Operation; Power On; System Parameter Setting; Start - KStar YDC9300-0.8 User Manual

3.2 Operation

3.2.1 Power on

Switch on the AC input and bypass circuit breakers if all connections are correct. If
external batteries are connected, please switch on the battery breaker first, then the
AC breaker. Fans will spin, the system will execute self-diagnostics. After the self
diagnostics is finished, the buzzer inside will beep twice. The system will go to
bypass mode, then AC and bypass indicators on front panel will be on (green) and it
goes to inverter mode.

3.2.2 System parameter setting

Check the information displayed on the LCD by right or left arrow button, press ESC
to quit from the main menu.
When the function setting interface as P.11 Fig3, press the ENT then hold it for 1s to
enter to do the function setting such as floating charging, boosting charging,
temperature compensate function, battery capacity ( for extended backup model
only )

3.2.3 Start


AC available
1) Press the On button and hold it for 1s until hearing a beep , wait for a few
seconds, the bypass indicator will be off , the inverter indicator will be on, see
Fig3-6, then, UPS is working in AC mode
CAUTION
The UPS can start automatically when the AC power comes back if the
UPS shuts down already due to battery exhausted, or the auto restart
function has been enabled.
Gradually increase the load after the UPS working normally. Load information
2)
can be checked through the LCD.
3) If the buzzer beeps twice per second and overload alarm is displayed on the LCD,
it means the system is overloaded. Please decrease the load immediately.70%
of load is recommended in case suddenly added load will not affect the UPS
work normally
CAUTION
If the UPS has transferred to bypass mode due to overload for several
times and reach the setting times in 1 hour, it will keep in bypass mode
unless manually transfer to inverter mode or automatically transfer to
inverter mode 1 hour later without overloading
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