Short-to-ground reported by driver(s) 0 1 2 3 4
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@luk14, just to be clear: when do you see this error message? Is it:
- Just once when you apply external 5V power, when VIN power is not already applied;
- Just once when you apply external 5V power, when VIN power is already applied;
- More than once; and if so, when?
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Nr.1 and when i apply 5V and VIN simultaneously.
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Any further ideas?
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We're not sure what is going on. I've tried to replicate the issue by applying USB power, connecting with DWC, and then applying 24V power, but this didn't cause the fault. I had the internal regulator still enabled, but this shouldn't make any difference given that 5V power was already provided via USB.
So I suggest we try replacing your Duet. Please contact your supplier to request a replacement under warranty, referring them to this post as authorisation.
I'm sorry it has taken so long to reach a decision about this.
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I got a replacement two days ago. With the new board everything works like i expected.
One more question. My 24V PSU can be turned on and off by a external signal. I wired it up and it works, but unfortunately the PSU is not a ATX one and turns off if it gets the 5V signal from the Duet. Is there a setting in the firmware where i can invert the ATX_ON pin?
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Ok it seams like there is no firmware solution. I will use a relay instead. But there should be a simple firmware solution, because these Meanwell PSUs are quite popular.
