Toshiba 1400SE Series - 7 Troubleshooting Procedures; Non-Fatal Fault Mode

TOSHIBA
7.0 Troubleshooting Procedures
Faults are those abnormal conditions that can occur and can cause the unit to shutdown normal
operation. The faults are detected by the protection circuitry (see System Protection Features
Section 5.2) in the unit. The UPS FAULT lamp will light red. "Troubleshooting" involves monitoring
the OUTPUT/BATTERY level meter lamps on the front panel and then interpreting the readout by
using the fault mode display charts.
7.1 Non-Fatal Fault Mode
Non-fatal faults may or may not cause the unit to shut down; they normally will cause the
UPS to transfer to bypass mode. Use "System Restart" procedures (see Section 5.10).
Use the following chart to decode the display.
7 - 1
Display status Probable cause Corrective action
Fault
6158234 7
BATTERY
OUTPUT
Red and Green LED's
flash alternately
Remove load
equipment one piece
at a time.
Resonance with load
equipment
12345678
OUTPUT
BATTERY
Red and Green LED's
flash alternately
12345678
OUTPUT
BATTERY
Chopper fault
Red and Green LED's
flash alternately
12345678
OUTPUT
BATTERY
Check for airflow
restriction.If none is
found, contact your
Toshiba service
representative.
Red and Green LED's
flash alternately
Battery damaged or
something wrong in the
battery circuit (battery not
connected)
12345678
OUTPUT
BATTERY
Red and Green LED's
flash alternately
Cooling fin
overheating
DC
undervoltage
Output
overvoltage
Output low
voltage
Battery
problem
Contact your Toshiba
service representative
Contact your Toshiba
service representative
Remove cause of
short circuit. If none is
found, contact your
Toshiba service
representative.
Inverter fault or short
circuit in UPS output
Cooling fan outage or
closed cooling airflow
path
Non-Fatal Fault Mode Display Chart