A motion control system has an enclosed assembly that encloses moving
parts. A controller controls a motion of the moving parts and has an
inhibit input that inhibits the motion. A sensor provides sensor outputs
that depend on an assembly temperature and an assembly humidity in the
enclosed assembly. A circuit provides a condensing condition output as a
function of the sensor outputs. The condensing condition output couples
to the inhibit input to inhibit the motion as a function of the sensor
outputs.