Maxon Precision Motors (Fall River, MA) has introduced the ESCON 36/2 DC, a 4-quadrant PWM servo controller for use with DC motors up to 72 Watts. This digital current controller provides drift-free yet dynamic speed behavior through a speed range of 1 to 150,000 RPM. The servo controller is controlled by means of an analog set value. The value can be specified by means of analog voltage, an external or internal potentiometer, a defined value, or by means of a PWM signal with variable duty cycle. The power stage may be enabled or disabled depending on the direction of rotation; speed ramps may also be used for acceleration and deceleration. The speed can be regulated by means of a digital incremental encoder (2 channel, with/without line driver), DC tacho, or without encoder (IxR compensation).

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Medical Motion Control

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