IAI America ACON-CG - Manual (Page 77)

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5. I/O Signal Control and Signal Functions
„ Movement complete at each position (PE0 to PE6) [Solenoid valve mode 1 (7-point type)]
When PIO pattern is “4,” a position number (0 through 6) corresponding to each movement command will be
output upon completion of positioning. Simple alarm-code output function is not provided for these signals. If an
alarm generates, only the *ALM signal will turn OFF. Check the details of the alarm code using each tool.
Correspondence table of output signals and positions completed
Output signal Position completed
PE0 Position No. 0
PE1 Position No. 1
PE2 Position No. 2
PE3 Position No. 3
PE4 Position No. 4
PE5 Position No. 5
PE6 Position No. 6
Note) These signals turn OFF when the servo is turned OFF or an emergency stop is actuated. They will return
to the ON status when the servo is turned ON again, provided that the current position is inside the
positioning band with respect to the target position. If the current position is outside the positioning band,
the signals will remain OFF.
„ Position detection output at each position (LS0 to LS2) [Solenoid valve mode 2 (3-point type)]
These signals have the same meanings as the LS signals of an air cylinder. Each signal will turn ON when the
current position enters the positioning band of the target position.
(Note) Even if the servo turns off or an emergency stop is actuated while the actuator is stopped at the target
position, the signal will remain ON as long as the actuator is inside the positioning band.
Output signal Position detected Remarks
LS0 Rear end
The detection position is defined in the “Position” and “Positioning
band” fields for position No. 0.
LS1 Front end
The detection position is defined in the “Position” and “Positioning
band” fields for position No. 1.
LS2 Intermediate point
The detection position is defined in the “Position” and “Positioning
band” fields for position No. 2.
„ Ready (SV)
This is a monitor signal indicating that the servo is ON and the motor is ready.
Use this signal as a condition for starting a movement command on the PLC side.
„ Alarm (*ALM)
This signal remains ON while the controller is operating properly, and turns OFF when an alarm has generated.
Provide an appropriate safety measure for the entire system by allowing the PLC to monitor the OFF status of
this signal.
For details of alarms, refer to 10, “Troubleshooting.”
„ Torque level status (TRQS)
This signal is output if the actuator performs jogging before home return and the slider (rod) crashes against the
mechanical end or an obstacle, causing the motor current value to reach the current-limiting value at home
return.