Schneider Electric 4000 manual Type Description Operation, High Speed

63230-300-212	Chapter 6—Alarms
April 2001	Alarm Conditions and Alarm Numbers

Table 6–4:	Alarm Types
Type	Description	Operation
		The leading power factor alarm will occur when the test register value becomes more leading than
		the pickup setpoint (such as closer to 0.010) and remains more leading long enough to satisfy the
		pickup delay period. When the value becomes equal to or less leading than the dropout setpoint,
054	Leading Power Factor	that is 1.000, and remains less leading for the dropout delay period, the alarm will dropout. Both
		the pickup setpoint and the dropout setpoint must be positive values representing leading power
		factor. Enter setpoints as integer values representing power factor in thousandths. For example, to
		define a dropout setpoint of 0.5, enter 500. Delays are in seconds.
		The lagging power factor alarm will occur when the test register value becomes more lagging than
		the pickup setpoint (such as closer to –0.010) and remains more lagging long enough to satisfy the
		pickup delay period. When the value becomes equal to or less lagging than the dropout setpoint,
055	Lagging Power Factor	that is 1.000, and remains less lagging for the dropout delay period, the alarm will dropout. Both
		the pickup setpoint and the dropout setpoint must be positive values representing lagging power
		factor. Enter setpoints as integer values representing power factor in thousandths. For example, to
		define a dropout setpoint of –0.5, enter 500. Delays are in seconds.
High Speed

010

011

012

020

021

051

052

053

	If the test register value exceeds the setpoint long enough to satisfy the pickup delay period, the
Over Value Alarm	alarm condition will be true. When the value in the test register falls below the dropout setpoint long
	enough to satisfy the dropout delay period, the alarm will dropout. Pickup and dropout setpoints
	are positive, delays are in hundreds of milliseconds.
	If the absolute value in the test register exceeds the setpoint long enough to satisfy the pickup delay
Over Power Alarm	period, the alarm condition will be true. When the value in the test register falls below the dropout
	setpoint long enough to satisfy the dropout delay period, the alarm will dropout. Pickup and dropout
	setpoints are positive, delays are in hundreds of milliseconds.
	If the absolute value in the test register exceeds the setpoint long enough to satisfy the pickup delay
	period, the alarm condition will be true. When the value in the test register falls below the dropout
Over Reverse Power Alarm	setpoint long enough to satisfy the dropout delay period, the alarm will dropout. This alarm will only
	hold true for reverse power conditions. Positive power values will not cause the alarm to occur.
	Pickup and dropout setpoints are positive, delays are in hundreds of milliseconds.
	If the test register value is below the setpoint long enough to satisfy the pickup delay period, the
Under Value Alarm	alarm condition will be true. When the value in the test register rises above the dropout setpoint
	long enough to satisfy the dropout delay period, the alarm will dropout. Pickup and dropout
	setpoints are positive, delays are in hundreds of milliseconds.
	If the absolute value in the test register is below the setpoint long enough to satisfy the pickup delay
Under Power Alarm	period, the alarm condition will be true. When the value in the test register rises above the dropout
	setpoint long enough to satisfy the dropout delay period, the alarm will dropout. Pickup and dropout
	setpoints are positive, delays are in hundreds of milliseconds.
	The phase reversal alarm will occur when ever the phase voltage waveform rotation differs from the
Phase Reversal	default phase rotation. The ABC phase rotation is assumed to be normal. If a CBA normal phase
	rotation is normal, the user should reprogram the circuit monitor’s phase rotation ABC to CBA
	phase rotation. The pickup and dropout setpoints and delays for phase reversal do no apply.
	The phase loss voltage alarm will occur when any one or two phase voltages (but not all) fall to the
	pickup value and remain at or below the pickup value long enough to satisfy the specified pickup
Phase Loss, Voltage	delay. When all of the phases remain at or above the dropout value for the dropout delay period, or
	when all of the phases drop below the specified phase loss pickup value, the alarm will dropout.
	Pickup and dropout setpoints are positive, delays are in seconds.
	The phase loss current alarm will occur when any one or two phase currents (but not all) fall to the
	pickup value and remain at or below the pickup value long enough to satisfy the specified pickup
Phase Loss, Current	delay. When all of the phases remain at or above the dropout value for the dropout delay period, or
	when all of the phases drop below the specified phase loss pickup value, the alarm will dropout.
	Pickup and dropout setpoints are positive, delays are in hundreds of milliseconds.

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