6.5.5. Relay OutputRelay 1• Terminal 01: common• Terminal 02: normal open 240 V AC• Terminal 03: normal closed 240 V ACRelay 2 (Not FC 301)• Terminal 04: common• Terminal 05: normal open 400 V AC• Terminal 06: normal closed 240 V ACRelay 1 and relay 2 are programmed in par.5-40, 5-41, and 5-42.Additional relay outputs by using option mod-ule MCB 105.6.5.6. Parallel Connection of MotorsThe adjustable frequency drive can controlseveral parallel-connected motors. The totalcurrent consumption of the motors must notexceed the rated output current I INV for theadjustable frequency drive.This is only recommended when U/f is selec-ted in par. 1-01.NOTEInstallation with cables connec-ted in a common joint as in il-lustration 1 is only recommen-ded for short cable lengths.NOTEWhen motors are connected inparallel, par. 1-02AutomaticMotor Adaptation (AMA) cannotbe used, and par. 1-01MotorControl Principle must be set toSpecial motor characteristics(U/f).Problems may arise at start and at low RPM values if motor sizes are widely different, becausesmall motors' relatively high ohmic resistance in the stator calls for a higher voltage at start andat low RPM values.6. How to Install FC 300 Design Guide132 MG.33.B9.22 - VLT® is a registered Danfoss trademark.6
