The 2-Channel USMC may receive
commands from the host system either in the form of isolated
(optically coupled) discrete commands, or in serial digital
(RS-422/485) format. The stepper motors may be of any
configuration, either 2-phase or 3-phase, either unipolar or
Output waveshapes are synthesized
using high-efficiency Pulse Width Modulation, to provide
constant-current pulses to the motor windings, regardless of
fluctuations in the +28 VDC line voltage.
Microstepping is also available, with
resolution down to 1/64. EMI filters on the input line provide
compliance with Conducted Emitted (CE) and Conducted Susceptibility
(CS) requirements of MIL-STD-461E. Output filters and gaskets
provide compliance with Radiated Susceptibility (RS) and Radiated
Emitted (RE) requirements.
The serial digital (RS-422/485)
Status/Telemetry Output provides Temperature data from two RTD
temperature sensors, which may be connected externally at
convenient locations, e.g. the two stepper motors.