20
2) Pr. 501 "communication error occurrence count display"
The cumulative number of communication error occurrences can be indicated. Write 0 to erase this
cumulative count.
At the point of communication line fault occurrence, Pr. 501 "communication error occurrence count
display" is incremented by 1.
Parameter Number
Setting Range
Minimum Setting Increments
Factory Setting
501
0
1
0
CAUTION
The communication error occurrence count is stored into RAM temporarily. Since this data is
stored in E
2
PROM at one-hour intervals, performing power-on reset or inverter reset may cause
the Pr. 501 data to be the value stored in E
2
PROM the last time depending on the reset timing.
Normal
Abnormal
Count timing depending on
communication line status
Incremented by 1
Normal
Abnormal
Incremented by 1