Mitsubishi Electric MELSEC-Q Series User Manual page 162

[Pr.36] Rapid stop deceleration time
Set the time to reach speed 0 from "[Pr.8] Speed limit value" ("[Pr.31] JOG speed
limit value" at JOG operation control) during the rapid stop. The illustration below
shows the relationships with other parameters.
1) Positioning start
When positioning is started,
the acceleration starts following
the "acceleration time".
Pr.8
Speed limit
value
Da.8
Command
speed
Actual accel-
eration time
Acceleration time
[Pr.37] Stop group 1 rapid stop selection
to
[Pr.39] Stop group 3 rapid stop selection
Set the method to stop when the stop causes in the following stop groups occur.



The methods of stopping include "0: Normal deceleration stop" and "1: Rapid stop".
If "1: Rapid stop" is selected, the axis will rapidly decelerate to a stop when the
stop cause occurs.
2) Rapid stop cause occurrence
When a "rapid stop cause" occurs,
the deceleration starts following the
"rapid stop deceleration time".
Actual rapid stop
deceleration time
Pr.36
Rapid stop
deceleration time
Acceleration time 0
Pr.9
Acceleration time 1
Pr.25
Acceleration time 2
Pr.26
Acceleration time 3
Pr.27
Stop group 1 ............. Stop with hardware stroke limit
Stop group 2 ............. Error occurrence of the PLC CPU, PLC READY signal
Stop group 3 ............. Axis stop signal from PLC CPU
Chapter 5 Data Used for Positioning Control
Deceleration time
[Y0] OFF, Fault in test mode
Stop signal from test function of GX Works2
Error occurrence (excludes errors in stop groups 1 and 2:
includes only the software stroke limit errors during JOG
operation, speed control, speed-position switching control,
and position-speed switching control)
5 - 42
3) Positioning stop
When a "rapid stop cause"
does not occur, the decelera-
tion starts toward the stop
position following the "decel-
eration time".
Actual decel-
eration time
Deceleration time 0
Pr.10
Deceleration time 1
Pr.28
Deceleration time 2
Pr.29
Deceleration time 3
Pr.30