Product Description; Operation; Configurations; Figure 1 Block Diagram -48V Fed Cps3200U Shelf - ABB CPS3200U Product Manual

2. Product Description

Operation

Power comes in as -48V and is distributed in an A and B redundant fashion to each of the converter
cards and the alarm card. There are two +/-190V circuits on each converter card. The circuits both
boost the voltage and limit the current as prescribed by UL60950-21 and GR-1089-CORE.
Warning: Ground faults or short circuits on the output do not permanently disconnect the output. The
converter circuit tests the line every 4 seconds and will re-energize if the wiring fault is cleared.
A serial communication bus links each converter to an alarm card at the end of each shelf.
The alarm card provides major and minor form C contacts, manages the converters and relays
information to a ABB Power CPS6000 family controller using Galaxy Protocol over an RS485 bus. Up to
24 shelves can be controlled and monitored by one CPS6000 family controller. The CPS6000 controller
is WEB and SNMP capable.

Configurations

32 circuit, front access +/-190V shelves come in two configurations - airflow from bottom to top and
airflow from top to bottom. A single IP drop can be used to manage up to 24 shelves or 768 circuits.
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Figure 1 Block Diagram -48V Fed CPS3200U Shelf

Basic block diagram of single converter shelf System