Veća slika
The SRST Series shunt regulator assemblies are designed to work with ADVANCED Motion Controls’ four quadrant regenerative servo drives. During braking most of the stored mechanical energy is fed back into the power supply, which charges the output capacitor to a higher voltage. If the charge reaches the drive’s over-voltage shutdown point, motor control and braking will cease. To ensure smooth braking of large inertial loads the use of a shunt-regulator is recommended. Verify the need for a shunt regulator by operating the drive under the worst case braking condition. If the drive shuts off due to over-voltage (blinking red LED) a shunt regulator is necessary (typically during downward move or deceleration). 
