Electrical Connection To Other Devices - Pepperl+Fuchs WHA-ADP Series Manual

WHA-ADP-*
Installation
3.3

Electrical Connection to other Devices

The WirelessHART adapter can be connected to the following device types/configurations:
• Field device operating in a control loop without communication resistor,
Field device operating in a control loop with communication resistor – this configuration
•
is used for HART multidrop with 2, 3 or 4 devices,
• Two-wire field device operating independently with power supplied by the adapter,
• Four-wire field device operating independently with power supplied by an external
source.
The devices are connected to the terminal block located inside the adapter housing.
Figure 3.7: Terminal block (1 ... 6) and terminals for HART modem (7 + 8)
Terminal
1
2
3
4
5, 7
6, 8
Function
Device supply
HART/4 ... 20 mA
External Supply/GND
HART high impedance
HART high impedance
High impedance GND
21