Liquid Crystal Display (Lcd) Functions; Line-1 System Messages; Line-2 System Fault Messages; Line-3 System Messages - Toshiba 4200 series Operation Manual

6.9

Liquid Crystal Display (LCD) Functions

The liquid crystal display (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 (see Section 6.8) and the audible alarms (see Section 6.7) for total
system monitoring. The LCD displays certain information only on specific lines of the display.
This information is determined by the UPS operating mode and conditions. These messages
are shown in the following line message charts.
6.9.1

Line-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.
Display Message
- START UP -
- BYPASS OPERATION -
- UPS ON-LINE -
- BATTERY DISCHARGE -
- OUTPUT SHUTDOWN -
- BATTERY BACKUP -
6.9.2

Line-2 System Fault Messages

Line-2 fault messages are automatically displayed when a system fault is detected.
Display Message
DCUV
DCOC
DCUB
DCOV
EERR
IVUV
IVOV
6.9.3

Line-3 System Messages

Line–3 messages show load current information, and user selected instructions.
TOSHIBA
LINE-1 MESSAGES
Meaning
Displayed when UPS is in the start-up condition
or display board is resetting.
Displayed when the UPS is in Bypass
Operation.
Displayed when the inverter is running, and no
Utility abnormal exists.
Displayed during Utility abnormal; inverter is
supplying power from batteries. (Unit shuts
down after V (min.) is reached.
Displayed during power failure if V (min.) is
reached, or an EPO is received, or after
completion of Start-Up Sequence of the Inverter
and Bypass is not available.
Displayed during input power failure.
LINE-2 MESSAGES
Meaning
DC Under-voltage
DC Over-current
DC Unbalanced
DC Over-voltage
Main EEPROM error
OH Overheat (internal)
OL Output Overload
Inverter Under-voltage
Inverter Over-voltage
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