Mitsubishi Electric 800 Series Instruction Manual page 244

 Retry count check (Pr.69)
• Reading the Pr.69 value provides the cumulative number of successful restart times made by retries. The cumulative count
in Pr.69 increases by 1 when a retry is successful. Retry is regarded as successful when normal operation continues
without a fault for the Pr.68 setting multiplied by four or longer (3.1 s at the shortest). (When retry is successful, the
cumulative number of retry failures is cleared.)
• Writing "0" in Pr.69 clears the cumulative count.
Pr. 68 × 4
Pr.68
(If it is below 3.1 s, 3.1 s is set.)
Inverter
output
frequency
0
Retry start
Fault occurrence
Retry success count
Y64 ON
Retry success example
Retry success
Inverter
output
frequency
Time
Success count + 1
Fault signal
(ALM)
Y64
Pr.68 Pr.68
0
First Second
retry retry
Fault Fault Fault
occurrence occurrence occurrence
ON ON
Retry failure example
5.7 (H) Protective function parameter
Pr.68
Time
Third
retry
Retry failure
(E.RET)
ON
ON
5. PARAMETERS
3
4
5
5
5
6
7
8
9
10
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