
FREQROL Inverter Driver
GP-Pro EX Device/PLC Connection Manual
21
External Device Settings
Use the PU/EXT key, MODE key, M dial and SET key in the operation panel of the CPU unit for External Device
communication settings.
Refer to your External Device manual for details.
1 Turn ON the power supply.
2 Press PU/EXT key to select the PU operation mode.
3 Press MODE key to select the parameter setting mode.
4 Display the setting parameter number with M dial.
5 Press SET key to display the current setting value.
6 Set the setting value with M dial.
7 Press SET key to confirm the setting value.
Setting Parameter Number Setting Value Setup Description
331 0 RS-485 communication station
332 192 RS-485 communication speed
333 1 RS-485 communication stop bit length
334 2
RS-485 communication parity check
selection
335 1 RS-485 communication retry count
336 Any Except 0 RS-485 communication check time interval
337 9999
RS-485 communication waiting time
setting
341 1 RS-485 communication CR/LF selection
549 0 Protocol selection
• Always restart the Eternal Device after changing parameters.
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