Endress+Hauser RIA45 Kurzanleitung Seite 33

RIA45
5 Wiring
WARNING
L
Danger! Electric voltage!
‣
The entire connection of the device must take place while the device is de-energized.
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The ground connection must be made before all other connections. Danger if protective
ground is disconnected.
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Before commissioning the device, make sure that the supply voltage matches the voltage
specifications on the nameplate.
‣
Provide suitable switch or circuit breaker in building installation. This switch must be
provided close to the device (within easy reach) and marked as a circuit breaker.
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Provide overload protection (nominal current ≤ 10 A) for power cable.
• Observe the terminal designation on top of the device.
• It is permitted to connect a mixture of safety extra low voltage and voltage which
poses a shock hazard to the relays.
5.1 Connecting the device
A loop power supply (LPS) is provided for every input. The loop power supply is primarily
provided to supply power to 2-wire sensors and is galvanically isolated from the system and
the outputs.
Endress+Hauser
Wiring
33