Danfoss VLT HVAC Drive FC 102 Programming Manual

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

Contents

All digital inputs can be programmed to these functions[0] No operation No reaction to signals transmitted toterminal.[1] Reset Resets frequency converter after a trip/alarm.Not all alarms can be reset.[2] Coast inverse Leaves motor in free mode. Logic0⇒coasting stop.(Default Digital input 27): Coasting stop,inverted input (NC).[3] Coast andreset inverseReset and coasting stop, inverted input (NC).Leaves motor in free mode and resets thefrequency converter. Logic 0⇒coasting stopand reset.[5] DC-brakeinverseInverted input for DC braking (NC).Stops motor by energising it with a DCcurrent for a certain time period. Seeparameter 2-01 DC Brake Current toparameter 2-03 DC Brake Cut In Speed [RPM].The function is only active when the valuein parameter 2-02 DC Braking Time isdifferent from 0. Logic 0⇒DC braking.This selection is not possible whenparameter 1-10 Motor Construction is set to[1] PM non-salient SPM.[6] Stop inverse Stop inverted function. Generates a stopfunction when the selected terminal goesfrom logical level 1 to 0. The stop isperformed according to the selected ramptime• Parameter 3-42 Ramp 1 Ramp DownTime• Parameter 3-52 Ramp 2 Ramp DownTimeNOTICEWhen the frequency converter is atthe torque limit and has received astop command, it may not stop byitself. To ensure that the frequencyconverter stops, configure a digitaloutput to [27] Torque limit & stop andconnect this digital output to a digitalinput that is configured as coast.[7] ExternalInterlockSame function as coasting inverse and stopinverse, but this option generates the alarmmessage External fault on the display whenthe terminal programmed for coast inversehas signal 0. The alarm message is alsoactive via digital outputs and relay outputs,if programmed for external interlock. Whenthe external interlock is removed, the alarmcan be reset using a digital input or the[RESET] key. A delay can be programmed inparameter 22-00 External Interlock Delay. Afterapplying a signal to the input, the reactiondescribed above is delayed with the time setin parameter 22-00 External Interlock Delay.[8] Start Select start for a start/stop command. Logic1=start, logic 0=stop.(Default: Digital input 18).[9] Latched start The motor starts, if a pulse is applied forminimum. 2 ms. The motor stops when stopinverse is activated.[10] Reversing Changes direction of motor shaft rotation.Select Logic 1 to reverse. The reversingsignal only changes the direction of rotation.It does not activate the start function. Selectboth directions in parameter 4-10 MotorSpeed Direction.(Default: Digital input 19).[11] StartreversingUsed for start/stop and for reversing on thesame wire. Signals on start are not allowedat the same time.[14] Jog Used for activating jog speed. Seeparameter 3-11 Jog Speed [Hz].(Default: Digital input 29)[15] Presetreference onUsed for shifting between external referenceand preset reference. It is assumed thatExternal/preset [1] has been selected inparameter 3-04 Reference Function. Logic0=external reference active; logic 1=1 of the8 preset references is active.[16] Preset ref bit0Enables a choice between 1 of the 8 presetreferences according to Table 3.10.[17] Preset ref bit1Enables a choice between 1 of the 8 presetreferences according to Table 3.10.[18] Preset ref bit2Enables a choice between 1 of the 8 presetreferences according to Table 3.10.Preset ref. bit 2 1 0Preset ref. 0 0 0 0Preset ref. 1 0 0 1Preset ref. 2 0 1 0Preset ref. 3 0 1 1Preset ref. 4 1 0 0Preset ref. 5 1 0 1Preset ref. 6 1 1 0Preset ref. 7 1 1 1Table 3.10 Digital Inputs Preset ReferenceBit[19] Freeze ref Freezes actual reference. The frozenreference is now the point of enable/condition for speed up and speed down tobe used. If speed up/down is used, thespeed change always follows ramp 2(parameter 3-51 Ramp 2 Ramp Up Time andparameter 3-52 Ramp 2 Ramp Down Time) inthe range 0 – 3-03 Maximum Reference. (ForParameter Descriptions VLT® HVAC Drive FC 10270 Danfoss A/S © 03/2015 All rights reserved. MG11CE0233