Danfoss VLT FC 100 LonWorks Manual

Also see for FC 100 Series: Operating instructions Instruction manual Manual Manual Programming guide

Danfoss VLT FC 100 LonWorks Manual Manual pdf 42 page image

6.2 Danfoss FC Control Profile6.2.1 FC Control ProfileControl Word According to FC Profile(Par. 8-10 set toFC Profile)Bit Bit value=0 Bit value=100 Reference value External selection lsb01 Reference value External selection msb02 DC brake Ramp03 Coasting No coasting04 Quick stop Ramp05 Hold output freq. Use ramp06 Ramp stop Start07 No function Reset08 No function Jog09 Ramp 1 Ramp 210 Data invalid Data valid11 No function Relay 01 active12 No function Relay 04 active13 Parameter set-up Selection lsb14 Parameter set-up Selection msb15 No function Reverse6.2.2 Explanation of the Control BitsBits 00 and 01:Bits 00 and 01 are used to choose between the four reference values,which are pre-programmed in par. 3-10Preset Reference in accordancewith the following table:Programmed ref. value Parameter Bit 01 Bit001 3-10 [0] 0 02 3-10 [1] 0 13 3-10 [2] 1 04 3-10 [3] 1 1NB!In par.8-56Preset Reference Select, a selection ismade to define how Bit 00/01 gates with the corre-sponding function on the digital inputs.Bit 02, DC brake:Bit 02 set to [0] leads to DC braking and stop of the motor. Braking cur-rent and duration are set in par. 2-01DC Brake Current and par. 2-02DCBraking Time.Bit 02 set to [1] leads to ramping.Bit 03, Coasting:Bit 03 set to [0] causes the frequency converter to immediately releaseof the motor (the output transistors are "shut off"), so that it coasts to astandstill.Bit 03 set to [1] enables the frequency converter to start the motor ifother starting conditions have been fulfilled.NB!In par.8-50Coasting Select, a selection is made to de-fine how Bit 03 gates with the corresponding functionon a digital input.Bit 04, Quick Stop:Bit 04 set to [0] causes a stop in which the motor speed is ramped downto stop via par. 3-81Quick Stop Ramp Time.Bit 05, Hold output frequency:Bit 05 set to [0] causes the present output frequency (Hz) to freeze. Thefrozen output frequency can then be changed only by means of the digitalinputs set by par. 5-10 to 5-15, programmed to [Speed up] or [Speeddown].NB!If [Freeze output] is active, the frequency convertercan only be stopped by the following:• Bit 03 Coasting stop• Bit 02 DC braking• Digital input (par. 5-10 to 5-15) programmedto DC braking, Coasting stop or Reset andcoasting stop.6 How to control the Frequency Converter VLT® FC 100 LonWorks42 MG.11.E2.02 - VLT® is a registered Danfoss trademark6