Description

Safety control board, is used in order the car is allowed to move, in a small area (door open zone), with the doors open.

This can be done in two cases:

Relevelling
Door pre-opening.
In order to door open zone be defined, two magnetic sensors SLV1, SLV2 must be used. As long as both magnetic sensors are is door open zone then doors are allowed to open. This can be done by short-circuit the doors safety chain circuit, using the safety contacts of the relays on safety control board.