Led (Light Emitting Diode) System Status; Lcd (Liquid Crystal Display) Functions; Line-1 System Messages - Toshiba 4200FA Installation And Operation Manual

6.11.1 LED (Light Emitting Diode) System Status

The following chart shows the UPS system status that can be determined by decoding the
"on" and "off" condition of the LED lamps. It should be used in conjunction with the LCD
display and the audible alarms for total system monitoring.
LED
(UPS On-Line, no abnormal conditions)
AC IN
BATT
FAULT
Bypass Operation; UPS Fault
AC IN
BATT
FAULT
Battery Back-up; (Battery Voltage Low)
AC IN
BATT
FAULT
6.12

LCD (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.

6.12.1 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
- UPS START UP -
- BYPASS OPERATION -
- UPS ON-LINE -
- BATTERY DISCHARGE -
- OUTPUT SHUTDOWN -
- BATTERY BACKUP -
50
ON/OFF STATUS
Normal UPS Operation
ON
INV ON
BYP OFF
OFF
OFF
ON
INV OFF
BYP ON
OFF
ON
OFF
INV ON
BYP OFF
ON (Blinking)
OFF
LINE-1 MESSAGES
LED
Output Shutdown
(After EPO received (Emergency Power Off ))
AC IN
INV
BYP
BATT
FAULT
Fatal Communication Error
(Display to Control Interface)
AC IN
INV
BYP
BATT
FAULT
Translation
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
abnormality exists.
Displayed during abnormal Utility occurrences;
inverter is supplying power from batteries. (UPS
shuts down after V (min.) is reached.
Displayed during power failure if V (min.) is
reached, an EPO is received, or after
completion of Shutdown Sequence of the
Inverter and Bypass is not available.
Displayed during input power failure.
4200FA Installation and Operation Manual
ON/OFF STATUS
OFF
OFF
OFF
OFF
OFF
ALL ON OR FLICKERING
RAPIDLY