TeSys U LUTM Controller User Manual 03/2008 - Schneider Electric

Setting Up the LUTM ControllerPresentation of the Power UnitDescriptionThe power unit consists of:• Three current transformers (see Transformer Characteristics, p. 22):- Supplied by Telemecanique ==> LUTC••01- Other suppliers ==> characteristics to be adhered to• A contactor• A short-circuit protection deviceNote: In combination with LUTC••01 current transformers, the LUTM••BL controllerbase must only be used with motors from 0.75 kW to 450 kW/800 A nominal.CurrentTransformer andContactorProduct reference (Telemecanique) of the current transformers and contactor.Current transformers3 * LUTC••01Contactor Non-reversing LC1•••• Reversing LC2••••ProtectionAgainst Short-CircuitsProtection against short-circuits is provided by one of the following:• Magnetic circuit-breaker• FusesVALIDITY OF THERMAL PROTECTIONWARNINGThermal-magnetic motor circuit-breakers are prohibited since they incorporate anoverload protection function, which would duplicate that in the modules andinterfere with the control-unit analysis.Failure to follow these instructions can result in death, serious injury, orequipment damage.18 1743233 03/2008