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[7] ExternalInterlockSame function as Coasting stop, inverse, butExternal Interlock generates the alarmmessage external fault in the display whenthe terminal which is programmed for CoastInverse is logic ‘0’. The alarm message isalso active via digital outputs and relayoutputs, if programmed for ExternalInterlock. The alarm can be reset using adigital input or the [Reset] key if the causefor the external interlock has been removed.A delay can be programmed in22-00 External Interlock Delay. After applyinga signal to the input, the reaction describedabove is delayed with the time set in22-00 External Interlock Delay.[8] Start Select start value for a start/stop command.‘1’=start, ‘0’=stop.(Default Digital input 18)[9] Latched start Motor starts, if a pulse is applied for min. 2ms. Motor stops when Stop inverse isactivated[10] Reversing Changes direction of motor shaft rotation.Select Logic ‘1’ to reverse. The reversingsignal only changes the direction ofrotation. It does not activate the startfunction. Select both directions in4-10 Motor Speed 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. See 3-11 JogSpeed [Hz].(Default Digital input 29)[15] Presetreference onUsed for shifting between external referenceand preset reference. It is assumed that [1]External/preset has been selected inparameter 3-04 Reference Function. Logic '0'= external reference active; logic '1' = oneof the 8 preset references is active.[16] Preset ref bit0Enables a selection of one of the 8 presetreferences according to Table 6.8.[17] Preset ref bit1Enables a selection of one of the 8 presetreferences according to Table 6.8.[18] Preset ref bit2Enables a selection of one of the 8 presetreferences according to Table 6.8.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 6.8 Preset Ref. Bit[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(3-51 Ramp 2 Ramp Up Time and 3-52 Ramp2 Ramp Down Time) in the range 0 -3-03 Maximum Reference MaximumReference.[20] Freeze output Freezes actual motor frequency (Hz). Thefrozen motor frequency is now the point ofenable/condition for speed up and speeddown to be used. If speed up/down is used,the speed change always follows ramp 2(3-51 Ramp 2 Ramp Up Time and 3-52 Ramp2 Ramp Down Time) in the range 0 -parameter 1-23 Motor Frequency.NOTICEWhen [20] Freeze output is active, thefrequency converter cannot bestopped via a low ‘start [13]’ signal.Stop the frequency converter via aterminal programmed for [2] Coastinverse or [3] Coast and reset, inverse.[21] Speed up For digital control of the up/down speed(motor potentiometer). Activate thisfunction by selecting either [19] Freezereference or [20] Freeze output. When [21]Speed up is activated for less than 400 msthe resulting reference is increased by 0.1%.If [21] Speed up is activated for more than400 ms, the resulting reference rampsaccording to Ramp 1 inparameter 3-41 Ramp 1 Ramp Up Time.[22] Speed down Same as [21] Speed up.[23] Set-up selectbit 0Selects one of the 4 set-ups. Set 0-10 ActiveSet-up to Multi Set-up.[24] Set-up selectbit 1Same as [23] Set-up select bit 0.(Default Digital input 32)[32] Pulse input Select [32] Pulse input when using a pulsesequence as either reference or feedback.Scaling is done in parameter group 5-5*Pulse Input.How to programme the freque... Operating InstructionsMG20Y202 Danfoss A/S © Rev. 06/2014 All rights reserved. 756 6 PreviousNext |