Quote Originally Posted by Web Goblin View Post
Ive already got some on order but thanks anyway. Looks like the protection diode is built in. I think that's whats gone short circuit.
OK - it varies, e.g. the DQ860MA add external diodes from the phases to DC bus, as they're higher speed so offer better protection against unplugging whilst powered on. The m752's I've seen don't have these.

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Quote Originally Posted by JAZZCNC View Post
Yep and I'll throw a few smaller DM drives in for you to play with. email me address.
Done.