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6. Operation Principles
6.2.6 ECO Mode
ECO Mode can be enabled through the LCD control panel. In ECO Mode, the load is diverted to bypass when the bypass voltage and
frequency are within their acceptable range. If the bypass voltage is out of range, the UPS will transfer the power source from bypass to
inverter. In order to shorten the transfer time, the rectifier and inverter will be operating when the UPS is in ECO Mode.
Q4
Maintenance Breaker
STS
Single
Input
Rectifier
Inverter
Main
Load
Q1
Inverter
Q3
Input Breaker
Relay
Output Breaker
Battery Breaker
Q4
Maintenance Breaker
STS
Bypass
Q2
Dual
Bypass Breaker
Inverter
Rectifier
Inputs
Main
Load
Q1
Inverter
Q3
Input Breaker
Relay
Output Breaker
Battery Breaker
ECO Mode Diagrams
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