Mitsubishi Electric FR-F800 Series Instruction Manual page 564

NOTE
• When the output stop function is enabled (Pr.522 ≠ "9999"), the DC injunction brake operation is disabled and the motor coasts
to stop when the output frequency drops to the Pr.522 setting or lower.
• The motor starts acceleration again at Pr.13 Starting frequency (0.01 Hz under PM motor control) when the command value
exceeds Pr.522 + 2 Hz again if the start signal remains ON while the motor is coasting after the frequency drops to the Pr.522
setting or lower. Re-acceleration during coasting may cause an output shutoff of the inverter depending on the parameter
setting. (Activation of the restart function is recommended especially for a PM motor.)
• The output stop frequency function is disabled during PID control, JOG operation, power failure stop, traverse function
operation, or offline auto tuning.
• During the output stop due to the output stop function (when forward/reverse command is given, but frequency command is
not given), the FWD/REV LED indicator on the operation panel blinks fast. (When the frequency command is not given even
if the forward/reverse command is given.)
CAUTION
• A PM motor is a motor with interior permanent magnets. High voltage is generated at motor terminals while the motor is
running.
Do not touch motor terminals and other parts until the motor stops to prevent an electric shock.
Parameters referred to
Pr.10 DC injection brake operation frequency, Pr.11 DC injection brake operation time, Pr.12 DC injection brake operation
Pr.13 Starting frequencypage
5.13.10 Start signal operation selection / stop selection
Select the stopping method (deceleration stop or coasting) at turn-OFF of the start signal.
Coasting can be selected for the cases such that the motor is stopped with a mechanical brake at turn-OFF of the start signal.
The operation of the start signal (STF/STR) can be selected.
Pr.
250 Stop
G106 selection
*1 Valid only in External operation mode.
 Stop selection
 To decelerate the motor to a stop
• Set Pr.250 = "9999 (initial value) or 8888".
• The motor is decelerated to a stop when the start signal (STF/STR) is turned OFF.
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Name Initial value Setting range
0 to 100 s
1000 to 1100 s
9999
9999
8888
Start
signal
RUN
signal
search engine
Start signal (STF/STR)
STF signal: Forward rotation start
STR signal: Reverse rotation start
STF signal: Start signal
*1
STR signal: Forward/reverse rotation
signal
STF signal: Forward rotation start
STR signal: Reverse rotation start
STF signal: Start signal
*1
STR signal: Forward/reverse rotation
signal
Deceleration starts
when start signal turns OFF
Deceleration time
(Time set in Pr. 8, etc.)
DC brake
OFF
ON
ON OFF
voltagepage 560
Description
Stop operation
The motor coasts to a stop after a
lapse of the setting time when the
start signal is turned OFF.
The motor coasts to a stop after a
lapse of the (Pr.250 - 1000)
seconds when the start signal is
turned OFF.
The motor is decelerated to a stop
when the start signal is turned OFF.
Time
5.13 (G) Control parameters
1
2
3
4
5
6
7
8
9
10
563
5. PARAMETERS