To the elevator control and inverter system, the Automatic Rescue Device(ARD) is an additional emergency power system. In case of power failure, the ARD will automatically enable within a preset period, control the elevator to move towards the light-loaded direction, and then stop on the nearest floor to let passengers out.
If you can tell us more information like below,that can help us to service you quicker and better.
Control system supplier : .......
Input Voltage: ...........
Normal Output Voltage: .............
Rated Rescue Output Voltage: .............
Invert or Motor Power: ....................