Pepperl+Fuchs HD2-DM-A Manual page 47

Advanced Diagnostics
Hardware Installation
1.
Connect the ground cable to a cable lug.
2.
Position the cable lug over the grounding terminal with the cable pointing downwards.
3.
Screw the cable lug to the grounding terminal with 2 detent-edge washers inserted between
screw, lug, and terminal as illustrated:
Figure 4.7
1 Screw
2 Toothed lock washer
3 Cable lug
4 Grounding terminal on motherboard
4.
Tighten the screw with a torque of 1.5 Nm.
The cable lug is properly attached and cannot come loose.
Connect the "Shield/Screen GND" grounding terminal of the motherboard to an equipotential
bonding system.
4.4 Volt-Free Contact Installation
The FDS/OPC integration and the FOUNDATION Fieldbus integration provide the functionality
to configure the advanced diagnostic modules, to analyze the measured fieldbus physical layer
data and to send alarms to a PCS. For the alarm integration, a volt-free contact can also be
used for both integration methods.
The alarm contacts are NC contacts. The alarm contacts are closed, if no alarm is active and
the contacts are opened if an alarm is active.
The volt-free contact alarming is built into the ADM HD2-DM-A and also supported by the diag-
nostic gateway. The installation depends on the diagnostic gateway and the integration method
used.
Note
Use a cable with a minimum cross section of 4 mm².
Connecting the ground connection cable
1
2
3
2
4
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