Setpoint alarms compare the actual value of a parameter to a specified limit or range of values. These include measured voltage and current values and calculated power quality values.
Some setpoint alarms use high-speed measurements for up to 1 millisecond resolution.
|Digital||Digital alarms are triggered on a digital input’s on/off state.|
|Disturbance (sag/swell)||Disturbance alarms are triggered on a measured sag or swell.|
|Unary||Unary alarms are not configurable and generate an alarm based on the meter’s state, for example, the meter powering up.|
Active: the meter detects the alarm condition is met.
Historical: the alarm condition previously existed but the condition has since returned to a non-alarm state.
See the ION Reference, available from www.se.com, for more information about Setpoint, Relative Setpoint, Digital Input, Disturbance Analyzer, and Sag/Swell modules.