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3: Installation
Dual Input Feed
Refer to the schematic drawing and connection table in Figure 3.6.
1.
The UPS is supplied (as standard) with facilities for a single cable feed for the rectifier and bypass
supplies. For a dual feed configuration remove the links between 1L1 - 2L1; 1L2 - 2L2; 1L3 - 2L3 and 1N
- 2N, on the input terminal block.
2.
Connect the UPS input supply cables to terminals 1L1, 1L2, 1L3 and 1N on the UPS main terminal block.
Ensure correct (clockwise) phase rotation.
3.
Connect the UPS bypass supply cables to terminals 2L1, 2L2, 2L3 and 2N on the UPS main terminal
block. Ensure correct (clockwise) phase rotation.
4.
Secure the cables to the fixing rail located under the UPS connection terminals.
Note:
The UPS commissioning engineer will configure the UPS system for a dual input operation at the time
of commissioning.
3.9
Connecting the UPS output
3.9.1 Safety notes
Ensure you read and understand the following safety notes before you begin the UPS electrical installation.
1.
All operations detailed in this section must be performed by an authorised electrician or qualified/
approved personnel.
2.
Once the electrical installation is completed the initial UPS start-up and commissioning must be
performed by qualified personnel authorised by the manufacturer.
3.
Do not operate the UPS if there is water or moisture present.
4.
When carrying out any work on the UPS output power cables you must ensure that the UPS supplies are
isolated at the supply distribution panel and, where possible, locked out. Warning notices should be
posted where applicable to prevent inadvertent operation of the input supply isolators.
3.9.2 Preparation for the output cabling
Circuit breakers (or equivalent protection) must be fitted between the UPS output and load equipment to
provide additional protection to the UPS in the event of an overload or short circuit, and also provide a means
of isolating individual loads if required.
Before you start connecting the UPS output cables to the load distribution panel:
• Ensure that the potential load does not exceed the UPS model output power rating (OUTPUT
POWER) on the nameplate.
• Ensure the output circuit breakers are correctly sized with respect to the load rating and associated
cabling.
• The maximum total load rating and maximum load rating of the individual load sockets should be
indicated on the output distribution board.
• The circuit breakers must comply with the prescribed IEC Standards. It is recommended that a
separate output distribution board is provided for the load.
3-8
CAUTION: The input Neutral cable must ALWAYS be connected.
CAUTION: The bypass Neutral cable must ALWAYS be connected.
WARNING: Opening or removing the UPS enclosure covers will create the risk of exposure to
dangerous voltages if power is connected to the UPS.
UPS306-01-00 PowerWAVE 9000 DPA User Manual Dated 01-06-2010
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