Presentation

Tree Navigation

Two navigation trees are provided for each MicroLogic trip unit:

A display tree to view the main values and settings of the trip unit
A setting tree to modify the settings.

Each tree is divided up into several branches.

Each branch provides access to values or settings that depend on the type of MicroLogic trip unit, for example:

Measurements (instantaneous current, demand current, maximum instantaneous current, voltage, power, energy).
Trip history
Protection setting display
Settings (for modification of communication, measurement, or output parameters).

For more information about the tree branches:

For MicroLogic A, refer to MicroLogic A Menu Display.
For MicroLogic E, refer to MicroLogic E Menu Display.

Default Screen

The default screen displays the instantaneous current of the most heavily loaded phase.

Example: Phase 1 is the most heavily loaded.

Navigating with the Keypad Buttons

Button	Description
	Press the menu button to: Scroll through the different branches of a tree. Return to the instantaneous I1 current screen of the Display tree from the last branch of a tree. Validate and lock a two-digit setting (MicroLogic E).
	Press briefly the arrow button (< 1 s) to scroll through the different screens of a branch. Press and hold the arrow button (> 4 s) to reset maximum values or to save settings.
	Press the menu and arrow buttons simultaneously to enter the Setting tree from any screen of the Display tree. Press and hold (> 4 s).
(MicroLogic E)	Press this button to Change from Tree navigation mode to Quick View mode. Unlock and access locked settings. Scroll through setting parameters.

If no key is pressed for a few seconds, the default screen is displayed.

Screen Information

The positions of the downward arrows (one, two, or three arrows) under the information displayed on the screen indicate the phases concerned, as shown for example in the screens below.


6 A current in the neutral (arrow above the N).	360 A current in phase 1/A (arrow above 1/A).	380 V phase-to-phase voltage between phases 1/A and 2/B (arrows above 1/A and 2/B).	220 V phase-to-neutral voltage between phase 2/B and neutral (arrows above N and 2/B).	2.556 MW total active power of the 3 phases (arrows above the 3 phases).