Fatal Fault Mode - Toshiba Black Gold TB Series Operation Manual

7.0 Troubleshooting Procedures (Cont.)
7.2

Fatal Fault Mode

Fatal faults may or may not cause the UPS to shutdown. Use System Reset procedures
(See Section 5.10). Use the following chart to decode the display.
Fault
DC
overcurrent
DC
overvoltage
Input
overcurrent
UPS system
error
TOSHIBA
Fatal Fault Mode Display Chart
Display Status
Red and
Green
Inverter fault
LED flash
alternately
Red and
Green
Chopper fault
LED flash
alternately
Red and
Green
Chopper fault
LED flash
alternately
Red and
Green Trouble with the control
LED flash PWB
alternately
= Flashing LED
24
Problem Cause
Contact your Toshiba
service representative.
Contact your Toshiba
service representative.
Corrective Action