IAI SCON-CA - Home Return (HOME, HEND)

Chapter 3 Operation
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[5] Pause and Operation Interruption (ST*, *STP, RES, PE*, PEND)
Turning start signal ST* OFF allows the actuator to be paused while it is moved. To restart it,
turn the same ST* signal ON.
 Control method
If start signal ST* is turned OFF during movement, the actuator can be paused.
Use the control method for interlock in case where an object is invaded into the moving
direction of the actuator being moved.
1) If the ST* signal is turned OFF during movement, the actuator is decelerated to a stop. The
deceleration is the value set in the position table.
2) If the ST* signal is turned ON again, the remaining movement is continued. The
acceleration is the value set in the position table.
Befor operation
Positioning
complete
state
Operation
Temp.
stop
Cont.
Op.
Position
complete
Operation of actuator
Start signal
ST*
(PLC→Controller)
LS* not
turned ON
Position sensing Output
LS*
(Controller→PLC)
V
e
l
oc
it
y
1)
2) 3)
4)
5)
1) 3) 4) 5)
2)