Danfoss VLT FC 102 Series Design Manual

Also see for VLT HVAC Drive FC 102: Operating instructions Service guide Programming guide Installation guide Installation guide

Contents

NOTICE!Installations with cables connected using a common joint, as shown in the first example in the picture, are onlyrecommended for short cable lengths.NOTICE!When motors are connected in parallel, 1-02 Flux Motor Feedback Source cannot be used, and 1-01 Motor ControlPrinciple must be set to Special motor characteristics (U/f).130BB838.12abcdefFigure 6.41 Parallel Motor Connectionc, d) The total motor cable length specified in section 4.5, General Specifications, is valid as long as the parallel cables arekept short (less than 33 ft [10 m] each).d, e) Consider voltage drop across the motor cables.e) Be aware of the maximum motor cable length specified in Table 6.35.e) Use LC filter for long parallel cables.Electrical Installation Design GuideMG11BC22 Danfoss A/S © Rev. 06/2014 All rights reserved. 1176 6