Battery Check Function, Function Control Button

TOSHIBA

placed on the UPS increases the fan speed will increase. The temperature of the environment the UPS is operating in can also cause the fan speed to increase. (For a more detailed explanation of the variable speed fan function refer to appendix B)

Battery Check Function

During startup the UPS will perform an automatic 'Battery Check' to detect whether a problem exists in the battery circuit. If the batteries pass the test, the unit will start normal operation. If a problem is detected during the test the “Warning/Fault” LED will activate. Other LED’s may also activate. If this occurs please refer to the “Troubleshooting” section on page 20 for a description of the problem and possible solutions. It is important to note that when the UPS has detected bad batteries, the battery backup mode is disabled. The unit will continue to operate and provide clean power; however, since there is no battery power available, the unit cannot provide backup power if input power is lost.

The Function Control Button

The function control button is located on the display panel (see “Display Panel Layout”, page 11). This button is used to perform several different UPS operations, including initiating self test, providing programming options, and silencing the alarm. A brief description of each function follows along with a step by step guide to accessing each function.

1)Self-Test. In order to perform a self-test the UPS must be operating in the normal mode (see “UPS Display Status and Operating Condition”, page 13). To initiate the self-test simply press and hold the Function Control button until all the LED’s activate. The self-test also performs the same battery check described above.

2)Alarm Silence. The alarm silence feature is used to stop the audible alarm from sounding. Any time the audible alarm is sounding pressing the Function Control button will silence the alarm.

3)Programming Mode. There are three programming options: load shed, output enable/disable after input overvoltage backup, and reset battery installed date. In order to enter the programming mode the UPS must first be operating in Bypass mode without faults (see “Stopping the UPS: Option 1”, page 12). Then press and hold the Function Control button. (“Press and hold” always means to hold until the unit gives audible feedback). The unit will give an audible feedback indicating the unit is in programming mode. (If at anytime while the UPS is in the programming mode there is one minute of inactivity the UPS