What's going on with the decline in construction lift
Check to see if there is any problem with holding the brake. There is no problem with the contactless contactor, which is the most common cause of the vehicle. Normal contactor will rebound at the moment of you to stop operation, adhesion would be stuck there for a few seconds and then bounce back, in a few seconds the brake coil is charged, the brake is still in open state, but the motor has stopped working, so will decline, it's adhesion change the same contactor change.
Check whether the brake work is valid.Check to see if there is any problem with holding the brake.
Check whether the brake contactor and normal, contactor adhesion conditions will decline, brake pads have the problem not only rise to fall, fall in the same slide. If the contactor is ok, you can see that there is a groove on the brake pad, and it is only replaced if the brake is not damaged, such as cracking. If it's a frequency conversion elevator, if you're down, see if the converter has any fault code, if you have a consulting manufacturer. The assumption is that the anchuan frequency converter, which may be a real SE failure, means that the timing error is not normal for controlling the contact of the receiver.