American Power Conversion 200/208 V ユーザーズマニュアル

This section lists the status and alarm messages that the UPS might display. The messages are listed 
in alphabetical order, and a suggested corrective action is listed with each alarm message to help you 
troubleshoot problems. 

Automatic Self Test 
Started.

The UPS has started pre-programmed 
battery test.

No corrective action is necessary.

Batt Temperature 
Exceeded Upper Limit.

The temperature of one or more bat-
tery units has exceeded the system 
specifications.

Contact APC Customer Support. 
See rear cover.

Battery over-voltage 
warning.

The battery voltage is too high and 
the charger has been deactivated.

Contact APC Customer Support. 
See back cover.

Bypass Not Available 
Input Freq/Volt Out Of 
Range.

The frequency or voltage is out of 
acceptable range for bypass. This 
message occurs when the UPS is 
online, and indicates that the bypass 
mode may not be available if 
required.

Correct the input voltage to provide 
an acceptable voltage or frequency.

Discharged Battery.

The UPS is in battery operation and 
the battery charge is low. 
Note: Runtime is limited in duration. 

No corrective action is necessary. 
Shut down the system and the load 
equipment or restore incoming 
voltage.

Emergency PSU Fault.

The redundant Emergency Power 
Supply Unit (PSU) is not working. 
The UPS will continue to work nor-
mally, but the PSU should be 
replaced.

Contact APC Customer Support. 
See backcover.

EPO Activated.

The Emergency Power Off switch has 
been activated.

Deactivate the Emergency Power Off 
switch. 

Fan fault.

A fan has failed.

Contact APC Customer Support. See 
back cover.

Int. Mech. Bypass 
Switch Closed.

The internal mechanical switchgear is 
closed.

No corrective action necessary. The 
UPS is in internal mechanical bypass 
operation.

Int. Mech. Bypass 
Switch Open.

The internal mechanical switchgear is 
open.

No corrective action is necessary.