Mitsubishi Electric FR-A700 Instruction Manual page 532

Operation setting at alarm occurrence
Retry operation automatically resets an alarm and restarts the inverter at the starting frequency
when the time set in Pr. 68 elapses after the inverter stopped due to the alarm.
Retry operation is performed by setting Pr. 67 to any value other than "0". Set the number of
retries at alarm occurrence in Pr. 67.
When retries fail consecutively more than the number of times set to Pr. 67, a retry count excess
alarm (E.RET) occurs, stopping the inverter output. (Refer to retry failure example in Fig. 6-170.)
Use Pr. 68 to set the waiting time from when an inverter alarm occurs until a retry is made in the
range 0 to 10s.
Reading the Pr. 69 value provides the cumulative number of successful restart times made by
retry. The cumulative count in Pr. 69 is increased by 1 when a retry is regarded as successful
after normal operation continues without alarms occurring for more than four times longer than
the time set in Pr. 68 after a retry start. Writing "0" to Pr. 69 clears the cumulative count.
During a retry, the Y64 signal is on. For the Y64 signal, assign the function by setting "64"
(source operation) or "164" (sink operation) to any of Pr. 190 to Pr. 196 "Output terminal function
selection".
NOTE
When terminal assignment is changed using Pr. 190 to Pr.196, the other functions may be
affected. Please make setting after confirming the function of each terminal.
Fig. 6-169: Retry success example
Fig. 6-170: Retry failure example
6 - 352
Output frequency
Alarm occurrence
Retry success count
Output frequency
First
retry
Alarm
occurrence
Alarm signal
Retry success
Pr. 68 × 5
Retry start
Second Third
retry retry
Alarm Alarm
occurrence occurrence
Parameter
Time
Success count + 1
I001178E
Time
Retry failure E.RET
I001179E