8
BCN-C22005-957
• The fault output during emergency drive operation is as follows.
Input signal operation
• During emergency drive operation in the fixed frequency mode or in the PID control mode, input signals unrelated
to the emergency drive become invalid with some exceptions.
• The following table shows functions of the signals that do not become invalid during emergency drive operation
in the fixed frequency mode or in the PID control mode.
*1
The signal is available only for the FR-A800-LC.
Emergency drive status monitor
• Set "68" in
Pr.52, Pr.774 to Pr.776, Pr.992
to monitor the status of the emergency drive on the operation panel.
• Description of the status monitor
*1
The first digit remains the same as the previous numerical value (fault condition).
*2
"A certain alarm" means a protective function disabled during emergency drive shown in the tables on
page 7
.
Signal
Pr.190 to Pr.196 setting
Description
Positive
logic
Negative
logic
ALM
99
199
Turns ON at the occurrence of a fault that causes the above-mentioned "retry" or
"output shutoff" during emergency drive operation.
ALM3
66
166
Output when a fault occurs during emergency drive operation.
During emergency drive operation, if a fault that does not activate any protective
function occurs, the signal turns ON for 3 seconds and then turns OFF.
Input signal status
Fixed frequency mode
PID control mode
Valid
OH, X31
*1
, X32, X41
*1
, TRG, TRC, X51, RES,
X70, X71
OH, X31
*1
, X32, X41
*1
, TRG, TRC, X51, RES,
X70, X71
Held
RT, X9, X17, X18, MC, SQ, X84
RT, X9, X17, X18, MC, SQ, X64, X65, X66,
X67, X79, X84
Always-ON
—
X14, X77, X78, X80
Operation
panel
indication
Description
Emergency drive setting
Emergency drive operating status
0
Emergency drive function
setting is not available.
—
1
Electronic bypass during
emergency drive operation is
disabled.
During normal operation
2
Emergency drive in operation
Operating properly
3
A certain alarm is occurring.
*2
4
A critical fault is occurring. The operation is being
continued by the retry.
5
A critical fault is occurring. The continuous
operation is not allowed due to output shutoff.
11
Electronic bypass during
emergency drive operation is
enabled.
During normal operation
12
Emergency drive in operation
Operating properly
13
A certain alarm is occurring.
*2
14
A critical fault is occurring. The operation is being
continued by the retry.
15
A critical fault is occurring. The continuous
operation is not allowed due to output shutoff.
2[]
*1
Electronic bypass is started during emergency drive (during acceleration/
deceleration to the switchover frequency).
3[]
*1
During electronic bypass during emergency drive (waiting during the interlock time).
4[]
*1
During commercial power supply operation during emergency drive
CAUTION
• When the emergency drive operation is performed, the operation is continued or the retry is repeated even when
a fault occurs, which may damage or burn the inverter and motor. Before restarting the normal operation after
using this function, make sure that the inverter and motor have no fault. Any damage of the inverter or the motor
caused by using the emergency drive function is not covered by the warranty even within the guarantee period.
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