History and Time-Stamped Information

History

MicroLogic trip units generate the following types of history:

• History of alarms associated with measurements (the last 10 alarms are recorded)

• History of trips (the last 18 trips are recorded)

• History of maintenance operations (the last 10 operations are recorded)

• History of earth-leakage protection settings (present and previous settings recorded)

• History of earth-leakage protection tests. Tests with trip and tests without trip are recorded in the same history (the last 10 operations are recorded)

Availability

Consult the history:

• With EcoStruxure Power Commission software

• On a remote controller using the communication network

Time-Stamped Information

Time-stamped information displays dates for important information such as previous protection settings and minimum/maximum current, voltage, and network frequency values.

The table of time-stamped information describes:

• The previous protection configurations and corresponding dates

• The minimum and maximum voltage measurement values and corresponding dates

• The maximum current measurement values and corresponding dates

• The minimum and maximum network frequencies and corresponding dates

The time when the minimum and maximum values were reset is also available.