Mitsubishi Electric FR-A700 EC, Instruction Manual

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Parameter Motor brake and stop operation
FR-A700 EC 6 - 255
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.)
Set Pr. 250 to "9999" (initial value) or "8888". The motor decelerates to a stop when the start sig-
nal (STF/STR) turns off.
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.
Pr.
No.
Name
Initial
Value
Setting
Range
Description
Parameters referred to
Refer to
Section
Start Signal
(STF/STR)
Stop Operation
250
Stop selection 9999
0–100s
STF: Forward
rotation start
STR: Reverse rotation
start
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.
7
8
13
Acceleration time
Deceleration time
starting frequency 6.11.1
6.11.1
6.11.2
1000s–
1100s
STF: Start signal
STR: Forward/reverse
signal
9999
STF: Forward
rotation start
STR: Reverse
rotation start
When the start signal is
turned off, the motor decel-
erates to stop.
8888
STF: Start signal
STR: Forward/reverse
signal
I001143E
Fig. 6-105: Stop operation when parameter 250 = 9999
I001144E
Fig. 6-106: Stop operation when parameter 250
≠
8888 or 9999
Output
frequency [Hz]
Start signal
RUN signal
DC brake
Deceleration starts when start signal turns off
Deceleration time (Time set to Pr. 8, etc.)
Time
ON
ON
OFF
OFF
Output
frequency [Hz]
Start signal
RUN signal
Motor coasts to stop
Output is shut off when set time elapses after start
signal turned off
Pr. 250
Time
ON
ON
OFF
OFF