Wiring Diagrams - Pepperl+Fuchs WHA-ADP2-F8B2 Z1 Series Manual

WHA-ADP2-F8B2-*-**-Z1(-EX1)
Installation
3.3.1

Wiring Diagrams

Control loop without communication resistor
In this configuration, the field device is powered externally by a PLC, Remote I/O, or DC power
supply and outputs a 4 ... 20 mA signal.
The adapter provides the following functions:
Current measurement via 4 ... 20 mA interface
HART digital communication, if supported by the connected device
For communication with the adapter, an Ex ia certified HART modem can be connected to
terminals 5/7 and 6/8.
Note!
The connection is made across the 270 Ω communication resistor of the adapter.
The circuits in the following 2 figures are electrically identical as terminal 4 and 5 are connected
internally.
see Figure 3.10 on page 22
see Figure 3.11 on page 23
For loops with two signal lines, the adapter should be wired as shown in the following figure.
Figure 3.10
1 PLC, Remote I/O,DC power supply without communication resistor
2 Field device (passive)
For loops with only one signal line (common ground), the adapter should be wired as shown in
the following figure.
22
Connection of adapter to a control loop without communication resistor