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6.1.2 INSTALLATION INSTRUCTIONS
6.1.2.1 Introduction
WARNING!
NOTE:
IN ORDER TO ACHIEVE EQUAL LOAD SHARING BETWEEN THE UPS-CABINETS, THE INPUT CABLE
LENGTHS FROM THE INPUT DISTRIBUTION BOARD TO THE UPS AND FROM THE OUTPUT CABLE TO THE
OUTPUT DISTRIBUTION BOARD SHOULD BE THE SAME RESPECTIVELY.
WHEN CABLING THE UPS'S BEWARE TO CONNECT INPUT AND OUTPUT WIRES TO THE
TERMINALS, RESPECTING THE SAME PHASE SEQUENCE ON ALL UPS CABINETS.
EXAMPLE: PHASE1 OF UPS1 = PHASE1 OF UPS2 = ...... = PHASE1 OF UPS n
6.1.2.2 Paralleling of UPS-Cabinets
6.1.2.2.1
Connection of Parallel Communication Cables (BUS-lines)
For the correct performance of different parallel functions and operations the parallel units communicate
continuously between each other. This is achieved by means of the so-called communication BUS-Lines.
After terminating the input and output cabling of each single UPS, it is necessary to connect the units together to
form the parallel system. For this purpose a communication BUS line is connected sequentially between the units.
Connect communication BUS lines according to Figure 1.2.
!
NOTE!
1.
Fit the Parallel Adapter over the Connector JD8 on all UPS-cabinets
2.
Set DIP Switch SW2-2 on each Parallel Adapter depending on the UPS Cabinet in the parallel
cabinet configuration (see section 6 chapter 1.2.2.2)
3.
Connect PORT JD6 on Parallel Adapter of UPS-Cabinet 1and PORT JD5 of Parallel Adapter of UPS-
Cabinet 2 with the corresponding BUS-Cable;
4.
Connect PORT JD6 on Parallel Adapter of UPS-Cabinet 2 and PORT JD5 of UPS-Cabinet 3 with the
corresponding BUS-Cable
5.
Continue in the same manner for the remaining UPS-Cabinets.
UPS-Cabinet 1
Parallel Adapter
SW2-2
Master-Slave
Master-Slave
Output
Input
JD6
JD5
Figure 1.2.Connection of the Bus Lines when paralleling UPS-Cabinets by means of Parallel Adapters.
THE OPERATIONS DESCRIBED IN THIS CHAPTER MUST BE PERFORMED BY A
SERVICE ENGINEER FROM THE MANUFACTURER OR FROM A AGENT
CERTIFIED BY THE MANUFACTURER.
CONNECT THE BUS CABLES ONLY WITH SWITCHED OFF UPS AND OPENED
PARALLEL ISOLATORS IA2. RESPECT THE FOLLOWING CONNECTION
SEQUENCES.
UPS-Cabinet 2
Parallel Adapter
SW2-2
Master-Slave
Master-Slave
Output
Input
JD6
JD5
04-3004_S6_OPM_ABB_POWERSCALE_10-50 kVA_EN_150113.doc
Printed in Switzerland – Modifications reserved
UPS-Cabinet n-1
Parallel Adapter
Parallel Adapter
Master-Slave
SW2-2
Master-Slave
Master-Slave
Output
Input
JD6
JD5
Section-6
CORRESPONDING
UPS-Cabinet n
SW2-2
Master-Slave
Output
Input
JD6
JD5
Page 3/6 ABB
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