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Alarms and alerts
Alarms overview
An alarm is the meter’s means of notifying you when an alarm condition is
detected, such as an error or an event that falls outside of normal operating
conditions.
Alarms are typically setpoint-driven and can be programmed to monitor certain
behaviors, events or unwanted conditions in your electrical system.
You can configure your meter to generate and display high, medium and low
priority alarms when predefined events are detected in the meter’s measured
values or operating states. Your meter also logs the alarm event information.
The meter ships with some alarms already enabled from the factory. Other alarms
need to be configured before the meter can generate alarms.
Your can customize the meter alarms as required, such as changing the priority.
You can also create custom alarms using the advanced features of your meter.
Alarm types
Your meter has five types of alarms.
Type
Description
Setpoint
(standard)
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.
Transient
Transient alarms are triggered on a measured transient event.
Unary
Unary alarms are not configurable and generate an alarm based on the meter’s
state, for example, the meter powering up.
Alarms have two states:
•
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.usa.siemens.com/pds, for more
information about Setpoint, Relative Setpoint, Digital Input, Disturbance Analyzer,
Transient and Sag/Swell modules.
Related Topics
Standard and high-speed alarms
Alarm speed is determined by the update rate of the framework for the particular
alarm.
Standard alarm
Standard alarms have a detection rate of once every 1 second.
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Summary of Contents for 9810 Series
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