How do I blow a driver??

**JAZZCNC** · 20-04-2012

Hello Ian,

Like Rcn says make sure motor phases are correct. Sheilded cable or unshielded won't damage the drives in any way but with unshielded you run the risk of introducing electrical noise into the system and control signals which can and will cause eratic hair pulling probelms and send you round the bend so just not worth skimping on.!!

Stalling motors won't do any damage what so ever to drives or motors.
NEVER disconnect the motors from drives with power ON,(this goes for any driver not just Roy's) 99.999% time it will blow drives.

Don't give them more than the drives rated Voltage or even the actual rated voltage as back fed current from motors when de-accelerating could blow them, best to leave a small safety margin IE 30V drives use 24V PSU. This why it's best to buy drives with spare capacity.
Setting the amps too high will just make the motors run rough and get hot, It may or may not on Roy's drive do damage(Doubt it.!) having them set too high but on most singel drive setups it doesn't hurt them just makes the motors sound and run awfull.!

Double check and triple check all soldered or crimped connections, esp motor connectors for the above said reasons and if you have any strange happenings while in use, like missed steps or false limit or E-stop triggers this should be the one of the first places to check along with ground connections.

NEVER run signal cables, either motor or limits, E-stop etc along side power cables IE Spindle power this is a sure fire way to introduce electrical noise and premature baldness.!!
Also don't cable tie signal wires together, just let them run side by side with small clearence.

ALWAY ALWAYS use a Star grounding system taking each ground connection back to one main ground point.You can run multiple grounds to a main grounding block but only one (fatter)cable should come from this to the main grounding point.
Only ground one end of sheilded cable and do this again to the main control box Star ground. The only exeption to this is VFD spindle cable and this can or recommended to ground both ends.

Hope this helps and don't be affraid to ask if your not sure.!! . . . . Avoid the magic smoke at ALL COST's. .