IAI SCON-CB-F, Instruction Manual

Page: 197 / 450

3. Operation
181
3) The control method is the same as that in [1] Positioning. However, the processing of
positioning complete signal PEND is different from that in [1] Positioning.
PEND is output when the shaft is stopped by pressing (pressing complete). If the work is
not subject to pressing (miss-pressing), the actuator moves by the value set in “Positioning
width” to stop but PEND is not turned ON. Completed Position No. PM1 to PM** turn on
both when the pressing operation is complete and when miss-pressing.
Caution: When having a pressing operation using force sensor, it is necessary to calibrate
the loadcell.
[Refer to 3.2.7 Pressing Operation Using Force Sensor Operation Ready
(Calibration of Loadcell)]
Note 1: Set the period taken from entering the position number to turning CSTR ON to 6ms or
longer. Because 6ms timer process on the PLC is also entered to the controller,
positioning at another position may occur. Take the PLC scan time into account.
Note 2: The Completed Position No. output is set to 0 during movement of the actuator.
T1 ≥ 6ms
(Note 1)
PM1 to PM**
＝
0
(Note 2)
PM1 to PM**
＝
0
(Note 2)
Operation of actuator
Not turned ON for
miss-pressing
Approach operation
Pressing
operation
Pressing
Completion
Positioning be setting
of coordinate Value
Movement by
positioning
width
Stop of
pressing
Command position No.
PC1 to PC**
(PLC → Controller)
Completed position
PM1 to PM**
(Controller → PLC)
Start signal CSTR
(PLC → Controller)
Positioning Completion Signal
PEND
(Controller → PLC)
Turned OFF by
turning PEND OFF
Moving Signal MOVE
(Controller → PLC)
3.2.4