T1X06000GA-N1-R3 datasheet(59/118 Pages) TOSHIBA

59 / 118 page

T1000 Series UPS 5.6-6kVA Installation and Operation Manual – 91074-005

16.3 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.

All faults except EXTBC1 and EXTBC2 are recorded. The fault status can cleared by cycling UPS power

(turn off until the display goes blank, then turn on) after the problem has been fixed.

TABLE 16-2: UPS FAULT MESSAGES

Display

Re-

corded

Meaning

Action

BYPOH

Bypass Overheat – Overheating

condition occurred.

Check unit for blocked or in-operable fan. Lower

ambient temperature if it is greater than 104 °F (40

°C). Bypass operation will also cease if overheat

condition is not corrected within 1 hr. of inverter

shutdown. Try restarting. If condition repeats plan

for total shutdown and call for service.

BYPOL

Bypass Overload – UPS is over-

loaded.

Shut down excess equipment to reduce load.

CHRGOV

Charger Overvoltage – Charger

overvoltage condition occurred.

UPS is faulty. Check the UPS operation conditions

at time of fault. Not advisable to restart the UPS.

Call Toshiba for service.

Current Limit – Load on UPS out-

put exceeds unit specifications.

Reduce load on UPS output.

DCIB

DC Bus Imbalance – DC voltage

imbalance occurred.

Possible causes of UPS fault are connection of

half-wave rectifier load. Check load and try restart-

ing. If condition persists,call Toshiba for service.

DCOC

DC Bus Overcurrent – DC overcur-

rent condition occurred.

UPS is faulty. Check the UPS operation conditions

at time of fault. Not advisable to restart the UPS.

Call Toshiba for service.

DCOV

DC Bus Overvoltage – DC over-

voltage condition occurred.

UPS is faulty, input wiring error, input overvoltage

or connection of a motor load. Try restarting. If con-

dition persists call Toshiba for service.

DCUVBS

DC Bus Undervoltage during

Boostup Mode – DC Bus under-

voltage condition occurred.

UPS is faulty. Check the UPS operation conditions

at time of fault. Not advisable to restart the UPS.

Call Toshiba for service.

DCUVC

DC Bus Undervoltage During

Charging Mode – DC Bus under-

voltage condition occurred.

UPS is faulty. Check the UPS operation conditions

at time of fault. Not advisable to restart the UPS.

Call Toshiba for service.

DVCOH

Device Overheat – Overheating

condition occurred.

Reduce equipment load to 100% or less and try

restarting.

T1X06000GA-N1-R3 Datasheet(PDF) 59 Page - Toshiba Semiconductor

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