User manual 09/2009 - Schneider Electric

Using Micrologic Trip UnitsMicrologic 6 E-M LSIG: Protection Parameter Setting ScreensMode Description of Screens Unit Up/Down ArrowsIr: Long time protection pick-up setting for the 3 phasesPreset by a dialAThe up arrow indicatesthe Ir parameter.The down arrowsindicate the 3 phases.Cl: Selection of the long time protection trip class s The up arrow indicatesthe Cl parameter.Y: Choice of type of ventilation• Auto: Natural ventilation by the motor active• Moto: Forced ventilation by a dedicated motor activeIsd: Short time protection pick-up setting for the 3 phases Isd/IrIunbal: Phase unbalance protection pick-up setting(expressed as a % of the average motor current)— The up arrow indicatesthe Y parameter.The up arrow indicatesthe Isd parameter.The down arrowsindicate the 3 phases.% The up arrow indicatesthe Iunbal parameter.The down arrowsindicate the 3 phases.tunbal: Phase unbalance protection time delay setting s The up arrow indicatesthe tunbal parameter.Ijam: Jam motor protection pick-up setting (if OFF isindicated, jam motor protection is not active)Ijam/IrThe up arrow indicatesthe Ijam parameter.The down arrowsindicate the 3 phases.tjam: Jam motor protection time delay setting s The up arrow indicatesthe tjam parameter.Ig: Ground fault protection pick-up settingPreset by a dialIg/InThe up arrow indicatesthe Ig parameter.tg: Ground fault protection time delay setting s The up arrow indicatesthe tg parameter.The down arrowsindicate the 3 phases.34 LV434104 09/2009