M80

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Table of Contents Description Example Discussion Notes

Description

Turn on the power supply. Requires the POWER_SUPPLY option.

Example

 M80

Discussion

This command turns on the high voltage (usually 12V) power supply used for motors, hot ends, and the heated bed. ATX power supply units and some other power supplies include a lead that acts as a switch to turn the power supply on (or off) when connected to ground. These power-switch leads can be connected to pins on the controller board to turn the voltage on and off with software control.

Notes

• If the power supply isn't set up for software switching this command will simply be ignored.