Endress+Hauser ria45, Краткое руководство по эксплуатации

Страница: 9 / 20

RIA45 Wiring
Hauser 9
4.4 Post-installation check
• Is the seal undamaged?
• Is the mounting frame securely fastened on the housing of the device?
• Are the threaded rods properly tightened?
• Is the device located in the center of the panel cutout?
• Is the spacer mounted (Ex option)?
5 Wiring
L
WARNING
Danger! Electric voltage!
‣
The entire connection of the device must take place while the device is de-energized.
‣
The protective ground connection must be established before all other connections. If the
protective ground is disconnected, this can be a source of danger.
‣
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.
‣
An overcurrent protection element (rated current ≤ 10 A) is required for the power cable.
• Observe the terminal designation on the front 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.