Toshiba 4200FA CT/XT user manual LED Light Emitting Diode System Status

TOSHIBA

6.11.1LED (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	ON/OFF STATUS	LED	ON/OFF STATUS
Normal UPS Operation		Output Shutdown
(UPS On-Line, no abnormal conditions)		(After EPO received (Emergency Power Off ))
AC IN	ON	AC IN	OFF
INV	ON	INV	OFF
BYP	OFF	BYP	OFF
BATT	OFF	BATT	OFF
FAULT	OFF	FAULT	OFF
Bypass Operation; UPS Fault		Fatal Communication Error
		(Display to Control Interface)
AC IN	ON	AC IN	ALL ON OR FLICKERING
INV	OFF
BYP	ON	INV	RAPIDLY
BATT	OFF	BYP
FAULT	ON	BATT
		FAULT
Battery Back-up; (Battery Voltage Low)
AC IN	OFF
INV	ON
BYP	OFF
BATT	ON (Blinking)
FAULT	OFF

6.12LCD (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.

6.12.1Line-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
	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 Shutdown Sequence of the
	Inverter and Bypass is not available.
- BATTERY BACKUP -	Displayed during input power failure.

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