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Mitsubishi Electric FR-A720-55K, Instruction Manual

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Mitsubishi Electric FR-A720-55K Instruction Manual Download Page 39

34

MOTOR THERMISTOR INTERFACE

6.3.4 Thermistor calibration (C29)

Perform calibration of the inverter and FR-A7AZ (thermistor interface) at installation, before starting the
motor.

(1) Calibration method

1) Set the thermistor calibration status switch (SW2) to the line to place the FR-A7AZ in the calibration status.

2)Read 

C29 (Pr. 925)

  and set the compensation value.

⋅

Compensation using the operation panel (FR-DU07)

 

refer to page 35

⋅

Compensation using the parameter unit (FR-PU07) 

 refer to page 36

3)After compensation, reset the thermistor calibration status switch (SW2) to the original position.

CAUTION

⋅

Calibration must be performed at installation.

CAUTION

⋅

Always return the SW2 to the original position after calibration. Starting the motor in the calibration status 
results in motor overload trip (E.THM), shutting off the inverter output.

SW2

SW1

SW3

1

2

O

N

1

2

O

N

FR-A7AZ

SW2

SW2

Summary of Contents for FR-A720-55K

Page 1: ...on 6 FR A7AZ Bipolar analog output function High resolution analog input function Motor thermistor interface INSTALLATION AND WIRING PARAMETER LIST BIPOLAR ANALOG OUTPUT PRE OPERATION INSTRUCTIONS HIGH RESOLUTION ANALOG INPUT MOTOR THERMISTOR INTERFACE ...

Page 2: ...ety WARNING CAUTION CAUTION SAFETY INSTRUCTIONS WARNING While power is ON or when the inverter is running do not open the front cover You may get an electric shock Do not run the inverter with the front cover or wiring cover removed Otherwise you may access the exposed high voltage terminals and charging part and get an electric shock Even if power is OFF do not remove the front cover except for w...

Page 3: ...e inverter That includes screws and metal fragments or other flammable substances such as oil CAUTION Before starting operation each parameter must be confirmed and adjusted A failure to do so may cause some machines to make unexpected motions WARNING Do not modify the equipment Do not perform parts removal which is not instructed in this manual Doing so may lead to fault or damage of the inverter...

Page 4: ...confirmation 2 1 2 2 Parts 3 1 3 Compatible inverters 4 2 INSTALLATION AND WIRING 7 2 1 Pre installation instructions 7 2 2 Installation procedure 8 2 3 Wiring 10 3 PARAMETER LIST 14 4 BIPOLAR ANALOG OUTPUT 16 4 1 Connection diagram 16 4 2 Terminals 17 4 3 Bipolar analog outputting parameter 17 4 3 1 Parameter list 17 ...

Page 5: ...lection of terminal 6 function Pr 406 23 5 3 3 Calibration of terminal 6 Pr 148 Pr 149 Pr 846 to Pr 848 C30 to C37 25 5 4 Noise reduction techniques 28 5 5 Specifications 29 6 MOTOR THERMISTOR INTERFACE 30 6 1 Connection diagram 30 6 2 Terminals 31 6 3 Motor thermistor parameter 31 6 3 1 Parameter list 31 6 3 2 Thermistor setting 32 6 3 3 Activating the motor thermistor 33 6 3 4 Thermistor calibra...

Page 6: ...or each inverter type Refer to the Instruction Manual of each inverter for the inverter type For example for the 75K or higher indicates for the FR A740 01440 NA or higher in the case of FR A740 of NA version NA EC CH A700 FR A720 55K FR A720 02150 NA FR A720 75K FR A720 02880 NA FR A740 55K FR A740 01100 NA FR A740 01800 EC FR A740 55K CHT FR A740 75K FR A740 01440 NA FR A740 02160 EC FR A740 75K...

Page 7: ...rm that the product is as you ordered and intact This product is a plug in option dedicated for the FR A700 A701 series Refer to page 4 for details of compatible inverters 1 2 1 Product confirmation Check the enclosed items Plug in option 1 Mounting screw M3 6mm 2 Refer to page 8 Hex head screw for option mounting 5 5mm 1 Refer to page 8 5 5mm ...

Page 8: ...cturer setting SW3 Do not change from initially set status 1 2 OFF Switch for manufacturer setting SW1 Do not change from initially set status 1 2 ON Switch for thermistor calibration SW2 Change the setting when calibrating the thermistor 1 2 O N 1 All terminal 5 are connected internally 2 TST are not used Keep these open Accidental connection will damage the option 1 2 1 1 1 1 2 1 Mounting hole T...

Page 9: ...g plate or package Refer to the Inverter Manual for the location of the rating plate Rating plate example 6 7 Symbol Year Month Control number SERIAL Serial No The SERIAL consists of one symbol two characters indicating production year and month and six characters indicating control number The last digit of the production year is indicated as the Year and the Month is indicated by 1 to 9 X October...

Page 10: ...Type SERIAL Type SERIAL FR A740 0 4K 0 75K CHT M67 or later FR A740 185K to 250K CHT F67 or later FR A740 1 5K to 3 7K CHT N67 or later FR A740 280K CHT G67 or later FR A740 5 5K 7 5K CHT M67 or later FR A740 315K CHT F67 or later FR A740 11K to 22K CHT N67 or later FR A740 355K CHT D67 or later FR A740 30K to 55K CHT K67 or later FR A740 400K 450K CHT F67 or later FR A740 75K to 160K CHT G67 or l...

Page 11: ...ERIAL the first three digits FR A740 00023 to 00620 EC E67 or later FR A740 00770 to 12120 EC D67 or later V U W FR CA70 EC 67 SERIAL Control unit type SERIAL Month Serial number sticker example The SERIAL consists of one symbol two characters indicating production year and month and three characters indicating control number The last digit of the production year is indicated as the Year and the M...

Page 12: ...e input power of the inverter is off CAUTION With input power on do not install or remove the plug in option Otherwise the inverter and plug in option may be damaged Static electricity in your body must be discharged before you touch the product Otherwise the product may be damaged ...

Page 13: ...the inverter with the accessory mounting screws Tightening torque 0 33N m to 0 40N m If the screw holes do not line up the connector may not have been plugged securely Check for loose plugging REMARKS After removing two screws on the right and left places remove the plug in option When the plug in option is mounted in the connector 3 it is easier to remove the plug in option after removing a contr...

Page 14: ...inverter cannot recognize that the option is mounted due to improper installation etc to option alarm are displayed The errors shown differ according to the mounting positions connectors 1 2 3 Take care not to drop a hex head screw for option mounting or mounting screw during mounting and removal Pull out the option straight to remove Otherwise the connector may be damaged Mounting Position Error ...

Page 15: ...ductive area Strip off the sheath for the below length If the length of the sheath peeled is too long a short circuit may occur with neighboring wires If the length is too short wires might come off Wire the stripped cable after twisting it to prevent it from becoming loose In addition do not solder it Use a blade terminal as necessary Sheath Shield perform protective treatment Shielded twisted pa...

Page 16: ...ing Do not use a blade terminal of which the crimping is inappropriate or the face is damaged CAUTION The wiring length should be 30m maximum Blade terminal crimping tool CRIMPFOX 6T F 6 Phoenix Contact Co Ltd Terminal Screw Size Cable Size mm2 Blade Terminal Model Manufacturer With insulation sleeve Without insulation sleeve M2 0 3 0 5 AI 0 5 6WH A 0 5 6 Phoenix Contact Co Ltd Unstranded wires Da...

Page 17: ... Tightening Torque Cable Size Screwdriver M2 0 22N m to 0 25N m 0 3mm2 to 0 75mm2 Small flat blade screwdriver Tip thickness 0 4mm tip width 2 5mm CAUTION Undertightening can cause cable disconnection or malfunction Overtightening can cause a short circuit or malfunction due to damage to the screw or unit ...

Page 18: ... block REMARKS When the hook of the inverter front cover is cut off for wiring the protective structure JEM1030 changes to open type IP00 When performing wiring using the space between the inverter front cover and control circuit terminal block take caution not to subject the cable to stress After wiring wire offcuts must not be left in the inverter They may cause a fault failure or malfunction Cu...

Page 19: ...rence motor temperature 1 to 200 C 1 C 150 C 38 838 1 DA1 terminal function selection 1 to 3 5 to 14 17 18 21 24 32 to 34 36 46 50 52 53 1 2 16 839 1 DA1 output filter 0 to 5s 0 001s 0 05s 16 846 Torque bias balance compensation 0 to 10V 9999 0 1V 9999 21 847 Fall time torque bias terminal 1 bias 0 to 400 9999 1 9999 21 848 Fall time torque bias terminal 1 gain 0 to 400 9999 1 9999 21 857 1 DA1 0V...

Page 20: ...d 0 to 300 0 1 0 21 C32 927 2 Terminal 6 gain frequency speed 0 to 400Hz 0 01Hz 60Hz 50Hz 3 21 C33 927 2 Terminal 6 gain speed 0 to 300 0 1 100 21 C34 928 2 Terminal 6 bias command torque 0 to 400 0 1 0 21 C35 928 2 Terminal 6 bias torque 0 to 300 0 1 0 21 C36 929 2 Terminal 6 gain command torque 0 to 400 0 1 150 21 C37 929 2 Terminal 6 gain torque 0 to 300 0 1 100 21 Parameter Number Name Setting...

Page 21: ...lable with FR A7AZ Outputting 0 to 10VDC enables output frequency output voltage etc to be monitored with a DC voltage meter 4 1 Connection diagram MC R L1 Motor IM Inverter FR A7AZ S L2 T L3 U V W Three phase AC power supply MCCB Indicator DA1 5 0 to 10VDC ...

Page 22: ... unit FR PU07 FR PU04 Terminal Symbol Terminal Name Description DA1 Bipolar analog output terminal Connect a DC indicator 10VDC 5 Common terminal Common terminal of the DA1 Parameter Number Name Setting Range Minimum Increments Initial Value 838 1 DA1 terminal function selection 1 to 3 5 to 14 17 18 21 24 32 to 34 36 46 50 52 53 1 2 839 1 DA1 output filter 0 to 5s 0 001s 0 05s 857 1 DA1 0V adjustm...

Page 23: ...s for FR A7AY Refer to the Instruction Manual of the FR A7AY for details of Pr 309 and Pr 310 At this time check that the polarity is correct Terminal DA1 is plus Turn to adjust the indicator needle to deflect to full scale then press to set If the inverter is at a stop press the or to start the inverter Motor needs not be connected Setting 21 in Pr 838 outputs 10VDC to deflect the indicator needl...

Page 24: ...rminal DA1 Full Scale Value 1 1 Output frequency 0 01Hz Pr 55 2 Output current 0 01A 0 1A 2 Pr 56 3 Output voltage 0 1V 400V 800V 5 Frequency setting value 0 01Hz Pr 55 6 1 Running speed 1 r min Thevalueconverted with the Pr 37 value from Pr 55 7 3 Motor torque 0 1 Pr 866 8 Converter output voltage 0 1V 400V 800V 9 Regenerative brake duty 0 1 Pr 70 10 Electronic thermal relay function load factor ...

Page 25: ...the output voltage of the terminal DA1 can be adjusted between 0 and 5s with Pr 839 Increasing the setting stabilizes the terminal DA1 output more but reduces the response level REMARKS Response time of the terminal DA1 is a total of the set value in Pr 839 DA1 output filter and a variable up to 5ms ...

Page 26: ...agram 5 2 Terminals Terminal Symbol Terminal Name Description 6 High resolution input terminal Terminal for 0 to 10VDC high resolution 16 bits analog voltage input Use Pr 406 High resolution analog input selection to select terminal function Maximum permissible voltage 20VDC 5 Common terminal Common terminal of terminal 6 MC R L1 Motor IM Inverter FR A7AZ S L2 T L3 U V W Three phase AC power suppl...

Page 27: ...crements Initial Value 406 1 2 High resolution analog input selection 0 2 to 6 9999 1 9999 846 Torque bias balance compensation 0 to 10V 9999 0 1V 9999 847 Fall time torque bias terminal 1 bias 0 to 400 9999 1 9999 848 Fall time torque bias terminal 1 gain 0 to 400 9999 1 9999 C30 926 1 3 Terminal 6 bias frequency speed 0 to 400Hz 0 01Hz 0Hz C31 926 1 3 Terminal 6 bias speed 0 to 300 0 1 0 C32 927...

Page 28: ...eed limit Speed command and speed limit are not available with terminal 2 2 Regenerative torque limit Pr 810 1 Regenerative torque limit Pr 810 1 Regenerative torque limit is not available with terminal 1 3 Torque command Pr 804 0 Torque command is not available with terminal 1 4 Stall prevention operation level input Torque limit Pr 810 1 Torque command Pr 804 0 Torque limit Pr 810 1 Stall preven...

Page 29: ...t in Pr 406 terminal 6 is used for speed command and speed limit inputs and terminal 2 becomes invalid for those inputs Pr 242 Terminal 1 added compensation amount terminal 2 becomes valid for terminal 6 and compensation of terminal 6 input is made by terminal 1 input Pr 849 Analog input offset adjustment becomes valid for terminal 6 and terminal 6 input is provided with offset Refer to the Invert...

Page 30: ... Pr 928 Terminal 6 bias torque C36 Pr 929 Terminal 6 gain command torque C37 Pr 929 Terminal 6 gain torque Pr 826 Pr 836 4 Torque limit torque command C34 Pr 928 Terminal 6 bias command torque C35 Pr 928 Terminal 6 bias torque C36 Pr 929 Terminal 6 gain command torque C37 Pr 929 Terminal 6 gain torque Pr 826 Pr 836 Stall prevention operation level Pr 148 Stall prevention level at 0V input Pr 149 S...

Page 31: ...ol terminal 6 acts as torque command or torque limit input and C34 to C 37 are used for calibration parameters Gain C32 Pr 927 Bias C30 Pr 926 Input voltage 60Hz 60Hz Frequency Initial value 0 10V 10V C33 Pr 927 C31 Pr 926 Output torque Gain C36 Pr 929 Input voltage 150 150 0 10V Bias C34 Pr 928 Initial value 10V Output torque Gain C36 Pr 929 Input voltage 150 0 10V 10V Bias C34 Pr 928 Initial val...

Page 32: ...nt limit level Initial value 10V 10V Input voltage 0V 200 150 Current limit level at 10V input Pr 149 Current limit level at 0V input Pr 148 Bias amount Torque bias Gain C36 Pr 929 Input voltage 150 0 Voltage for max load Voltage for balanced load Pr 846 Torque bias Bias C34 Pr 928 Initial value When the motor runs in forward rotation direction Pr 840 1 at driving when the motor is in forward rota...

Page 33: ...f the FR A7AZ and common terminal of the analog command device Leave both terminal 5 of the FR A7AZ and common terminal of the analog command device open leave the shielded cable suspended Torque bias Bias C34 Pr 928 Pr 840 2 at regeneration when the motor is in forward rotation Fall time torque bias Gain Pr 848 Fall time torque bias Bias Pr 847 Bias amount Torque bias Gain C36 Pr 929 Input voltag...

Page 34: ... for the 3 7K or lower 5 5 Specifications Frequency setting resolution 0 01Hz 0 to 60Hz 10 to 10V 0 015Hz 0 to 60Hz when option is not mounted Torque setting resolution 0 024 0 to 100 10 to 10V 0 1 0 to 100 when option is not mounted Input resistance 10kΩ Maximum input voltage 20VDC CAUTION As changing the speed torque setting filter will affect the response level of the inverter to the command ad...

Page 35: ...or The motor temperature detection signal Y55 and the motor temperature monitor output are available in the FR A700 series inverters manufactured in December 2010 or later For how to find the SERIAL number refer to page 4 Torque accuracy is 3 6 1 Connection diagram When calibrating the thermistor change the thermistor calibration status switch Refer to page 34 CAUTION To detect temperature with FR...

Page 36: ...motor side thermistor output signal TH2 Thermistor input 2 SW2 Thermistor calibration status switch When calibrating at installation change the switch to place the inverter in calibration status Parameter Number Name Setting Range Minimum Increments Initial Value 407 Motor temperature detection filter 0 to 100s 9999 1 9999 408 Motor thermistor selection 0 1 1 0 750 Motor temperature detection leve...

Page 37: ...rface set Pr 408 Motor thermistor selection according to the motor type Its initial value is 0 SF V5RU T Set this parameter according to the motor Parameter Name Initial Value Minimum Setting Increments Setting Range Description 408 Motor thermistor selection 0 1 0 SF V5RU T 1 SF V5RU A ...

Page 38: ...s not occur during a stop 2 Slip compensation R2 compensation Slip compensation R2 compensation is available during vector control Slip frequencies are compensated according to temperatures detected by the thermistor CAUTION When operation is performed with the thermal protection function valid without a thermistor or in the calibration status protection function activates to shut off the inverter...

Page 39: ...the compensation value Compensation using the operation panel FR DU07 refer to page 35 Compensation using the parameter unit FR PU07 refer to page 36 3 After compensation reset the thermistor calibration status switch SW2 to the original position CAUTION Calibration must be performed at installation CAUTION Always return the SW2 to the original position after calibration Starting the motor in the ...

Page 40: ...7 99 8 flickers and 99 8 is set as compensation value The present setting at the instant of turning is displayed Turn Adjusting a compensation value as desired Select C29 in parameter setting mode 102 7 and C29 are alternately displayed then 102 7 is set as compensation value Present compensation command value is displayed Turn ...

Page 41: ...Current compensation command value Adjusting a compensation value as desired Input 99 2 using a numerical keypad 99 2 is set as compensation value 102 7 is set as compensation value SETTING MODE Pr No READ 925 0 Set WRITE 925 Ext READ 0 101 0 925 Ext 102 7 0 99 2 925 Ext 102 7 0 101 0 925 Ext 102 7 0 102 7 925 Completed 0 00 99 2 925 Completed ...

Page 42: ... Pr 319 DO0 to DO6 output function selections Refer to the Instruction Manual of FR A7AY for details Pr 320 to Pr 322 RA1 to RA3 output function selections Refer to the Instruction Manual of FR A7AR for details Use the following parameter to adjust the temperature to output the motor temperature detection signal Y55 Read write is enabled when using FR A7AZ Parameter Number Name Initial Value Minim...

Page 43: ... main display data selection Pr 54 FM CA terminal function selection Pr 158 AM terminal function selection Refer to the Instruction Manual of the inverter for details Pr 306 Analog output signal selection Pr 310 Analog meter voltage output selection Refer to the Instruction Manual of FR A7AY for details Pr 838 DA1 terminal function selection Refer to page 17 Set the following parameter to adjust t...

Page 44: ...07 9999 motor temperature monitor is not activated and the output remains 0 Pr 751 Terminal FM AM CA output Motor temperature 1440 pulses s 10V 20mA Setting range of Pr 751 10V 10V Terminal DA1 output Output from terminal FM AM CA Output from terminal DA1 Outputs 0 when motor temperature is below 0 C 50 C 200 C Motor temperature 200 C Pr 751 Setting range of Pr 751 ...

Page 45: ...t Date Manual Number Revision Jul 2006 IB NA 0600288ENG A First edition Dec 2011 IB NA 0600288ENG B Compatibility with the FR A701 series inverters Motor temperature detection signal Motor temperature monitor Screw tightening torque of the plug in option Addition IB NA 0600288ENG B ...

Page 46: ...INVERTER HEAD OFFICE TOKYO BUILDING 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN Printed in Japan Specifications subject to change without notice IB NA 0600288ENG B 1112 MEE ...

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