Stop Selection (Pr. 250) - Mitsubishi Electric FR-D720-0.2K-G Instruction Manual

S-pm geared motor drive unit fr-d700-g series
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Motor brake and stop operation

4.10.5 Stop selection (Pr. 250)

Used to select the stopping method (deceleration to a stop or coasting) when the start signal turns OFF.
Used to stop the motor with a mechanical brake, etc. together with switching OFF of the start signal.
You can also select the operations of the start signals (STF/STR). (Refer to page 121 for start signal selection.)
Parameter
Name
Number
250
Stop selection
The above parameter can be set when Pr. 160 Extended function display selection = "0". (Refer to page 161.)
Rotation
speed
(r/min)
Start signal
ON
RUN signal
Rotation
speed
(r/min)
Start signal
ON
RUN signal
ON
REMARKS
 Stop selection is invalid when the following functions are activated.
 PU stop (Pr. 75)
 Deceleration stop because of communication error (Pr. 502)
 Jog operation mode
 When setting of Pr. 250 is not 9999 nor 8888, acceleration/deceleration is performed according to the speed command, until
start signal is OFF and output is shut off.
 Turning ON the LX signal during pre-excitation will decelerate the motor to a stop even if the motor is set to coast to a stop.
NOTE
 When the start signal is turned ON again during motor coasting, the motor starts at Pr. 13 Starting speed.
A PM motor is a magnet motor. 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. 7 Acceleration time, Pr. 8 Deceleration time
Pr. 13 Starting speed
116
Setting
Initial Value
Range
0 to 100s
1000s to 1100s
9999
9999
8888
Deceleration starts
when start signal turns OFF
Deceleration time
(Time set in Pr. 8, etc.)
DC injection brake
Time
OFF
ON
OFF
Output is shut off when set
time elapses after start
signal turned OFF
Pr. 250
The motor coasts to stop
Time
OFF
OFF
Refer to page 97.
Refer to page 99.
Start signal (STF/STR)
(Refer to page 121.)
STF signal: Forward rotation start
STR signal: Reverse rotation start
STF signal: Start signal
STR signal: Forward/reverse signal
STF signal: Forward rotation start
STR signal: Reverse rotation start
STF signal: Start signal
STR signal: Forward/reverse signal
(1)
Decelerate the motor to a stop
Set Pr. 250 to "9999" (initial value) or "8888".
The motor decelerates to a stop when the start signal
(STF/STR) turns OFF.
(2)
Coast the motor to a stop
Use Pr. 250 to set the time from when the start signal turns
OFF until the output is shut off. When any of "1000 to
1100" is set, the output is shut off in (Pr. 250 - 1000)s.
The output is shut off when the time set in Pr. 250 has
elapsed after the start signal had turned OFF. The motor
coasts to a stop.
The RUN signal turns OFF when the output stops.
CAUTION
Description
Stop operation
The motor is coasted to a stop
when the preset time elapses after
the start signal is turned OFF.
The motor is coasted to a stop (Pr.
250 - 1000)s after the start signal is
turned OFF.
When the start signal is turned
OFF, the motor decelerates to
stop.

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