Emerson Smart Wireless THUM Adapter Installationshandbuch PDF herunterladen (Seite 33)

Reference Manual

00809-0100-4075, Rev CA

Section 3: Mounting

March 2014

Mounting

Figure 3-21. Wiring diagram for 4-wire passive device

Figure 3-22. Wiring diagram for 4-wire passived device with resistor

Note

An active loop exists when the wired device is supplying power to the 4-20 mA loop. It is

important to verify if the wired device is operating in an active or passive mode.

Figure 3-23. Wiring diagram for 4-wire active device

Splice Connector

Wired Device

4-20 mA Loop -

4-20 mA Loop +

Ground

Power +

Power -

THUM Adapter

Green

Red

Black

White

Yellow

Power+

Power-

4-20 mA/HART -

4-20 mA/HART +

Splice Connector

Wired Device

4-20 mA Loop -

4-20 mA Loop +

Ground

Power +

Power -

THUM Adapter

Green

Red

Black

White

Yellow

Power+

Power-

4-20 mA/HART -

4-20 mA/HART +

Resistor

Splice Connector

Wired Device

4-20 mA Loop -

4-20 mA Loop +

Ground

Power +

Power -

THUM Adapter

Green

Yell ow

White

Black

Red

Power+

Power-

4-20 mA/HART -

4-20 mA/HART +

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