What is the purpose of the F0.4 signal in a FANUC PLC ladder program, and how does it affect machine control?
How is the F0.4 flag used in FANUC PLC programming to indicate a specific machine or system condition?
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Signal : F0.4 Symbol : SPL Description : Feed hold signal Detail : CNC will inform the PLC that feed hold is given by user. The F0.4 (SPL) flag is typically activated when the operator presses the feed hold button on the CNC panel to temporarily stop the machine’s motion. In response, the PLC wouldRead more
Signal : F0.4
Symbol : SPL
Description : Feed hold signal
Detail : CNC will inform the PLC that feed hold is given by user.
The F0.4 (SPL) flag is typically activated when the operator presses the feed hold button on the CNC panel to temporarily stop the machine’s motion. In response, the PLC would typically:
- Pause or hold the feed motion of the machine.
- Stop all movements related to the current machining operation (e.g., cutting, positioning).
- Allow the operator to inspect or adjust the machine settings.
- Provide the option to resume the feed or perform further actions when the operator deactivates the feed hold.
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