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IV
4.13.3 Input/output phase loss protection selection (Pr. 251, Pr. 872) ............................................ 162
4.14 Energy saving operation and energy saving monitor ................................. 163
4.14.1 Energy saving control and Optimum excitation control (Pr. 60)............................................ 163
4.14.2 Energy saving monitor (Pr. 891 to Pr. 899) .......................................................................... 164
4.15 Motor noise, EMI measures, mechanical resonance ................................... 169
4.15.1 PWM carrier frequency and Soft-PWM control (Pr. 72, Pr. 240, Pr. 260)............................. 169
4.15.2 Speed smoothing control (Pr. 653, Pr. 654) ......................................................................... 170
4.16 Frequency setting by analog input (terminal 1, 2, 4) ................................... 171
4.16.1 Analog input selection (Pr. 73, Pr. 267) ................................................................................ 171
4.16.2 Analog input compensation (Pr. 73, Pr. 242, Pr. 243, Pr. 252, Pr. 253)............................... 175
4.16.3 Response level of analog input and noise elimination (Pr. 74)............................................. 176
4.16.4 Bias and gain of frequency setting voltage (current)
(Pr. 125, Pr. 126, Pr. 241, C2(Pr. 902) to C7(Pr. 905)) ........................................................ 177
4.16.5 4mA input check of current input (Pr. 573, Pr. 777, Pr. 778) ................................................ 182
4.17 Misoperation prevention and parameter setting restriction ....................... 186
4.17.1 Reset selection/disconnected PU detection/PU stop selection (Pr. 75) ............................... 186
4.17.2 Parameter write selection (Pr. 77) ........................................................................................ 189
4.17.3 Reverse rotation prevention selection (Pr. 78) ..................................................................... 190
4.17.4 Display of applied parameters and user group function (Pr. 160, Pr. 172 to Pr. 174) .......... 190
4.17.5 Password function (Pr. 296, Pr. 297).................................................................................... 192
4.18 Selection of operation mode and operation location .................................. 195
4.18.1 Operation mode selection (Pr. 79)........................................................................................ 195
4.18.2 Operation mode at power ON (Pr. 79, Pr. 340) .................................................................... 203
4.18.3 Start command source and speed command source during
communication operation (Pr. 338, Pr. 339, Pr. 550, Pr. 551).............................................. 204
4.19 Communication operation and setting.......................................................... 209
4.19.1 Wiring and configuration of PU connector ............................................................................ 209
4.19.2 Wiring and arrangement of RS-485 terminals ...................................................................... 211
4.19.3 Initial settings and specifications of RS-485 communication
(Pr. 117 to Pr. 124, Pr. 331 to Pr. 337, Pr. 341, Pr. 549)...................................................... 214
4.19.4 Communication EEPROM write selection (Pr. 342) ............................................................. 216
4.19.5 Operation selection at communication error (Pr.502, Pr.779) .............................................. 216
4.19.6 Mitsubishi inverter protocol (computer link communication) ................................................. 219
4.19.7 Modbus-RTU communication specifications
(Pr. 331, Pr. 332, Pr. 334, Pr. 343, Pr. 502, Pr. 539, Pr. 549, Pr.779).................................. 232
4.19.8 BACnet MS/TP protocol........................................................................................................ 247
4.19.9 Operation by PLC function
(Pr. 414, Pr. 415, Pr. 498, Pr. 506 to Pr. 515, Pr. 826 to Pr. 865) ........................................ 260
4.20 PID control ....................................................................................................... 261
4.20.1 Outline of PID control (Pr. 127 to Pr. 134, Pr. 241, Pr. 553, Pr. 554,
Pr. 575 to Pr. 577) ................................................................................................................ 261