3.1.5 ECO mode
The ECO mode can be enabled through the settings menu of LCD panel. When the bypass voltage and frequency are within
acceptable range, the load is powered by bypass in ECO mode. The UPS will transfer the power source of load from bypass to
inverter if the bypass is out of range. When the UPS is in ECO mode, the rectifier and inverter are turned on to reduce the
transfer time.
Figure 3.5 ECO Mode Diagram
3.1.6 Shutdown mode
When the UPS is in the OFF state and the utility power source is not available, the UPS will enter into shutdown mode.
Alternatively, the UPS will enter into shutdown mode once the battery has been discharged to the cut off level. The UPS will
turn OFF the control power when it enters this mode. The rectifier, charger, and inverter are all in the OFF state.
Figure 3.6 Shutdown Mode Diagram
32 Proprietary and Confidential ©2024 Vertiv Group Corp. 3 Operations
Vertiv™ Liebert® MTP Online UPS User Manual 20-40-80kVA
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