Simple switch runout triggers Heater Fault
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I have an IDEX machine, and I am in the process of installing runout sensors (simple switch) to e0stop and e1stop. The sensors show up fine when I run M591 D0 or D1, but when I trigger either switch I get a heater fault/error for the respective extruder and that extruder cooling fan kicks in. It all returns to normal when I put filament back in the sensor.
The switches are wired as normally closed to the two outer pins of the header (GND/STP).
I looked everywhere but cannot find anything with this specific condition.
I am running Duet 2 WiFi with Duex5 and Firmware 3.2.
Any help will be greatly appreciated. Thanks!
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@Phaedrux thanks for your attention. I isolated the problem to a breakout board that my extruders are using. It appears that the filament wiring is sharing ground with other elements on the board and that is what's triggering the heater fault. When I connect the switch all by itself through a dedicated wire it all works as expected.
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Can you post the results of M122 and M98 P"config.g"?
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This post is deleted! -
@Phaedrux thanks for your attention. I isolated the problem to a breakout board that my extruders are using. It appears that the filament wiring is sharing ground with other elements on the board and that is what's triggering the heater fault. When I connect the switch all by itself through a dedicated wire it all works as expected.
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I ended up reversing the heater sensor pins and it all works great with my extruder breakout boards.
