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International Space Station (ISS) Integrated Motor Controller Assembly (IMCA)
Technical Paper
2001-01-2404
ISSN: 0148-7191, e-ISSN: 2688-3627
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Language:
English
Abstract
The Integrated Motor Controller Assembly (IMCA) is a self-contained “universal” package with interface and control electronics, motor, and gearing. It is used in multiple applications on the International Space Station (ISS) as the actuator/prime mover. Digital commands received from the ISS Multiplexer/DeMultiplexer (MDM) computer via a MIL-STD-1553 digital data bus are converted to drive signals to operate and control motor output.
The control loop includes a compensation algorithm providing low cogging torque - - a critical requirement in preventing excitation of the ISS structure. The users of higher level mechanisms can tailor control algorithm operational parameters by downloading from the MDM.