Quote from LogicSpeaks on 2 March 2025, 05:31

Greetings,

I am using SimCNC with a CSMIO IP-S motion controller and Teknic SST Eclipse servo drives, which provide a High-Level Feedback (HLFB~) signal. The HLFB~ signal can be configured in InRange~ mode, where:

• HLFB~ is LOW (0V) when the servo is within an acceptable position tolerance (In Range).
• HLFB~ is HIGH (24V via pull-up) when the servo is out of range (e.g., stalled, lagging behind, or lost position).

I want SimCNC to pause all motion when HLFB~ indicates that a drive is out of range, similar to how MultiCam 3000 uses the "IN RNG" input to track motion accuracy. I am not 100% confident this is how this input is wired since this is my first project wiring servo drives.

Current understanding:

1. Wire HLFB~ (Pin 15) from the Teknic drive to a CSMIO digital input.
2. Added a pull-up resistor (4.7kΩ) to 24V to ensure proper signal reading since the drive uses open-collector outputs.

My Questions:

1. How can I configure SimCNC to automatically pause motion when HLFB~ goes HIGH (out of range)? is there a better way to set this up? Is this even necessary?

   • I expected to find a setting like "Feed Hold Condition" or "Feed Stop," but I don’t see anything similar in SimCNC that I've seen in Mach3 and 4.
   • Should I configure this as a "Drive Fault" input instead? If so, how?

Any help in setting this up in SimCNC would be greatly appreciated!