Installation Instructions; Paralleling Of Ups-Cabinets - ABB Conceptpower DPA 500 Operating Manual

of a unit is open that unit (module) is isolated from the rest of the parallel system and therefore does
not provide power to the output.
For example if you perform the command "LOAD TO BYPASS" on any unit, all the units will transfer
the load simultaneously to mains and if you perform the command "LOAD TO INVERTER" on any unit
all the UPS's will simultaneously transfer the load to the inverters.
The CONCEPTPOWER DPA
parallel systems.
IMPORTANT: The BYPASS MODE (ECO-MODE) function of a parallel systems is the same as in
single units of CONCEPTPOWER DPA
the BYPASS (load on mains) and if the mains fails, the UPS's will all be automatically transferred to
inverter within 5msec.
6.2.1

Installation Instructions

THE OPERATIONS DESCRIBED IN THIS CHAPTER MUST BE PERFORMED
BY A SERVICE ENGINEER FROM THE MANUFACTURER OR FROM AN
AGENT CERTIFIED BY THE MANUFACTURER
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
CORRESPONDING TERMINALS, RESPECTING THE SAME PHASE SEQUENCE ON ALL UPS CABINETS.
EXAMPLE: PHASE1 OF UPS1 = PHASE1 OF UPS2 = ...... = PHASE1 OF UPS n
6.2.2

Paralleling of UPS-Cabinets

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 14.
CONNECT THE BUS CABLES ONLY WITH SWITCHED OFF UPS AND
OPENED PARALLEL ISOLATORS IA2. RESPECT THE FOLLOWING
CONNECTION SEQUENCES.
WARNING
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 Figure 15)
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.
Modifications reserved
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500 is paralleled for redundancy (highest availability) or for power
TM
500. If in a parallel UPS system the load is transferred to
TM