MITSUBISHI ELECTRIC FR-S520 - Manual (Page 100)

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.10 Operation Selection Function Parameters
2
.10.1 Retry function
When any protective function (major fault) is activated and the inverter stops its
output, the inverter itself resets automatically and performs retries. You can
select whether retry is made or not, alarms reset for retry, number of retries
made, and waiting time.
Parameter Name
Factory
Setting
Setting
Range
Remarks
66 Retry selection 0 0 to 3
67
Number of
retries at alarm
occurrence
0
0, 1 to
10, 101
to 110
68
Retry waiting
time
1s
0.1 to
360s
69
Retry count
display erase
0 0
Setting is enabled when Pr. 30 = "1"
<Setting>
Use Pr. 66 to choose the protective functions (major failures) for retries.
Protective Functions (Major Failures) for Retries
Pr. 66 Setting
OCT OVT THM THT FIN GF OHT OLT PE PUE RET CPU OPT
0
1
2
3
* Indicates the retry items selected. (OCT denotes any of OC1 to OC3 and OVT
any of OV1 to OV3.)
Use Pr. 67 to set the number of retries at alarm occurrence.
Pr. 67 Setting Number of Retries Alarm Signal Output
0 Retry is not made. ———
1 to 10 1 to 10 times Not output every time *
101 to 110 1 to 10 times Output every time
* If the retry count is exceeded, " " (retry count excess) is displayed.
Use Pr. 68 to set the waiting time from when an inverter alarm occurs until a restart
in the range 0.1 to 360s.
Reading the Pr. 69 value provides the cumulative number of successful restart times
made by retry. The setting of "0" erases the cumulative number of times.