40
5. Operations
5.1 UPS Start-up
5.1.1 Start from Normal Mode
The UPS must be started up by commissioning engineer after the completeness of
installation. The steps below must be followed
：
1. Ensure all the circuit breakers are open and the UPS output is not shorted..
2. Close the output circuit breaker (CB) and then the input CB and the system starts
initializing. If the system has dual inputs, close both of the breakers.
3. The LCD in front of the cabinet is lit up. The system enters the home page, as
shown in Fig.4-2.
4. Notice the energy bar in the home page, and pay attention to the LED indicators.
5. After 30S, Bypass static switch closes then the inverter is starting up.
6. The UPS transfers from the bypass to inverter after the inverter goes normal.
7. The UPS is in Normal Mode. Close the battery circuit breakers and the UPS starts
charging the battery.
8. The starting up done.
Note
When the system starts, the stored setting will be loaded.
Users can browse all incidents during the process of the starting up by checking the menu
Log
.
5.1.2 Start from Battery
The start for battery model is referring to battery cold start. The steps for the start-up
are as follows
：
1. Confirm the battery is correctly connected; close the external battery circuit
breakers.
2. After 60S, Press the red button located at the back of the UPS cabinet for the
battery cold start. The system is powered by the battery.
3. After that, Press the button for
cold start
on the LCD, The system is starting up
following steps 3 in section 5.1.1 and the system transfers to battery mode in 30S.
4. Close the external output power supply isolation to supply the load, and the
system is working on battery model.
Summary of Contents for EA990 G5 10
Page 2: ......
