American Power Conversion MX28B400 Sys Temp, 26.7, Sys Voltage, Test Maj Rly, Test Min Rly, Time

Parameter Locations, Descriptions, and Default Values

PARAMETER NAME/	DESCRIPTION	DISPLAY SCREENS /
[MENU LOCATION]		DEFAULT SETTINGS
System Temperature	System temperature measured within the	Sys Temp	+
{Status Only}	control unit.	26.7	C
[STATUS]
System Voltage	System output voltage measured	Sys Voltage	+
{Status Only}	between the power plant +24V and	27.00 V
[STATUS]	return buses.
Test Major Relay	Setting this parameter to “ON” de-	Test Maj Rly	m+
Security Level {1}	energizes the Major Relay and turns on	OFF
[SYSTEM/DIAG]	the “MAJ” LED on the control unit front
	panel. In normal operation Major Relay
	is energized so that when a loss of +24
	Vdc power occurs, the relay will change
	state.
Test Minor Relay	Setting this parameter to “ON” energizes	Test Min Rly	m+
Security Level {1}	the Minor Relay and turns on the “MIN”	OFF
[SYSTEM/DIAG]	LED on the control unit front panel.
Test Relay 1	Setting this parameter to “ON” energizes	Test Relay 1	m+
Security Level {1}	Relay 1 and turns on the “ALM1” LED on	OFF
[SYSTEM/DIAG]	the control unit front panel.
•	•	•
•	•
		•
•	•
Test Relay 6	Setting this parameter to “ON” energizes	•
Security Level {1}	Relay 6 and turns on the “ALM6” LED on	Test Relay 6	m+
[SYSTEM/DIAG]	the control unit front panel.	OFF
Test Relay Enable	This parameter must be set to “Enable”	Test Relay En m+
Security Level {1}	to permit the eight output relays to be	Disable
[SYSTEM/DIAG]	manually tested; otherwise, the state of
	the relays will be per system conditions.
Time	Internal system clock time (24-hour	Time	m+
Security Level {1}	format). Used as a date stamp in the	9:00:25
[SYSTEM/DATE]	event log.

MX28B400 +24 VDC User’s Manual Page 33