Electrical Installation - ABB Conceptpower DPA 500 Operating Manual

4.2

Electrical installation

The electrical installation procedure is described in the following. The installation inspection and initial
start-up of the UPS and extra battery cabinet must be carried out by a qualified service personnel
such as a licensed service engineer from the manufacturer or from an agent certified by the
manufacturer.
THE INSTRUCTION IN THIS USER MANUAL HAVE ALWAYS TO BE
FOLLOWED IN ORDER TO AVOID INJURIES FROM ELECTRICAL IMPACTS.
ALL THE OPERATIONS IN THIS MANUAL MUST BE PERFORMED BY
AUTHORISED ELECTRICIANS OR BY QUALIFIED INTERNAL PERSONNEL.
DO NOT OPERATE IN CASE OF PRESENCE OF WATER OR MOISTURE.
BY OPENING OR REMOVING THE FRONT COVERS BEHIND THE UPS
WARNING DOOR, YOU RUN RISK OF EXPOSURE TO HAZARDOUS VOLTAGES.
PHYSICAL INJURY OR DEATH MAY FOLLOW, OR DAMAGE MAY OCCUR
TO THE UPS, OR THE LOAD EQUIPMENT IF THESE INSTRUCTIONS ARE
IGNORED
To ensure correct operation of the UPS and its ancillary equipment it is necessary to provide the
appropriate wiring and with fuse protection in accordance with the prescribed local standards
or with the local regulations/law. Alternatively refer to the suggested appropriate wiring and fuse
protection in the next chapter
The UPS unit has the following power connections:
Rectifier input: three-phase (1-L1, 1-L2, 1-L3)
Bypass input :three-phase (2-L1, 2-L2, 2-L3)
Neutral (N) The Neutral connection at UPS input (upstream) is mandatory.
Load output : three-phase (3-L1, 3-L2, 3-L3)
Battery: (+) and (-) Note: The battery (-) is at the same potential and is the same connection point as N.
Protective earth (PE)
INPUT NEUTRAL IS REQUIRED TO OPERATE THE RECTIFIER.
In TN-S Systems, no 4-pole input switches or circuit breakers should be used. If
you have to use for other reason a 4-pole switch, you have to be aware that,
when open, the system - UPS and all downstream equipment - are floating
against the PE.
NOTE
Modifications reserved
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4.3.