How To Diagnose Fault In Elevator Bistable Switch?

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What is a bistable switch?

Bistable switch is a switch device with two stable states—–Normally close(N/C) or normally open(N/O). It’s used widely at elevator speed control systems, especially in the speed control of NICE900 and Panasonic door machine.

KCB-A/KCB-B/MKG131-0 Elevator Bistable Switch

 

How to diagnose faults in your elevator bistable switches?

The bistable switch is one of the elevator safety protection devices. Once a malfunction occurs, it can affect the normal operation and  prevent injury or accidents. In order to check the condition of elevator bistable switch, you need to take the following steps:

First, turn off the elevator power and disconnect the power switch.

Then, open the elevator control box and check if the appearance of the switch is damaged or deformed.

Next, use a multimeter to test the conductivity of the switch and ensure that it is in normal working condition. If the switch has a leak or is non-conductive, you must replace or repair it.

Finally, to get things moving again, let’s restart the elevator and check whether the switch is functioning properly or not.

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elevator accessories supplier,Elevator Bistable Switch Supplier,elevator spare parts manufacturers
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