04-3275_OPM_ABB_CONCEPTPOWER_DPA_500kW_EN_REV-A.docx
Page 30/78 ABB
Modifications reserved
6 OPERATION
6.1 COMMISSIONING
The Conceptpower DPA 500 is a high quality electronic UPS, that must be commissioned by a fully trained and
certified field service engineer before being put into use.
The commissioning of the UPS involves the connection of the UPS and battery, the checking of the electrical
installation and operating environment of the UPS, the controlled start-up and testing of the UPS and customer
training.
WARNING!
OPERATIONS ON THE UPS MUST BE PERFORMED BY A SERVICE
ENGINEER FROM THE MANUFACTURER OR FROM AN AGENT
CERTIFIED BY THE MANUFACTURER.
6.2 MULTI-CABINET CONFIGURATION
The
CONCEPTPOWER DPA 500
Cabinets may be paralleled for power capacity or for redundancy indefinitely.
Every standard
CONCEPTPOWER DPA 500
is provided with the parallel option and therefore no time-
consuming upgrading is necessary on site.
power connection
parallel cable
Multidrop cable
Figure 13: Multi-Cabinet Configuration
The Multi-Cabinet Chain is based on a decentralized bypass architecture i.e. every UPS is provided with its own
static bypass. In a parallel system there is always one Master Module and the other Modules are slaves. If at any
time the master is faulty the next UPS (former slave) will immediately take over the master function and the former
master will switch off.
Every UPS unit in a parallel configuration is provided with a proper output parallel Isolator (IA2) which, when
opened isolates the corresponding unit from the parallel system. Once the parallel isolator (IA2) 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.
to the load
