Mitsubishi Electric RD77MS2 User Manual page 430

[Pr.36] Sudden 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 sudden stop. The illustration below shows the relationships with other parameters.
[Pr.8]
Speed limit value
[Da.8]
Command speed
[Pr.37] to [Pr.39] Stop group 1/2/3 sudden stop selection
Set the method to stop when the stop causes in the following stop groups occur.
Stop group
Stop group 1
Stop group 2
Stop group 3
The methods of stopping include "0: Normal deceleration stop" and "1: Sudden stop".
If "1: Sudden stop" is selected, the axis will suddenly decelerate to a stop when the stop cause occurs.
12 DATA USED FOR POSITIONING CONTROL
428
12.3 Basic Setting
1) Positioning start
• When positioning is started, the
acceleration starts following the
"acceleration time".
Actual sudden stop
deceleration time
Actual
acceleration
[Pr.36]
time
Sudden stop
deceleration time
Acceleration time
[Pr.9] Acceleration time 0
[Pr.25] Acceleration time 1
[Pr.26] Acceleration time 2
[Pr.27] Acceleration time 3
Details
Stop with hardware stroke limit
Error occurrence of the CPU module, PLC READY signal [Y0] OFF, Fault in test mode
Axis stop signal from the CPU module, Stop signal from the engineering tool, 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)
2) Sudden stop cause occurrence
• When a "sudden stop cause"
occurs, the deceleration starts
following the "sudden stop
deceleration time".
Actual
deceleration
time
Deceleration time
[Pr.10] Deceleration time 0
[Pr.28] Deceleration time 1
[Pr.29] Deceleration time 2
[Pr.30] Deceleration time 3
3) Positioning stop
• When a "sudden stop cause"
does not occur, the deceleration
starts toward the stop position
following the "deceleration time".