Configuring sag/swell alarms using ION Setup

To configure sag/swell alarm settings using ION Setup:

  1. Start ION Setup.
  2. Open the Setup Assistant for your meter.
  3. Click Alarming > Sag/Swell.
  4. Select the parameter you want to configure and click Edit.

    The setup dialog box for that parameter appears.

  5. Configure the parameters as required.

    The values you need to set vary depending on the type of sag/swell alarm you are configuring.

Voltage sag/swell setup parameters
Parameter Value/Range Description
Enable/Disable Enabled or Disabled

Specifies if sag/swell recording and alarming is enabled.
Nominal 1–999,999

The primary RMS voltage for the power system. Use the line-to-line voltage for a Delta configured device and line-to-neutral voltage for a Wye configured device.

For more information on configuring Volts Mode, see Configuring metering parameters.
Swell Limit Percentage of nominal Specifies the swell limit expressed as a percentage of the nominal voltage.
Sag Limit Percentage of nominal Specifies the sag limit expressed as a percentage of the nominal voltage.
Hysteresis Percentage – see description

Specifies the difference in magnitude between the sag or swell limit and the threshold for the power quality event to be considered over.

For example, if the meter has the sag limit set to 90% of nominal and the hysteresis is set to 2%, this means that in a sag event, the voltage needs to return to 92% of nominal for the sag event to be considered over
Alarm priority See description

Select the alarm priority you want to associate with Sag/Swell alarms.

To stop an alarm from being displayed without affecting other meter features, set the alarm priority to Info Only.
Current sag/swell setup parameters
Parameter Value/Range Description
Enable/Disable Enabled or Disabled

Specifies if sag/swell recording and alarming is enabled.
Nominal 1–999,999 Specifies the nominal current value used for current sag or current swell detection.
Pickup Percentage of nominal Specifies the percentage the current must deviate from the nominal current to be classified as a sag or a swell.
Dropout Percentage of nominal Specifies the percentage of nominal to which the current must recover to signal the end of the sag or the swell.
Hysteresis N/A

Displays the difference in magnitude between the sag or swell Pickup and Dropout values.

To change the hysteresis, change the Pickup or Dropout values.
Alarm priority See description

Select the alarm priority you want to associate with Sag/Swell alarms.

To stop an alarm from being displayed without affecting other meter features, set the alarm priority to Info Only.