

2.4.8 Flux brake

The flux braking can be set ON or OFF. 0 = Flux braking OFF 1 = Flux braking ON

2.4.9 Flux braking current

Defines the flux braking current value.


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2.5.1 2.5.2 NX12K24

Reference [Hz]

Outputfrequency [Hz]

fout [Hz]

Par. 2.5.2

Par. 2.5.1

par. 2.5.3 = 0,2

par. 2.5.3 = 1,2

5.5 PROHIBIT FREQUENCIES

2.5.1, 2.5.2 Prohibit frequency area; Low limit/High limit

In some systems it may be necessary to avoid certain frequencies because of mechanical resonance problems. With these parameters it is possible to set limits for the "skip frequency" region.

Figure 5-13. Prohibit frequency area setting.

2.5.3 Acc/dec ramp speed scaling ratio between prohibit frequency limits

Defines the acceleration/deceleration time when the output frequency is between the selected prohibit frequency range limits (parameters 2.5.1 and 2.5.2). The ramping speed (selected acceleration/ deceleration time 1 or 2) is multiplied with this factor. E.g. value 0.1 makes the acceleration time 10 times shorter than outside the prohibit frequency range limits.

Figure 5- 14. Ramp speed scaling between prohibit frequencies



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5.6 MOTOR CONTROL

2.6.1 Motor control mode

0 Frequency control: The I/O terminal and keypad references are frequency

references and the frequency converter controls the output frequency (output frequency resolution = 0.01 Hz)

1 Speed control: The I/O terminal and keypad references are speed references and the frequency converter controls the motor speed (accuracy 0,5%).

The following selections are available for Vacon NXP drives only, althou Torque control is wisible it han not be used fro positioning.

2 Torque control In torque control mode, the references are used to control

the motor torque.

3 Speed crtl (closed loop) The I/O terminal and keypad references are speed references and the frequency converter controls the motor speed very accurately comparing the actual speed received from the tachometer to the speed reference (accuracy 0.01%).

2.6.2 U/f optimisation

Automatic torque boost

The voltage to the motor changes automatically which makes the motor produce sufficient torque to start and run at low frequencies. The voltage increase depends on the motor type and power. Automatic torque boost can be used in applications where starting torque due to starting friction is high, e.g. in conveyors.

NOTE! In high torque - low speed applications - it is likely that the motor

will overheat. If the motor has to run a prolonged time under these conditions, special attention must be paid to cooling the motor. Use external cooling for the motor if the temperature tends to rise too high.

2.6.3 U/f ratio selection

Linear: The voltage of the motor changes linearly with the frequency in the constant 0 flux area from 0 Hz to the field weakening point where the nominal voltage is

supplied to the motor. Linear U/f ratio should be used in constant torque applications.

Squared: The voltage of the motor changes following a squared curve form 1 with the frequency in the area from 0 Hz to the field weakening point where

the nominal voltage is also supplied to the motor. The motor runs under magnetised below the field weakening point and produces less torque and electromechanical noise. Squared U/f ratio can be used in applications where torque demand of the load is proportional to the square of the speed, e.g in centrifugal fans and pumps.


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Figure 5- 15. Linear and squared change of motor voltage

Programmable U/f curve: 2 The U/f curve can be programmed with three different points. Programmable

U/f curve can be used if the other settings do not satisfy the needs of the application.

Figure 5- 16. Programmable U/f curve

Linear with flux optimisation: 3 The frequency converter starts to search for the minimum motor current in

order to save energy, lower the disturbance level and the noise. This function can be used in applications with constant motor load, such as fans, pumps etc.

2.6.4 Field weakening point

The field weakening point is the output frequency at which the output voltage reaches the set (par. 2.6.5) maximum value.

Unpar.2.6.5

U[V]

f[Hz]

NX12K07

Default: Nominalvoltage of the motor

Linear

Squared

Field weakeningpoint

Default: Nominalfrequency of themotor

Unpar.2.6.5

U[V]

f[Hz]

NX12K07

Default: Nominalvoltage of the motor

Linear

Squared

Field weakeningpoint

Default: Nominalfrequency of themotor

UnPar 2.6.5

Par. 2.6.4

U[V]

f[Hz]

NX12K08Par. 2.6.6(Def. 5 Hz)

Par. 2.6.7(Def. 10%)Par. 2.6.8(Def. 1.3%)

Default: Nominalvoltage of the motor Field weakening point

Default: Nominalfrequency of the motor



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2.6.5 Voltage at field weakening point

Above the frequency at the field weakening point, the output voltage remains at the set maximum value. Below the frequency at the field weakening point, the output voltage depends on the setting of the U/f curve parameters. See parameters 2.6.2, 2.6.3, 2.6.6 and 2.6.7. When the parameters 2.1.6 and 2.1.7 (nominal voltage and nominal frequency of the motor) are set, the parameters 2.6.4 and 2.6.5 are automatically given the corresponding values. If you need different values for the field weakening point and the maximum output voltage, change these parameters after setting the parameters 2.1.6 and 2.1.7.

2.6.6 U/f curve, middle point frequency

If the programmable U/f curve has been selected with the parameter 2.6.3 this parameter defines the middle point frequency of the curve. See figure 5-16.

2.6.7 U/f curve, middle point voltage

If the programmable U/f curve has been selected with the parameter 2.6.3 this parameter defines the middle point voltage of the curve. See figure 5-16.

2.6.8 Output voltage at zero frequency

If the programmable U/f curve has been selected with the parameter 2.6.3 this parameter defines the zero frequency voltage of the curve. See figure 5-16.

2.6.9 Switching frequency

Motor noise can be minimised using a high switching frequency. Increasing the switching frequency reduces the capacity of the frequency converter unit. The range of this parameter depends on the size of the frequency converter: Up to NX5 0061: 116 kHz >NX5 0072: 110 kHz

2.6.10 Overvoltage controller 2.6.11 Undervoltage controller

These parameters allow the under-/overvoltage controllers to be switched out of operation. This may be useful, for example, if the mains supply voltage varies more than 15% to +10% and the application will not tolerate this over-/undervoltage. In this case, the regulator controls the output frequency taking the supply fluctuations into account. Note: Over-/undervoltage trips may occur when controllers are switched out of operation. 0 Controller switched off 1 Controller switched on


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5.7 PROTECTIONS

2.7.1 Response to the reference fault

0 = No response 1 = Warning 2 = Warning, the frequency from 10 seconds back is set as reference 3 = Warning, the Preset Frequency (Par. 2.7.2) is set as reference 4 = Fault, stop mode after fault according to parameter 2.4.7 5 = Fault, stop mode after fault always by coasting A warning or a fault action and message is generated if the 420 mA reference signal is used and the signal falls below 3.5 mA for 5 seconds or below 0.5 mA for 0.5 seconds. The information can also be programmed into digital output DO1 or relay outputs RO1 and RO2.

2.7.2 4 mA Fault: preset frequency reference

If the value of parameter 2.7.1 is set to 3 and the 4 mA fault occurs then the frequency reference to the motor is the value of this parameter.

2.7.3 Response to external fault

0 = No response 1 = Warning 2 = Fault, stop mode after fault according to parameter 2.4.7 3 = Fault, stop mode after fault always by coasting A warning or a fault action and message is generated from the external fault signal in the programmable digital inputs DIN3. The information can also be programmed into digital output DO1 and into relay outputs RO1 and RO2.

2.7.4 Input phase supervision

0 = No response 1 = Warning 2 = Fault, stop mode after fault according to parameter 2.4.7 3 = Fault, stop mode after fault always by coasting The input phase supervision ensures that the input phases of the frequency converter have an approximately equal current.

2.7.5 Response to undervoltage fault

1 = Warning 2 = Fault, stop mode after fault according to parameter 2.4.7 3 = Fault, stop mode after fault always by coasting For the undervoltage limits see the products User's Manual.



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2.7.6 Output phase supervision

0 = No response 1 = Warning 2 = Fault, stop mode after fault according to parameter 2.4.7 3 = Fault, stop mode after fault always by coasting Output phase supervision of the motor ensures that the motor phases have an approximately equal current.

2.7.7 Earth fault protection

0 = No response 1 = Warning 2 = Fault, stop mode after fault according to parameter 2.4.7 3 = Fault, stop mode after fault always by coasting Earth fault protection ensures that the sum of the motor phase currents is zero. The overcurrent protection is always working and protects the frequency converter from earth faults with high currents.

Parameters 2.7.82.7.12, Motor thermal protection: General The motor thermal protection is to protect the motor from overheating. The Vacon drive is capable of supplying higher than nominal current to the motor. If the load requires this high current there is a risk that the motor will be thermally overloaded. This is the case especially at low frequencies. At low frequencies the cooling effect of the motor is reduced as well as its capacity. If the motor is equipped with an external fan the load reduction at low speeds is small. The motor thermal protection is based on a calculated model and it uses the output current of the drive to determine the load on the motor. The motor thermal protection can be adjusted with parameters. The thermal current IT specifies the load current above which the motor is overloaded. This current limit is a function of the output frequency. The thermal stage of the motor can be monitored on the control keypad display. See the products User's Manual.

CAUTION! The calculated model does not protect the motor if the airflow to the motor is reduced by blocked air intake grill. !


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100%INmotor

45%INmotor

IT

f

I

NX12k6235 Hz

Overload area

Currentlimit,par. 2.1.5

2.7.8 Motor thermal protection

0 = No response 1 = Warning 2 = Fault, stop mode after fault according to parameter 2.4.7 3 = Fault, stop mode after fault always by coasting If tripping is selected the drive will stop and activate the fault stage. Deactivating the protection, i.e. setting parameter to 0, will reset the thermal stage of the motor to 0%.

2.7.9 Motor thermal protection: Motor ambient temperature factor

The factor can be set between -100.0%100.0%.

2.7.10 Motor thermal protection: Zero frequency current

The current can be set between 0150.0% x InMotor. This parameter sets the value for thermal current at zero frequency. See figure 5-17. The default value is set assuming that there is no external fan cooling the motor. If an external fan is used this parameter can be set to 90% (or even higher). Note: The value is set as a percentage of the motor name plate data, parameter 2.1.9 (Nominal current of motor), not the drive's nominal output current. The motor's nominal current is the current that the motor can withstand in direct on-line use without being overheated. If you change the parameter Nominal current of motor, this parameter is automatically restored to the default value. Setting this parameter does not affect the maximum output current of the drive which is determined by parameter 2.1.5 alone.

Figure 5- 17. Motor thermal current IT curve



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2.7.11 Motor thermal protection: Time constant

This time can be set between 1 and 200 minutes. This is the thermal time constant of the motor. The bigger the motor, the bigger the time constant. The time constant is the time within which the calculated thermal stage has reached 63% of its final value. The motor thermal time is specific to the motor design and it varies between different motor manufacturers. If the motor's t6time (t6 is the time in seconds the motor can safely operate at six times the rated current) is known (given by the motor manufacturer) the time constant parameter can be set basing on it. As a rule of thumb, the motor thermal time constant in minutes equals to 2xt6. If the drive is in stop stage the time constant is internally increased to three times the set parameter value. The cooling in the stop stage is based on convection and the time constant is increased. See also figure 5-18.

2.7.12 Motor thermal protection: Motor duty cycle

Defines how much of the nominal motor load is applied. The value can be set to 0%

Vacon NXS 3 Speed Positioning ASFIFF15 Application

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Transcript of Vacon NXS 3 Speed Positioning ASFIFF15 Application