TOSHIBA

5.15LCD (Liquid Crystal Display) Functions

The LCD screen is a 4-line by 20-character wide display. The LCD display contains information about the operation of the UPS. It should be used in conjunction with the LED display and the audible alarms for total system monitoring. The LCD displays certain information only on specific lines of the display. The UPS operating mode and conditions determines the information shown. These messages are shown in the following line message charts.

5.15.1Line-1 System Messages

Line-1 messages are based on the operating mode. The following chart shows all allowable Line-1 messages, which occur while starting up and while in main monitor (MONI) screen mode.

LINE-1 MESSAGES

Display Message

Translation

- UPS START UP -

Displayed when UPS is in the start-up condition

or display board is resetting.

 

- BYPASS OPERATION -

Displayed when the UPS is in Bypass

Operation.

 

- UPS ON-LINE -

Displayed when the inverter is running, and no

Utility abnormality exists.

 

 

Displayed during abnormal Utility occurrences;

- BATTERY DISCHARGE -

inverter is supplying power from batteries. (UPS

 

shuts down after V (min.) is reached.

 

Displayed during power failure if V (min.) is

- OUTPUT SHUTDOWN -

reached, an EPO is received, or after

completion of Start-Up Sequence of the Inverter

 

 

and Bypass is not available.

- BATTERY BACKUP -

Displayed during input power failure.

5.15.2Line-2 System Fault Messages

Line-2 fault messages are automatically displayed when a system fault is detected.

 

LINE-2 MESSAGES

Display Message

 

Translation

DCOC

 

DC Over-current

DCUB

 

DC Unbalanced

DCOV

 

DC Over-voltage

OH

 

Overheat (internal)

OL

 

Output Overload

VOUV

 

Inverter Under-voltage

VOOV

 

Inverter Over-voltage

5.15.3Line-3 System Messages

Line–3 messages show load current information, and user selected instructions.

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Toshiba 4200FA user manual LCD Liquid Crystal Display Functions, Line-1 System Messages, Display Message Translation

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