The PDH-S3 is a medium power, brushed PWM servo amplifier in a 3E Edge Mount package. This multi-purpose amplifier contains both Velocity and Torque feedback loops. Inputs are provided to allow tachometer feedback in the Velocity Mode. The Torque Mode can be used for torque control applications, or in conjunction with a digital servo controller capable of computing Position and Velocity loop values. The Torque Mode can also be used for feedback in the Velocity Mode, with or without a position controller. The high switching frequency of the PDH-S3 allows the amplifier to drive very low inductance loads. Potentiometer adjustments for Signal Gain, Tach Gain, System Response, and Balance are provided. This amplifier is functionally similar to the PDH-S2 (which it replaces), and is built with Surface Mount ciruitry.
The Travel Limit and Amp Enable inputs are jumper selectable to accept normally open or normally closed switches.
The PDH-S3 has over and under voltage shutdown as well as over current protection. Two LEDs indicate power on and fault conditions. An Amp Fault output can be used to indicate a fault condition to an external controller.
All data sheets are in Adobe Acrobat format.