System Overview

The S2K Series is a family of high performance standalone brushless servo or stepper

amplifiers with integrated motion controllers and user configurable I/O functions.

Controllers are available in models configured for either resolver or serial encoder motor

feedback. Encoder-based S2K servo models can be used only with GE Fanuc S-Series

(SLM, SDM or SGM) servo motors. S2K resolver feedback servo controllers use GE

Fanuc MTR-Series (3N, 3S or 3T) servo motors or third-party motors with appropriate

ratings and resolver specifications. Please consult the factory for assistance in controlling non-GE Fanuc motors.

Servo models support continuous stall torque from 0.84–478 in-lb (0.095–54 Nm) while

the stepper model supports holding torque from 144–3.074 oz-in (16.3–21.7 Nm). Servo

controller models include four 230 VAC ratings of 4.3. 7.2. 16. and 28 amps continuous

and two 460 VAC ratings of 7.2 and 20 amps continuous (460 VAC models are only

available with resolver feedback). Peak currents of the 230 VAC servo models are two

times the continuous ratings while the 460 VAC servo models are 1.5 times the

continuous rating. The stepper controller has a rating of 5 amps.