23.3 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 are recorded. The fault status can cleared by cycling power (turn off, then turn on) after the prob- lem has been fixed.

Display

Recrd-

Meaning

Action

 

ed

 

 

BYPOH

Y

Bypass Overheat – Overheating

Check unit for blocked or in-operable fan. Lower

 

 

condition occurred.

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 re-occurs plan

 

 

 

for total shutdown and call for service.

BYPOL

Y

Bypass Overload – UPS is over-

Shut down excess equipment to reduce load.

 

 

loaded.

 

CHRGOV

Y

Charger Overvoltage – Charger

UPS is faulty. Check the UPS operation conditions

 

 

overvoltage condition occurred.

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

 

 

 

Call Toshiba for service.

CLMT

Y

Current Limit – Load on UPS out-

Reduce load on UPS output.

 

 

put exceeds unit specifications.

 

DCIB

Y

DC Bus Imbalance – DC voltage

Possible causes are UPS fault are connection of

 

 

imbalance occurred.

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

 

 

 

ing. If condition persists,call Toshiba for service.

DCOC

Y

DC Bus Overcurrent – DC overcur-

UPS is faulty. Check the UPS operation conditions

 

 

rent condition occurred.

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

 

 

 

Call Toshiba for service.

DCOV

Y

DC Bus Overvoltage – DC over-

UPS is faulty, input wiring error, input overvoltage

 

 

voltage condition occurred.

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

 

 

 

dition persists call Toshiba for service.

DCUVBS

Y

DC Bus Undervoltage during

UPS is faulty. Check the UPS operation conditions

 

 

Boostup Mode – DC Bus under-

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

 

 

voltage condition occurred.

Call Toshiba for service.

DCUVC

Y

DC Bus Undervoltage During

UPS is faulty. Check the UPS operation conditions

 

 

Charging Mode – DC Bus under-

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

 

 

voltage condition occurred.

Call Toshiba for service.

DVCOH

Y

Device Overheat – Overheating

Reduce equipment load to 100% or less and try

 

 

condition occurred.

restarting.

FSOPEN

Y

Fuse Open.

Replace fuse.

48

1600XP Series Installation and Operation Manual

Page 57 Page 59
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Toshiba 1600XP operation manual System Fault Messages, Display Recrd Meaning Action
Page 57 Page 59

1600XP specifications

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