VLT ® 2900 Series Set the required maximum output current I LIM . Set the preset reference(s) that is/are to be the op- tions. 0.0 - par. 224 Warning: High current, I HIGH If the output current falls below the preset limit I LOW a warning is given. Parameters 223-228 Warning functions are out of func- tion during ramp-up after a start command and after a stop command or during stop.The warning functions are activated when the output frequency has reached the resulting reference. The signal outputs can be pro- grammed to give a warning signal via terminal 46 and via the relay output.
0.0 A 0.00 - 100% of the given reference 0.00% In this parameter, the percentage value can be set which will either be added to or deducted from the re- mote-controlled references. The remote-controlled reference is the sum of preset references, analogue references, pulse reference and any references from serial communication. The lower signal limit of the output current I LOW must be programmed within the normal working range of the frequency converter. If Catch up is active via a digital input, the percentage value in parameter 219 Catch up/Slow down refer- ence will be added to the remote-controlled reference.
If Slow down is active via a digital input, the percentage value in parameter 219 Catch up/Slow down refer- ence will be deducted from the remote-controlled ref- erence. Programming 0 - XXX.X % of par. 105 In this parameter, the maximum output current I LIM is set. The factory-set value corresponds to the maxi- mum output current I MAX . If the current limit is to be used as motor protection, set the rated motor current. If the current limit is set above 100% (the rated output current of the frequency converter, I INV. ), the frequency converter can only handle a load intermittently, i.e. for short periods at a time. After the load has been higher than I INV.
, it must be ensured that for a period the load is lower than I INV. Please note that if the current limit is set at a lower value than I INV. , the acceleration torque will be reduced to the same extent. 160 % 0 - I MAX If the output current exceeds the preset limit I HIGH a warning is given. Parameters 223-228 Warning functions do not work during ramp-up after a start command and after stop command or during stop. The warning functions are I MAX = factory setting, () = display text, [] = value for use in communication via serial communication port MG.29.A3.02 - VLT ® is a registered Danfoss trademark 33 Preset ref., msb Preset ref. lsb 0 0 Preset ref. 1 0 1 Preset ref. 2 1 0 Preset ref.
3 1 1 Preset ref. 4 D escription of choice: 22 3 W arning: Low current, ILOW ( warn. current lo) Va lue: Description of choice: Fu nction: 219 Catch up/Slow down reference (Catch up/Slw dwn) Value: Function: D escription of choice: Description of choice: 221 Current limit, I LIM (current limit) Value: Function: 22 4 W arning: High current, IHIGH ( warn. current hi) Va lue: Fu nction: