Danfoss VLT 2800 Wartungshandbuch Seite 1

ContentsIntroduction to VLT 28004Software version 4High voltage warning 5These rules concern your safety 5Warning against unintended start 5Technolog

3 x 380 - 480 Volt mains voltageTypical shaft outputPINV.Max. constant output current IINV.Max. constant output power at400 V SINV.Type [kW] [HP] [A]

415Maximum feedback, FBMAX(Max. feedback)Value:FBMIN - 100,000.000 1500.000Function:See description of parameter 414 Minimum feedback,FBMIN .Descript

tor speed on the basis of the reference/setpoint andfeedback signal.A transmitter provides the PID regulator with a feed-back signal from the process

iance changes the more powerful the differentiator'sfrequency contribution becomes. The differentiator'sfrequency contribution can therefore

NB!Parameters 417-421 are only used, if inparameter 100 Configuration the selectionmade is Speed regulation, closed loop [1].417 Speed PID proportiona

Description of choice:If a time constant (t) of 100 ms is programmed, the cut-off frequency for the lowpass filter will be 1/0.1 = 10RAD/sec., corresp

Function:See parameter 423 U1 voltage.Description of choice:Set the output voltage (U3) that is to match the thirdoutput frequency (F3), parameter 428

439 Process PID start frequency(PROC START VALUE)Value:fMIN - fMAX (parameter201/202) Par. 201 Output fre-quency, low limit, fMINFunction:When the sta

444 Process PID lowpass filter time(proc filter time)Value:0.02 - 10.00 0.02Function:Noise in the feedback signal is dampened by a firstorder lowpass

452 Controller range(pid contr. range)Value:0 - 200 % 10 %Function:This parameter is only active if in parameter 100 Con-figuration the selection made

Description of choice:If Linear [0] is selected, the feedback signal and thefeedback value will be proportional. If Square root [1]is selected, the fr

Control unitThe frequency converter is always supplied with anintegral control unit.All displays are in the form of a six-digit LED displaycapable of

Enhanced Sleep ModeThe enhanced sleep mode has been developed towork under all conditions and to overcome problemswhen using pumps with flat pump curv

• Dry run protection. Shuts down at no or lowflow and protects the motor and pump fromoverheating.• Improved energy savings with Enhancedsleep mode.•

464 Wakeup Pressure(Wakeup Pressure)Value:Par. 204 RefMIN – par. 215 - 218 Setpoint 0Function:When in Sleep mode the frequency converter will wakeup w

470 Dry Run Time Out(DRY RUN TIME OUT)Value:5-30 sec. 31 = OFFFunction:If the power is below the no/low flow power curve, run-ning at max speed for th

The "Filled" Setpoint - parameter 486- is actually asetpoint limit. When minimum speed is reached, thepressure feedback is looked at, and th

Serial communication for VLT 2800ProtocolsAll frequency converters are equipped with an RS 485port as standard, which makes it possible to choosebetwe

Telegram length (LGE)The telegram length is the number of data bytes plusthe address byte ADR plus the data control byte BCC.The length of telegrams w

Data Character (byte)The structure of data blocks depends on the type oftelegram. There are three types of telegram, and thetype of telegram applies f

Parameter number (PNU)Bits no. 0-10 are used to transfer parameter numbers.The relevant parameter's function is defined in the pa-rameter descrip

The response from the slave to the master will be:Example - Selection of a data value:You wish to select kg/hour [20] in parameter 416 Proc-ess units.

Motor coilsBy fitting the motor coil module between the frequencyconverter and the motor it is possible to use up to 200metres of unscreened/unarmoure

Bit Bit = 0 Bit =100 Preset ref. lsb01 Preset ref. msb02 DC braking 03 Coasting stop 04 Quick stop 05 Freeze outp. freq. 06 Ramp stop Start07

i.e. it is possible to turn off the control word if you donot wish to use it in connection with updating or readingparameters.Bit 11, Relay 01:Bit 11

Bit 06, Trip lock:Bit 06 = '0' means that the frequency converter is nottrip locked.Bit 06 = '1' means that the frequency converte

Bit 03, Coasting stop:See description under Control word according to FCprotocol.Bit 04, Quick stop:See description under Control word according to FC

Bit 06, Start enable/start disable:Bit 06 = '1' after reset of a trip, after activation of OFF2or OFF3 and after connection of mains voltage

Example - Status word and current output frequency:The master receives a status message from the fre-quency converter that the current output frequenc

Serial communication500 Address(BUS ADDRESS)Value:Parameter 500 Protocol = FC protocol [0]0 - 247 1Parameter 500 Protocol = Metasys N2 [1]1 - 255 1Par

503 Quick-stop(Q STOP SELECT)Value:Digital input (DIGITAL INPUT) [0]Serial port (SERIAL PORT) [1]Logic and (LOGIC AND) [2]Logic or (LOGIC OR) [3]Funct

mand when each of the following is selected: Digitalinput [0], Serial port [1], Logic and [2] or Logic or [3].Digital input [0]Dig. inputSer. port Fun

Logic and [2]Bus SetupmsbBus SetuplsbDig. SetupmsbDig. SetuplsbSetup no.0 0 0 0 100 0 1 100 1 0 100 1 1 10 1 0 0 101 0 1 201 1 0 101 1 1 21 0 0 0 110

RFI 1B filterAll frequency converters will cause electromagneticnoise in the mains supply when they are operating. AnRFI (Radio Frequency Interference

514 Bus time interval function(BUS TIMEOUT FUNC)Value:Off (off) [0]Freeze output frequency (FREEZE OUTPUT) [1]Stop (STOP) [2]Jogging (JOGGING) [3]Max.

Description of choice:Resulting reference %, parameter 515:Gives the resulting reference as a percentage in therange from Minimum reference, RefMIN to

560 N2 Override release time(N2 OVER.REL.TIME)Value:1 - 65534 (OFF) sec. OFFFunction:In this parameter, the maximum time is set which isexpected to pa

580-582 Defined parameters(defined pnu's)Value:Read onlyFunction:The three parameters hold a list of all the parametersthat are defined in the VL

Technical functions600-605 Operating DataValue:Par. no. Description Display text Unit Range600 Operating hours (OPERATING HOURS) Hours 0-130,000.0601

617 Fault log: Value(F.LOG: VALUE)Value:[Index 1 - 10] Value: 0 - 9999Function:In this parameter it is possible to see at which value atrip occurred.

Use the following procedure for the control card test:1. Select control card test.2. Disconnect the mains voltage and wait untilthe light in the displ

621-642 NameplateValue:Par.noDescriptionNameplateDisplay text621 Unit type (DRIVE TYPE)624 Software version (SOFTWARE VERSION)625 LCP identification n

678 Configure Control Card(CONFIG CONTROL CARD)Value:Standard version (STANDARD VERSION) [1]Profibus 3 Mbaud Version (PROFIBUS 3 MBVer.) [2]Profibus 1

Special conditionsGalvanic Isolation (PELV)PELV (Protective Extra Low Voltage) insulation is ach-ieved by inserting galvanic isolators between the con

RFI 1B/LC filterThe RFI 1B/LC filter contains both an RFI module thatcomplies with EN 55011-1B and an LC filter that re-duces the acoustic noise.LC fi

The inverter turns off after 5-10 s and the frequencyconverter displays a fault code, although this dependson impedance and motor frequency.Earth faul

Typical values for the rise time and peak voltageUPEAK are measured on the motor terminals betweentwo phases.To obtain approximate values for cable le

Temperature-dependent switch frequencyThis function ensures the highest possible switch fre-quency without the frequency converter becomingthermally o

In both cases, the reduction is carried out linearly,down to 60% of IVLT,N.Vibration and shockThe frequency converter has been tested according toa pr

Efficiency of the system (•SYSTEM)To calculate the system efficiency, the efficiency of thefrequency converters (•INV) should be multiplied by theeffi

Generic EMC standards/product standardsStandard / environment Industrial environment Residential, commercial and light indus-tryEMC Product Standard E

Limits and methods of measurement of radio disturbance characteristics of industrial, scientific and med-ical (ISM) high-frequency equipment.Class 1A:

Basic standard Burst61000-4-4Surge61000-4-5ESD61000-4-2Radiated61000-4-3MainsdistortionVDE 0160RF CMvoltage 261000-4-6AcceptancecriterionB B B A AP

fitting of units is recommended. As a minimum, cabi-nets should be enclosure IP 54.Aggressive gases, such as sulphur, nitrogen andchlorine compounds,

Display readoutFrThe frequency converter shows the present output fre-quency in Hertz [Hz].IoThe frequency converter shows the present outputcurrent i

RFI 1B/LC filterNB!To comply with EN 55011-1B the RFI 1Bfilter module must be fitted to a VLT 2800with integral 1A RFI filter.NB!The 1B/LC filter is n

No. Description Warning Alarm Triplocked2 Live zero error (LIVE ZERO ERROR) X X X4 Mains phase loss (MAINS PHASE LOSS) X X X5 Voltage warning high (DC

overvoltage in the UDC can occur when the motor fre-quency is reduced too quickly due to ramp down timebeing too short. When the inverter is switched

WARNING/ALARM 34: HPFB communication faultCommunication fault only occurs in Fieldbus versions.Regarding alarmtype, please see parameter 953 infieldbu

Warning words, extended status words andAlarmwordsWarning words, status words and Alarm words appearin the display in Hex format. If there are several

General technical dataMains supply (L1, L2, L3):Supply voltage VLT 2803-2840 220-240 V (N, L1) 1 x 220/230/240 V ±10%Supply voltage VLT 2803-2840 200-

Control card, analog inputs:Number of analog voltage inputs 1 pcs.Terminal number 53Voltage level 0 - 10 V DC (scaleable)Input resistance, Riapprox. 1

Control card, analog output:Number of programmable analog outputs 1Terminal number 42Current range at analog output 0/4 - 20 mAMax. load to common at

Cable lengths and cross sections:Max. motor cable length, screened/armoured cable 40 mMax. motor cable length, unscreened/unarmoured cable 75 mMax. mo

Safeguards:• Electronic thermal motor protection againstoverload.• Temperature monitoring of the power moduleensures that the frequency converter cuts

Technical data, mains supply 1 x 220 - 240 V/3 x 200-240VAccording to . internationalstandardsType 2803 2805 2807 2811 2815 2822 2822PD22840 2840PD2Ou

Ordering numbers for VLT 2800 200-240 V0,37 kW VLT 2803 1 x 220-240 V / 3 x 200-240 VRFIUnit ProfibusDP1)3 MBits/sDeviceNet Ordering no.- ST - - 195N0

Technical data, mains supply 3 x 380 - 480 VAccording to international standards Type 2805 2807 2811 2815 2822 2830Output current IINV. [A] 1.7 2.1 3.

Available literatureSupplied with the unitBelow is a list of the literature available for VLT 2800.It must be noted that there may be deviations from

Parameter list with factory settingsPNU # Parameterdescription Factory setting 4-setup Conv.indexDatatype001 Language English No 0 5002 Local/remote o

PNU # Parameter-description Factory setting 4-setup Conv.indexData-type100 Configuration Speed reg., open loop Yes 0 5101 Torque characteristics Const

Factory SettingsPNU # ParameterdescriptionFactory setting Changesduring opera-tion4-setup Conv.indexDatatype200 Output frequency range Clockwise only,

PNU # Parameterdescription Factory setting 4-setup Conv.indexDatatype302 Digital input, term. 18 Start Yes 0 5303 Digital input, term. 19 Reversing Ye

PNU # Parameter description Factory setting 4-setup Conv.indexDatatype400 Brake function Depends on unit type No 0 5405 Reset function Manual reset Ye

PNU # Parameterdescription Factory setting 4-setup Conv.indexDatatype500 Address 1 No 0 5501 Baudrate 9600 Baud No 0 5502 Coasting stop Logic or Yes 0

PNU # Parameterdescription Factory setting 4-setup Conv.indexDatatype600 Operating hours No 73 7601 Hours run No 73 7602 kWh counter No 2 7603 N

Index 44-20 mA reference 58550 Hz counter-clockwise to 50 Hz clockwise 58AAC brake 98Accessories for the VLT 2800 22Acoustic noise 141Active Setup 62

3,7 kW VLT 2840 PD2 1 x 220-240 V / 3 x 200-240 VRFIUnitProfibus DP1)3 MBits/sDeviceNet Ordering no.- ST - - 178F5170- ST✓- 178F5171-ST -✓178F51723,7

HHand Auto 30Hand operation 68Handling of references 81Harmonics 144High voltage test 42High voltage warning 5High voltage warning 42IInitialise 135In

SScreened/armoured cables 42Setup configuration 62Setup copying 63Setup shift 62Short circuit 139Side-by-side 41Slip compensation 77Slow down 85Softwa

4,0 kW VLT 2840 3 x 380-480 VRFIUnitProfibus DP1)3 MBit/sDeviceNet Ordering no.- ST - - 195N1073- SB - - 195N1074R1 ST - - 195N1075R1 SB - - 195N1076-

VLT ® 2800 SeriesMG.27.E3.02 - VLT ® is a registered Danfoss trademark 19Introduction to VLT 2800

Connection examples 57Use of internal PID-controller - closed loop process control 59Programming61Operation & Display 61Setup configuration 62Load

VLT ® 2800 Series20 MG.27.E3.02 - VLT ® is a registered Danfoss trademark

PC Software toolsPC Software - MCT 10All drives are equipped with a serial communicationport. We provide a PC tool for communication betweenPC and fre

Accessories for the VLT 2800Type Description Ordering no.Motor coil The motor coil module can be used for VLT 2803-2875 195N3110RFI 1B filter The RFI

Dynamic brakingWith the VLT 2800 the dynamic braking quality in anapplication can be improved in two ways, either withthe aid of brake resistors or AC

400volt RREC=420139PmotorΩ200volt RREC=105035PmotorΩNB!The brake resistance selected shouldhave an ohmic value no more than 10%lower than that recomme

Continuous brakingFor continuous braking, a brake resistor should be se-lected in which the constant braking power does notexceed the mean power PAVG

Brake cableMax. length [m]: 20 mThe connection cable to the brake resistor must be screened/armoured. Connect the screen to the conductivebackplate at

Brake resistorsFlatpack brake resistors IP 65Type Pmotor[kW]RMIN[]Size [] / [W]per itemDuty cycle % Order no.175Uxxxx2803 (200 V) 0.37 297 330  / 1

Dimensions of Flatpack brake resistors100 W 200 WVLT ® 2800 Series28 MG.27.E3.02 - VLT ® is a registered Danfoss trademark

Control unitOn the front of the frequency converter there is a con-trol panel.The control panel is divided into four function groups:1. Six-digit LED

Display readout 149Warnings/alarm messages 149Warning words, extended status words and Alarmwords 153General technical data 154Technical data, mains s

Display readout statesDisplay modeIn normal operation, one item of operating data can bedisplayed continuously at the operator's own choice.By me

• Reset• Coasting Stop Inverse• Reset and Coasting Stop Inverse• Quick Stop Inverse• Stop Inverse• Reversing• DC Braking Inverse• Setup Select LSB• Se

The LCP 2 Control unit, optionThe frequency converter can be combined with anLCP control unit (Local Control Panel - LCP 2) whichmakes up a complete i

Indicator lampsAt the bottom of the control panel are a red alarm lamp,a yellow warning lamp and a green voltage indicatorlamp.If certain threshold va

Three operating data items can be shown in the firstdisplay line, and one operating variable can be shownin the second display line. Is programmed via

• Using the [QUICK MENU] key, it is possibleto get access to the most important parame-ters of the frequency converter. After pro-gramming, the freque

50.0 HzSETUP1FREQUENCY130 START FREQUENCY09.0 HZThe selected digit can then be changed infinitely vari-ably using the [+ / -] keys:50.0 HzSETUP1FREQUE

Mechanical dimensionsThe drawings below describe the mechanical dimen-sions. All dimensions are in mm.NB!Please note that all filter options must beve

Motor coils (195N3110)RFI 1B filter (195N3103)Terminal coverThe drawing below gives the dimensions for NEMA 1terminal covers for VLT 2803-2875.Dimensi

DimensionsType Code number A B CVLT 2803-2815 200-240 V, VLT 2805-2815 380-480 V 195N2118 47 80 170VLT 2822 200-240 V, VLT 2822-2840 380-480 V 195N211

VLT 2800Design GuideSoftware version: 3.1x This Design Guide can be used for all VLT 2800 Series frequency converters with software version 3.1x.The

192H4893VLT ® 2800 Series40 MG.27.E3.02 - VLT ® is a registered Danfoss trademark

Mechanical installationPlease pay attention to the requirementsthat apply to installation.The frequency converter is cooled by means of air cir-culati

High voltage warningThe voltage of the frequency converter isdangerous whenever the equipment isconnected to mains. Incorrect installationof the motor

control card cannot exceed approx. 100volt with respect to chassis due to a volt-age limiting circuitry.The terminals are protected against directhaza

EMC-correct electrical installationGeneral points to be observed to ensure EMC-correctelectrical installation.-Use only screened/armoured motor cables

Use of EMC compliant cablesIn order to comply with requirements for EMC immun-ity of the control cables and EMC emissions from themotor cables screene

Earthing of screened/armoured control cablesIn general control cables must be screened/armoured,and the screen must be connected to the unit's me

Diagram* Integrated 1A RFI filter and brake is an option.** VLT 2803-2815 200-240 V is not supplied with in-termediate circuit coils.VLT ® 2800 Series

Electrical installationSee also the section Brake Connection.VLT 2803-2815 200-240 V, 2805-2815 380-480 VVLT 2822 200-240 V, 2822-2840 380-480 VVLT ®

VLT 2840 200-240 V, VLT 2822 PD2, 2855-2875380-480 VVLT 2880-2882 380-480 V, VLT 2840 PD2Please note that the units will be supplied with twobottom pl

High voltage warningThe voltage of the frequency converter isdangerous whenever the converter is con-nected to mains. Incorrect fitting of themotor or

Safety clampIf the galvanic isolation (PELV) betweencontrol terminals and high-voltage termi-nals is to be maintained, the accompany-ing safety clamp

Motor connectionConnect the motor to terminals 96, 97, 98. Connectearth to terminal 99.No.96 97 98 Motor voltage 0-100% of mainsvoltage. U V W 3 wi

Parallel connection of motorsThe frequency converter is able to control several mo-tors connected in parallel. If the motors are to havedifferent rpm

Motor thermal protectionThe electronic thermal relay in UL-approved frequencyconverters has received the UL-approval for singlemotor protection, when

Load sharingLoad sharing provides the facility to connect severalfrequency converters' DC intermediate circuits. Thisrequires that the installati

Electrical installation, control cablesControl cables must be screened/armoured. Thescreen must be connected to the frequency converterchassis by mean

Tightening torques, control cablesControl wires must be connected with a tightening tor-que of 0.22-0.25 Nm.Electrical installation, control terminals

Connection examplesStart/stopStart/stop using terminal 18 and coasting stop usingterminal 27.Par. 302 Digital input = Start [7]Par. 304 Digital input

4-20 mA reference4-20 mA reference on terminal 60 and speed feedbacksignal on terminal 53.Par. 100 Configuration = Speed closed loop[1]Par. 308 Analog

Setup 2 contains the following preset references:Par. 215 Preset reference 1 = 40.00%Par. 216 Preset reference 2 = 50.00%Par. 217 Preset reference 3 =

TechnologyControl principleA frequency converter rectifies AC voltage from themains supply into DC voltage, following which itchanges this voltage to

101 = Variable torque medium [3]If used with centrifugal pumps and fans.308 = Feedback [2] (for 0-10 V DC transmit-ters) or314 = Feedback [2] (for 4-

Operation & Display001 Language(language)Value:English (english) [0]German (deutsch) [1]French (francais) [2]Danish (dansk) [3]Spanish (espanol) [

Setup configurationThere is a choice of four Setups (parameter Setups),which can be programmed independently of one an-other. The active Setup can be

006 Setup copying(SETUP COPY)Value:No copying (NO COPY) [0]Copy to Setup 1 from #(COPY TO SETUP 1) [1]Copy to Setup 2 from #(COPY TO SETUP 2) [2]Copy

(Motor voltage [V])DC link voltage [V](DC link voltage [V]) [12]Thermal load motor [%](Motor thermal [%]) [13]Thermal load [%](FC. thermal[%]) [14]Run

Status word [Hex] gives one or several status condi-tions in a Hex code. See Serial communication in theDesign Guide for further information.Heatsink

In order to enable a shift to Local not active [0], param-eter 002 Local/remote operation must be set to Remoteoperation [0].Local control and open lo

016 Local reversing(LOCAL REVERSING)Value:Not active (DISABLE) [0]Active (ENABLE) [1]Function:In this parameter you can select/deselect the reversingf

020 Hand operation(HAND OPERATION)Value:Not active (DISABLE) [0]Active (ENABLE) [1]Function:In this parameter you can select whether it should bepossi

Load and MotorConfigurationSelection of configuration and torque characteristicshas an effect on which parameters can be seen in thedisplay. If Open l

way, the inverter and the condensers in the intermedi-ate circuit are not overloaded, which would dramati-cally reduce the service life of the frequen

Select Special motor mode [8], if a special U/f settingis needed that is to be adapted to the present motor.The break points are set in parameters 423

NB!The max. value equals fM,N x 60. fM,N to beset in parameter 104 Motor frequency,fM,N .107 Automatic motor tuning, AMT(auto motor tun.)Value:Optimi

1. Use the factory settings of RS which the fre-quency converter itself chooses on the basisof the motor nameplate data.2. The value is stated by the

119 High start torque(High start torq.)Value:0.0 - 0.5 sec. 0.0 sec.Function:To ensure a high start torque approx. 1.8 x IINV. can bepermitted for max

122 Function at stop(FUNCTION AT STOP)Value:Coasting (COAST) [0]DC hold (DC HOLD) [1]Function:This is where to choose the function of the frequencycon

128 Thermal motor protection(MOT.THERM PROTEC)Value:No protection (NO PROTECTION) [0]Thermistor warning(THERMISTOR WARN) [1]Thermistor trip (THERMISTO

Function:Initial voltage is active for the time set in parameter 120Start delay , after a start command. This parameter canbe used for example for lif

135 U/f-ratio(U/f RATIO)Value:0.00 - 20.00 at Hz Depends on unitFunction:This parameter enables a shift in the ratio betweenoutput voltage (U) and out

142Leakage reactance XL(LEAK. REACTANCE)Value:0.000 - XXX,XXX  Depends on choice of mo-torXL is sum of rotor and statorleakage reactance.Function:Aft

ample for lifting/lowering operations or synchronousmotors. It is an advantage that the motor and the fre-quency converter are always synchronized.VLT

CE labellingWhat is CE labelling?The purpose of CE labelling is to avoid technical ob-stacles to trade within EFTA and the EU. The EU hasintroduced th

References & Limits200 Output frequency range(OUT FREQ. RNG/ROT)Value:Only clockwise, 0 - 132 Hz(132 Hz CLOCKWISE) [0]Both directions, 0 - 132 Hz(

Handling of referencesHandling of references is described in the block dia-gram below. The block diagram shows how a changein one parameter can affect

203 Reference range(REFERENCE RANGE)Value:Min. reference - Max reference (min - max) [0]-Max. reference - Max. reference(-max - +max) [1]Function:In t

207 Ramp-up time 1(ramp-up time 1)Value:0.02 - 3600.00 sec 3.00 sec (VLT 2803-2875)10.00 sec (VLT 2880-2882)Function:The ramp-up time is the accelerat

The jog ramp time starts if a jog-signal is given via theLCP control panel, one of the digital inputs or the serialcommunication port.Description of c

214 Reference function(Ref function)Value:Sum (sum) [0]Relative (relative) [1]External/preset (external/preset) [2]Function:It is possible to define h

short periods at a time. After the load has been higherthan IINV., it must be ensured that for a period the loadis lower than IINV. Please note that i

resulting reference. The signal outputs can be pro-grammed to give a warning signal via terminal 46 andvia the relay output.Description of choice:The

Inputs and outputsDigital inputs Term. no.18119127 29 33par. no. 302 303 304 305 307Value:No function (NO OPERATION) [0] [0] [0] [0] [0]Reset (RESET)

transistors are "turned off"), which means that the mo-tor runs freely to stop. Logic '0' leads to coasting tostop.Reset and coast

Order formThis section makes it easier for you to specify andorder a VLT 2800.Choice of frequency converterThe frequency converter must be chosen on t

Term.29Term.33Freeze ref/freeze outp.Function0 0 1 No speed change01 1 Speed up10 1 Speed down11 1 Speed downFreeze reference can be changed even if t

frequency converter to reset and the motor will rampup to the preset reference.Pulse counter start is used to start a counter stop se-quence with a pu

signal. If reference signals are connected to more thanone input, these reference signals must be added up.If one current feedback signal is connected

319 Analogue output terminal 42(AO 42 FUNCTION)Value:No function (NO OPERATION) [0]External reference min.-max. 0-20 mA(ref min-max = 0-20 mA) [1]Exte

Output current lower than IHIGH par. 224(below current high) [14]Feedback higher than FBLOW par. 227(above feedback low) [15]Feedback lower than FBHIG

Control word bit 11, is active if bit 11 is high on the BusCommunication.Sleep Mode, is active of the frequency is lower than 0.1Hz.327 Pulse referenc

Is active if the frequency is lower than 0.1 Hz.342 Terminal 46, max. pulse scaling(DO 46 MAX. PULS)Value:150 - 10000 Hz 5000 HzFunction:This paramete

NB!Only active for speed-compensated stop.VLT ® 2800 SeriesMG.27.E3.02 - VLT ® is a registered Danfoss trademark 97Programming

Special functions400 Brake function(Brake function)Value:Off (off) [0]Resistor brake(Resistor) [1]AC brake (AC Brake) [4]Load sharing (load sharing) [

Description of choice:Select how long the frequency converter should main-tain the output current at the current limit ILIM before itdisconnects. At O