Mitsubishi Electric 800 Series Instruction Manual page 551

5.13.9 Start signal operation selection / Stop selection
Select the stopping method (deceleration to stop or coasting) 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.
Pr. Name
250 Stop selection
G106
*1 This setting value is valid only in External operation mode.
 Stop selection
 Make the motor perform deceleration stop
• Set Pr.250 = "9999 (initial value) or 8888".
• It will perform deceleration stop when the start signal (STF/STR) is turned OFF.
 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.
550
5. PARAMETERS
5.13 (G) Control parameters
Initial Setting
value range
9999 0 to 100 s STF signal: Forward rotation start
STR signal: Reverse rotation start
1000 s to STF signal: Start signal
*1 STR signal: Forward/reverse rotation signal
1100 s
9999 STF signal: Forward rotation start
STR signal: Reverse rotation start
*1 STF signal: Start signal
8888
STR signal: Forward/reverse rotation signal
Output
frequency
(Hz)
Start
ON
signal
RUN
ON
signal
Output
frequency
(Hz)
ON
Start signal
ON
RUN signal
Description
Start signal (STF/STR)
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 turns OFF
Pr.250
Motor coasts to stop
Time
OFF
OFF
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.