22 PowerValue 11 RT 6-10kVA
| User manual
Figure 28: Parallel system installation diagram
5. Turn on the mains breakers and the input (I/P) breakers
for the two parallel UPS.
6. Keep the power-on button pressed for longer than 1
second in one UPS. The system will start up and go to
online-mode.
7. Regulate the output voltage of each UPS separately and
check that the output voltage difference between the two
UPS units is lower than 0.5V.
•
If the output voltage difference is higher than 0.5V, the
UPS voltage needs to be regulated.
•
If the output voltage difference is lower than 0.5V,
switch on the output breakers for both UPS units
separately and switch on the main output (O/P)
breakers.
8. Transfer the mains mechanical or static switch to the
UPS. The system will then run in parallel.
Mains
Maintenance bypass for parallel systems
Mains input breaker
UPS input breaker
UPS output breaker
UPS input breaker
UPS output breaker
Mains output breaker
Mechanical or status switch
Load