# Rotary Alarm Connection?

**URL:** <https://forum.pwncnc.com/t/rotary-alarm-connection/3643>\
**Category:** General\
**Created:** [January 17, 2026, 5:52pm UTC](https://forum.pwncnc.com/t/rotary-alarm-connection/3643 "2026-01-17T17:52:23Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Arnwoody](https://avatars.discourse-cdn.com/v4/letter/a/ba8739/32.png) [@Arnwoody](https://forum.pwncnc.com/u/Arnwoody)\
**Post date:** [January 17, 2026, 5:52pm UTC](https://forum.pwncnc.com/t/rotary-alarm-connection/3643/1 "2026-01-17T17:52:23Z")

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What are people doing about connecting the a-axis motor alarm wire? Daniel said you don’t really need it. Ugly Dog says it’s pretty important. Daniel said there’d be more info, but I don’t see any. Based on Ugly Dog’s video, it also needs power and a 10k ohm resistor? As I recall, the other motors use 5.6k? Planning to install my rotary today so looking for guidance.

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**Author:** ![Chris](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.pwncnc.com/chris/32/54_2.png) [@Chris](https://forum.pwncnc.com/u/Chris)\
**Post date:** [January 18, 2026, 8:39pm UTC](https://forum.pwncnc.com/t/rotary-alarm-connection/3643/2 "2026-01-18T20:39:50Z")

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There’s nothing here about it being necessary

> **[Setup Rotary Axis](https://docs.masso.com.au/quick-start-guides/rotary-axis)**

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**Author:** ![Chris](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.pwncnc.com/chris/32/54_2.png) [@Chris](https://forum.pwncnc.com/u/Chris)\
**Post date:** [January 18, 2026, 10:40pm UTC](https://forum.pwncnc.com/t/rotary-alarm-connection/3643/3 "2026-01-18T22:40:21Z")

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I did some deeper digging… the motor page says 2.7k ohm resistor on the enable, not the alarm.

I looked at my own setup and have 2 resistors in parralel… I’m assuming 2x 5.6k because at the time i had like a hundred of them.

> **[MASSO Closed Loop Stepper Motors](https://docs.masso.com.au/wiring-and-setup/setup-and-calibration/axis-servo-stepper-examples/masso-stepper)**
