Stop Selection (Pr. 250) - Mitsubishi Electric FR-A700 Instruction Manual

Parameter
6.13.3

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 section
6.14.4 for start signal selection.)
Pr. Initial
Name
No. Value
250
Stop selection 9999
Set Pr. 250 to "9999" (initial value) or "8888". The motor decelerates to a stop when the start sig-
nal (STF/STR) turns off.
Fig. 6-105: Stop operation when parameter 250 = 9999
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 after (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.
Fig. 6-106: Stop operation when parameter 250 ≠ 8888 or 9999
FR-A700 EC
Description
Setting
Start Signal
Range
(STF/STR)
STF: Forward
rotation start
0–100s
STR: Reverse rotation
start
STF: Start signal
1000s–
STR: Forward/reverse
1100s
signal
STF: Forward
rotation start
9999
STR: Reverse
rotation start
STF: Start signal
8888 STR: Forward/reverse
signal
Output
frequency [Hz]
Start signal
ON
RUN signal
Output
frequency [Hz]
Start signal
ON
RUN signal
Motor brake and stop operation
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 decel-
erates to stop.
Deceleration starts when start signal turns off
Deceleration time (Time set to Pr. 8, etc.)
DC brake
OFF
ON OFF
Output is shut off when set time elapses after start
signal turned off
Pr. 250
Motor coasts to stop
OFF
ON OFF
Refer to
Parameters referred to
Section
7 Acceleration time 6.11.1
8 Deceleration time 6.11.1
13 starting frequency 6.11.2
Time
I001143E
Time
I001144E
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