TOSHIBA
6 - 8
6.0 Operating the UPS
6.13 Front Panel Layout
6.13.1 Front Panel Indicator LED Lamps
AC LINE (green lamp)
Lights green when normal ac input power is being supplied to the UPS
unit.
UPS RUN/FAULT (green/red lamp)
Lights green when the UPS unit is operating in the run mode and the
output is normal. Lights red when the UPS unit has tripped in the fault
mode. This condition occurs when an overcurrent, overvoltage, overload,
or overheating problem is detected. Operation of the unit's inverter is
inhibited until the fault is corrected and the system has been restarted.
OUTPUT/BATTERY (green/red lamp level meter)
The UPS unit's level meter consists of six green LED lamps (left) and
two red LED lamps (right).
6.13.2 Front Panel Indicator LED Lamp Functions
The three front panel LED indicators are used in combination to identify three
different modes of operation and the various operating conditions within these
modes:
1) UPS Run Mode - This is a normal operational mode where no faults
are detected and the UPS RUN/FAULT (green/red lamp) is green.
See the UPS Run Mode Display Chart in section 6.14 for
OUTPUT/BATTERY level meter display status and functional
explanation.
2) UPS Fault Mode - This is an abnormal operation mode where the
UPS unit has tripped because of detected faults (can be either fatal
or non-fatal) and the UPS RUN/FAULT (green/red lamp) is red.
The unit may:
1) continue to output power on bypass.
2) not go to bypass and output power will be off.
The condition of the output will depend on the type of fault
that has occurred. See the Non-Fatal Fault Mode Display Chart in
section 7.1 or the Fatal Fault Mode Display Chart in section 7.2 for
OUTPUT/BATTERY level meter display status and functional
explanation.
3) Battery Backup Mode - During battery backup mode the the AC
AC LINE
AC LINE
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