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Passenger­ lift lighting

The function of the lighting in a passenger lift is monitored. If all lights fail, the lift may no longer be used
Industry:
Conveyor and transport systems
Series/Measures
Current monitoring
Product:
E3IM10AL20
Data sheet:
Task:
The function of the lighting in a passenger lift is monitored. If all lights fail, the lift may no longer be used.
Solution
The E3IM is configured with the “under” function so that the current from a single lamp will exceed the threshold and trip the output relay. If the last lamp in a lift car fails, it may not be operated for legal reasons. The current monitoring relay provides this “zero current detection”.
Use/value:
- Meets the legal requirements by detecting lamp failures

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