Mitsubishi Electric FR-D720-008 Instruction Manual page 72

4.3 Adjust the output torque (current) of the motor
4.3.1 Manual torque boost (Pr. 0, Pr. 46) .............................................................................................. 71
4.3.2 Large starting torque and low speed torque are necessary (General-purpose magnetic flux vector
control (Pr. 71, Pr. 80)) ................................................................................................................. 73
4.3.3 Slip compensation (Pr. 245 to Pr. 247)......................................................................................... 76
4.3.4 Stall prevention operation (Pr. 22, Pr. 23, Pr. 48, Pr. 66, Pr. 156, Pr. 157) .................................. 77
4.4 Limit the output frequency
4.4.1 Maximum/minimum frequency (Pr. 1, Pr. 2, Pr. 18)...................................................................... 81
4.4.2 Avoid mechanical resonance points (frequency jumps) (Pr. 31 to Pr. 36).................................... 82
4.5 Set V/F pattern
4.5.1 Base frequency, voltage (Pr. 3, Pr. 19, Pr. 47) ............................................................................. 83
4.5.2 Load pattern selection (Pr. 14) ..................................................................................................... 85
4.6 Frequency setting by external terminals
4.6.1 Operation by multi-speed operation (Pr. 4 to Pr. 6, Pr. 24 to Pr. 27, Pr. 232 to Pr. 239).............. 87
4.6.2 Jog operation (Pr. 15, Pr. 16) ....................................................................................................... 89
4.6.3 Remote setting function (Pr. 59) ................................................................................................... 91
4.7 Setting of acceleration/deceleration time and acceleration/
deceleration pattern
4.7.1 Setting of the acceleration and deceleration time
(Pr. 7, Pr. 8, Pr. 20, Pr. 44, Pr. 45) .............................................................................................. 94
4.7.2 Starting frequency and start-time hold function (Pr. 13, Pr. 571).................................................. 96
4.7.3 Acceleration/deceleration pattern (Pr. 29) .................................................................................... 97
4.8 Selection and protection of a motor
4.8.1 Motor overheat protection (Electronic thermal O/L relay, PTC thermistor protection) (Pr. 9, Pr. 51,
Pr. 561) ......................................................................................................................................... 98
4.8.2 Applied motor (Pr. 71, Pr. 450) ................................................................................................... 101
4.8.3 To exhibit the best performance of the motor (offline auto tuning)
(Pr. 71, Pr. 80, Pr. 82 to Pr. 84, Pr. 90, Pr. 96)........................................................................... 103
4.9 Motor brake and stop operation
4.9.1 DC injection brake (Pr. 10 to Pr. 12)........................................................................................... 107
4.9.2 Selection of a regenerative brake (Pr. 30, Pr. 70) ...................................................................... 108
4.9.3 Stop selection (Pr. 250) .............................................................................................................. 110
4.10 Function assignment of external terminal and control
4.10.1 Input terminal function selection (Pr. 178 to Pr. 182).................................................................. 111
4.10.2 Inverter output shutoff signal (MRS signal, Pr. 17) ..................................................................... 113
4.10.3 Condition selection of function validity by second function selection signal (RT) ....................... 114
4.10.4 Start signal operation selection (STF, STR, STOP signal, Pr. 250) ........................................... 115
4.10.5 Output terminal function selection (Pr. 190, Pr. 192).................................................................. 117
4.10.6 Detection of output frequency (SU, FU signal, Pr. 41 to Pr. 43) ................................................. 121
4.10.7 Output current detection function
(Y12 signal, Y13 signal, Pr. 150 to Pr. 153, Pr. 166, Pr. 167) .................................................... 122
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Parameters according to purposes
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98
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