Liebert Series 600T manual History Status Report Screens

History Status

The History Status screen displays 64 frames, of 4 milliseconds each, from the Present Status screen. Note that the values for output volts and amps are updated once each millisecond. Alarms are listed in the sequence they occurred, within 1 millisecond resolution. The frames are stored in a buffer (a computer information storage technique). The buffer stores the frames in a first-in first-out sequence. As a new frame enters the buffer the old- est one is released.

When a designated fault occurs (see list below), the buffer stores information for the next 24 frames and then freezes (stops gathering information). At that time, the History Status screen contains 40 frames before the fault, the frame when the fault occurred, and 23 frames after the fault. This 64-page report is a very useful diagnostic tool for the operator or Liebert Global Services. Use the Up and Down pads to view the screens.

Figure 25 History Status Report Screens

	HISTORY STATUS		MODULE-0 04/10/97					16:49:21		FRAME 36
	ORDER - 000000	SITE ID - 00000			SITE TAG - 0000000
**** ACTIVE ALARMS ****			Output Ov-volts
OUTPUT VOLTS			A	B	C	DC	LOAD		HERTZ TIME
			480	480	480
OUTPUT AMPS			420	420	420				60.0
OUTPUT FREQUENCY							349
LOAD KVA			480	480	480
BYPASS VOLTS
								UP	: NEXT FRAME
								DOWN : PREVIOUS FRAME
							SELECT : EXIT
HISTORY STATUS			MODULE-0		01/17/98		11:21:59		FRAME 100
ORDER - 000000 SITE ID - 00000 SITE TAG - 0000000
**** ACTIVE ALARMS ****		Batt Discharging			Low Batt Warning
OUTPUT VOLTS		A	B	C	DC	LOAD		HERTZ		TIME
		480	480	480
OUTPUT AMPS		325	325	325				60.0
OUTPUT FREQUENCY		480	480	480
OUTPUT VOLTS
OUTPUT AMPS		325	325	325	390					0:01
BATTERY VOLTS		480	480	480
OUTPUT VOLTS
OUPUT AMPS		325	325	325	-645
BATTERY AMPS		0	0	0
INPUT VOLTS
INPUT AMPS		0	0	0				UP : NEXT FRAME
OUPUT VOLTS		480	480	480
								DOWN : PREVIOUS FRAME
OUTPUT AMPS		325	325	325
LOAD KVA						270		SELECT : EXIT

44	Operation	DISCONTINUED
		PRODUCT