Mitsubishi Electric FR-E720-600 Instruction Manual page 76

operation (Pr. 338, Pr. 339, Pr. 550, Pr. 551) ............................................................................. 194
4.20 Communication operation and setting
4.20.1 Wiring and configuration of PU connector .................................................................................. 200
4.20.2 Initial settings and specifications of RS-485 communication
(Pr. 117 to Pr. 120, Pr. 123, Pr. 124, Pr. 549) ............................................................................ 203
4.20.3 Operation selection at communication error occurrence (Pr. 121, Pr. 122, Pr. 502) .................. 204
4.20.4 Communication EEPROM write selection (Pr. 342) ................................................................... 207
4.20.5 Mitsubishi inverter protocol (computer link communication) ....................................................... 208
4.20.6 Modbus RTU communication specifications
(Pr. 117, Pr. 118, Pr. 120, Pr. 122, Pr. 343, Pr. 502, Pr. 549) .................................................... 220
4.20.7 USB communication (Pr. 547, Pr. 548)....................................................................................... 233
4.21 Special operation and frequency control
4.21.1 PID control (Pr. 127 to Pr. 134) .................................................................................................. 234
4.21.2 Dancer control (Pr. 44, Pr. 45, Pr. 128 to Pr. 134)...................................................................... 241
4.21.3 Droop control (Pr. 286 to Pr. 287) .............................................................................................. 247
4.21.4 Regeneration avoidance function (Pr. 665, Pr. 882, Pr. 883, Pr. 885, Pr. 886).......................... 248
4.22 Useful functions
4.22.1 Cooling fan operation selection (Pr. 244) ................................................................................... 250
4.22.2 Display of the life of the inverter parts (Pr. 255 to Pr. 259)......................................................... 251
4.22.3 Maintenance timer alarm (Pr. 503, Pr. 504)................................................................................ 255
4.22.4 Current average value monitor signal (Pr. 555 to Pr. 557) ......................................................... 256
4.22.5 Free parameter (Pr. 888, Pr. 889) .............................................................................................. 258
4.23 Setting from the parameter unit and operation panel
4.23.1 RUN key rotation direction selection (Pr. 40).............................................................................. 259
4.23.2 PU display language selection(Pr.145)....................................................................................... 259
4.23.3 Operation panel frequency setting/key lock operation selection (Pr. 161).................................. 260
4.23.4 Magnitude of frequency change setting (Pr. 295)....................................................................... 262
4.23.5 Buzzer control (Pr. 990).............................................................................................................. 263
4.23.6 PU contrast adjustment (Pr. 991) ............................................................................................... 263
4.24 Parameter clear/ All parameter clear
4.25 Initial value change list
4.26 Check and clear of the faults history
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