User manual 09/2009 - Schneider Electric

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User manual 09/2009 - Schneider Electric

Using Micrologic Trip UnitsMicrologic 6 E-M LSIG: Protection Parameter Setting Readout ScreensMode Description of Screens Unit Up/Down ArrowsIr: Long time protection pick-up value for the phases A The up arrow indicatesthe Ir parameter.The down arrowsindicate the 3 phases.Cl: Long time protection trip class (value at 7.2 Ir) s The up arrow indicatesthe Cl parameter.Y: Type of ventilation• Auto: Natural ventilation by the motor• Moto: Forced ventilation by a dedicated motor— The up arrow indicatesthe Y parameter.Isd: Short time protection pick-up value for the phases A The up arrow indicatesthe Isd parameter.The down arrowsindicate the 3 phases.Iunbal: Phase unbalance protection pick-up value(expressed as a % of the average motor current)% The up arrow indicatesthe Iunbal parameter.The down arrowsindicate the 3 phases.tunbal: Phase unbalance protection time delay value s The up arrow indicatesthe tunbal parameter.Ijam: Jam motor protection pick-up value (if OFF isindicated, jam motor protection is not active)AThe up arrow indicatesthe Ijam parameter.The down arrowsindicate the 3 phases.tjam: Jam motor protection time delay value s The up arrow indicatesthe tjam parameter.Ig: Ground fault protection pick-up value A The up arrow indicatesthe Ig parameter.The down arrowsindicate the 3 phases.tg: Ground fault protection time delay valueOFF is always indicated: the I 2 t inverse time curveprotection function is not available on Micrologic 6 E-Mtrip units.sThe up arrow indicatesthe tg parameter.LV434104 09/2009 33

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