Mitsubishi Electric FR-F820-00077 Instruction Manual page 343

Parameters
Emergency drive operation selection (Pr. 523, Pr. 524)
Use Pr. 523 "Emergency drive mode selection" to select the emergency drive operation. Set a value in
the hundreds place to select the operation when a valid protective function is activated (critical fault)
during emergency drive. Set values in the ones and tens places to select the operation method.
Pr. 523 setting
1
2
3
4
00
11
12
21
22
23
24
9999
Tab. 5-71:
Under PM motor control, the operation is not switched over to the commercial power supply
operation the output is shut off.
Retry operation during emergency drive (Pr. 515, Pr. 514)
● Set the retry operation during emergency drive operation. Use Pr. 515 "Emergency drive dedicat-
ed retry count" to set the retry 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. (Refer to page 5-164.)
● For the protective functions (critical faults) for which a retry is performed during emergency drive
operation, refer to page 5-174.
NOTE During emergency drive operation, Pr. 65 "Retry selection" is not available.
FR-F800
Emergency drive operation mode
Output shutoff mode
Retry / output shutoff mode
Retry / commercial mode
Commercial mode
Normal operation mode
Forward rotation
Fixed
frequency
Reverse rotation
mode
Forward rotation
Reverse rotation
Forward rotation
PID control
(Second PID measured
mode
value input)
Reverse rotation
(Second PID measured
value input)
Emergency drive disabled
Settings of Pr. 523
(H) Protective function parameter
Description
Output shutoff at a critical fault occurrence.
Retry operation at a critical fault occurrence. (Output
shutoff at the occurrence of a fault for which retry is not
permitted.)
The output is shut off when a critical fault for which retry is
not permitted occurs, or the retry count is exceeded.
Retry operation at a critical fault occurrence. (Electronic
bypass at the occurrence of a fault for which retry is not
permitted.)
The operation is switched over to the commercial power
supply operation when a critical fault for which retry is not
permitted occurs, or the retry count is exceeded.
While Pr. 515 = "9999", the operation is switched over to
the commercial power supply operation when the retry
count reaches 200.
The operation is switched over to the commercial power
supply operation when a critical fault occurs.
The operation is performed with the same set frequency
and by the same starting command as those in the normal
operation.
Use this mode to avoid output shutoff due to a fault.
The operation is forcibly performed with the frequency
set in Pr. 524.
Even when the motor is stopped, the operation is started
by the emergency drive execution.
The operation is performed under PID control using the
Pr. 524 setting as a set point. The measured values are
input in the method set in Pr. 128.
The operation is performed under PID control using the
Pr. 524 setting as a set point. The measured values are
input in the method set in Pr. 753.
5 - 171