Freqrol-F700P/A700 Series - Mitsubishi Electric FX5 User Manual

FREQROL-F700P/A700 series

Connection destination: Built-in RS-485 terminal
Contents of communication setting (essential items)
The table below shows parameters which should be set in all cases.
Parameter No. Parameter item
Pr.331 RS-485 communication station
Pr.332 RS-485 communication speed
Pr.333 RS-485 communication stop bit
length
Pr.334 RS-485 communication parity check
selection
Pr.337 RS-485 communication waiting time
setting
Pr.341 RS-485 communication CR/LF
selection
Pr.79 Operation mode selection
Pr.549 Protocol selection
Pr.340 Communication startup mode
selection
Parameters (test operation, operation)
Parameters that must be adjusted for test operation and operation are as follows.
Parameter No. Parameter item
Pr.335 RS-485 communication number of
retries
Pr.336 RS-485 communication check time
interval
■Cautions during Setting
Caution for setting the RS-485 communication check time interval (Pr.336)
Description
During adjustment or when communication with the PLC is not executed
periodically
When communication with the PLC is not executed
Set the communication time in the following cases.
• When it is necessary to monitor absence of communication for a certain
time and stop the inverter in such a case while communication with the PLC
is being executed continuously
• When it is necessary to stop the motor at the point when the PLC mode is
changed from RUNSTOP
4 INVERTER COMMUNICATION
92
4.6 Inverter Communication Settings
Setting Set conditions
value
0 to 31 Up to 16 inverters can be connected.
48 4800 bps
96 9600 bps
192 19200 bps
384 38400 bps
10 Data length: 7 bits
Stop bit: 1 bit
2 Even
9999 Set in communication data
1 CR: Provided, LF: Not provided
0 External operation mode is selected when power is turned ON.
0 Mitsubishi inverter (computer link) protocol
1 Network operation mode
Setting Set conditions
value
9999 Set the value shown on the left during adjustment, and set a value from 1 to
10 during operation.
9999 Set the value shown on the left during adjustment, and set a value in
accordance with the system specification during operation.
Setting value
9999
0
1 to 9998