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System Fault Messages - Toshiba 4400 Series Installation And Operation Manual

Three phase - 15/20/25/30/50/80/100 kva
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12.21

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 abnormal 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.
Display
Display
Meaning
COC
CHOPPER OVERCURRENT
DBUSAB
DC CIRCUIT ABNORMAL
DCOV
DC OVERVOLTAGE
DCUB
DC UNBALANCED
DCUV
DC UNDERVOLTAGE
DMYFLT
DUMMY FAULT
DOH
OVERTEMPERATURE
EPOTR / EPO
EMERGENCY STOP ACTIVATED
GVERR
CONTROL POWER SUPPLY ABNORMAL
INABNL
INPUT CIRCUIT ABNORMAL
INVABN
INVERTER VOLTAGE ABNORMAL
INVBYP
UPS CONTROL CIRCUIT ERROR
INVCER
OUTPUT CIRCUIT ABNORMAL
INVERR
UPS CONTROL CIRCUIT ERROR
INVOC
INVERTER OVERCURRENT
INVOV
INVERTER OVERVOLTAGE
INVUV
INVERTER UNDERVOLTAGE
IOC
INPUT OVERCURRENT
LDABNL
LOAD ABNORMAL
NOCONN
No connection established
OCERR
Current is more than rated output current
OVABNL
OUTPUT VOLTAGE ABNORMAL
PCBER
UPS CONTROL CIRCUIT ERROR
PCHGER
PRECHARGE FAULT
PHBRER
BYPASS PHASE ROTATION ERROR
92
TABLE 12.4: SYSTEM FAULT MESSAGES
System Fault Messages
Meaning
Action
Contact nearest Toshiba Authorized service representative.
Contact nearest Toshiba Authorized service representative.
UPS is possibly faulty, input wiring error, input overvoltage or connection of a
motor load. Try restarting. If condition persists, call for service.
Contact nearest Toshiba Authorized service representative.
UPS is possibly faulty, input wiring error, input overvoltage or connection of a
motor load. Try restarting. If condition persists, call for service.
Used by Engineering to troubleshoot issues.
Reduce equipment load to 100% or less and try restarting.
Emergency stop activated. Restart UPS after Emergency cleared.
Contact nearest Toshiba Authorized service representative.
Contact nearest Toshiba Authorized service representative.
Voltage out of spec. Contact nearest Toshiba Authorized service representative.
Inverter voltage/Bypass Voltage is out of spec. Contact nearest Toshiba
Authorized service representative.
Contact nearest Toshiba Authorized service representative.
Inverter voltage is out of spec. Contact nearest Toshiba Authorized service
representative.
Contact nearest Toshiba Authorized service representative.
Contact nearest Toshiba Authorized service representative.
Contact nearest Toshiba Authorized service representative.
Reduce Load. If problem persists, contact nearest Toshiba Authorized service
representative.
Lower load below 96%. If condition persists, Contact nearest Toshiba
Authorized service representative.
Contact nearest Toshiba Authorized service representative.
Lower Load and restart UPS. If condition persists, contact nearest Toshiba
Authorized service representative.
Contact nearest Toshiba Authorized service representative.
Check Fault Code on history log and present it to the nearest Toshiba
Authorized service representative .
Contact nearest Toshiba Authorized service representative.
Bypass phase rotation is reversed. Contact nearest Toshiba Authorized service
representative.
4400 Series Installation and Operation Manual – 64527-008
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