3 Operations
3.1 Operation Mode
This UPS is a 3-phase, 4 wire on-line, double conversion UPS that permits operation in the following modes:
• Standby Mode
• Line Mode (AC Mode)
• Battery Mode
• Bypass Mode
• ECO Mode
• Shutdown Mode
• Maintenance Bypass Mode (Manual Bypass)
3.1.1 Standby mode
When the UPS is connected to the utility input power and the BYPASS enable setting is disabled, the UPS will be in standby
mode until it is turned ON. The charger function will be activated when the battery is available. The load is not powered in this
mode.
Figure 3.1 Standby Mode Diagram
3 Operations Proprietary and Confidential ©2024 Vertiv Group Corp. 29
Vertiv™ Liebert® MTP Online UPS User Manual 20-40-80kVA
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