Operations
56 Modular UPS 25KVA~900KVA User Manual
5. Operations
5.1 UPS Start-up
5.1.1 Start in 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 external circuit breakers are open.
2.
Close the input external circuit breakers 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.4-4.
4.
Notice the energy bar in the home page, and pay attention to the LED indicators.
The rectifier flashes indicating the rectifier is starting up. The LED indicators are
listed below in Table 5.1.
Table 5.1 Rectifier starting up
Indicator
Status
Indicator
Status
Rectifier green
flashing Inverter off
Battery red Load off
Bypass off Status red
5.
After 30S, the rectifier indicator goes steady green, presenting the finishing of
rectification and bypass static switch closes then the inverter is starting up. The
LED indicators are listed below in Table.5.2.
Table 5.2 Inverter starting up
Indicator
Status
Indicator
Status
Rectifier green Inverter green
flashing
Battery red Load green
Bypass green Status red
6.
The UPS transfers from the bypass to inverter after the inverter goes normal. The
LED indicators are listed below in Table 5.3.
Table 5.3 Supplying the load
Indicator
Status
Indicator
Status
Rectifier green Inverter green
Battery red Load green
Bypass off Status red
7.
The UPS is in Normal Mode. Close the battery circuit breakers and the UPS starts
charging the battery. The LED indicators are listed below in Table 5.4.
Table 5.4 Normal mode
Indicator
Status
Indicator
Status
Rectifier green Inverter green
Battery green
Load green
Bypass off Status green
8.
Close the output circuit breaker for the load and it finishes the starting up for the
UPS.
