Safety function

Photocell protection

l  In the door open and shut period, infrared light that covers the whole door height is used to probe the door protection device of both the passengers and objects.

Designated stop

l  If the elevator can not open the door in the destination floor out of some reason, the elevator will close the door and travel to the next designated floor.

Overload holding stop

l  When the car is overload, the buzzer rings and stops the elevator in the same floor.

Anti-stall timer protection

l  The elevator stops operation due to slippery traction wire rope.

Start protection control

l  If the elevator does not leave door zone with in the designated time after it gets started, it will stop the operation.

Inspection operation

l  When the elevator enters into inspection operation, the car travels at inching running.

Fault self-diagnosis

l  The controller can record 62 latest troubles so as to quickly remove the trouble and restore the elevator operation.

Repeated door closing

l  If the elevator can not close the door due to certain obstacle or interference, the elevator will reopen or re-shut the door until sundries are eliminated.

Up/down over-run and final limit protection

l  The device can effectively prevent the elevator from surging to the top or knocking the bottom when it is out of control. It results in more safe and reliable elevator travel.

Down over-speed protection device

l  When the elevator downs 1.3 times higher than the rated speed, this device will automatically cut off control mains, stop the motor running. Safety tongs act to force the elevator stop in order to ensure the safety.

Upward over-speed protection device

l  When the elevator up speed is 1.3 times higher than rated speed, the device will automatically decelerate or br