American Power Conversion 400 Audible alarm operation, Minimum battery capacity to restart

5.0 Operation

■Audible alarm operation

The UPS’s audible alarm beeps four times every 30 seconds during on- battery operation. The alarm beeps continuously when low-battery condi- tions are reached. This is the default operation. You may configure the audible alarm operation such that response to utility failure is delayed by 30 seconds, silenced until low-battery conditions are reached, or muted during both on-battery and low-battery conditions.

■Minimum battery capacity to restart

You may configure the UPS so that it will not restart upon restoration of the utility until the battery has been recharged to 90%, 25%, 10%, or 0% of capacity. This function helps eliminate short run times when repetitive utility failures occur. The default setting is 0%.

■Shut down, turn off delay

You may set the UPS’s shutdown or turn-off delay interval to 20, 180, 300, or 600 seconds. The default setting is 20 seconds. Extension of the delay is useful when an operating system’s final shutdown routine is longer than 20 seconds.

■Turn on delay

You may set the UPS’s turn-on delay to 0, 60, 180, or 300 seconds. The default setting is 0 seconds.

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