Installation and User Manual

4.5Battery Time

The available battery time during a normal AC source outage depends on the:

◗Rated capacity of the battery.

◗Power consumed by the load.

◗Temperature of the battery.

◗Age of the battery.

The specified battery time corresponds to a minimum duration at full rated load.

The actual backup time can therefore be greater if the system operates below its full rated load during the normal AC source outage. Operation on battery power can be extended beyond the specified time by reducing the load power consumption (by disconnecting non-critical loads).

A "low battery" warning signal is sent via volt-free changeover contacts for remote control devices when the battery voltage reaches a level slightly above the minimum level. This signal warns the user of the imminent end of battery power. On the device itself, the buzzer beeps rapidly.

The message "LOW-BATTERY SHUTDOWN WARNING" is displayed, followed by the remaining backup time and the percent load. Light 2 turns red and flashes.

Battery power stops when the voltage supplied by the battery reaches the minimum threshold. This results in inverter shutdown and transfer of the load without interruption to the bypass AC source. Light 2 shines red (not flashing). The message "LOAD NOT PROTECTED, ON-LINE MODE" is displayed and the buzzer sounds continuously.

If the bypass AC source also fails, the load is no longer supplied. The inverter automatically shuts down when the time on battery power exceeds three times the specified backup time.

NOTE

The "low battery shutdown" warning signal can be sent with an adjustable time

 

delay prior to the effective end of battery power.

 

 

4.6Inverter Shutdown or Overload

Devices or installations operating in on-line mode with a Bypass AC source.

Figure 4-10: Operating in On-line Mode Diagram.

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1

2

A B

1

D

C

2

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Operation

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