Advanced Motion Controls SRST185 Shunt Regulator 95W 185V For Sale
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Advanced Motion Controls SRST185 Shunt Regulator 95W 185V :
Advanced Motion Controls SRST185 Shunt Regulator 95W 185V
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).
When the DC Bus reaches the shunt voltage of the shunt regulator assembly, the
voltage comparator unit turns on the electronic switch, which connects the R1
power resistor across the DC Bus. This power resistor dissipates the energy from
the DC Bus. After the bus voltage is reduced to less than the shunt voltage
setting the resistor is disconnected from the bus. A small hysterisis loop
allows time between switching.
Model SRST185 is designed for use with servo drives up to 200 volts. This model
equipped with 200VDC, 1200µF filter capacitor.
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