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

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Setting Up the LUTM ControllerTransformers tobe UsedIn order to operate correctly, the LUTM controller requires an accurate current valuereceived from the current-transformer secondary.It is essential to use transformers, which accept up to 10 times the nominal currentwith accuracy of at least 5% (5P10). For most purchased CTs it is essential to usemotor protection type transformers to achieve these accuracy requirements.Note: Typical "measurement" type transformers are prohibited as theiroperating range is too limited and therefore they are not sufficiently accurate.TransformerCharacteristicsIf the transformer supplier is Telemecanique: order references.Motor In Primary (A) Secondary (A) No. of pass(es) Reference3.5 to 10.5 30 1 3 LUTC03015.2 to 16 30 1 2 LUTC030110.5 to 32 30 1 1 LUTC030117.5 to 3 50 1 1 LUTC050135 to 105 100 1 1 LUTC100170 to 210 200 1 1 LUTC2001140 to 420 400 1 1 LUTC4001280 to 840 800 1 1 LUTC8001Illustration showing how current transformers are set up.1 pass 2 passesI pI pThe three TIs must be connected in the same way in order to ensure an identicalrelative polarity: the cable must be routed in the same direction for the three currenttransformers (entering via the side marked P1-K-H1).22 1743233 03/2008
Setting Up the LUTM ControllerConnecting thePower Supplyand the ControlInputsIn order to operate, the LUTM controller must be powered by a 24 VI.1 I.2 I.3 I.4 24Vsource.I.5 I.6 I.7 I.8 I.9 I.10Both these terminal blocks are removable.• 2 terminals for 24 V power supply• 1 terminal for the power-supply connection to the inputs• 10 terminals for the control inputsNote: The LUTM controller is rated IP20 or higher. However, for best protectionfrom electric shock and consistent product performance, do not touch theconnections during product operation.The 24 V is distributed internally in order to supply power directly (withoutadditional customer wiring) to:• The advanced (LUCBT or LUCDT) or multifunction (LUCMT) control unit• The LULC• communication moduleNote: Power is supplied to the control unit, the function module and thecommunication module automatically once they are installed in the controller base.1743233 03/2008 23
Page 1: TeSys U LUTM ControllerUser Manual0
Page 6 and 7: Safety InformationPLEASE NOTEElectr
Page 8 and 9: About the BookProduct RelatedWarnin
Page 10 and 11: Setting Up the LUTM ControllerWhat'
Page 12 and 13: Setting Up the LUTM ControllerDescr
Page 14 and 15: Setting Up the LUTM ControllerCompo
Page 16 and 17: Setting Up the LUTM ControllerLUC
Page 18 and 19: Setting Up the LUTM ControllerPrese
Page 20 and 21: Setting Up the LUTM ControllerAssem
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Page 26 and 27: Setting Up the LUTM ControllerStart
Page 28 and 29: Setting Up the LUTM ControllerSetti
Page 30 and 31: Operation of the LUTM controllerOpe
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Page 46 and 47: Technical characteristics of the LU
Page 48 and 49: Technical characteristics of the LU
Page 50: GlossaryEExternal faultThe tripping
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TeSys U LUTM Controller User Manual 03/2008 - Schneider Electric

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