For Mains Supply, Auxiliary Mains Supply, Output, Battery Circuit Breaker And Maintenance Bypass Circuit 6.3.2. Power Connections Of Parallel Systems - LEGRAND KEOR T EVO 10-60 KVA Installation & Operation Manual

6.3.2. Power Connections of Parallel Systems
• The protection devices must be chosen properly as defined in Section 5.4 considering total parallel UPS power.
• Please check 6.3.1. Power Connections of Single Systems for detailed connection information.
• The cross section and length of the input and output cables must be identical for all units.
Important Notices!
• The phase rotation must be the same for each unit connected in parallel and also on any external manual bypass
line.
• Make sure that electrical connections and the communication cabling (CANBUS) have been made as shown in
Thank you for choosing LEGRAND UPS System to supply your Critical Application.
below diagrams. You may connect all 8pcs parallel UPS following these diagrams.
• For power connection and block diagram; refer to Appendix-6: Description of UPS and Block Diagram.
This manual contains important information about commissioning, usage and technical properties of the
UPS. It also contains safety information for operator and instructions to secure your critical load. Applying
the recommendation detailed in this manual is necessary to use UPS safely and correctly.
Parallel configuration must only be activated by LEGRAND UPS Technical Service
Personnel.
CAUTION: Do not remove the communication cables between the UPS's during
Parallel Operation.
Read the manual completely before working on this equipment!
Keep this manual in UPS's front cover's pocket for easy consultation!
Reproduction, adaptation, or translation of this manual is prohibited without prior
written permission of LEGRAND Company, except as allowed under the copyright laws.
The manufacturer reserves the rights to change the technical specifications
and design without notice.
LEGRAND reserves the rights to change the information in this document
without notice. Refer to http://ups.legrand.com/ web site to dowload last
release and translations.
Units that are labelled with a CE mark comply with the Standard: EN 62040-1 and EN 62040-2.
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CANBUS CONNECTION OF TWO PARALLEL UPS
CANBUS CONNECTION OF THREE AND MORE PARALLEL UPS
Figure.6.3.2-1
Figure.6.3.2-2