Liebert UPS System user manual UPS states State Reason

Chapter 5 Operation of Display Panel

Table 5-4 UPS states

No.	State			Reason
1	Bypass mode			UPS bypass powers the load
2	Normal mode			The UPS powers the load through	rectifier	and
				inverter
3	Battery mode			The UPS powers the load through battery
4	United power mode			The UPS powers the load through	rectifier	and
				battery together
5	Bypass and inverter all			Bypass and inverter are all shut down
	shutdown
6	Output power interruption			The UPS has no output
7	Battery is under self-test			UPS is in battery self test condition
8	Generator connection			Connect the generator to UPS through dry contacts.
9	Generator exit			Rectifier exits the intelligent generator mode
10	Generator run			Rectifier enters the intelligent generator mode
11	Non-charging state			Battery is not in charging state
12	Equalization charging state			Battery in equalization charging state
13	Float charging state			Battery in float charging state
14	Input circuit breaker closes			Input circuit breaker closes
15	Input circuit breaker opens			Input circuit breaker opens
16	Output circuit breaker closes			Output circuit breaker closes
17	Output circuit breaker opens			Output circuit breaker opens
18	Bypass circuit breaker closes			Bypass circuit breaker closes
19	Bypass circuit breaker opens			Bypass circuit breaker opens
20	Maintenance	circuit	breaker	Maintenance circuit breaker closes
	closes
21	Maintenance	circuit	breaker	Maintenance circuit breaker opens
	opens

Note: When the UPS is in the above states, current event and alarm display window will display the states according to the time sequence; When the states are cleared, the information will also be cleared from the current event and alarm display window and the start time and end time of the state will be recorded in history log.

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