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Centric 3x480 Vac, Installation Guide, rel. 2.2
67
Figure 69: The main menu screen
6.
Put the UPS in multisystem mode:
Main menu > Setup > System > Multisystem mode.
(In the event that this option is blocked, consult your distributor or sales agent to obtain the needed
password.)
7.
Now turn on the other parallel system or systems. These will be the “slave” systems.
You can have up to four systems in a parallel configuration. Once the master system has completed
the start-up process (step 6 above), the remaining systems (slave systems) can be switched on
together. Wait until they finish start-up and verify that each system is in “Normal” mode and has no
active alarms.
8.
Put the slave systems in multisystem mode (Main menu > Setup > System > Multisystem mode).
9.
For each slave system, compare the output voltage of each phase to that of the master system.
Any voltage difference should be no greater than 2 Vac.
If the difference in output voltage is greater than 2 V for any phase, navigate to the “Main Menu >
Status” screen, tap the “Modules” icon, and then tap the “output” button at the bottom of the page.
You will see the ac output voltage display, per module. By tapping on each of the module icons on the
left side of the screen you can see which modules have an output voltage that is more than ±2 V
different from the master system.
