XMART Optima RT9 10K - Manual (Page 19)

User Manual
- ONLINE 6K/10K RACK-TOWER ISOTX UPS
ENGLISH
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www.xmart-ups.com 130717 RT9- 6K-10K (ENG) - 19
5.- UPS INSTALLATION: PARALLEL UPS - TERMINAL BLOCK .
GENERAL COMMENTS FOR PARALLEL SYSTEMS
 6K y 10KVA models allow installation of up to 3 units in parallel.
 Units to work in parallel must be connected as indicated in this section.
 Parallel system must be configured and started up according to instructions given dedicated section of this
manual.
 Any mistake in connection, configuration or starting up procedure could produce permanent damage UPS
PARALLEL UPS CONNECTION
 Make sure the UPS is Off before starting the installation
 Remember to check all wires to be connected (including external batteries)
 are not powered before manipulating them.
UPS TERMINAL BLOCK PREPARATION
Remove cover of terminal block at the UPS rear panel.
DO NOT use a wall power outlet to plug UPS to AC Line as usually ratings of this kind of outlets are not enough to power 6KVA UPS.
UPS Input wire must be connected directly to electric panel board.
UPS INPUT AND OUTPUT CONNECTIONS
First, connect ground wires. Ground wires must be FIRST to be connected and LAST to be disconnected.
a) Grounding Wires: Connect AC ground of both UPS according to figures.
b) AC Input Wires: AC Input wires must come from individual electrical circuit breakers on electrical panel board before being
connected to UPS terminal block.
c) AC Output Wires: AC output wires must be connected directly to external circuit breakers of bigger capacity.
d) If UPS is EX model, external battery banks must be connected to dedicated connector located in rear panel of UPS.
e) Control Cables for Parallel Connection: Connect Parallel Cable and shared current according to figures.
WARNING – EXTERNAL BATTERIES:
If UPS to be connected in parallel have external batteries it is mandatory each UPS counts with its own battery pack.
Parallel connection cannot be performed if only one of two (or two or three) UPS have external batteries. Permanent
damages will be produced in UPS if this warning is not followed.