WirelessHART Adapter SWA70
5 Electrical installation
Hauser
33
3. Turn the coupling nut slightly in the counterclockwise direction to release the tension on the
cable gland.
4. Open the housing of the WirelessHART Adapter.
5. Guide the cable through the cable gland and into the housing.
6. Wire the cable with the appropriate terminals of the WirelessHART Adapter. See the "Wiring
diagrams for wide range power unit" section on Page
7. Tighten the coupling nut of the cable gland (torque 3.5 Nm).
8. If the field device is not put into operation immediately after wiring, close the housing of the
WirelessHART Adapter and the connection compartment of the field device. Tighten the
housing screws of the WirelessHART Adapter with a torque of 0.6 Nm.
5.2.4
Connection data at terminals
For the permitted connection data, see the "Terminal connection data" section on Page
103.
Note!
• On account of the internal communication resistor, the power supply of the field device varies
depending on the set current and terminal voltage.
5.2.5
Assignment of the terminals
For connection purposes, the WirelessHART Adapter contains a terminal block with screw terminals
1-6 and the 2 terminals 7 and 8.
Fig. 5-8: Assignment of terminals
Terminals
Description
1 and 2
• Field device power supply
• 4 to 20 mA/HART input
2 and 3
4 to 20 mA/HART input
4 or 5
High-impedance HART input/output terminals
3 or 6
High-impedance HART input/output terminals and ground
7 and 8
HART modem connection
1
2
3
4
5
6
Loop current
measurement
and HART-
communication
HART
communication
7
8
Loop current
measurement
1 – 2
Loop current
measurement
2 – 3
