Stop Processing Function - Mitsubishi Electric MELSEC-L02SCPU User Manual

7.10.8

Stop processing function

The following explains the stop processing that takes place when a stop cause occurs during operation. The
deceleration time after the occurrence of a stop cause varies depending on the specific control.
Control details
• Positioning using the Table start instruction (IPPSTRT1(P)): Positioning data "Deceleration stop time"
Positioning control
• Positioning using the Positioning start instruction (IPDSTRT1(P)): Setting data "Deceleration stop time"
JOG operation JOG DEC time set as control data in the JOG start instruction (IPJOG1)
OPR control OPR parameter "OPR deceleration stop time"
After speed change DEC/STOP time at speed change, set by the Speed change instruction (IPSPCHG1(P))
(1) Details of stop processing control
• When a stop cause occurs, the axis decelerates to the bias speed at start and then stops.
• If the axis reaches the specified position while decelerating following the occurrence of a stop cause, it stops
immediately.
(2) Stop cause
A stop cause occurs at the following conditions.
• Each control ends successfully
• An error occurs
• The Axis stop instruction (IPSTOP1) is executed
• A return operation occurs during target position change
The following shows operations when above conditions occur except "each control ends successfully".
Stop cause
Software stroke upper limit
Software stroke lower limit
Hardware stroke upper limit
Hardware stroke lower limit
Program execution is stopped.
Drive unit ready signal is off.
The Axis stop instruction (IPSTOP1) is
executed.
A return operation occurs during target
position change
(Operating normally)
130
Positioning
OPR control
control
Deceleration

to a stop
Deceleration Deceleration
to a stop to a stop
Deceleration Deceleration
to a stop to a stop
Deceleration Deceleration
to a stop to a stop
Deceleration Deceleration
to a stop to a stop
Deceleration

to a stop
Deceleration time
JOG operation Target axis
Deceleration to a stop For each axis
Deceleration to a stop For each axis
Deceleration to a stop All axes
Deceleration to a stop For each axis
Deceleration to a stop For each axis

Axis 1 axis operation
status (SD1844) after
stopping
Error occurring (-1)
Error occurring (-1)
(Except when OPR
retry is performed.)
Error occurring (-1)
Error occurring (-1)
Stopped (1)
 