S&C TA-3370, Instruction Sheet, Page: 23 / 33

S&C Instruction Sheet 661-500 23
Operation
Table 7. Troubleshooting Tips
Issue Reason
The UNDERVOLTAGE and OVERVOLTAGE LEDs are lit on the
charger
This is an error that indicates BAT BAD . During the battery test, if the battery
voltage is less than 23 Vdc and the battery impedance is more than 700
mohms, the BAT BAD error will occur . The charger will disconnect the
battery by default .
In the GUI application under the Settings tab, if the user selects the No
option to disconnect the battery from the charger if the voltage is under
17 .5 Vdc, or if the charger is in the
BAT BAD condition, then the battery will
not be disconnected from the charger if ac is present .
Troubleshooting Tip: Reset the charger by using the GUI application or
by using the RESET pushbutton to clear the error . Conduct the battery test
again to check whether the BAT BAD error message appears again . If it
appears again, change the battery .
Data not loading into the GUI application software
This is a possible error with the DB9 connection .
Troubleshooting Tip: Close and reopen the GUI application . Check
the communication cable (connecting the charger and PC) for loose
connections . Restart the computer and reopen the GUI application if issues
persist . If these actions do not resolve the issue, contact S&C Electric
Company .
“BAT LOW” appears on the LCD screen or in the GUI application
Battery voltage is less than 22 Vdc during a battery test .
Troubleshooting Tip: Make sure ac power is present . The charger will
charge the battery and, when the battery voltage is greater than 22 Vdc, the
BAT LOW warning will clear .
“CHR UV” appears on the LCD screen or in the GUI application
This occurs when the charger is providing a voltage that is lower than the
threshold . The charger will still work normally .
Troubleshooting Tip: Verify the ac source wiring is connected to the
charger . Reset the charger to clear the warning . If the warning still appears
after multiple resets, contact S&C Electric Company .
“CHR OV” appears on the LCD screen or in the GUI application
This occurs when the charger is providing a voltage that is higher than the
threshold . The charger will still work normally .
Troubleshooting Tip: Verify the ac source wiring is connected to the
charger . Reset the charger to clear the warning . If the warning still appears
after multiple resets, contact S&C Electric Company .
Troubleshooting Tips
Any issues the charger and battery have are displayed on
the LED indicators on the charger, on the LCD screen on
the charger, or on the Battery Status screen of the GUI
application software. Table 7 shows action items that can
be done to resolve issues with the charger and battery.