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45
6. Operation Principles
6.2 Operation Modes
This UPS is a 3-phase, four wire on-line, double-conversion and reverse-transfer UPS that permits operation in the following modes:
• Standby Mode
• Line Mode
• Battery Mode
• Bypass Mode
• Converter Mode
• ECO Mode
• Shutdown Mode
• Maintenance Bypass Mode (Manual Bypass)
6.2.1 Standby Mode
The UPS will enter Standby Mode (if BYPASS is disabled) until the UPS is turned on. When the UPS is powered on in Standby Mode, the
charger function will be active when the battery is connected. The load is not powered under this mode.
Standby Mode Diagrams
Q4
Maintenance Breaker
Q4
Maintenance Breaker
Q1
Input Breaker
Q1
Input Breaker
Q2
Bypass Breaker
Inverter
Relay
Inverter
Relay
Q3
Output Breaker
Q3
Output Breaker
Rectier
Rectier
Battery Breaker
Battery Breaker
Inverter
Inverter
STS
STS
Load
Load
Main
Main
Bypass
Single
Input
Dual
Inputs
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