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5
5.2.5 Inverter communication settings
Congure communication parameters on the inverter parameter unit (PU) in advance before connecting the
inverter to the programmable controller. Be sure to perform the inverter reset after updating each parameter.
Communication setting details (required parameters)
The following table lists the parameters that must be congured.
Pr. Parameter Setting Contents of setting
Pr.117 PU communication station number 0 to 31 Up to 16 inverters can be connected
Pr.118 PU communication speed 48 4800bps
96 9600bps
192 19200bps
384 38400bps
Pr.119 PU communication stop bit length 10 Data length: 7 bits
Stop bit: 1 bit
Pr.120 PU communication parity check 2 Even parity
Pr.123 PU communication waiting time setting 9999 Congured with communication data
Pr.124 PU communication CR/LF selection 1 With CR, without LF
Pr.79 Operation mode selection 0 External operation mode when power is rst turned
on
Pr.549 Protocol selection 0 Mitsubishi inverter protocol (computer link)
Pr.340 Communication startup mode selection 1 or 10 1: Network operation mode
10: Network operation mode (the PU operation mode
and network operation mode can be changed
from the operation panel)