CNCR-110 • Two-wire 4-20
10
The device is supplied with a fixed cable. If an extension is
required, a standard two-wire cable
can be used.
5.2 Wiring Plan
Fig. 9: Wire assignment in permanently connected connection cable
Wire color
Function
Polarity
1
Brown
Voltage supply, signal output
Plus (+) 24 VDC
2
Blue
Voltage supply, signal output
Minus (-)
5 Connecting to power supply
5.1 Preparing the connection
• Electrical connection should be completed by trained, qualified personnel
• Authorized by the plant operator
• If overvoltage surges are expected, overvoltage arresters should be installed
Warning:
Only connect or disconnect in de-energized state.
Note:
Power the instrument via an energy-limited circuit (power max. 100 W)
acc. to IEC 61010-1, e.g.
• Class 2 power supply unit (acc. to UL1310)
• SELV power supply unit (safety extra-low voltage) with suitable
internal or external limitation of the output current