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11. PLC Axis Control
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11.3.3.4 Control Signals (PLC axis control information data)
Control signals such as start, interlock, reset, axis removal and axis removal 2 are designated for the
PLC axis.
F E D C B A 9 876543210
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bit 0: Start bit 8 : Absolute value command
1: Interlock 9:
2: Reset A:
3: Servo OFF B:
4: Axis removal C:
5: Axis removal 2 D:
6: E:
7: F:
bit 0: Start
Starting begins at the at the rising edge (OFF -> ON) of the start signal, based on the control
information data.
The axis does not move during interlock, servo OFF, axis removal and axis removal 2.
Movement starts after interlock, servo OFF, axis removal and axis removal 2 are canceled.
Start is invalid during resetting.
bit 1: Interlock
The moving PLC axis executes a deceleration stop when the interlock signal turns ON. The
stopped PLC axis will resume movement when the interlock signal turns OFF (is canceled).
bit 2: Reset
The PLC axis is reset when the reset signal turns ON. Moving PLC axes will execute a
deceleration stop. Commands and controls are invalid during resetting.
If the reset signal turns ON during an alarm occurrence, the alarm will be cleared.
bit 3: Servo OFF
The PLC axis will execute a deceleration stop and its servo will turn OFF when the servo OFF
signal turns ON. Whether the PLC axis movement is compensated during servo OFF can be
selected in the basic specification parameter "#1064 svof".
A servo ON status will result when the power is turned ON.
bit4: Axis removal
The axis will execute a deceleration stop, and a servo OFF status will result, when the axis
removal signal turns ON. A servo ON status will result and the stopped PLC axis will resume
movement when the axis removal signal turns OFF (is canceled).
Axis removal is validated when either this signal or machining parameter and axis parameter
"#8201 Axis Removal" is validated.
The zero point return will become incomplete when the axis is removed. Therefore, a dog-type
reference point return must be completed again when starting with an absolute value command.