5
BCN-C22005-957
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.
*1
Under PM sensorless vector control, the operation is not switched over to the commercial power supply operation and the output is
shut off.
NOTE
• The operation is automatically switched from the PU operation mode or External/PU combined operation mode to
the External operation mode when the emergency drive is activated in the fixed frequency mode or in the PID control
mode.
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 the retry count, and use
Pr.514 Emergency drive dedicated 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
the description of the retry function in the Instruction Manual (Detailed) or the Instruction Manual (Function).)
• For the protective functions (critical faults) for which a retry is performed during emergency drive operation, refer
to
page 7
.
NOTE
• During emergency drive operation,
Pr.65 Retry selection
is not available.
Pr.523
setting
Emergency drive operation mode
Description
1[][]
Output shutoff mode
Selecting operation
when a critical fault
occurs during
emergency drive
operation
Output shutoff at a critical fault occurrence.
2[][]
Retry / output shutoff mode
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.
3[][]
*1
Retry / commercial mode
Retry operation at a critical fault occurrence. (Electronic
bypass at the occurrence of a critical 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.
4[][]
*1
Commercial mode
The operation is switched over to the commercial power
supply operation when a critical fault occurs.
[]00
Normal operation
Selecting the operation
method during
emergency drive
operation
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.
[]11
Fixed
frequency
mode
Forward rotation
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 operation.
[]12
Reverse rotation
[]21
PID control
mode
Forward rotation
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
.
[]22
Reverse rotation
[]23
Forward rotation
(Second PID
measured value input)
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
.
[]24
Reverse rotation
(Second PID
measured value input)
9999
Emergency drive disabled.
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