Wiring; Electrical Connection - Endress+Hauser RMA42 Handbuch

Wiring

5 Wiring
WARNING
L
Danger! Electric voltage!
‣
The entire connection of the device must take place while the device is de-energized.
‣
The ground connection must be made before all other connections. Danger may arise if the
protective ground is disconnected.
‣
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.
‣
Overcurrent protection (rated current ≤ 10 A) is required for the power cable.
• Observe the terminal designation on the side of the device.
• The mixed connection of safety extra-low voltage and dangerous contact voltage to the
relay is permitted.
5.1

Electrical connection

A loop power supply (LPS) is provided for every input. The loop power supply is primarily
designed to supply power to 2-wire sensors and is galvanically isolated from the system and
the outputs.
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RMA42
Endress+Hauser