Mitsubishi Electric FR-CC2-P Instruction Manual page 100

Emergency drive operation selection (Pr.523)
Use Pr.523 Emergency drive mode selection to select the emergency drive operation.
Pr.523 setting
When a critical fault occurs, the RDA signal is turned OFF and the RDB signal is turned ON to
100
disable inverter operation.
Retry operation when a critical fault occurs. (When a critical fault for which retry is not
permitted occurs, the RDA signal is turned OFF and the RDB signal is turned ON to disable
200 inverter operation.) When a critical fault for which retry is not permitted occurs or when the
retry count is exceeded, the RDA signal is turned OFF and the RDB signal is turned ON to
disable inverter operation.
9999 Emergency drive disabled.
Retry operation during emergency drive (Pr.515, Pr.514)
• .Set the retry operation during emergency drive operation. Use Pr.515 Emergency drive dedicated retry count to set
theretry count, and use Pr.514 Emergency drive dedicated retry waiting time to set the retry waiting time.
• The ALM signal output conditions depend on the Pr.67 Number of retries at fault occurrence setting.
• For the protective functions (critical faults) for which a retry is performed during emergency drive operation, refer to
99.
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.514 setting multiplied by four or longer (3.1 seconds 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.514
(If it is below 3.1s, 3.1s is set.)
RDB OFF ON
RDA OFF
ON
Retry starts
Fault occurrence
Retry success count
Y64 ON
Retry success example
Operation of protective functions during emergency drive
• Operation of protective functions during emergency drive is as follows.
Protective
Operation during
function
emergency drive
E.OVT Retry
E.THC Retry
E.FIN Retry
E.IPF The function is disabled.
E.UVT The function is disabled.
E.ILF The function is disabled.
E.OHT Retry
E.OPT The function is disabled.

The output is shut off when one of the faults to shut off the output shown in the table occurs in a slave.

The output is shut off when the protection function is activated in the slave converter unit.
Retry success
Pr.514×4
OFF
ON
Time
Success count + 1
Fault signal
Protective
function
E.OP1
E.PA1
E.PA2
E.PE
E.PUE
E.RET
E.PE2
E.CPU
(H) Protective function parameter
Description
Pr.514 Pr.514
RDB OFF ON OFF ON
RDA ON OFF ON OFF
Second
First
retry
retry
Fault Fault
occurrence
occurrence
(ALM)
ON ON
Y64
Retry failure example
Operation during
emergency drive
The function is disabled. E.CTE
Retry or Output shutoff E.P24

Retry or Output shutoff E.IOH

Output shutoff E.SER
The function is disabled. E.PBT
Output shutoff E.5
Output shutoff E.6
E.7
Retry
E.13
Pr.514
OFF ON OFF
ON OFF ON
Time
Third
retry
Retry failure
(E.RET)
Fault
occurrence
ON
ON
Protective
Operation during
function
emergency drive
The function is disabled.
The function is disabled.
Output shutoff
Retry

Retry
Retry
Retry
Retry
Output shutoff
PARAMETER
page
5
GROUP
H
99