Jaguar Failure

[Russ Beavis]

Powering ANY motor drives from a bench supply can be problematic. The most common problem is the need to absorb regeneration energy as a spinning motor (and its load) are commanded to stop/reverse.

Many power supplies do an excellent job of providing overvoltage protection on their outputs and will not tolerate current being forced into their outputs. As a result, the power supply bus for the motor drive can jump to a super high voltage when a motor tries to regenerate. This high voltage often results in a silent death.

This is the reason why special power supplies and shunt loads are used to power motion control systems.

I'd encourage everyone to ALWAYS use a battery to power their motor drives to avoid this particular issue.

Russ