The PSU-S1 is a power supply
module in a 6U Eurocard form factor. Intended for use as a Bus and Bias
supply for high voltage Western Servo Design amplifiers (e.g., PAU, and BPU),
the PSU-S1 can be used in a Eurocard (or "VME") style
chassis, or as a stand alone unit.
The PSU-S1 contains an unregulated DC Bus output, a regulated Bias output (±12VDC), a 12VDC output for cooling fans, and a built-in Shunt Regulator. When PWM amplifiers are used, the Shunt Regulator prevents back EMF generated by the motors from damaging components in the Bus Supply and Amplifiers.
An optional backplane is available to allow quick and easy access to the inputs and outputs for the power supplies and the Shunt Regulator. This greatly simplifies implementing the PSU-S1 in a motion control system.
*All ratings with forced air cooling to maintain 40°C heat sink temperature. Failure to keep constant air flow to the heat sink will reduce the output current capacity and may result in damage to the unit.
The PSU-S1 can be connected directly to single-phase or three-phase AC. With a 120VAC input, the Bus Voltage will be 170VDC. With a 230VAC input, the Bus Voltage will be 320VDC.
All data sheets are in Adobe Acrobat format.