User manual 09/2009 - Schneider Electric

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User manual 09/2009 - Schneider Electric

Using Micrologic Trip UnitsProtection Parameter ReadoutA protection parameter is selected using the key. This selection is only possible in Readout mode,i.e. when the padlock is locked.• Scrolling is cyclical.• The up arrow (1) indicates the selected protection parameter.Example: Ir pick-up selected(1) For the neutral protection parameters, the up arrow is replaced by the down arrow which points to N.Example of Protection Parameter ReadoutReadout of the setting values for the long time protection Ir pick-up, tr time delay and the short timeprotection Isd pick-up:Step Action Using Display1 Select the Protection parameterModereadout mode (main screendisplayed).The long time protection Ir pick-upsetting value is displayed in amps.2 Select the long time protection trtime delay.The long time protection tr time delaysetting value is displayed inseconds.3 Select the short time protection Isdpick-upThe short time protection Isd pick-upsetting value is displayed in amps.Neutral Declaration Readout (3-Pole Trip Unit)The Neutral declaration readout mode is dedicated to this parameter: navigation is therefore limited totheModekey.Step Action Using Display1 Select the Neutral declarationModereadout mode.The neutral declaration value isdisplayed:• N: Neutral protection active (3-pole trip unit with ENCT optiondeclared)• noN: Neutral protection not active(3-pole trip unit without ENCToption or with ENCT option notdeclared)LV434104 09/2009 23

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