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Electronic Safety Circuit

2017-08-16 12:15  
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Safety circuitis an electronic circuit that prevents malfunction by either sounding an alert or activating a trip circuit on a protective device.An elevator safety circuit has a series chain of contacts connected between at least one safety relay and an electric power supply and a monitoring device monitoring the voltage and current in the series chain.Because of the finite hold-on time of delay circuits Rl/Cl and R2/C2, both SI and  S2 must be pressed at the same time to power up the load.?Safety Relays have forcibly guided contacts to prevent NO and NC contacts from operating at the same time during contact welding, which enables detection of contact welding in the Safety Relay itself. This can be used in building safety circuits.
 

Safety Circuit Circuit