Stop Selection - Mitsubishi Electric 800 Series Instruction Manual

5.16.9

Stop selection

Select the stopping method (deceleration to stop or casting) at turn-OFF of the start signal.
Use this function to stop a motor with a mechanical brake at turn-OFF of the start signal.
Selection of start signal (STF/STR) operation can also be selected. (For start signal selection, refer to
Pr. Name
250
Stop selection
G106
Output
frequency
(Hz)
Start
ON
signal
RUN
ON
signal
Output
frequency
(Hz)
ON
Start signal
ON
RUN signal
NOTE
• 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 frequency 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, Pr.8 Deceleration time
Pr.13 Starting frequency page
Pr.75 Reset selection/disconnected PU detection/PU stop selection
Pr.261 Power failure stop selection
Pr.502 Stop mode selection at communication error
Pr.875 Fault definition page 323
Initial Setting
value range
STF signal: Forward rotation start
0 to 100 s
STR signal: Reverse rotation start
1000 s to STF signal: Start signal
9999
1100 s STR signal: Forward/reverse rotation signal
STF signal: Forward rotation start
9999
STR signal: Reverse rotation start
STF signal: Start signal
8888
STR signal: Forward/reverse rotation signal
Make the motor perform deceleration
Deceleration starts
when start signal turns OFF
Deceleration time
(Time set in Pr. 8, etc.)
DC brake
Time
OFF
OFF
Make the motor perform coast to stop
Output is shut off when
set time elapses after
start signal turns OFF
Pr.250
Motor coasts to stop
Time
OFF
OFF
page 269
283, page 284
page 526
page 546
Description
Start signal (STF/STR)
(Refer to page 421.)
stop
• Set Pr.250 = "9999 (initial value) or 8888".
• It will perform deceleration stop when the start signal (STF/STR)
is turned OFF.
• 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.
page 244
(G) Control parameters
page 421.)
Stop operation
It will coast to stop after set
time when the start signal is
turned OFF.
It will coast to stop after
(Pr.250 - 1000) s when the
start signal is turned OFF.
It will perform deceleration
stop when the start signal is
turned OFF.
607
PARAMETERS
5
GROUP
G