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Mitsubishi Electric FR-A700-A1 Instruction Manual
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Mitsubishi Electric FR-A700-A1 Instruction Manual

Mitsubishi Electric FR-A700-A1 Instruction Manual

Dancer control function/tension control function
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INVERTER
FR-A700-A1
INSTRUCTION MANUAL
1
OUTLINE OF THE DEDICATED FUNCTIONS.............................................. 1
2
PARAMETER LIST ........................................................................................ 2
3
3.1
Dedicated specification list ..................................................................................... 14
3.2
System configuration example ............................................................................... 15
3.3
Control block diagram............................................................................................. 15
3.4
Dedicated I/O signal ............................................................................................... 16
3.5
Parameter setting procedure for dancer control function....................................... 19
3.6
Gain adjustment in actual operation....................................................................... 22
3.7
Dancer control detail............................................................................................... 25
3.8
Winding diameter compensation function .............................................................. 32
3.9
Main speed setting.................................................................................................. 43
3.10
Dedicated monitor function..................................................................................... 49
3.11
Regeneration avoidance function (Pr. 882)............................................................ 53
3.12
4
TENSION CONTROL................................................................................... 55
4.1
Dedicated function list............................................................................................. 55
4.2
System configuration example ............................................................................... 55
4.3
Block diagram of the control ................................................................................... 56
4.4
Dedicated I/O signal ............................................................................................... 56
4.5
Tension control parameter setting procedure......................................................... 57
4.6
Details of the tension control .................................................................................. 59
5
APPLICATION EXAMPLE........................................................................... 67
5.1
5.2
5.3
Tension control for the winding operation of printers ............................................. 73
6
APPENDIX ................................................................................................... 74
6.1
Compatible plug-in options ..................................................................................... 74
6.2
Differences from the standard inverter ................................................................... 74
6.3
6.4
instruction code....................................................................................................... 76
6.5
Index ....................................................................................................................... 80
CONTENTS
1
2
3
4
5
6

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Summary of Contents for Mitsubishi Electric FR-A700-A1

  • Page 1: Table Of Contents

    Tension control for the winding operation of printers ..........73 APPENDIX ....................74 Compatible plug-in options ..................74 Differences from the standard inverter ..............74 Parameter change when replacing FR-A500-A1 with FR-A700-A1 ...... 75 Control mode-based parameter (function) correspondence and instruction code....................... 76 Index ........................80...
  • Page 2 —CONTENTS— OUTLINE OF THE DEDICATED FUNCTIONS PARAMETER LIST DANCER CONTROL/WINDING DIAMETER COMPENSATION Dedicated specification list ......................14 System configuration example......................15 Control block diagram........................15 Dedicated I/O signal ......................... 16 3.4.1 Input signal list ..............................16 3.4.2 Output signal list ..............................17 3.4.3 Analog input signals and pulse train input signals .....................
  • Page 3 Tension control for the winding operation of printers ..............73 APPENDIX Compatible plug-in options ......................74 Differences from the standard inverter ..................74 Parameter change when replacing FR-A500-A1 with FR-A700-A1..........75 Control mode-based parameter (function) correspondence and instruction code ..........................76 Index ..............................80...

  • Page 4: Dancer Control Function

    OUTLINE OF THE DEDICATED FUNCTIONS The following dedicated functions for winding and unwinding machine are added to FR-A700 series standard inverter. In this supplementary instruction manual, specifications of the new functions are included. Refer to the FR-A700 Instruction Manuals for functions not explained in this supplementary instruction manual. This product is useful when difference between minimum diameter and maximum diameter is great and when feeding speed is fast in winding machine with dancer roll.

  • Page 5: Parameter List

    PARAMETER LIST PARAMETER LIST Set the necessary parameters to meet the load and operational specifications. Parameter setting, change and check can be made from the operation panel (FR-DU07). For the parameters not described in this Instruction Manual, refer to the Instruction Manual of FR-A700 series.
  • Page 6 PARAMETER LIST Refer Minimum Initial Customer Parameter Name Setting Range Setting Value Setting Increments Page Output frequency detection for reverse 0 to 400Hz, 9999 0.01Hz 9999 — rotation Second acceleration/deceleration time 0 to 3600/360s 0.1/0.01s — Second deceleration time 0 to 3600/360s, 9999 0.1/0.01s 9999 —...
  • Page 7 PARAMETER LIST Refer Minimum Initial Customer Parameter Name Setting Range Setting Value Setting Increments Page Speed control gain (advanced magnetic 0 to 200%, 9999 0.1% 9999 — flux vector) 0 to 50, 9999/ Motor constant (R1) 0.001/0.01m 9999 — 0 to 400m, 9999 0 to 50, 9999/ 0.001/ Motor constant (R2)
  • Page 8 PARAMETER LIST Refer Minimum Initial Customer Parameter Name Setting Range Setting Value Setting Increments Page 0, 2, 4, 6, 8, 10, 102, 104, Speed setting switchover — 106, 108, 110 PU display language selection 0 to 7 — Stall prevention level at 0V input 0 to 220% 0.1% 150%...
  • Page 9 PARAMETER LIST Refer Minimum Initial Customer Parameter Name Setting Range Setting Value Setting Increments Page JOG terminal function selection 0 to 20, 22 to 28, 30, CS terminal function selection MRS terminal function selection 32 to 35, 42 to 44, 62, STOP terminal function selection 64 to 71, 74, 76, 83, 9999 RES terminal function selection...
  • Page 10 PARAMETER LIST Refer Minimum Initial Customer Parameter Name Setting Range Setting Value Setting Increments Page PID position gain C1 0.1 to 1000%, 9999 0.1% 9999 PID position gain C2 0.1 to 1000%, 9999 0.1% 9999 PID position gain D 0.1 to 1000%, 9999 0.1% 9999 Winding/unwinding length detection...
  • Page 11 PARAMETER LIST Refer Minimum Initial Customer Parameter Name Setting Range Setting Value Setting Increments Page 0 to 500A, 9999/ Second motor excitation current 0.01/0.1A 9999 — 0 to 3600A, 9999 Rated second motor voltage 0 to 1000V 0.1V 200/400V — Rated second motor frequency 10 to 120Hz 0.01Hz...
  • Page 12 PARAMETER LIST Refer Minimum Initial Customer Parameter Name Setting Range Setting Value Setting Increments Page Parameter for manufacturer setting. Do not set. Protocol selection 0, 1 — NET mode operation command source 0, 1, 9999 9999 — selection PU mode operation command source 1, 2, 3 —...
  • Page 13 PARAMETER LIST Refer Minimum Initial Customer Parameter Name Setting Range Setting Value Setting Increments Page Taper setting analog input selection 3 to 6, 9999 9999 Dancer tension setting input selection 3 to 6, 9999 9999 Stall torque setting 0 to 200% 0.1% Speed limit for stall operation 0 to 60Hz...
  • Page 14 PARAMETER LIST Refer Minimum Initial Customer Parameter Name Setting Range Setting Value Setting Increments Page Initial winding diameter calculation start 400% to 600% 0.01% 400% point Initial winding diameter calculation 0 to 50% 0.1% dead zone Accumulated amount 1 to 5000mm, 8888, 9999 160mm Speed control P gain at a start 0 to 1000%...
  • Page 15 PARAMETER LIST Refer Minimum Initial Customer Parameter Name Setting Range Setting Value Setting Increments Page Brake operation selection 0, 1 — Speed deviation time 0 to 100s 0.1s — Excitation ratio 0 to 100% 100% — Terminal 4 function assignment 0, 1, 4, 9999 —...
  • Page 16 PARAMETER LIST Refer Minimum Initial Customer Parameter Name Setting Range Setting Value Setting Increments Page Terminal 1 bias (speed) 0 to 300% 0.1% — (917) Terminal 1 gain frequency (speed) 0 to 400Hz 0.01Hz 60Hz — (918) Terminal 1 gain (speed) 0 to 300% 0.1% 100%...

  • Page 17: Dancer Control/Winding Diameter Compensation

    Dedicated specification list DANCER CONTROL/WINDING DIAMETER COMPENSATION 3.1 Dedicated specification list Item Description PID control, PI control, P control, and PD control can be selected. Control method Gain switchover by dancer position is available. Gain switchover by external terminal input is available. Dancer roll position setting Set a point with parameter.

  • Page 18: System Configuration Example

    Reduction gear Encoder Dancer roll FR-A700 position Vector Control (-10 to 10V) FR-A7AP Line speed * FR-A700-A1 Main speed setting Programmable controller Start signal STF/STR Dancer control selection (X83) RL (X83) * Input line speed using line speed detector. 3.3 Control block diagram...

  • Page 19: Dedicated I/O Signal

    Dedicated I/O signal 3.4 Dedicated I/O signal 3.4.1 Input signal list Use contact input signals by assigning them to Pr. 178 to Pr. 189 (Input terminal function selection). Refer Pr. 178 to Type Signal Description Pr. 189 setting page Dancer roll target position —...

  • Page 20: Output Signal List

    Dedicated I/O signal Refer Pr. 178 to Type Pr. 189 Signal Description setting page Select to enable/disable winding diameter compensation. When X84 is Winding diameter ON, winding diameter compensation is disabled (winding diameter is compensation selection retained), and only the dancer control operates. (Input of X83 signal is necessary) Select to enable/disable dancer control.

  • Page 21: Analog Input Signals And Pulse Train Input Signals

    Dedicated I/O signal 3.4.3 Analog input signals and pulse train input signals Encoder Single-phase pulse Analog input pulse train train input input Refer to Function page Terminal 6 Terminal Terminal 1 Terminal 4 FR-A7AP/ Terminal 2 (FR-A7AZ) FR-A7AL Pr. 868 Pr.

  • Page 22: Parameter Setting Procedure For Dancer Control Function

    Parameter setting procedure for dancer control function 3.5 Parameter setting procedure for dancer control function The following flowchart shows the parameter setting example for the dancer control. Start Select control method according to Select any of V/F control, Advanced magnetic flux vector control, Real the application and the motor.

  • Page 23: Control Function

    Parameter setting procedure for dancer control function Continued from the last page. Set acceleration/deceleration time as Pr. 756, Pr. 757: below. When cushion time is considered in main speed command, set 0s. (Refer to page 46) Acceleration/  Pr. 7 Acceleration time = "0s" Deceleration ...
  • Page 24 Parameter setting procedure for dancer control function Continued from the last page. Input method for line speed Analog input Without line When Pr. 763 = "3, Pulse train input speed input signal 4, 5 or 6" When Pr. 763 = "1, 2 or 7" When Pr.

  • Page 25: Gain Adjustment In Actual Operation

    Gain adjustment in actual operation 3.6 Gain adjustment in actual operation Prepare rolls of minimum, medium, and maximum diameters. (If a roll of medium diameter is not available, obtain P/I gain by calculation.) Adjust • Speed control "P" gain, speed control "I" gain (Real sensorless vector control/Vector control) •...
  • Page 26 Gain adjustment in actual operation Continued from the last page. Medium diameter roll is Medium diameter roll is not available. available. Adjustment at medium diameter roll 1 Increase Pr. 820 Speed control P gain 1 by 10% increments, and adjust the gain to "the setting before vibration/noise is produced"  Obtain the setting(C) for Pr.

  • Page 27: Dancer Pid Gain Adjustment

    Gain adjustment in actual operation 3.6.2 Dancer PID gain adjustment Set the minimum-diameter roll and connect material from the beginning to the end of machine, and increase the speed gradually while observing the movement of the dancer roll. At this time, adjust the line speed for dancer roll to move like the below diagram 2). Adjust to the speed where the dancer roll works without problems at acceleration, constant speed, deceleration, and sudden deceleration.

  • Page 28: Dancer Control Detail

    Dancer control detail 3.7 Dancer control detail POINT Turn X83 signal ON to perform dancer control and winding diameter compensation. When X83 signal is OFF, dancer control and winding diameter compensation are not performed. It may be necessary to perform dancer control with winding diameter compensation disabled (winding diameter is retained) for intermediate shafts.
  • Page 29 Dancer control detail Integral clamp at positive polarity (Pr. 709)/integral clamp at negative polarity (Pr. 710) Limit level of PID integral control action can be set from 0 to 100% with parameters. If Pr. 709 Integral clamp (positive polarity) is set while Pr. 710 Integral clamp (negative polarity) is not set, the setting in Pr. 709 becomes the clamp value in positive and negative polarity.

  • Page 30: Dancer Roll Target Position (Pr. 133, Pr. 702, Pr. 731)

    Dancer control detail 3.7.2 Dancer roll target position (Pr. 133, Pr. 702, Pr. 731) Dancer signal input selection (Pr. 731) Use Pr. 731 to assign a terminal for the dancer signal input. Setting in Pr.731 Input terminal Terminal 2 (0 to 100%) Terminal 4 (0 to 100%) 5 (Initial value) Terminal 1 (-100 to 100%)
  • Page 31 Dancer control detail Dancer roll malposition detection (signal loss detection) This function prevents motor speed to increase by the dancer control when dancer roll falls by signal loss. Parameter Initial Name Setting Range Increments Remarks Number Value 400%  -100% PID upper limit 400 to 600%, 9999 0.1%...

  • Page 32: Adjustment Of Target Position Input (Pr. 708, C3, C4, C6, C7, C13, C15, C31, C33)

    Dancer control detail 3.7.3 Adjustment of target position input (Pr. 708, C3, C4, C6, C7, C13, C15, C31, C33) Parameter Initial Name Setting Range Increments Remarks Number Value Filter time constant for dancer control 0 to 5s 0.001s input C3(902) Terminal 2 frequency setting bias 0 to 300% 0.1%...
  • Page 33 Dancer control detail PID position gain switchover (Pr. 138, Pr. 270 to Pr. 278) Gain can be switched according to the deviation between dancer roll position signal (terminal 1 input (initial value)) and desired set point. Parameter Initial Name Setting Range Increments Remarks Number...

  • Page 34: Speed Compensation (Pr. 706, Pr. 798)

    Dancer control detail 3.7.6 Speed compensation (Pr. 706, Pr. 798) Perform speed compensation for the result of PID calculation. Parameter Initial Name Setting Range Increments Remarks Number Value When setting is 0%, Pr. 798 and Speed compensation gain 0 to 200% 0.1% X35 are inactive.

  • Page 35: Winding Diameter Compensation Function

    Winding diameter compensation function 3.8 Winding diameter compensation function POINT Turn X83 signal ON to perform dancer control, tension control and winding diameter compensation. When X83 signal is OFF, dancer control, tension control and winding diameter compensation are not performed. To disable dancer control and perform winding diameter compensation only, turn ON X83 signal and X85 together.

  • Page 36: Line Speed Input Setting (Pr. 763 To Pr. 768)

    Winding diameter compensation function 3.8.2 Line speed input setting (Pr. 763 to Pr. 768) Line speed input selection (Pr. 763) Select input terminal of line speed command to perform winding diameter calculation. When material thickness is set to Pr. 752 Material thickness d1 (Pr. 752 ...

  • Page 37: Setting At Driving Shaft (Pr. 762, Pr. 773, Pr. 774, X56 Signal)

    Winding diameter compensation function 3.8.3 Setting at driving shaft (Pr. 762, Pr. 773, Pr. 774, X56 signal) Winding/unwinding selection with parameter (Pr. 762) Select whether driving roll is a winding shaft or unwinding shaft. (Initial winding diameter of winding shaft is the minimum diameter, initial winding diameter of unwinding shaft is the maximum diameter.) Pr.

  • Page 38: Material Thickness, Maximum/Minimum Winding Diameter Setting (Pr. 720 To Pr. 727, Pr. 752 To Pr. 755, X53 Signal, X54 Signal)

    Winding diameter compensation function 3.8.4 Material thickness, maximum/minimum winding diameter setting (Pr. 720 to Pr. 727, Pr. 752 to Pr. 755, X53 signal, X54 signal) Winding diameter calculator setting by the material thickness (Pr. 752 to Pr. 755) When a value other than 9999 is set in Pr. 752, the winding diameter is calculated from the product of the material thickness and the number of rotations of the roll.

  • Page 39: Rotation Speed At Winding Diameter Calculated Value Activation (Pr. 797)

    Winding diameter compensation function Minimum winding diameter/maximum diameter and material thickness selection by external terminal input (X53 signal, X54 signal) By switching ON/OFF X53 signal and X54 signal, minimum/maximum winding diameter can be selected. For the X53/X54 signal, set "53(X53)/54(X54)" in any of Pr. 178 to Pr. 189 (input terminal function selection) to assign the function.

  • Page 40: Storage And Clear Of Winding Diameter Calculation Result (Pr. 781 To Pr. 783, X55 Signal)

    Winding diameter compensation function 3.8.6 Storage and clear of winding diameter calculation result (Pr. 781 to Pr. 783, X55 signal) Results of winding diameter calculation can be stored in inverter. Parameter Name Setting Range Increments Initial Value Number Winding diameter storage selection 0, 1 Stored winding diameter 1 to 6553...

  • Page 41: Sampling Time And Restricted Increase Of Winding Diameter (Pr. 707, Pr. 771, Pr. 772, Pr. 786)

    Winding diameter compensation function 3.8.7 Sampling time and restricted increase of winding diameter (Pr. 707, Pr. 771, Pr. 772, Pr. 786) Parameter Name Setting Range Increments Initial Value Remarks Number Sampling time for winding When 9999, approx. 0.01 to 1s, 9999 0.01s 9999 10ms...

  • Page 42: Winding Diameter Calculation At Start (Pr. 133, Pr. 712, Pr. 790 To Pr. 796)

    Winding diameter compensation function 3.8.9 Winding diameter calculation at start (Pr. 133, Pr. 712, Pr. 790 to Pr. 796) Winding diameter is calculated when dancer roll moves from the upper limit position to the target position or from the lower limit position to the target position at a start.
  • Page 43 Winding diameter compensation function Initial winding diameter calculation dead zone (Pr. 791), Initial winding diameter calculation dead zone 2 (Pr. 712) When performing initial winding diameter calculation, initial winding diameter calculation dead zone for dancer position can be set. Dead zone 2 Dead zone band = (Target position - Start position) Pr.
  • Page 44 Winding diameter compensation function Integral term limit at start (Pr. 795)/ PID term limit at start (Pr. 796) Set the limit for manipulated variable of PID control for dancer roll to prevent a motor from over-speeding at an initial winding diameter calculation. Set the limit for integral control action of PID control in Pr. 795, and set the limit for manipulated variable of PID control in Pr.

  • Page 45: Storage And Clear Of Winding/Unwinding Length (Pr. 279 To Pr. 281, X86 Signal, Y53 Signal)

    Storage and clear of winding/unwinding length (Pr. 279 to Pr. 281, X86 signal, Y53 signal) When selecting line speed input (Pr. 763 = 1 to 7), winding (unwinding) length can be displayed. Encoder for line speed detection FR-A700-A1 R/L1 Power S/L2 supply...

  • Page 46: Main Speed Setting

    Main speed setting 3.9 Main speed setting 3.9.1 Input method of main speed command (Pr. 732) Pr.732 Input terminal Remarks 0 (initial value) Follows the frequency command Terminal JOG Single-phase pulse train input Pr. 291 must be set. FR-A7AP/FR-A7AL Encoder pulse train input Terminal 2 (0 to 100%) Calibrated with Pr.

  • Page 47: Main Speed Command By Analog Input

    Main speed setting 3.9.2 Main speed command by analog input Analog input gain selection (Pr. 728 to Pr. 730, X87 signal, X88 signal) The gain of analog input for the main speed setting can be changed by X87 signal and X88 signal. Set "87"...

  • Page 48: Main Speed Command By Terminal Jog Single-Phase Pulse Train Input (Pr. 384 To Pr. 386, Pr. 703, Pr. 704)

    Main speed setting 3.9.3 Main speed command by terminal JOG single-phase pulse train input (Pr. 384 to Pr. 386, Pr. 703, Pr. 704) At JOG input (single-phase pulse train input), input from terminal JOG is converted to main rotation speed frequency (Hz). Pulse input unit (kpps) ...

  • Page 49: Acceleration/Deceleration Time Setting (Pr. 756 To Pr. 761, X51 Signal, X52 Signal)

    Main speed setting 3.9.4 Acceleration/deceleration time setting (Pr. 756 to Pr. 761, X51 signal, X52 signal) Acceleration/deceleration time setting for main speed (Pr. 756 to Pr. 761) Set acceleration/deceleration time for main speed by setting acceleration time (Pr. 756, Pr. 758, Pr. 760) and deceleration time (Pr.

  • Page 50: Speed Control Proportional Gain Selection Based On Winding Diameter Compensation Result (Pr. 775 To Pr. 780)

    Main speed setting 3.9.5 Speed control proportional gain selection based on winding diameter compensation result (Pr. 775 to Pr. 780) Speed control proportional gain at vector control and Real sensorless vector control can be changed based on a winding diameter calculation result. Parameter Name Setting Range...

  • Page 51: Target Winding Diameter Achieved Signal (Pr. 750, Y52 Signal)

    Main speed setting 3.9.6 Target winding diameter achieved signal (Pr. 750, Y52 signal) Result of winding diameter calculation in inverter and Pr. 750 Target winding diameter are compared. When the winding diameter exceeds its target, target winding diameter achieved signal Y52 turns ON. Set "52 (positive logic) or 152 (negative logic)"...

  • Page 52: Dedicated Monitor Function

    Dedicated monitor function 3.10 Dedicated monitor function 3.10.1 Dedicated monitor list Monitored item list The following functions can be set for a dedicated control monitor. Mitsubishi Modbus- Pr. 52 Setting inverter Pr. 54 (FM) Full-Scale Value of protocol Monitor Description Increments Pr.

  • Page 53: Terminal 1 Input Voltage Monitor

    Dedicated monitor function 3.10.2 Terminal 1 input voltage monitor Voltage applied to terminal 1 (dancer roll position) is displayed in a monitor by setting Pr. 52 = "26 or 27". It is only displayed in DU/PU main monitor and is not output to terminal FM/terminal AM. The displayed percentages [%] are the analog input values calibrated with Pr.

  • Page 54: Analog Output Signal For Dancer Tension Setting (Pr. 718, Pr. 719, Pr. 733, Pr. 734, Pr. 785, Pr. 787 To Pr. 789)

    Gain r < Pr. 788 Pr. 789 = "9999" Connection example When potentiometer is input Pr. 733 = "4" FR-A700-A1 Pr. 785 = "2" Pr. 787 = "9999" Main speed 2 (0 to 10V) Pr. 158 = "39" Dancer signal...
  • Page 55 Dedicated monitor function Tension adjustment (Pr.718, Pr.719) Dancer tension setting bias/gain Set 0% in Pr. 718 (tension setting bias). Pr. 719 (tension gain) Set 100% in Pr. 719 (tension setting gain). Pr. 718 (tension bias) 100% Tension setting Taper control Analog output signal for dancer tension setting Analog input set by the tension setting parameter (Pr.

  • Page 56: Regeneration Avoidance Function (Pr. 882)

    Regeneration avoidance function (Pr. 882) 3.11 Regeneration avoidance function (Pr. 882) This function detects a regeneration status and increases the frequency to avoid the regeneration status. Parameter Setting Initial Name Increments Remarks Number Range Value 0: Regeneration avoidance function disabled Regeneration avoidance 1: Always enabled 0 to 3...
  • Page 57 Operation command source and speed command source (Pr. 338, Pr. 339) Operation Pr. 338 Communication operation command source 0: NET 1: External Location Remarks Pr. 339 Communication speed command source 0 : NET 0 : NET Selection External External External External ...

  • Page 58: Tension Control

    4.2 System configuration example Middle shaft / speed control Minimum diameter Line speed detection Maximum diameter Reduction gear Encoder Encoder Line speed Vector control FR-A700-A1 FR-A700 FR-A7AP FR-A7AP Main speed command Start command Start command STF/STR STF/STR Dancer/tension control selection...

  • Page 59: Block Diagram Of The Control

    Block diagram of the control 4.3 Block diagram of the control 4.3.1 Block diagram of the tension control Winding Inertia compensation Winding diameter diameter Pr. 20, Pr. 713 to Pr. 716 calculation Line speed Pr. 720, Pr. 721, Pr. 756 to Pr. 759 Pr.

  • Page 60: Tension Control Parameter Setting Procedure

    Tension control parameter setting procedure 4.5 Tension control parameter setting procedure The following flowchart shows the parameter setting example for the tension control. Start Select a control method according to To perform tension control, set Pr. 800 = "6 (vector control)" or "16 (Real the application and the motor.
  • Page 61 Tension control parameter setting procedure Continued from the last page. Set winding diameters. Pr. 720 Maximum winding diameter 1 = "maximum winding diameter" Pr. 721 Minimum winding diameter 1 = "minimum diameter"(Refer to page 35.) Set a sampling time for the winding Extend the sampling time and diameter calculation.

  • Page 62: Details Of The Tension Control

    Details of the tension control 4.6 Details of the tension control POINT To use the tension control, set Pr. 800 = "6 (vector control)" or "16 (Real sensorless vector control)". Turn ON the X83 signal to activate the tension control. Tension control is unavailable while the X83 signal is OFF.
  • Page 63 Details of the tension control Initial winding diameter measurement (X91 signal, Y51 signal)  When resuming a winding operation with a medium-size-roll (not a bare roll) after a pause, the actual winding diameter is different from what is recognized by the inverter. The initial winding diameter must be set. For such a case, perform the initial winding diameter measurement with an external contact signal.

  • Page 64: Winding Taper Function (Pr. 717, Pr. 787, Pr. 788)

    Details of the tension control 4.6.2 Winding taper function (Pr. 717, Pr. 787, Pr. 788) Parameter Setting Initial Name Setting Range Remarks Number Increments Value Tension command cushion time 0 to 360s 0.01s Taper ratio setting 0 to 100%, 9999 0.1% 9999: Analog terminal input 9999: Starts tapering from the...

  • Page 65: Inertia Compensation Function (Pr. 713 To Pr. 716, X57 Signal, X58 Signal, X59 Signal)

    Details of the tension control Taper ratio input The input method of the taper ratio can be set by the following parameters. Pr. 787 Pr. 785 Pr. 733 Taper setting   0 to 100% Setting value of Pr. 787 ...
  • Page 66 Details of the tension control Operation/setting procedure  The acceleration torque amount is added while the acceleration inertia compensation signal (X57) is ON. The deceleration torque amount is subtracted while the deceleration inertia compensation signal (X58) is ON. Inertia compensation (acceleration) Torque command Inertia compensation (deceleration) Speed...

  • Page 67: Mechanical Loss Compensation (Pr. 739 To Pr. 749, Pr. 762)

    Details of the tension control 4.6.4 Mechanical loss compensation (Pr. 739 to Pr. 749, Pr. 762) Parameter Setting Initial Name Setting Range Remarks Number Increments Value Mechanical loss setting frequency bias 400 to 600% 500% Mechanical loss setting frequency 1 0 to 400Hz, 9999 0.01Hz 9999...

  • Page 68: Stall Operation Signal (Pr. 737, Pr. 738, Pr. 760, X92 Signal)

    Details of the tension control 4.6.5 Stall operation signal (Pr. 737, Pr. 738, Pr. 760, X92 signal) Turn ON the stall operation signal (X92) to bring the motor into the stall status and to apply tension to a sheet of paper to be winded.

  • Page 69: Tension Control Monitor Output (Pr. 52)

    Details of the tension control 4.6.6 Tension control monitor output (Pr. 52) The internally converted values during tension control can be output as monitored items to the PU/DU display. Set a value corresponding to the desired monitored item in Pr. 52. The selected monitored item is displayed on PU/DU instead of the voltage monitor.

  • Page 70: Application Example

    For the rolling shaft, use FR-A700-A1 series inverter with dancer control function. Keep the tension constant while rolling up the sheet of paper by stabilizing the position of dancer roll with dancer control.
  • Page 71 Dancer control with winding diameter compensation for printers Example 1 of FR-A700-A1 parameter setting FR-A700-A1 2 (0 to 10V) [Machine specification] Winding device (for paper) 1 (0 to 10V) Minimum diameter: 100mm, Maximum diameter: 1000mm 4 (0 to 10V) Gear ratio: 1/3 , Maximum line speed: 200m/min...
  • Page 72 Dancer control with winding diameter compensation for printers Initial Parameter Name Setting Description Value Initial winding diameter calculation Setting to reduce large dancer movement when shifting to normal 9999 operation after initial winding diameter calculation has completed. dead zone 2 Maximum winding diameter 1 1000mm Initial diameters (maximum value at unwinding shaft, minimum value at winding shaft) should be input accurately.

  • Page 73: Dancer Control With Winding Diameter Compensation For Wiredrawing Machine

    In a wiredrawing section, a wire is pulled at constant speed to be thinner. The wire is then winded with constant tension, which is regulated by dancer roll. For the winding shaft, dancer control of FR-A700-A1 series is used to keep the position of dancer roll and the tension constant.
  • Page 74 Dancer control with winding diameter compensation for wiredrawing machine Example 2 of FR-A700-A1 parameter setting [Machine specification] Winding shaft of wiredrawing machine Minimum diameter: 280mm, Maximum diameter: 400mm Gear ratio: 1/1.2 , Maximum line speed: 2000m/min Dancer signal: 0 to 10V input...
  • Page 75 Dancer control with winding diameter compensation for wiredrawing machine Initial Parameter Name Setting Description Value Especially, initial diameters (minimum value at winding shaft) Maximum winding diameter 1 400mm should be input accurately. Minimum winding diameter 1 280mm Less time than acceleration/deceleration of main speed setting (terminal 2 to 5) is set.

  • Page 76: Tension Control For The Winding Operation Of Printers

    Outline The FR-A700-A1 series inverters are dedicated to winding machines. FR-A700-A1 controls the motor output torque to make paper tension constant. The winding diameter of a paper roll is calculated to perform such operation. Usually, the paper tension loosens when paper feeding speed to a printer is accelerated (decelerated). To make the paper tension constant, the acceleration (deceleration) torque, which is calculated based on the paper roll inertia, is used in controlling the motor.

  • Page 77: Appendix

    FR-A7AR FL-remote communication FR-A7NF 6.2 Differences from the standard inverter The following functions are added or deleted in the FR-A700-A1 series, compared to the FR-A700 series. Function Application to FR-A700-A1 series Adjustable 5 points V/F Pr. 100 to Pr. 109 are deleted.

  • Page 78: Parameter Change When Replacing Fr-A500-A1 With Fr-A700-A1

    Parameter change when replacing FR-A500-A1 with FR-A700-A1 6.3 Parameter change when replacing FR-A500-A1 with FR-A700-A1 Parameter Number Changed Items Parameter Setting Parameter Remarks Name FR-A500-A1 FR-A700-A1 Deleted Change Number Change PID action selection PID proportional band PID integral time For dancer signal 10V input, 500% setting is changed to 0% setting.

  • Page 79: Control Mode-Based Parameter (Function) Correspondence And Instruction Code

    Control mode-based parameter (function) correspondence and instruction code 6.4 Control mode-based parameter (function) correspondence and instruction code Refer to the table below for available functions under each control mode and the instruction codes of the parameters different from FR-A700 series standard inverter. Refer to the FR-A700 series Instruction Manual for available functions with the control mode and instruction code, which are not mentioned below.
  • Page 80 Control mode-based parameter (function) correspondence and instruction code Instruction Control Mode-based Correspondence Table Code Real Sensorless Advanced Vector Control Name Vector Control magnetic flux control Speed Torque Position Vector control control control Control    Fourth PID integral time ...
  • Page 81 Control mode-based parameter (function) correspondence and instruction code Instruction Control Mode-based Correspondence Table Code Real Sensorless Advanced Vector Control Name Vector Control magnetic flux control Speed Torque Position Vector control control control Control Mechanical loss setting     ...
  • Page 82 Control mode-based parameter (function) correspondence and instruction code Instruction Control Mode-based Correspondence Table Code Real Sensorless Advanced Vector Control Name Vector Control magnetic flux control Speed Torque Position Vector control control control Control Winding diameter storage     ...

  • Page 83: Index

    Index 6.5 Index Acceleration/deceleration time selection Main speed command by analog input ........44 (X51 signal, X52 signal) ..........16, 46, 56 Main speed command by terminal JOG single-phase pulse train Acceleration/deceleration time setting input (Pr. 384 to Pr. 386, Pr. 703, Pr. 704) .........45 (Pr.
  • Page 84 Index Target dancer position monitor ..........49 Target winding diameter achieved signal (Pr. 750, Y52 signal) ............17, 56 Tension command ..............49 Tension control monitor output (Pr. 52) ........66 Terminal 1 input voltage monitor .......... 49, 50 Winding diameter achieved signal (Pr. 750, Y52 signal) ... 48 Winding diameter calculation and compensation by winding diameter calculation ..............
  • Page 85 REVISIONS *The manual number is given on the bottom left of the back cover. Print Date *Manual Number Revision Nov. 2008 IB(NA)-0600372ENG-A First edition Jan. 2009 IB(NA)-0600372ENG-B Partial modification Addition Oct. 2012 IB(NA)-0600372ENG-C • Tension control function IB(NA)-0600372ENG-C...
  • Page 86 HEAD OFFICE: TOKYO BUILDING 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN IB(NA)-0600372ENG-C(1210)MEE Printed in Japan Specifications subject to change without notice.

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