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9. Troubleshooting

When an error occurs on the UPS, error data is displayed on the LCD screen and the waveform is saved. This section will describe the types of errors, the error messages displayed on the LCD screen, the process of saving waveforms and the procedures used to correct the errors.

9.1 Types of Errors

The following types of errors may occur on the UPS:

No.

Name

Description

 

 

 

1

Fault (Trip)

The UPS has been tripped and has stopped operating.

 

 

 

2

Warning-1

The converter has been stopped and power is being supplied

 

(Converter stop/

from the battery. When the warning has been corrected, power is

 

Input power

automatically supplied from AC input.

 

error)

 

 

 

 

3

Warning-2

The unit changes to bypass power supply and the UPS stops

 

(Stop and

operating. When the warning has been corrected, the unit will

 

restart)

automatically be restarted and revert to UPS power supply.

 

 

 

4

Warning-3

An error or phenomenon related to an error occurred. Since this

 

(Operation

problem does not directly affect operation, the system switches to

 

control)

synchronized mode.

 

 

 

5

Warning-4

An error or indication of an error has occurred, but operation was

 

(guidance)

not affected.

 

 

 

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Toshiba TOSNIC-7000S instruction manual Troubleshooting, Types of Errors, Name Description