Burned motor terminals on CWD872

[Neale]

Well, you can take the "Pass" sticker off that drive...

Slightly more seriously, that's definitely just the output pins for one coil that are burnt, which suggests a wiring or motor fault downstream of this point. Seems very unlikely to be due to the driver itself. Intermittent short circuit? Pinched insulation somewhere that causes a momentary short when the machine is in certain positions?

[JohnGreg]

Thanks Neale,
The customer hasn't reported any other fault with the drive (apart from the fact that they have to change the drive every 6 months!) I'll see if I can get any more info from him. It's a 6 hour round trip to site just to stick the meter on but I'll see if I can get their maintenance guy to take some initial measurements and check the cabling.