6. Start-up is finished.
Figure 6.5 Start-up finished
6.2.2 Startup Procedures in ECO Mode
1. Open the front door of the UPS, ensure that the internal maintenance bypass switch Q3 is open, while the input
cables and copper bars are reliably connected.
W A RN IN G! In parallel UPS co nfiguration, all operations related to disconnection or connection
of the m aintenance bypass sw itch shall be executed w ith in three seconds to avoid overload
situations & dam age to the m aintenance bypass switch.
2. Close the output switch Q5, bypass input switch Q2, rectifier input switch Q1, and all external output isolating
switches (if any) of the UPS in turn.
At the moment, the system is powered on, and the startup screen pops up.
3. If ECO mode is required, contact Vertiv service engineer to set it through the setting software. If you wish to set it
by yourself, you can enable it through the sub-menu under 'SETUP' on the TOUCHSCREEN screen. For details,
refer to Operator Controls .
6 Single UPS Operation Introduction
109
Vertiv™ Liebert® EXM2 UPS User Manual
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