... work when energized1,Check AC power fault.2,Work air gap larger.2,one sucked when brake energizedthe other don’t sucked1.check ... bite or other goods .3,brake when energized ,brake disc begin smoking1,Work air gap adjust smaller.2,Work air gap don’t ... work1,dynamic moment of inertia large of work system,brake torque small.2,Work air gap larger,should adjust air gap.3 ...