Hi, we've got this side opening car, where when the doors close,and there are no further calls, and dcl is activated, (and pinch torque ceases), the doors just drift back open about 2", until the control sees dcl change states again, then it powers close again. This process repeats until it faults out.

Gravity wants to pull the drive arm vertical, which pulls the doors open. Looked for a slanted track, and dished belts.

Operator is an HD85

Are these types supposed to have pinch torque, when there is no demand?