Mitsubishi Electric FR-A800, Instruction Manual

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Appendix For customers using HMS network options
FR-A800 A - 45
Displaying and clearing the communication error count
The cumulative count of communication error occurrences can be displayed. Write "0" to clear this cu-
mulative count.
At the point of communication line error occurrence, Pr. 501 "Communication error occurrence count
display" is incremented by 1.
Error reset operation selection at inverter fault
An error reset command from the communication option can be invalidated in the External operation
mode or the PU operation mode.
Pr. Name Setting range
Minimum setting
increments
Initial value
501
Communication error occurrence
count display
0 1 0
I002852E
Fig. A-2: Communication error count
NOTE Communication error count is temporarily stored in the RAM memory. The error count is stored in
EEPROM only once per hour. If power reset or inverter reset is performed, Pr. 501 setting will be
the one that is last stored to EEPROM depending on the reset timing.
Pr. Name Initial value Setting range Description
349 Communication reset selection 0
0
Error reset is enabled independently
of operation mode
1
Error reset is enabled only in the
network operation mode
Normal Normal Error
Incremented by 1
Count timing depending on
communication line status
Error
Incremented by 1