Mitsubishi Electric MELSEC-L02SCPU User Manual page 68

V
Creep speed
Bias speed at start
1)
Zero signal
V
OPR speed
2)
Bias speed at start
3)
1)
ON
Near-point
OFF
watchdog signal
Zero signal
V
OPR speed
2)
Bias speed at start
1)
ON
Near-point
OFF
watchdog signal
66
Stopped by
stopper
2)
t
3)
Setting for the movement amount
after near-point watchdog signal ON
Creep speed
4)
t
Movement amount after near-
point watchdog signal ON
The near-point watchdog
signal should be turned
off with enough distance
provided from OP position.
First zero after movement
amount has been traveled
after near-point watchdog
signal OFF
Setting for the movement
amount after near-point
watchdog signal ON
Creep speed
3)
4)
t
Movement amount after
near-point watchdog
signal ON
Stopper 3
1) Start of machine OPR.

2) The axis contacts the stopper at the creep speed and stops.

3) When the zero signal is detected, pulse output from the LCPU
stops and machine OPR is complete.
Count 1
1) Start of machine OPR.

2) The axis starts to decelerate upon detection of turning on of the
near-point dog.

3) The axis decelerates to the creep speed and moves at the creep
speed thereafter.

4) Pulse output from the LCPU stops at the first zero signal after the
near-point dog has turned on and the axis has moved the distance set
by "Movement amount after near-point dog ON", and the machine
OPR is complete.
Count 2
1) Start of machine OPR.

2) The axis starts to decelerate upon detection of turning on of the
near-point dog.

3) The axis decelerates to the creep speed and moves at the creep
speed thereafter.

4) Pulse output from the LCPU stops after the axis has moved the
distance set by "Movement amount after near-point dog ON" (the axis
starts to decelerate from the creep speed over the OPR deceleration
stop time), and the machine OPR is complete.