Product Introduction
8 Modular UPS 25KVA~900KVA User Manual
Fig .2-7 Maintenance mode operation diagram
Danger
During Maintenance mode, dangerous voltages are present on the terminal of input, output and
neutral, even with all the modules and the LCD turned off.
2.3.5 ECO Mode
To improve system efficiency, UPS rack system works in Bypass mode at normal
time, and inverter is standby. When the utility fails, the UPS transfers to Battery Mode
and the inverter powers the loads.
Fig.2-8 ECO Mode operation diagram
Note
There is a short interruption time (less than 10ms) when transfer from ECO mode to battery mode,
it must be sure that the interruption has no effect on loads.
