System Fault Messages; System Warning Messages - Toshiba 5000 Series Installation And Operation Manual

12.18

System Fault Messages

A Fault message is generated when either a fault condition occurs, or a warning condition occurs three times within ten
minutes. The table below shows the possible fault messages and what actions need be taken.
If the input voltage is normal when the fault occurs then the UPS will switch immediately to the bypass mode to continuously
feed power to the load.
If the fault condition occurs while the input power is outside of specification and the UPS is in Bypass mode, the UPS will
shut down the output to prevent load equipment damage.
When a Fault condition exists, the red LED on the UPS display panel will illuminate until the fault is cleared. A reset of the
system after the source of the fault is eliminated is required to turn off the fault LED.
Fault Code
FUSEOPEN
USERFLT
INV_UV
EPO
CTL_PWR
DCBUS_OC
BATT_DEP
MULTIWRN
XFMR_OH
DCBUS_UV
DEFAULTS
WD_RESET
12.19

System Warning Messages

Warning messages are generated when a noncritical abnormal operating condition occurs. The following tables shows
possible messages and their meaning.
When a Warning condition exists, the amber LED on the UPS display panel will flash for the duration of the Warning con-
dition.
5000 Series 3P1 Industrial UPS Installation and Operation Manual – 92973-001
TABLE 12.3: SYSTEM FAULT MESSAGES
Meaning
Fuse open
USERFLT External I/O input
indicates a User Fault has
occurred.
Inverter Undervoltage During
Startup
Emergency Power Off.
Control Power Supply Fault
DC Bus Overcurrent
Battery Depleted Fault
Frequent Errors (Warnings
Occuring Frequently)
Unit Overheat
DC Bus Undervoltage During
Startup
The Control Board EEPROM
Loaded Default Parameters.
UC Watchdog Reset Occurred
System Fault Messages
Contact nearest Toshiba Authorized service
representative.
If possible, correct the fault condition that caused the
fault condition. Otherwise, Contact nearest Toshiba
Authorized service representative.
Contact nearest Toshiba Authorized service
representative.
Reset EPO switch to start.
Contact nearest Toshiba Authorized service
representative.
Contact nearest Toshiba Authorized service
representative.
Charge the batteries. If this persists, contact nearest
Toshiba Authorized service representative
Contact nearest Toshiba Authorized service repre-
sentative
Reduce equipment load to 100% or less and try
restarting.
Contact nearest Toshiba Authorized service
representative.
Contact nearest Toshiba Authorized service
representative.
Contact nearest Toshiba Authorized service
representative.
Action
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