Shunt Regulators

Transient over-voltage problems are quickly solved using shunt regulators. These simple devices increase system reliability by stabilizing voltage fluctuations thereby eliminating over-voltage shutdowns.

The need for a shunt regulator is indicated when system faults occur during the deceleration portion of a move. This can be verified by monitoring the power supply voltage on an oscilloscope and looking for voltages that exceed the over voltage rating of the servo drive.