Mitsubishi Electric FR-A800, Instruction Manual

Page: 854 / 1042

(G) Control parameters Parameters
5 - 674
Make the motor perform coast to stop
●
Set the time from the time the start signal is turned OFF to when the output is shutoff in Pr. 250.
When set to "1000 to 1100", output is shutoff after (Pr. 250 – 1000) s.
●
The output is shutoff after the set time of Pr. 250 has elapsed after the start signal is turned OFF.
The motor will coast to stop.
●
The RUN signal will be turned OFF at the time of output stop.
I001144E
Fig. 5-336: Stop operation when parameter 250 ≠ 8888 or 9999
NOTES Stop selection is disabled when following functions are operating.
●
Position control (Pr. 419 = "0")
●
Power failure stop function (Pr. 261)
●
PU stop (Pr. 75)
●
Deceleration stop due to fault initiation (Pr. 875)
●
Deceleration stop due to communication error (Pr. 502)
●
Offline auto tuning (with motor rotation)
When Pr. 250 ≠ "9999 or 8888", acceleration/deceleration is performed in accordance to the fre-
quency command until the output is shutoff by turning OFF the start signal.
When the restart signal is turned ON during the motor coasting, the operation is resumed from
Pr. 13 "Starting frequency".
Even with the setting of coasting to stop, when the LX signal is turned ON, the motor does not
coast but zero speed control or servo lock is applied.
Parameters referred to
Pr. 7 Acceleration time => page 5-233
Pr. 8 Deceleration time => page 5-233
Pr. 13 Starting frequency => page 5-251, page 5-253
Pr. 75 Reset selection/disconnected PU detection/PU stop selection => page 5-192
Pr. 261 Power failure stop selection => page 5-580
Pr. 502 Stop mode selection at communication error => page 5-606
Pr. 875 Fault definition => page 5-302
Output
frequency [Hz]
Start signal
Motor coasts to stop
Output is shut off when set time elapses after
start signal turns OFF
Time
ON
ON
OFF
OFF RUN signal
Pr. 250