Mitsubishi Electric FR-E8TR Instruction Manual page 38

Pr.
121
Number of PU communication retries
N025
122
PU communication check time interval
N026
123
PU communication waiting time setting
N027
124
PU communication CR/LF selection
N028
343
Communication error count
N080
390
% setting reference frequency
N054
549
Protocol selection
N000
38
OPERATION VIA COMMUNICATION FROM RS-485 TERMINALS
Initial
Name
value
1
0
9999
1
0
60 Hz /
50 Hz
0
Setting range
Set the permissible number of retries for
unsuccessful data reception. If the number of
0 to 10
consecutive errors exceeds the permissible
value, the inverter output is shut off.
The inverter output will not be shut off even
9999
when a communication error occurs.
RS-485 communication is enabled. However, the
inverter output is shut off if the operation mode is
0
changed to the one for the selected command
interface.
Set the interval of the communication check
(signal loss detection) time.
0.1 to 999.8 s If a no-communication state persists for longer
than the permissible time, the inverter output will
be shut off.
9999 No communication check (signal loss detection)
Set the waiting time between data transmission
0 to 150 ms
to the inverter and the response.
Set with communication data.
9999
Waiting time: setting data × 10 ms
0 Without CR/LF
1 With CR
2 With CR/LF
Displays the communication error count during
(0 to 999)
MODBUS RTU communication. (Read-only)
1 to 590 Hz Set a reference frequency of the set frequency.
*4
0 Mitsubishi inverter protocol (computer link)
1 MODBUS RTU protocol
2 BACnet MS / TP protocol
Description