Power Failure Time Deceleration-To-Stop Function; Connection And Parameter Setting - Mitsubishi Electric FR-F800 Instruction Manual

(A) Application parameters
5.11.13

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
261 Power failure stop
A730 selection
262 Subtracted frequency at
A731 deceleration start
263 Subtraction starting
A732 frequency
264 Power-failure
A733 deceleration time 1
265 Power-failure
A734 deceleration time 2
Power failure
266
deceleration time
A735
switchover frequency
294 UV avoidance voltage
A785 gain
668 Power failure stop
A786 frequency gain
Power failure stop
606
external signal input
T722
selection

When the Pr.21 Acceleration/deceleration time increments setting is "0" (initial value), the setting range is "0 to 3600 s" and the setting
increment is "0.1 s", and when it is "1", the setting range is "0 to 360 s" and the setting increment is "0.01 s".
Connection and parameter setting
Power supply
Remove the jumper
Connect terminals
R1/L11 and P/+
and terminals
S1/L21 and N/-.
• Remove the jumpers across terminal R/L1-R1/L11 and terminal S/L2-S1/L21, and connect terminal R1/L11 to terminal P/+,
and terminal S1/L21 to terminal N/-.
• If an undervoltage, power failure or input phase loss occurs when Pr.261 Power failure stop selection  "0", the motor
decelerates to a stop.
426
PARAMETERS
Initial value
FM CA
0
0
1, 2, 11, 12,
21, 22
3 Hz 0 to 20 Hz
0 to 590 Hz
60 Hz 50 Hz
9999
0 to 3600/
5 s
360 s
0 to 3600/
360 s
9999
9999
60 Hz 50 Hz 0 to 590 Hz
100% 0 to 200%
100% 0 to 200%
0
1
1
Inverter
R/L1
S/L2
Power supply
T/L3
R1/L11
Remove the jumper
S1/L21
P/+
N/-
Connect terminals
R1/L11 and P/+
Standard models
and terminals
S1/L21 and N/-.
Setting
range
Power failure time deceleration-to-stop function disabled
Power failure time deceleration-to-stop function enabled
Select action at an undervoltage or when an power failure
occurs.
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).
When output frequency  Pr.263
The motor decelerates from the "output frequency - Pr.262".
When output frequency  Pr.263
Deceleration from the output frequency
The motor decelerates from the "output frequency - Pr.262".
Set the slope applicable from the deceleration start to the
Pr.266 set frequency.

Set the slope applicable for the frequency range starting at
Pr.266 and downward.

Same as Pr.264.
Set the frequency at which the slope during deceleration
switches from the Pr.264 setting to the Pr.265 setting.
Adjust the response at undervoltage avoidance operation.
Setting a large value improves the response to changes in
the bus voltage.
Adjust the response level for the operation where the
deceleration time is automatically adjusted.
Normally open input (NO contact input specification)
Normally closed input (NC contact input specification)
Converter unit
R/L1
S/L2
T/L3
R1/L11
S1/L21
RSO
PWF
Description
The jumpers installed to
terminals R1/L11 and S1/L21
shall remain connected.
Inverter
P/+ P/+
N/- N/-
R1/L11
S1/L21
RDA MRS(X10)
RES
X48
SE SD
Separated converter type
U
V M
W