ABB ACH550 series User Manual page 46

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Note! The learn mode is terminated by any of the following conditions:
User clears the learn mode request (Parameter 1628 = NOT SEL)

The running time in learn mode equals the time set by Parameter 1629

The user enters drive mode.

At the end of learn mode, the average bypass power is calculated.
From that point on, whenever the system is operated in drive mode, it keeps a
running total of the energy savings.
The energy savings is measured from a certain point in time. This starting point is
triggered by any of the following events:
Learn mode is terminated

Drive parameter 0115 (KWH COUNTER) is reset

Bypass parameter 0114 (KWH SAVED) is reset

Overview of Bypass Functionality
E-Clipse Bypass Configurations for ACH550 Drives