Chapter 4 Operations
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RT33020/25/30KE User Manual
Chapter 4 Operations
4.1 UPS Start-up
4.1.1 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.
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 UPS is lit up. The system enters the home page, as shown in
Fig.3-2.
4. The LCD home interface shows that the system rectifier is working and the indicator flashes,
as shown in Fig.4-1.
Fig.4-1 Interface 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 Fig.4-2
Fig.4-2 Interface of bypass starting
6. After the bypass static switch is on, the inverter starts and the inverter indicator bar flashes
as shown in Fig.4-3.
