Emergency Power Off (Epo); Troubleshooting; Types Of Errors - Toshiba G8000 SERIES Installation And Operation Manual

14.9

Emergency Power Off (EPO)

Press the EPO switch for immediate shutdown of all power through the UPS. The signal from the EPO
is processed as a "hard fault" by the UPS and results in gate-blocks on the transistors and opens all the
internal contactors.
To Reset the UPS after triggering the EPO, do the following:
1.
Shut Down the UPS as described in section 14.6.
2.
Restart the UPS as described in section 14.3.
15

Troubleshooting

When an error occurs in the UPS, error data is displayed on the LCD screen. This section will describe the
types of errors, the error messages displayed on the LCD screen and the procedures to correct the errors.
15.1

Types of Errors

The following types of errors may occur in the UPS:
Name
Fault (Trip)
Fault
Warning-1 (Input Power Failure)
Warning-2 (Stop and Restart)
Warning
Warning (Operation Control)
(Guidance)
70
TABLE 15.1 OPERATION TYPES
Description
The UPS has been tripped and has stopped operating.
The UPS is in Bypass mode.
Power is supplied from the battery. When the warning is
corrected, power will automatically be supplied from the
AC input.
The UPS transfers to Bypass supply and the UPS stops
operating. When the warning is corrected, the UPS will
automatically be restarted and revert to UPS supply.
An error or a phenomena related to an error occurred.
Since this problem does not directly affect operation, the
system switches to synchronized mode.
An error or indication of an error has occurred, but
operation was not affected.
G8000 Series Installation and Operation Manual