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VIII. After defining the UPS number and N value from the Configuration Menu, switch off the UPS
and similarly configure the other parallel UPS’s in the system. Followingly switch off each ups again.
Each ups number should be different. Under this menu; Parallel-1, Parallel-2, Parallel-3 and Parallel-
4 options are available. Maximum 4pcs of UPS can be connected in parallel and at the systems
where 4 UPS’s operate in parallel, each ups’s numbers should be different, defined from 1to 4.
(note: if the ups’s are factory parallel configured then each ups’s number has been already defined,
please check and control this )
IX. After completing the configuration the Numbers of each ups and N values, switch on the F1
input fuse then F4 Bypass Fuse (if the UPS is splitt bypass version) and F6 Inrush Fuse respectively
on each parallel UPS’s.
After seeing “Normal” message on the LCD panel, F5 Battery fuse can be switched on.
Then the output fuses can be switched on followingly.
The system (all ups’s in parallel configuration) will start operating from static bypass initially, then
they will start supplying the load from inverter.
X. The initially started up UPS will operate as master and the remaining UPS’s will operate as slave.
According the numbers defined for each ups, on the LCD panel, MAS (master) and SLAVE (1,2,3,4)
messages should be observed. On the master unit, candidate master UPS is also shown as CX.
C represents the best available master candidate ups among the slave ups’s and X represents the
number of the slave UPS. In case the master ups fails, then this candidate assigned UPS becomes
master.
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