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4. Operations
4.1 UPS start-up
4.1.1 Startup 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 circuit breakers are open.
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 input breakers.
3. The LCD in front of the UPS is lit up. The system enters the home page, as shown in Fig.4-1.
4. The LCD home interface shows that the system rectifier is working, the indicator flashes, as
shown in Figure 4.1.
Fig.4-1 LCD of rectifier starting
5. After about 30S, the rectifier start is completed, the bypass static switch is on, and the bypass
indicator flashes, as shown in Figure 4-2
Fig.4-2 LCD of bypass starting
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