Owner manual

1.2 Mode description

Bypass mode

Bypass mode means that the UPS provides the power through the

internal bypass way to load directly without any regulation. If the

controller detects the mains is abnormal, it will shut off the output to

protect the load. The bypass voltage/frequency range and default

output status (on/off) could be set by communication software.

Line mode

Line mode means that the mains input is rectified/converted by the

AC/DC section and then inverted to stable output by DC/AC section.

In line mode, the output is clean and good to the loads. If the mains

get abnormal, the UPS will transfer to battery mode without interrupt.

Battery mode

Battery mode means that the battery power goes through the DC/DC

section to the inverter (DC/AC) and get a stable backup output when

the mains input is not usable. If the mains input recovered, the UPS

will transfer to line mode without interrupt.

Battery test mode

In this mode, the UPS will stop the AC/DC section and discharge the

battery while mains input is normal. If the controller found the battery

is error, it will transfer back to line mode immediately, and warning by

display to see whether the battery needs to be replaced. The battery

test mode could be trigged in line mode by pressing the button or by

the communication command.

Fault mode

If the UPS generates some internal failure and have to stop its

inverter, it will go into fault mode and alarm by display and buzzer.

In fault mode, the loads have the risk of power loss because the

output will come from the bypass after UPS fault.