User manual 09/2009 - Schneider Electric

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User manual 09/2009 - Schneider Electric

Using Micrologic Trip UnitsSet of 2 Dials and a MicroswitchBoth dials are assigned to presetting the protection parameters. The microswitch is assigned tolocking/unlocking the protection parameter settings.No. Description1 Pick-up Ir preset dial for all Micrologic trip unit types2 Preset dial:• 2A (Micrologic 5): For the short time protection pick-up Isd• 2B (Micrologic 6): For the ground fault protection pick-up Ig3 Microswitch for locking/unlocking the protection parameter settingsDisplayThe LCD display provides all the information needed to use the trip unit. The list of protection parametersis customized according to the Micrologic trip unit type: 5, 6 or 6 E-M.No. Description1 5 pictograms (how these are combined defines the mode):: Metering : Readout : Protection parameter : Setting : Locking2 Up arrow pointing to protection parameter currently being set3 List of protection parameters according to the Micrologic trip unit type:• Micrologic 5:• Micrologic 6:• Micrologic 6 E-M:4 Value of the measured quantity5 Unit of the measured quantity6 Navigation arrows7 Down arrow(s) pointing to the selected phase(s), neutral or the ground8 Phases (1/A, 2/B, 3/C), neutral (N) and groundDisplay BacklightingWhen the trip unit is powered by an external 24 V DC power supply, the Micrologic trip unit display haswhite backlighting that is:• Low intensity continuously• High intensity for one minute, after pressing one of the keys on the keypadThe display backlighting is:• Deactivated if the temperature exceeds 65°C• Reactivated once the temperature drops back below 60°CIf the trip unit is powered by the pocket battery module, the display unit is not backlit.16 LV434104 09/2009