42
2) Users can check warning codes in Section 3-7 and follow chapter 4 Troubleshooting to solve
warning status.
3) Some warning alarms can’t be muted unless the error is fixed. Please refer to section 3-3 for
details.
11. Operation in Fault mode
1) When fault code lights on the LCD screen and the buzzer beeps continuously, it means that there is
a fatal error with the UPS. Users can get the fault code from “DATA LOG” menu. Please refer to the
Section 3-2-6 for details.
2) Please check the loads, wiring, ventilation, utility, battery and so on after the fault occurs. Don’t try
to turn on the UPS again before solving the issue. If the problems can’t be fixed, please contact the
distributor or service personnel immediately.
3) For emergency case, please cut off connection from utility, external battery, and output
immediately to avoid possible damage to the UPS or equipment.
12. Operation in maintaining bypass mode
This operation is only available for professional or qualified technicians.
When the UPS needs to repair or service and then the load can’t be shut off, the UPS needs to turn to
maintenance mode.
1) First, turn off the UPS.
2) Second, remove the cover of maintenance bypass switch on the panel.
3) Third, turn the maintenance switch to “BPS” position and turn off the UPS input breaker and output
breaker.