Power Failure Time Deceleration-To-Stop Function - Mitsubishi Electric FR-F820-00046 Instruction Manual

5.11.15 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
 Connection and parameter setting
Power supply
Remove the jumper
Connect terminals
R1/L11 and P/+
and terminals
S1/L21 and N/-.
• For the standard model, remove the jumpers between terminals R/L1 and R1/L11 and terminals S/L2 and S1/L21, and
connect terminals R1/L11 and P/+ and terminals S1/L21 and 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.
458
5. PARAMETERS
5.11 (A) Application parameters
Initial value
Setting
range
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
5 s 0 to 3600 s
0 to 3600 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/-.
Description
Power failure time deceleration-to-stop function disabled
Power failure time deceleration-to-stop function enabled.
Select action at an undervoltage or when a 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 if the output frequency decreases by the
frequency set in Pr.262.
When output frequency < Pr.263:
The motor decelerates at frequencies of 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)
Keep the jumpers between
terminals R1/L11 and S1/L21
connected.
Converter unit
R/L1 P/+
S/L2 N/-
T/L3
R1/L11
S1/L21
RDA
RSO
PWF
SE
Separated converter type
Inverter
P/+ U
N/- V M
W
R1/L11
S1/L21
MRS(X10)
RES
X48
SD