Electrical Connection To Other Devices - Pepperl+Fuchs WHA-ADP2-F8B2 Z1 Series Manual

WHA-ADP2-F8B2-*-**-Z1(-EX1)
Installation
4. Thread the cable entry through the hole in the mounting bracket such that the antenna is is
on the side farthest away from the wall.
5. Remount the counternut and screw until the adapter is loosely held.
6. Align the adapter so that the antenna is vertical.
7. With the cable entry nut held with a spanner, tighten the counternut (torque 7 Nm).
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 3.9
Caution!
Loss of intrinsic safety
If Ex i protected circuits have been operated with non-intrinsically safe circuits, they must no
longer be used as Ex i protected circuits.
To maintain the Ex i rating of the WirelessHART adapter, use an Ex i rated HART modem to
communicate with the WirelessHART adapter.
Terminal
1
2
3
4, 5, 7
6, 8
Terminal block (1 ... 6) and terminals for Ex ia certified HART modem (7 + 8)
Function
Device supply
HART / 4 ... 20 mA
External Supply / GND
HART high impedance
High impedance GND
21