Examples of Using Alarms

Presentation

Use EcoStruxure Power Commission software to select:

• Quantity to be monitored

• Alarm function settings

Overvalue Condition

Alarms on overvalue condition are dedicated to monitoring:

• Overvoltages

• Phase unbalance (MicroLogic 6 E-M)

• Overcurrents

• Overfrequencies

• Current unbalances

• Power overruns

• Total harmonic distortion (THD) overruns

The value of the drop-out threshold must always be lower than the pickup threshold.

Undervalue Condition

The value of the drop-out threshold must always be higher than the pickup threshold.

Alarms on undervalue condition are dedicated to supervision of:

• Undervoltages

• Underloads (MicroLogic 6 E-M)

• Underfrequencies

Alarms on Equality Condition

The measurements associated with alarms on an equality condition correspond to a load state:

• Operating quadrant

• Leading or lagging reactive power