Stop Selection (Pr. 250) - Mitsubishi Electric FR-E720-0.1 K Instruction Manual

4.10.3 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 138 for start signal selection)
Parameter
Name
Number
250 Stop selection
The above parameters can be set when Pr. 160 User group read selection = "0". (Refer to page 183)
Output
frequency
(Hz)
Start signal
ON
RUN signal ON
Output
frequency
(Hz)
Start signal
ON
RUN signal ON
REMARKS
Stop selection is invalid when the following functions are activated.
Power failure stop function (Pr. 261)
PU stop (Pr. 75)
Deceleration stop because of communication error (Pr. 502)
Emergency stop by L
When setting of Pr. 250 is not 9999 nor 8888, acceleration/deceleration is performed according to the frequency command, until
start signal is OFF and output is shutoff.
NOTE
When the start signal is turned ON again during motor coasting, the motor starts at Pr. 13 Starting frequency.
Parameters referred to
Pr .7 Acceleration time, Pr. 8 Deceleration time
Pr. 13 Starting frequency
Initial
Setting Range
Value
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 brake
Time
OFF
OFF
Output is shut off when set
time elapses after start
signal turned OFF
Pr. 250
The motor coasts to stop
Time
OFF
OFF
W communication
ON ORKS
Refer to page 105
Refer to page 108
Motor brake and stop operation
Description
Start signal (STF/STR)
(Refer to page 138)
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.
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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