IAI America ERC3 - Manual (Page 206)

Chapter 4 Operation
4.2 Operation in Positioner Mode
4.2.2 Operation in Positioner Mode 1
196
 
Caution: (1) At occurrence of an alarm in the release level Note 1 , RES can reset
the alarm. Cancel the remaining moving distance after confirmation
that alarm signal *ALM (being ON in normal state and OFF at
occurrence of an alarm) is set to ON.
(2) If *STP is turned OFF when the actuator is in a positioning complete
condition, PE* would not turn OFF.
Note 1 Refer to Chapter 8 Troubleshooting for details of alarms.


II. Use of start signal ST*
„ Control method
It is available to pause the operation if turning OFF the start signal ST* during the operation.
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 paused. The deceleration
is the value set in the position table.
2) ST* Signal being turned OFF is identified as a cancel of positioning. PE* would not turn
ON.
3) If the ST* signal is turned ON again, the remaining movement is continued. The
acceleration is the value set in the position table.
Before operation
Positioning
complete state
Operation
Temp.
stop
Cont.
Op.
Position
complete
Start signal
ST*
(PLCĺController)
Operation of actuator
PE* not
turned ON
Current position No.
PE*
(ControllerĺPLC)
Velocity
Positioning
Completion
Signal Output
1) 2) 3) 4) 5)
1) 3) 4) 5)
2)