Overview

Before running the automatic trip curve tests with preconfigured test points, you must select one of the following time-current trip curve test:

• Normal: Test the trip curves of the protection functions available on the MicroLogic trip unit.

• ERMS: Test the instantaneous protection trip curve when the Energy Reduction Maintenance Settings (ERMS) mode is active.

• AMS/MMS: Test the short-time protection trip curve when the Alternate Maintenance Settings (AMS) or Maintenance Mode Switch (MMS) mode is active.

The decision to perform the ERMS or AMS/MMS test depends on the trip unit version and the available maintenance switch.

After selecting the time-current trip curve to test, you can select the protection functions available on the MicroLogic trip unit you want to test. By default:

• With Normal test, all protection functions available on the MicroLogic trip unit are preselected for testing.

• With ERMS test, only the instantaneous protection function is preselected for testing. You can add other protection functions available on the MicroLogic trip unit.

• With AMS/MMS test, only the short-time protection function is preselected for testing. You can add other protection functions available on the MicroLogic trip unit.