American Power Conversion AIS 5000 사용자 설명서

The display automatically indicates the current UPS operation mode. See the table below for 
examples of operation modes and their descriptions.

Normal Operation

The inverter supplies the load. The charger uses the mains supply to feed the 
inverter.

Battery Operation

The inverter supplies the load. The battery bank supplies the inverter. In battery 
operation the load support time is limited; when the batteries are discharged the 
UPS is unable to supply the load.

Bypass Operation

The bypass static switch supplies the load, meaning that the load is supplied 
directly from the bypass mains. When working in bypass operation the UPS can 
switch to battery operation if the bypass mains fails. 

Charger Only

The charger is recharging the battery. The inverter is shut down.

Economy Operation

The UPS is in permanent bypass operation and will only switch to battery 
operation if the bypass mains is out of tolerance.

Hot Standby

In redundant configurations, one UPS can switch off the inverter, but still keep 
the inverter ready for immediate start in case another UPS fails.

In standby mode, the UPS has no output voltage.

Users do not require electrical qualifications to switch the UPS to and from standby 
mode/normal operation.