APC VS 50, VS 100 user manual LVD Operation, System/Preferences

PARAMETER NAME/	DESCRIPTION	SETTINGS (Default
[MENU LOCATION]		settings in BOLD)
Rectifier Fault Alarm (RFA)	The status will be on if the rectifier output	Status Only
Status	has failed.
{Status Only}
[Power Modules/Rectifiers]
Rectifier RFA Alarm	Defines the output relay that is energized	Ignore, Minor, Major
[Power Modules/Rectifiers]	or special rectifier alarm group n of N that	Output Relay 1-6,n of N
	occurs when a rectifier output has failed.
Rectifier Standby Alarm	Defines the output relay that is that is	Ignore, Minor, Major
[Power Modules/Rectifiers]	energized or special rectifier alarm group	Output Relay 1-6, n of N
	n of N that occurs when the controller is
	holding a rectifier in the standby mode.
Rectifier Standby Alarm Status	The status will be “ON” if the controller is	This feature is supported
{Status Only}	holding the rectifier in the standby mode.	by the standard SNMP
[Power Modules/Rectifiers]		card monitor, but is not
		supported by this dc
		system.
Remote Configurable	This allows settings to be made using the	Enabled, Disabled
[System/DC Parameters]	SNMP interface card. Disabling this
	feature allows changes to be made
	through the local interface only. Status
	and parameters are still displayed.
Store Configuration	This feature is supported by the standard	Enable, Disable
[Power Modules/Rectifiers]	SNMP card monitor, but is not supported
	by this dc system.
System Current	The total system output current	Status Only
{Status Only}	(calculated as the sum of the individual
[System/DC Parameters]	rectifier output currents).
System Temperature	System temperature measured within the	Status Only
{Status Only}	controller.
[System/DC Parameters]
System Voltage	Voltage readout measured by the	Status Only
{Status Only}	controller at the output of the rectifiers.
[System/DC Parameters]	This voltage is based on calculations
	performed by the controller based on the
	Battery Float, Battery Temperature
	Compensation and Battery Maximum
	Recharge parameter settings.
Temperature Display Units	Enables selection of Fahrenheit or	Fahrenheit, Celsius
[System/Preferences]	Celsius temperature scale (Fahrenheit
	“OFF” displays readings in °C).
Time	Network management card Internal	Current Time
[System/Date & Time]	system clock time (24-hour format).
	Used as a time stamp in the web card
	event log.

6.9. LVD Operation

In order to prevent damage to the battery due to deep discharge, the dc power system has a Low Voltage Disconnect (LVD). When the battery voltage reaches the threshold set by the LVD 1 Trip Voltage setting during discharge, the dc power system will activate the LVD contactor to disconnect the battery from the system. The LVD will remain open until ac power is restored to

Magnum VS –48 Vdc User’s Manual Page 44