
TOSHIBA 
Upon completion of the battery test the previous operation is resumed and the main system 
MONI screen will be displayed. The following system message is displayed if the battery test 
detects a low DC battery voltage: 
- UPS ON-LINE - 
OUTPUT VOLTAGE= 208V 
CURRENT=38/55/48% 
* LOW BATTERY * 
The following system message is displayed upon the successful completion of the battery test: 
- UPS ON-LINE - 
OUTPUT VOLTAGE= 208V 
CURRENT=38/55/48% 
DATE (DAY) TIME 
If the inverter is not operating when the BATT TEST key is pressed then the function will be 
inhibited (disabled) and the following screen message will be displayed: 
Note: Press the MONI key to return 
to the main monitoring menu. 
- BATTERY TEST - 
BATTERY VOLTAGE= 324V 
BATT. TEST INHIBITED 
NOTE: 
After start-up, the battery test function is inhibited for 20 min. (Only one battery test can be 
done approximately every 20 min.). 
6.14.7  BUZZ STOP Key 
Turns off the audible alarm. 
6.14.8 RESET Key 
Resets the LCD display board software should a system lock-up occur. The reset does not 
reset memory variables. 
Use of the RESET function is very important when a fatal communication error has occurred. 
Press and hold the RESET key for five seconds or more to reset the display software. The 
display board-to-main board interface will begin a new communication sequence. If a 
communication response is not received by the display board from the main board within 15 
seconds, a fatal time-out occurs and the following system message displays: 
- DISPLAY ERROR - 
MAIN COMM. ERROR 
PRESS & HOLD RESET KEY 
Note: If the error message persists 
contact the TOSHIBA  Service 
Center. 
Upon a successful Reset the Startup Screen appears followed by the Main Monitor. 
44  4200FA User’s Manual