Mitsubishi Electric FR-E700 Instruction Manual page 389

Parameter
Operation selection at communication error occurrence (Pr. 121, Pr. 122, PR. 349, Pr. 501, Pr. 502)
Initial
Pr. No. Name
Value
Number of PU
121
communication 1
retries
PU communication
122
0
check time interval
Communication
349
0
reset selection
Communication
501
error occurrence
0
count display
Stop mode
selection at
502
0
communication
error
The above parameters can be set for the FR-E700 SC EC when Pr. 160 "User group read selection" = 0.
However, it can be set any time when the communication option is connected. (Refer to section
6.17.4.)
This setting is only available for the FR-E700 SC ENE.
FR-E700 SC EC/ENE
Setting
Description
Range
Number of retries at data receive error occurrence
If the number of consecutive errors exceeds the permissible value, the
0–10
inverter will come to trip (depends on Pr. 502).
Valid only Mitsubishi inverter (computer link operation) protocol
9999 If a communication error occurs, the inverter will not come to trip.
RS-485 communication can be made. Note that a communication fault
0 (E.PUE) occurs as soon as the inverter is switched to the operation mode
with command source.
0.1 Communication check (signal loss detection) time interval
– If a no-communication state persists for longer than the permissible time,
999.8 s the inverter will come to trip (depends on Pr. 502).
9999 No communication check (signal loss detection)
0 Enables the error reset function in any operation mode.
1 Enables the error reset function only in the Network operation mode.
Displays the communication error occurrence count. Writing "0" in this
0
parameter clears the cumulative count.
0–3 Selects the inverter operation after occurrence of a communication fault.
Communication operation and setting
Parameters referred to
7 Acceleration time
8 Deceleration time
79 Operation mode
selection
190–192 Output terminal
function selection
340 Communication startup
mode selection
Refer to
Section
6.7.1
6.7.1
6.18.1
6.10.5
6.18.2
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