Alarm if stepper-wire disconnected?

FBG

I use board Duet3 6HC for move my printer.
Talking about Z axis is moved for 4 screws, each Z stepper motor I connect in one connector of the board 6HC output stepper motor.
Everything works properly.

BUT if for example I forget connect one of this 4 connectors the printer will move 3 screws, doing a big crash in my printer...

There are some way of config an alarm, and if the duet board detect that there are a stepper motor NOT connected give me an alarm and don't move thing...??

Best Regards

jay_s_uk

@FBG usually if the connector isn't connected you'll get a message about short to ground or something like that on coils A and B.
you could use the built in events system to react to that https://docs.duet3d.com/en/User_manual/RepRapFirmware/Events

FBG

Sorry for me long delay.

The problem is that I don't receive any message.
Why I don't receive any message if wire is disconnected?

Tnks

Phaedrux

@FBG said in Alarm if stepper-wire disconnected?:

4 screws, each Z stepper motor I connect in one connector of the board 6HC output stepper motor.

So you have 4 motors connected to one driver in parallel? Is that correct?

If that's the case, the driver has no way of knowing if one of those is disconnected, as far as it knows there is still a motor load present since there are still 3 motors connected.

FBG

@Phaedrux Not not.
Each stepper motor is connected in one driver of the board duet3 6HC.

T3P3Tony

@FBG are you running 3.4.5 and have the events setup?

FBG

@T3P3Tony Tested in 3.4.5 yes.

Whats do you mean with "have the events setup"?
sorry...

T3P3Tony

@FBG I mean do you have the event macro setup to handle the driver errors, see:
https://docs.duet3d.com/en/User_manual/RepRapFirmware/Events