Elevator control works by intercepting the elevator control panel, the elevator button output control line directly connected to the MAX elevator expansion module output terminals (relay start and the common side). In the normal state, the output terminal of the expansion board controlled by the elevator is in the disconnected state and does not receive the signal. When the reader reads the valid card, the corresponding output terminal turns on, press the elevator floor button, the corresponding output relay Action, the elevator logic controller receives the signal to start running.
Elevator control system principle
- Jun 05, 2017 -