Pepperl+Fuchs HCD2-FBPS Series Manual page 20

Fieldbus Power Hub,Motherboard for Gateway and Power Supply Modules
Installation and Commissioning
Diagnostic Bus Connection with Spring Terminal
+
Alarm
Each motherboard has 2 identical diagnostic bus terminals facing each other with inverted
connections.
Alarm
+
-
Connecting the Power Supply
The motherboard is connected to the bulk power supply via designated screw or spring
terminals.
Power Supply with Screw Terminal
+
+ PWR
- PWR
Power Supply with Spring Terminal
+ PWR
- PWR
Grounding
The motherboard is connected to the earth via designated screws.
If needed, an optional grounding rail can be applied.
The torque required for tightening the grounding screws: 1.5 Nm
20
− + −
RS-485
Alarm signal lines
Diagnostic bus +
Diagnostic bus -
-
+ −