(A) Application parameters
Parameters
5 - 426
5.11.14
Power failure time deceleration-to-stop function
At instantaneous power failure or undervoltage, the motor can be decelerated to a stop or to the set
frequency for the re-acceleration.
Pr.
Name
Initial value
Setting
range
Description
FM
CA
261
A730
Power failure stop
selection
0
0
Power failure time deceleration-to-stop function
disabled
1, 2, 11, 12,
21, 22
Power failure time deceleration-to-stop function
enabled
Select action at an undervoltage or when a power
failure occurs.
262
A731
Subtracted frequency at
deceleration start
3 Hz
0 to 20 Hz
Normally, the motor runs at the initial value as it is.
However, adjust to suit the size of the load
specification (moment of inertia, torque).
263
A732
Subtraction starting
frequency
60 Hz 50 Hz
0 to 590 Hz
When output frequency
≥
Pr. 263
The motor decelerates from the "output frequency –
Pr. 262"
When output frequency < Pr. 263
Deceleration from the output frequency
9999
The motor decelerates from the "output frequency -
Pr. 262".
264
A733
Power-failure deceleration
time 1
5 s
0 to 3600
Set the slope applicable from the deceleration start to
the Pr. 266 set frequency.
265
A734
Power-failure deceleration
time 2
9999
0 to 3600
Set the slope applicable for the frequency range
starting at Pr. 266 and downward.
9999
Same as Pr. 264.
266
A735
Power failure deceleration
time switchover frequency
60 Hz 50 Hz 0 to 590 Hz
Set the frequency at which the slope during
deceleration switches from the Pr. 264 setting to the
Pr. 265 setting.
294
A785
UV avoidance voltage gain
100%
0 to 200%
Adjust the response at undervoltage avoidance
operation. Setting a large value improves the
response to changes in the bus voltage.
668
A786
Power failure stop
frequency gain
100%
0 to 200%
Adjust the response level for the operation where the
deceleration time is automatically adjusted.
606
T722
Power failure stop external
signal input selection
1
0
Normally open input (NO contact input specification)
1
Normally closed input (NC contact input
specification)
Summary of Contents for FR-F800
Page 2: ......
Page 4: ......
Page 28: ...Related manuals Introduction 1 8 ...
Page 104: ...Connection of stand alone option units Installation and wiring 2 76 ...
Page 162: ...Basic operation procedure JOG operation Basic operation 4 32 ...
Page 806: ...Outline dimension drawings Specifications 8 26 ...
Page 833: ......