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M51 Built in M code relay 1 on
Haas NGC M-code · Lathe
Turns on built in M code relay 1 and leaves it on. Use M61 to turn it off. Used for customer added devices.
Format
M51
How it works
Modal until M61 or RESET.
Example program
M51 (RELAY 1 ON, CUSTOM DEVICE)
G04 P1. (WAIT 1 SECOND)
M61 (RELAY 1 OFF)
G04 P1. (WAIT 1 SECOND)
M61 (RELAY 1 OFF)
Example is in inch. Check offsets and clearances first.
Watch out for
- RESET turns off all of these relays.
- Check what the relay is wired to on your machine before using it.
Related codes
M51 on other controls
The same number can mean something different on another control.
| Control | Meaning |
|---|---|
| Doosan (Fanuc) | Bar-feeder command 2 |
| DMG Mori MAPPS (Fanuc) | Air blow ON |
| Mazak (EIA) | Error detect OFF |
| LinuxCNC Tormach | Spindle override control |
| Centroid CNC12 Acorn | C axis on |
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