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There are two wires, black and red, and black to GND red to the power supply +12VDC. When you disconnect any line, the lock will automatically retract and the door will be open. Two-wire electric lock, the design is relatively simple, there is no single-chip control circuit, the lock body is also more prone to heat and hot, the current is relatively large, is the lowest level of the electric plug lock products is also one of the most widely used products in municipal applications.
The application and principle of the lower latch
Two-wire electric plug lock :
5-wire electric plug:
The principle of the four-wire electric mortise lock is the same, but the opposite signal of the pair of door magnets is used for some special occasions. The formal occasion is rather troublesome, and the engineer should test which pair to use.
The red and black lines are the power source. There are also three lines of COMNONC, NO and NC respectively form two pairs of signals opposite to COM (a set of closed signals, a set of open signals). When the door is opened, the closing signal becomes an open signal and a group of open signals becomes a closed signal.
8-wire electric plug:
The principle is the same as the 5-wire electric plug. In addition to the gate state output, the lock state output is also added.
The electric plug lock is divided into two-wire electric plug lock, four-wire electric plug lock, 5-wire electric plug lock, and 8-wire electric plug lock.
The electric plug lock has a delay control, that is, there is a dial switch on the lock body, and the delay time for closing the door can be set. Usually it can be set to 0 seconds, 3 seconds, 6 seconds, 9 seconds. Each brand's locks are slightly different in length.
The electric mortise lock is also called "anode lock". In fact, it is only one type of "anode lock", which is an electric lock that opens the door when the power is off. Because in accordance with the fire requirements, in the event of a fire, the building will automatically cut off the power, the electric lock should be opened to facilitate people to escape, so the performance of the electric lock is power off unlock (open the door).
The access controller and the access control software set the "open door delay", or "door delay", which refers to how many seconds after the electric lock is opened, it automatically closes.
The delay of the electric mortise lock is the door closing delay, which means how long after the door is in place, the lock is down and the door is locked. Generally, the access control system requires the door to be closed, the lock is down, and the door is closed. Therefore, the electrical lock delay is set to 0 seconds by default. Some doors, the ground spring is not good, the door swayed a few times before and after the door closed position, the door was set, this time if set to 0 seconds, the lock has not had time to hit the keyhole, the door swayed over, the door is When you sway back, you will have a lock that has been stretched out. In this case, you can set a door closing delay, make the door sway a few times, stabilize it, lock it down, and close the door.