Freight Elevator VVVF

Group selection control

Group selection controlling without the presence of operator

Reopen with hall call

In the door shutting process, press reopen with hall call button can restart the door.

Car stops and door open

The lift decelerates and levels, the door only opens after the lift comes to a complete stop.

Automatic returning to the base station

When the traffic flow is low,  lift without receiving commanding signals will automatically return to

the base floor and standby with the door closed.

Directly running

Under the operator's control, after the direct running button is pressed, the lift only runs directly according to the directives from inside the car and does not respond to any calls from outside.

Automatic pass without stop

When the car is crowded with the passengers or the load is close to preset value, the car will automatically pass the calling landing in order to keep maximum travel efficiency.

Repeated door closing

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

Power on re-leve ling

A power failure might cause the lift to stop between two floors. However, upon recovery of the power, the car automatically moves to the nearest leveling floor.

Overload holding stop

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

Start protection control

If the lift does not leave door zone within the designated time after it gets started, it will stop the operation.

Inspection operation

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

Up/down over-run and final limit

protection

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

Down over-speed protection  device

When the lift downs 1.2 times higher than the rated speed, this device will automatically cut off control mains, stop the motor running so as to stop lift down at over-speed.  If the lift continues to down at over-speed, and the speed is 1.4 times higher than rated speed, safety tongs act to force the lift stop in order to ensure the safety.

Upward over-speed protection device

When the lift up speed is 1.2 times higher than rated speed, the device will automatically decelerate or brake the lift.

Photocell protection

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.

Emergency car lighting

Emergency car lighting automatically activated once power failure.

Five way intercom

Communication amid car, car top, lift machine room, well pit and rescue duty room through walkie-talkie.

Bell

In emergency conditions, if bell button above car operation panel is continuously pressed, electric bell rings on top of the car.

Fire emergency return

If you start key switch in main landing or monitor screen, all the callings will be cancelled.  The lift directly and immediately drives to the designated rescue landing and automatically opens the door.

Micro-touch button for car call and hall call

Novel micro-touch button is used for operation panel command button in the car and landing calling button.

Floor and direction indicator inside car

The car shows the lift floor location and current travel direction.

Floor and direction indicator in hall

The landing shows the lift floor location and current travel direction.

Car assistant operation box

It is used in the large loading weight lifts or the lifts with crowded passengers so that more and more passengers can use the car.

Car ventilation,

light automatic shut off

If there is no calling or command signal within the stipulated time, the car fan and lighting will be automatically closed in order to save the energy.

Remote shut-off

The lift can be called to main landing (after finishing the service) through the key switch and automatically exists the service.