Mitsubishi Electric FR-A800, Instruction Manual

Page: 488 / 1042

(H) Protective function parameter Parameters
5 - 308
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.
Selecting retry generating faults (Pr. 65)
Using Pr. 65, you can select the fault that will cause a retry. No retry will be made for the fault not in-
dicated. (For the fault details, refer to page 6-9.)
"
 " indicates the faults selected for retry.
I002589E
Fig. 5-135: Retry success and retry failure example
Tab. 5-119: Errors selected for retry
0
Y64
0
Y64
Retry success
Pr. 68 x 4
Pr. 68
(If it is below 3.1s, 3.1s is set.)
Inverter
output
frequency
Retry start
Fault occurrence
Retry success count
Success count + 1
Time
Inverter
output
frequency
Retry success example Retry failure example
Pr. 68
Pr. 68 Pr. 68
Time
First
retry
Second
retry
Third
retry
Retry failure
(E.RET)
Fault
occurrence
Fault
occurrence
Fault
occurrence
Fault signal
(ALM)
ON ON ON ON
ON
Retry
generating
fault
Pr. 65 setting
0 1 2 3 4 5
E.OC1
    
E.OC2
   
E.OC3
    
E.OV1
   
E.OV2
   
E.OV3
   
E.THM

E.THT

E.IPF
 
E.UVT
 
E. BE
 
E. GF
 
E.OHT

E.OLT
 
E.OPT
 
E.OP3
 
E. PE
 
E.MB1
 
E.MB2
 
E.MB3
 
E.MB4
 
E.MB5
 
E.MB6
 
E.MB7
 
E.OS
 
E.OSD
 
E.PTC

E.CDO
 
E.SER
 
E.USB
 
E.ILF
 
E.PID
 
E.PCH
 
E.SOT
    
E.LCI
 
Retry
generating
fault
Pr. 65 setting
0 1 2 3 4 5