Mitsubishi Electric FR-F820-00046 Instruction Manual page 263

• The retry function is enabled when the Pr.67 setting is other than "0". Set the number of retries at activation of the protective
function in Pr.67.
Fault output during retry
Pr.67 setting
0 —
1 to 10 Not available
101 to 110 Available
• When retries fail consecutively more than the number of times set in Pr.67, a retry count excess (E.RET) occurs, resulting
in an inverter retries. (Refer to the Retry failure example.)
• Use Pr.68 to set the waiting time from a protective function activation to a retry in the range of 0.1 to 600 s.
• During retry operation, the During retry (Y64) signal is ON. For the Y64 signal, set "64 (positive logic)" or "164 (negative
logic)" in any of Pr.190 to Pr.196 (Output terminal function selection) to assign the function.
 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
(If it is below 3.1s, 3.1s is set.)
Inverter
output
frequency
0
Retry start
Fault occurrence
Retry success count
ON
Y64
Retry success example
 Selecting retry generating faults (Pr.65)
• Using Pr.65, the fault that causes a retry is selectable. No retry is made for the fault not indicated. (For the fault details,
refer to page 568.) ● indicates the faults selected for retry.
Retry-making
fault
0
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 ●
262
5. PARAMETERS
5.7 (H) Protective function parameter
Retry count
operation
No retry function
1 to 10 times
1 to 10 times
Retry success
Pr. 68 × 4
Time
Success count + 1
Pr.65 setting
1 2 3 4
● ● ●
● ● ●
● ● ●
● ● ●
● ● ●
● ● ●
●
●
●
●
●
●
Pr.68 Pr.68
Inverter
output
frequency
0
First
retry
Fault Fault
occurrence occurrence
Fault signal
(ALM)
ON
Y64
Retry failure example
Retry-making
fault
5
● E.OP1 ●
E. PE ●
● E.OS ●
E.PTC ●
E.CDO ●
E.SER ●
E.USB ●
E.ILF ●
E.PID ●
E.PCH ●
E.SOT ●
E.LCI ●
E.LUP ●
E.LDN ●
Pr.68
Time
Second Third
retry retry
Retry failure
Fault
(E.RET)
occurrence
ON
ON ON
Pr.65 setting
0 1 2 3
● ●
4 5
●
●
●
●
●
●
●
●
●
● ●
●
●
●