2014-10
10
Compact Fieldbus Power Hub,Generic Interface
Specification
2.2 System Components
2.2.1 Motherboard
MBHC-FB-8R*
The motherboard MBHC-FB-8R* enables the redundant supply of 8 segments and the
connection of the FOUNDATION Fieldbus H1 host system. 16 sockets hold the power supply
modules, with 2 each supplying 1 of the 8 segments redundantly. 2 extra sockets hold
diagnostic modules.
■ MBHC-FB-8R: Motherboard equipped with screw terminals.
■ MBHC-FB-8R.1: Motherboard equipped with spring terminals.
2.2.2 Power Supply Modules HCD2-FBPS-*
Power supply modules provide full galvanic isolation between the bulk power supply and the
segments. They provide optimum system reliability for applications where cabling and wiring
are routed through critical or harsh electrical environments. Power supply modules are the best
choice in situations, where full protection from electromagnetic interference (EMI) is
mandatory.
Power modules are connected to the motherboard via sockets. They can be exchanged while
the system is in operation. In redundant configuration, load is shared between 2 power
modules.
For different application requirements, special power supply modules are available:
Local and remote alarm annunciation. Easy maintenance and troubleshooting.
Tolerance against inrush currents during
segment start.
Long-term, robust operation with tolerance
towards field device misbehavior.
Full current span operation from 10…500 mA. Flexible segment design and tolerance
against live working on field devices.
Advanced diagnostic module for physical
layer fieldbus diagnostics.
Improved and known quality of fieldbus
installation. Live supervision for preventive
and pro-active maintenance. Professional
tools for easy fieldbus troubleshooting.
Features User benefit
Note!
If the motherboard is intended to be used with dedicated power supply modules and Segment
Protectors to generate Ex ic rated outputs, a connector cover has to be mounted on each
power supply terminal. 2 connector covers and special connectors come with each
motherboard.
Designation Application
HCD2-FBPS-1.500 Ex ic
HCD2-FBPS-1.23.500 Ex ic
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