Name: Mitsubishi Electric FR-E740 SC EC Series
Brand: Mitsubishi Electric
Rating: 4 (1 reviews)

Default Chapter11

Table of Contents11

1 Product Checking and Part Identification17

Parameter Overview145
Control Mode174
- Change the Control Method (Pr. 80, Pr. 81, Pr. 800)175
Adjust the Output Torque (Current) of the Motor177
- Manual Torque Boost (Pr. 0, Pr. 46)177
- Advanced Magnetic Flux Vector Control180
- General-Purpose Magnetic Flux Vector Control183
- Slip Compensation (Pr. 245 to Pr. 247)185
- Stall Prevention Operation186
Limit the Output Frequency194
- Maximum and Minimum Frequency (Pr. 1, Pr. 2, Pr. 18)194
- Avoid Mechanical Resonance Points (Frequency Jumps) (Pr. 31 to Pr. 36)196
Set V/F Pattern198
- Base Frequency, Voltage (Pr. 3, Pr. 19, Pr. 47)198
- Load Pattern Selection (Pr. 14)200
Frequency Setting by External Terminals202
- Multi-Speed Setting Operation202
  - (Pr. 4 to Pr. 6, Pr. 24 to Pr. 27, Pr. 232 to Pr. 239)202
- Jog Operation (Pr. 15, Pr. 16)205
- Remote Setting Function (Pr. 59)209
Acceleration and Deceleration213
- Acceleration and Deceleration Time213
- Starting Frequency and Start-Time Hold Function (Pr. 13, Pr. 571)217
- Acceleration and Deceleration Pattern (Pr. 29)219
- Shortest Acceleration/Deceleration (Automatic Acceleration/Deceleration)221
  - (Pr. 61 to Pr. 63, Pr. 292, Pr. 293)221
Selection and Protection of a Motor224
- Motor Overheat Protection (Electronic Thermal O/L Relay) (Pr. 9, Pr. 51)224
- Applied Motor (Pr. 71, Pr. 450)229
  - (Offline Auto Tuning) (Pr. 71, Pr. 80 to Pr. 84, Pr. 90 to Pr. 94, Pr. 96, Pr. 859)232
Motor Brake and Stop Operation242
- DC Injection Brake (Pr. 10 to Pr. 12)242
- Selection of a Regenerative Brake (Pr. 30, Pr. 70)245
- Stop Selection (Pr. 250)247
- Stop-On Contact Control Function249
- Brake Sequence Function (Pr. 278 to Pr. 283, Pr. 292)253
Function Assignment of External Terminals258
- Input Terminal Function Selection (Pr. 178 to Pr. 184)258
- Inverter Output Shutoff Signal (MRS Signal, Pr. 17)261
- Condition Selection of Function Validity by Second Function Selection Signal263
  - (RT, Pr. 155)263
- Start Signal Selection (Terminal STF, STR, STOP, Pr. 250)264
- Output Terminal Function Selection (Pr. 190 to Pr. 192)268
- Detection of Output Frequency (SU, FU, Pr. 41 to Pr. 43)273
- Output Current Detection Function (Y12, Y13, Pr. 150 to Pr. 153)275
- Remote Output Function (REM, Pr. 495 to Pr. 497)277
Monitor Display and Monitor Output Signals280
- Speed Display and Speed Setting (Pr. 37)280
- Monitor Display Selection of DU/PU and Terminal am282
- Reference of the Terminal am (Analog Voltage Output) (Pr. 55, Pr. 56)290
- Terminal am Calibration [Calibration Parameter Pr. 645, C1 (Pr. 901)]292
Operation Selection at Power Failure295
- Automatic Restart295
- Power Failure-Time Deceleration-To-Stop Function (Pr. 261)307
Operation Setting at Alarm Occurrence311
- Retry Function (Pr. 65, Pr. 67 to Pr. 69)311
- Input/Output Phase Failure Protection Selection (Pr. 251, Pr. 872)314
- Earth (Ground) Fault Detection at Start (Pr. 249)315
Energy Saving Operation316
- Optimum Excitation Control (Pr. 60)316
Motor Noise, EMI Measures, Mechanical Resonance317
- PWM Carrier Frequency and Soft-PWM Control (Pr. 72, Pr. 240)317
- Speed Smoothing Control (Pr. 653)318
Frequency Setting by Analog Input (Terminal 2, 4)319
- Analog Input Selection (Pr. 73, Pr. 267)319
- Input Filter Time Constant (Pr. 74)324
- Bias and Gain of Frequency Setting Voltage (Current)325
  - [Pr. 125, Pr. 126, Pr. 241, C2 (Pr. 902) to C7 (Pr. 905)]325
Misoperation Prevention and Parameter Setting Restriction332
- Reset Selection/Disconnected PU Detection/Pu Stop Selection (Pr. 75)332
- Parameter Write Selection (Pr. 77)337
- Reverse Rotation Prevention Selection (Pr. 78)339
- User Groups (Pr. 160, Pr. 172 to Pr. 174)340
- Password Function (Pr. 296, Pr. 297)343
Selection of Operation Mode and Operation Location348
- Operation Mode Selection (Pr. 79)348
- Operation Mode at Power on (Pr. 79, Pr. 340)360
- Start Command Source and Frequency Command Source During Communication Operation (Pr. 338, Pr. 339, Pr. 550, Pr. 551)362
Communication Operation and Setting371
- PU Connector371
- Initial Settings and Specifications of RS-485 Communication376
- Communication E²PROM Write Selection (Pr. 342)382
- Mitsubishi Inverter Protocol (Computer Link Communication)383
- Modbus-RTU Communication402
- USB Communication (Pr. 547, Pr. 548)420
Special Operation421
- PID Control (Pr. 127 to Pr. 134)421
- Dancer Control (Pr. 44, Pr. 45, Pr. 128 to Pr. 134)433
- Droop Control (Pr. 286 to Pr. 287)441
- Regeneration Avoidance Function442
Useful Functions445
- Cooling Fan Operation Selection (Pr. 244)445
- Display of the Life of the Inverter Parts (Pr. 255 to Pr. 259)446
- Maintenance Timer Alarm (Pr. 503, Pr. 504)451
- Current Average Value Monitor Signal (Pr. 555 to Pr. 557)452
- Free Parameters (Pr. 888, Pr. 889)456
Setting for the Parameter Unit, Operation Panel457
- RUN Key Rotation Direction Selection (Pr. 40)457
- PU Display Language Selection (Pr. 145)457
- Operation Panel Frequency Setting/Key Lock Operation Selection (Pr. 161)458
- Magnitude of Frequency Change Setting (Pr. 295)459
- Buzzer Control (Pr. 990)460
- PU Contrast Adjustment (Pr. 991)460

7 Troubleshooting461

8 Maintenance and Inspection497

A Appendix511

Mitsubishi Electric FR-E740 SC EC Series User Manual

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Mitsubishi Electric FR-E740 SC EC Series Specifications

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Brand	Mitsubishi Electric
Model	FR-E740 SC EC Series
Category	Inverter
Language	English