Lantech IES-5416T Series, Руководство пользователя

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Pin assignment of alarm relay
A break in contact is reported via the relay contact :

The failure of at least one of the two supply voltages.

The break link status of at least one switch port.
3.1.4 Fitting the device, grounding
Install the system in a dry and clean area to protect the switch to
get exposed with dirt.
Plug the connector to the power supply plug then turn on the power
supply.

Ground
– IP67 model
The chassis is grounded via a separate ground nut (M3).
Use toothed locking washers for a good electrical connection.