Navigation Principles
Lock/Unlock the Settings
The protection settings are locked when the transparent cover is closed and sealed to prevent access to the adjustment dials and the locking/unlocking microswitch.
A pictogram on the display indicates whether the protection settings are locked:
-
Padlock locked
: The protection settings are locked. -
Padlock unlocked
: The protection settings are unlocked.
To unlock the protection settings:
-
Open the transparent cover
-
Press the lock/unlock microswitch or turn one of the adjustment dials
To lock the protection settings, press the lock/unlock microswitch again.
The protection settings also lock automatically five minutes after pressing a key on the keypad or turning one of the dials on the MicroLogic trip unit.
Trip Unit Modes
Information displays on the MicroLogic trip unit are based on its mode.
The modes available depend on:
-
Whether the settings are locked
-
The trip unit version (3-pole or 4-pole)
The combination of pictograms defines the mode.
The following tables show the possible modes:
|
Pictograms |
Mode accessible with padlock locked |
|---|---|
|
|
|
|
|
Peak demand readout and reset |
|
|
Protection function readout |
|
|
Neutral status readout (3-pole MicroLogic trip unit) |
|
Pictograms |
Mode accessible with padlock unlocked |
|---|---|
|
|
|
|
|
Peak demand readout and reset |
|
|
Protection function setting |
|
|
Neutral status setting (3-pole MicroLogic trip unit) |
Mode Selection
Select
mode by successive presses on the 
key:
-
The modes scroll cyclically.
-
Press the lock/unlock microswitch to switch between readout mode and setting mode.
Screensaver
The screensaver displays the instantaneous current passing through the most heavily loaded phase (Instantaneous measurement readout mode).
The MicroLogic display automatically reverts to a screensaver:
-
In padlock locked mode, 20 seconds after the last action on the keypad
-
In padlock unlocked mode, 5 minutes after the last action on the keypad or dials