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MAKING MODERN LIVING POSSIBLE

Output Filters Design GuideVLT® AutomationDrive FC 300

VLT® AQUA Drive FC 200VLT® HVAC Drive FC 100

Contents

1 How to Read this Design Guide 3

1.1.2 Abbreviations 3

2 Safety and Conformity 4

2.1 Safety Precautions 4

2.1.1 CE Conformity and Labelling 4

3 Introduction to Output Filters 5

3.1 Why use Output Filters 5

3.2 Protection of Motor Insulation 5

3.2.1 The Output Voltage 5

3.3 Reduction of Motor Acoustic Noise 7

3.4 Reduction of High Frequency Electromagnetic Noise in the Motor Cable 7

3.5 What are Bearing Currents and Shaft Voltages? 8

3.5.1 Mitigation of Premature Bearing Wear-Out 8

3.5.2 Measuring Electric Discharges in the Motor Bearings 9

3.6 Which Filter for which Purpose 10

3.6.1 du/dt Filters 10

3.6.2 Sine-wave Filters 12

3.6.3 High-Frequency Common-Mode Core Kits 14

4 Selection of Output Filters 15

4.1 How to Select the Correct Output Filter 15

4.1.1 Product Overview 15

4.1.2 HF-CM Selection 17

4.2 Electrical Data - du/dt Filters 18

4.3 Electrical Data - Sine-wave Filters 20

4.4 Sine-Wave Filters 25

4.4.1 du/dt Filters 26

4.4.2 Sine-Wave Foot Print Filter 27

5 How to Install 28

5.1 Mechanical Mounting 28

5.1.1 Safety Requirements for Mechanical Installation 28

5.1.2 Mounting 28

5.1.3 Earthing 29

5.1.4 Screening 29

5.2 Mechanical Dimensions 30

5.2.1 Sketches 30

6 How to Programme the Frequency Converter 38

Contents Output Filters Design Guide

MG.90.N4.02 - VLT® is a registered Danfoss trademark 1

6.1.1 Parameter Settings for Operation with Sine-wave Filter 38

Index 39

Contents Output Filters Design Guide

2 MG.90.N4.02 - VLT® is a registered Danfoss trademark

1 How to Read this Design Guide

This Design Guide will introduce all aspects of output filtersfor your VLT® FC Series Drive; From choosing the rightoutput filter for the application to instructions about how toinstall it and how to program the Frequency Converter.

Danfoss technical literature is also available online atwww.danfoss.com/BusinessAreas/DrivesSolutions/Documentations/Technical+Documentation.

1.1.1 Symbols

Symbols used in this manual:

NOTEIndicates something to be noted by the reader.

CAUTIONIndicates a general warning.

WARNINGIndicates a high-voltage warning.

✮ Indicates default setting

1.1.2 Abbreviations

Alternating current AC

American wire gauge AWG

Ampere/AMP A

Automatic Motor Adaptation AMA

Current limit ILIM

Degrees Celsius °C

Direct current DC

Drive Dependent D-TYPE

Electro Magnetic Compatibility EMC

Electronic Thermal Relay ETR

Drive FC

Gram g

Hertz Hz

Kilohertz kHz

Local Control Panel LCP

Meter m

Millihenry Inductance mH

Milliampere mA

Millisecond ms

Minute min

Motion Control Tool MCT

Nanofarad nF

Newton Meters Nm

Nominal motor current IM,N

Nominal motor frequency fM,N

Nominal motor power PM,N

Nominal motor voltage UM,N

Parameter par.

Protective Extra Low Voltage PELV

Rated Inverter Output Current IINV

Revolutions Per Minute RPM

Second s

Synchronous Motor Speed ns

Torque limit TLIM

Volts V

IVLT,MAX The maximum output current.

IVLT,N The rated output currentsupplied by the frequencyconverter.

How to Read this Design Gui... Output Filters Design Guide


1 1

2 Safety and Conformity

2.1 Safety Precautions

Equipment containing electrical componentsmay not be disposed of together with domesticwaste.It must be separately collected with electricaland electronic waste according to local andcurrently valid legislation.

MCC 101/102Design Guide

2.1.1 CE Conformity and Labelling

What is CE Conformity and Labelling?The purpose of CE labelling is to avoid technical tradeobstacles within EFTA and the EU. The EU has introduced theCE label as a simple way of showing whether a productcomplies with the relevant EU directives. The CE label saysnothing about the specifications or quality of the product.The low-voltage directive (73/23/EEC)Frequency converters must be CE labelled in accordancewith the low-voltage directive of January 1, 1997. Thedirective applies to all electrical equipment and appliancesused in the 50 - 1000 V AC and the 75 - 1500 V DC voltageranges. Danfoss CE-labels in accordance with the directiveand issues a declaration of conformity upon request.

Warnings

CAUTIONWhen in use the filter surface temperature rises. DO NOTtouch the filter during operation.

WARNINGNever work on a filter in operation. Touching the electricalparts may be fatal - even after the equipment has beendisconnected from the drive or motor.

CAUTIONBefore servicing the filter, wait at least the voltage dischargetime stated in the Design Guide for the corresponding VLT®

to avoid electrical shock hazard.

NOTENever attempt to repair a defect filter.

NOTEThe filters presented in this design guide are speciallydesigned and tested for Danfoss Drives frequency converters(FC 102/202/301 and 302). Danfoss takes no resposibility forthe use of third party output filters.

NOTEThe phased out LC-filters that were developed for theVLT5000 series and are not compatible with the VLT FC-series frequency converters.However, the new filters are compatible with both FC-seriesand VLT 5000-series

NOTE690V applications:For motors not specially designed for frequency converteroperation or without double insulation, Danfoss highlyrecommend the use of either du/dt or Sine-Wave filters.

NOTESine-wave filters can be used at switching frequencies higherthan the nominal switching frequency, but should never beused at switching frequencies with less than 20% lower thanthe nominal switching frequency.

NOTEdu/dt filters, unlike Sine-wave filters, can be used at lowerswitching frequency than the nominal switching frequency,but higher switching frequency will cause the overheating ofthe filter and should be avoided.

Safety and Conformity Output Filters Design Guide


22

3 Introduction to Output Filters

3.1 Why use Output Filters

This chapter describes why and when to use Output Filterswith Danfoss Drives frequency converters. It is divided intothree sections:

• Protection of Motor Insulation

• Reduction of Motor Acoustic Noise

• Reduction of High Frequency ElectromagneticNoise in Motor Cable

3.2 Protection of Motor Insulation

3.2.1 The Output Voltage

The output voltage of the frequency converter is a series oftrapezoidal pulses with a variable width (pulse widthmodulation) characterized by a pulse rise-time tr.

When a transistor in the inverter switches, the voltage acrossthe motor terminal increases by a du/dt ratio that dependson:

• the motor cable (type, cross-section, length,screened or unscreened, inductance andcapacitance)

• the high frequency surge impendance of the motor

Because of the impedance mismatch between the cablecharacteristic impedance and the motor surge impedance awave reflection occurs, causing a ringing voltage overshootat the motor terminals - see following illustration. The motorsurge impedance decreases with the increase of motor sizeresulting in reduced mismatch with the cable impedance.The lower reflection coefficient (Γ) reduces the wavereflection and thereby the voltage overshoot.In the case of parallel cables the cable characteristicimpedance is reduced, resulting in a higher reflectioncoefficient higher overshoot. For more information pleasesee IEC61800-8.

Illustration 3.1 Example of converter output voltage (dotted line) and motor terminal voltage after 200 meters of cable (solid line).

Introduction to Output Filt... Output Filters Design Guide


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Typical values for the rise time and peak voltage UPEAK aremeasured on the motor terminals between two phases.

Two different definitions for the risetime tr are used inpractice. The international IEC standards define the rise-timeas the time between 10 % to 90 % of the peak voltage Upeak.The US National Electrical Manufacturers Association (NEMA)defines the rise-time as the time between 10 % and 90 % ofthe final, settled voltage, that is equal to the DC link voltageUDC. See following illustrations.

To obtain approximate values for cable lengths and voltagesnot mentioned below, use the following rules of thumb:

1. Rise time increases with cable length.

2. UPEAK = DC link voltage x (1+Γ); Γ represents thereflection coefficient and typical values can befound in table below(DC link voltage = Mains voltage x 1.35).

3. du/dt = 0.8 × UPEAK

tr (IEC)

du/dt = 0.8 × UDCtr(NEMA ) (NEMA)

(For du/dt, rise time, Upeak values at different cable lengthsplease consult the drive Design Guide)

Motor power [kW] Zm [Ω] Γ<3.7 2000 - 5000 0.95

90 800 0.82

355 400 0.6

Table 3.1 Typical values for reflection coefficients (IEC61800-8).

The IEC and NEMA definitions of risetime tr

Illustration 3.2 IEC

Illustration 3.3 NEMA

Various standards and technical specifications present limitsof the admissible Upeak and tr for different motor types. Someof the most used limit lines are shown in the figure below:

• IEC60034-17 – limit line for general purpose motorswhen fed by frequency converters, 500V motors.

• IEC60034-25 – limit for converter rated motors:curve A is for 500V motors and curve B is for 690Vmotors.

• NEMA MG1 – Definite purpose Inverter Fed Motors.

If, in your application, the resulting Upeak and tr exceed thelimits that apply for the motor used, an output filter shouldbe used for protecting the motor insulation.

Illustration 3.4 Limit lines for Upeak and risetime tr.



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3.3 Reduction of Motor Acoustic Noise

The acoustic noise generated by motors has three mainsources:

1. The magnetic noise produced by the motor core,through magnetostriction

2. The noise produced by the motor bearings

3. The noise produced by the motor ventilation

When a motor is fed by a frequency converter, thepulsewidth modulated (PWM) voltage applied to the motorcauses additional magnetic noise at the switching frequencyand harmonics of the switching frequency (mainly thedouble of the switching frequency). In some applications thisis not acceptable. In order to eliminate this additionalswitching noise, a sine-wave filter should be used. This willfilter the pulse shaped voltage from the frequency converterand provide a sinusoidal phase-to-phase voltage at themotor terminals.

3.4 Reduction of High FrequencyElectromagnetic Noise in the MotorCable

When no filters are used, the ringing voltage overshoot thatoccurs at the motor terminals is the main high-frequencynoise source. This can be seen in the figure below that showsthe correlation between the frequency of the voltage ringingat the motor terminals and the spectrum of the high-frequency conducted interference in the motor cable.Besides this noise component, there are also other noisecomponents such as:

• The common-mode voltage between phases andground (at the switching frequency and itsharmonics) - high amplitude but low frequency.

• High-frequency noise (above 10MHz) caused bythe switching of semiconductors - high frequencybut low amplitude.

Illustration 3.5 Correlation between the frequency of the ringing voltage overshoot and the spectrum of noise emissions.



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When an output filter is installed following effect is achieved:

• In the case of du/dt filters the frequency of theringing oscillation is reduced below 150kHz.

• In the case of sine-wave filters the ringingoscillation is completely eliminated and the motoris fed by a sinusoidal phase-to-phase voltage.

Remember, that the other two noise components are stillpresent. The use of unshielded motor cables is possible, butthe layout of the installation should prevent noise couplingbetween the unshielded motor cable and the mains line orother sensitive cables (sensors, communication, etc.). Thiscan be achieved by cable segregation and placement of themotor cable in a separate, continuous and grounded cabletray.

3.5 What are Bearing Currents and ShaftVoltages?

Fast switching transistors in the frequency convertercombined with an inherent common-mode voltage (voltagebetween phases and ground) generate high-frequencybearing currents and shaft voltages. While bearing currentsand shaft voltages can also occur in direct-on-line motors,these phenomena are accentuated when the motor is fedfrom a frequency converter. The majority of bearingdamages in motors fed by frequency converters are becauseof vibrations, misalignment, excessive axial or radial loading,improper lubrication, impurities in the grease. In some cases,bearing damages are caused by bearing currents and shaftvoltages. The mechanism that causes bearing currents andshaft voltages is quite intricate and beyond the scope of thisDesign Guide. Basically, two main mechanisms can beidentified:

• Capacitive coupling: the voltage across the bearingis generated by parasitic capacitances in the motor.

• Inductive coupling: caused by circulating currentsin the motor.

The grease film of a running bearing behaves like isolation.The voltage across the bearing can cause a breakdown of thegrease film and produce a small electric discharge (a spark)between the bearing balls and the running track. Thisdischarge produces a microscopic melting of the bearing balland running track metal and in time it causes the prematurewear-out of the bearing. This mechanism is called ElectricalDischarge Machining or EDM.

3.5.1 Mitigation of Premature Bearing Wear-Out

There are a number of measures that can be taken forpreventing premature wearing and damage of the bearings(not all of them are applicable in all cases – combinationscan be used). These measures aim either to provide a low-impedance return path to the high-frequency currents or toelectrically isolate the motor shaft for preventing currentsthrough the bearings. Besides, there are also mechanicalrelated measures.

Measures to provide a low-impedance return path

• Follow EMC installation rules strictly. A good high-frequency return path should be provided betweenmotor and frequency converter, for example byusing shielded cables.

• Make sure that the motor is properly grounded andthe grounding has a low-impedance for high-frequency currents.

• Provide a good high-frequency ground connectionbetween motor chassis and load.

• Use shaft grounding brushes.

Measures that isolated the motor shaft from the load

• Use isolated bearings (or at least one isolatedbearing at the non-driving end NDE).

• Prevent shaft ground current by using isolatedcouplings.

Mechanical measures

• Make sure that the motor and load are properlyaligned.

• Make sure the loading of the bearing (axial andradial) is within the specifications.

• Check the vibration level in the bearing.

• Check the grease in the bearing and make sure thebearing is correctly lubricated for the givenoperating conditions.

One of the mitigation measures is to use filters. This can beused in combination with other measures, such as thosepresented above. High-frequency common-mode (HF-CM)filters (core kits) are specially designed for reducing bearingstress. Sine-wave filters also have a good effect. dU/dt filtershave less effect and it is recommended to use them incombination with HF-CM cores.



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3.5.2 Measuring Electric Discharges in theMotor Bearings

The occurrence of electric discharges in the motor bearingscan be measured using an oscilloscope and a brush to pickup the shaft voltage. This method is difficult and theinterpretation of the measured waveforms requires a deepunderstanding of the bearing current phenomena. An easyalternative is to use an electrical discharge detector(130B8000). Such a device consists of a loop antenna thatreceives signals in the frequency range of 50MHz – 200MHzand a counter. Each electric discharge produces an electro-magnetic wave that is detected by the instrument and thecounter is incremented. If the counter displays a highnumber of discharges it means that there are manydischarges occurring in the bearing and mitigation measureshave to be taken to prevent the early wear out of thebearing. This instrument can be used for experimentallydetermining the exact number of cores needed to reducebearing currents. Start with a set of 2 cores. If the dischargesare not eliminated, or drastically reduced, add more cores.

The number of cores presented in the table above is aguiding value that should cover most applications with agenerous safety margin. If the cores are installed on the driveterminals and you experiment core saturation because oflong motor cables (the cores have no effect on bearingcurrents), check the correctness of the installation. If coreskeep saturating after the installation is made according toEMC best practice, consider moving the cores to the motorterminals.

129

50 - 200 MHz

130B

B729

.10

Lev

el i

n d

Bµ

V

Frequency in Hz1

30

BT

11

9.1

0

Illustration 3.6 Mains line conducted noise, no filter.

Illustration 3.7 Mains line conducted noise, sine-wave filter.



3 3

3.6 Which Filter for which Purpose

The table below shows a comparison of du/dt and Sine-wave filter performance. It can be used to determine which filter to usewith your application.

Performance criteria du/dt filters Sine-wave filters High-frequency common-mode filters

Motor insulationstress

Up to 150 m cable (screened/unscreened) complies with therequirements of IEC60034-17(general purpose motors). Abovethis cable length the risk of “doublepulsing” (two time mains networkvoltage) increases.

Provides a sinusoidal phase-to-phasemotor terminal voltage. Complies withIEC-60034-17* and NEMA-MG1requirements for general purposemotors with cables up to 500m (1km forVLT frame size D and above).

Does not reduce motor insulation stress

Motor bearing stress Slightly reduced, only in high-power motors.

Reduces bearing currents caused bycirculating currents. Does not reducecommon-mode currents (shaftcurrents).

Reduces bearing stress by limitingcommon-mode high-frequencycurrents

EMC performance Eliminates motor cable ringing.Does not change the emission class.Does not allow longer motor cablesas specified for the frequencyconverter’s built-in RFI filter.

Eliminates motor cable ringing. Doesnot change the emission class. Does notallow longer motor cables as specifiedfor the frequency converter’s built-inRFI filter.

Reduces high-frequency emissions(above 1 MHz). Does not change theemission class of the RFI filter. Does notallow longer motor cables as specifiedfor the frequency converter.

Max. motor cablelength

100m ... 150 mWith guaranteed EMC performance:150m screened.Without guaranteed EMCperformance: 150m unscreened.

With guaranteed EMC performance:150m screened and 300m unscreened.Without guaranteed EMC performance:up to 500m (1km for VLT frame size Dand above)

150 m screened (frame size A, B, C), 300m screened (frame size D, E, F), 300 munscreened

Acoustic motorswitching noise

Does not eliminate acousticswitching noise.

Eliminates acoustic switching noisefrom the motor caused by magneto-striction.

Does not eliminate acoustic switchingnoise.

Relative size 15-50% (depending on power size). 100% 5 - 15%

Voltage drop** 0.5% 4-10% none

Table 3.2 Comparison of du/dt and sine-wave filters.

*) Not 690V.**) See general specification for formula.

3.6.1 du/dt Filters

The du/dt filters consist of inductors and capacitors in a lowpass filter arrangement and their cut off frequency is abovethe nominal switching frequency of the drive. Theinductance (L) and capacitance (C) values are shown in thetables in the section Electrical Data - du/dt Filters in thechapter Selection of Output Filters. Compared to Sine-wavefilters they have lower L and C values, thus they are cheaperand smaller. With a du/dt filter the voltage wave form is stillpulse shaped but the current is sinusoidal - see followingillustrations.

Features and benefitsdu/dt filters reduce the voltage peaks and du/dt of thepulses at the motor terminals. The du/dt filters reduce du/dtto approx. 500V/μs.

Advantages:

• Protects the motor against high du/dt values andvoltage peaks, hence prolongs the lifetime of themotor

• Allows the use of motors which are not specificallydesigned for converter operation, for example inretrofit applications



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Application areas:Danfoss recommends the use of du/dt filters in the followingapplications:

• Applications with frequent regenerative braking

• Motors that are not rated for frequency converteroperation and not complying with IEC600034-25

• Motors placed in aggressive environments orrunning at high temperatures

• Applications with risk of flash over

• Installations using old motors (retrofit) or generalpurpose motors not complying with IEC 600034-25

• Applications with short motor cables (less than 15meters)

• 690 V applications

Voltage and current with and without du/dt filter:

Illustration 3.8 Without filter

Illustration 3.9 With du/dt filter

13

0B

B11

3.1

1

Up

ea

k [

kV

]

15m dv/dt filter

rise time [µs]

150m dv/dt filter

50m dv/dt filter

Illustration 3.10 Measured du/dt values (rise time and peakvoltages) with and without du/dt filter using 15m, 50m and 150mcable lengths on a 400V, 37kW induction motor.

The du/dt value decreases with the motor cable lengthwhereas the peak voltage increases (see illustration above).The Upeak value depends on the Udc from the drive and asUdc increases during motor braking (generative) Upeak canincrease to values above the limits of IEC60034-17 andthereby stress the motor insulation. Danfoss thereforerecommends du/dt filters in applications with frequentbraking. Furthermore the illustration above shows how theUpeak increases with the cable length. As the cable lengthincreases, the cable capacitance rises and the cable behaveslike a low-pass filter. That means longer rise-time tr for longercables. Therefore it is recommended to use du/dt filters onlyin applications with cable lengths up to 150 meters. Above150m du/dt filters have no effect. If further reduction isneeded, use a sine-wave filter.



3 3

Filter features:

• IP00 and IP20 enclosure in the entire power range

• Side by side mounting with the drive

• Reduced size, weight and price compared to thesine-wave filters

• Possibility of connecting screened cables withincluded decoupling plate

• Compatible with all control principles includingflux and VVC+

• Filters wall mounted up to 177A and floor mountedabove that size

Illustration 3.11 525V - with and without du/dt filter

Illustration 3.12 690V - with and du/dt filter

Source: Test of 690V 30kW VLT FC 302 with MCC 102 du/dtfilter

The illustrations above show how Upeak and rise timebehaves as a function of the motor cable length. In instal-lations with short motor cables (below 5-10m) the rise time isshort which causes high du/dt values. The high du/dt cancause a damaging high potential difference between thewindings in the motor which can lead to breakdown of the

insulation and flash-over. Danfoss therefore recommendsdu/dt filters in applications with motor cable lengths shorterthan 15m.

3.6.2 Sine-wave Filters

Sine-wave filters (are designed to) let only low frequenciespass. High frequencies are consequently shunted awaywhich results in a sinusoidal phase to phase voltagewaveform and sinusoidal current waveforms. With thesinusoidal waveforms the use of special frequency convertermotors with reinforced insulation is no longer needed. Theacoustic noise from the motor is also damped as aconsequence of the sinusoidal wave condition. The sine-wave filter also reduces insulation stress and bearingcurrents in the motor, thus leading to prolonged motorlifetime and longer periods between services. Sine-wavefilters enable use of longer motor cables in applicationswhere the motor is installed far from the drive. As the filterdoes not act between motor phases and ground, it does notreduce leakage currents in the cables. Therefore the motorcable length is limited - see table Comparison of du/dt andsine-wave filters in section Which Filters for which Purpose

The Danfoss Drives Sine-wave filters are designed to operatewith the VLT® FC Series Drives. They replace the LC-filterproduct range and are backwards compatible with the VLT5000-8000 Series Drives. They consist of inductors andcapacitors in a low-pass filter arrangement. The inductance(L) and capacitance (C) values are shown in tables in thesection Electrical Data - Sine -wave Filters in the chapterSelection of Output Filters.

Features and benefitsAs described above, Sine-wave filters reduce motorinsulation stress and eliminate switching acoustic noise fromthe motor. The motor losses are reduced because the motoris fed with a sinusoidal voltage, as shown in illustration 525V- with du/dt filter. Moreover, the filter eliminates the pulsereflections in the motor cable thus reducing the losses in thefrequency converter.

Advantages:

• Protects the motor against voltage peaks henceprolongs the lifetime

• Reduces the losses in the motor

• Eliminates acoustic switching noise from the motor

• Reduces semiconductor losses in the drive withlong motor cables

• Decreases electromagnetic emissions from motorcables by eliminating high frequency ringing in thecable



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• Reduces electromagnetic interference fromunscreened motor cables

• Reduces the bearing current thus prolonging thelifetime of the motor

Voltage and current with and without Sine-wave filter:

Illustration 3.13 Without filter

Illustration 3.14 With sine-wave filter

Application areas:Danfoss recommends the use of Sine-wave filters in thefollowing applications:

• Applications where the acoustic switching noisefrom the motor has to be eliminated

• Retrofit installations with old motors with poorinsulation

• Applications with frequent regenerative brakingand motors that do not comply with IEC60034-17

• Applications where the motor is placed inaggressive environments or running at hightemperatures

• Applications with motor cables above 150m up to300m (with both screened and unscreened cable).The use of motor cables longer than 300mdepends on the specific application

• Applications where the service interval on themotor has to be increased

• 690V applications with general purpose motors

• Step up applications or other applications wherethe frequency converter feeds a transformer

Example of relative motor sound pressure levelmeasurements with and without Sine-wave filter



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Features:

• IP00 and IP20 enclosure in the entire power range(IP23 for floor standing filters)

• Compatible with all control principle including fluxand WC+

• Side by side mount with drive up to 75A

• Filter enclosure matching the drive enclosure

• Possibility of connection unscreened and screenedcables with included decoupling plate

• Filters wall mounted up to 75A and floor mountabove

• Parallel filter installation is possible withapplications in the high power range

3.6.3 High-Frequency Common-Mode CoreKits

High-frequency common-mode (HF-CM) core kits are one ofthe mitigation measures to reduce bearing wear. However,they should not be used as the sole mitigation measure.Even when HF-CM cores are used, the EMC-correct instal-lation rules must be followed. The HF-CM cores work byreducing the high-frequency common-mode currents thatare associated with the electric discharges in the bearing.They also reduce the high-frequency emissions from themotor cable which can be used, for example, in applicationswith unshielded motor cables.



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4 Selection of Output Filters

4.1 How to Select the Correct Output Filter

An output filter is selected based on the nominal motor current. All filters are rated for 160% overload for 1 minute, every 10minutes.

4.1.1 Product Overview

To simplify the Filter Selection Table below shows which Sine-wave filter to use with a specific drive. This is based on the 160%overload for 1 minute every 10 minutes and is to be considered guideline.

Mains supply 3 x 240 to 500V

Rated filtercurrent at 50 Hz

Minimumswitching

frequency [kHz]

Maximum outputfrequency [Hz] With

derating

Code numberIP20

Code numberIP00

Frequency converter size

200-240 V 380-440 V 441-500 V

2.5 5 120 130B2439 130B2404 PK25 - PK37 PK37 - PK75 PK37 - PK75

4.5 5 120 130B2441 130B2406 PK55 P1K1 - P1K5 P1K1 - P1K5

8 5 120 130B2443 130B2408 PK75 - P1K5 P2K2 - P3K0 P2K2 - P3K0

10 5 120 130B2444 130B2409 P4K0 P4K0

17 5 120 130B2446 130B2411 P2K2 - P4K0 P5K5 - P7K5 P5K5 - P7K5

24 4 100 130B2447 130B2412 P5K5 P11K P11K

38 4 100 130B2448 130B2413 P7K5 P15K - P18K P15K - P18K

48 4 100 130B2307 130B2281 P11K P22K P22K

62 3 100 130B2308 130B2282 P15K P30K P30K

75 3 100 130B2309 130B2283 P18K P37K P37K

115 3 100 130B2310 130B2284 P22K - P30K P45K - P55K P55K - P75K

180 3 100 130B2311 130B2285 P37K - P45K P75K - P90K P90K - P110

260 3 100 130B2312 130B2286 P110 - P132 P132

410 3 100 130B2313 130B2287 P160 - P200 P160 - P200

480 3 100 130B2314 130B2288 P250 P250

660 2 70 130B2315 130B2289 P315 - P355 P315 - P355

750 2 70 130B2316 130B2290 P400 P400 - P450

880 2 70 130B2317 130B2291 P450 - P500 P500 - P560

1200 2 70 130B2318 130B2292 P560 - P630 P630 - P710

1500 2 70 2X 130B2317 2X 130B2291 P710 - P800 P800

Table 4.1 Filter Selection

Selection of Output Filters Output Filters Design Guide


4 4

Mains supply 3 x 525 to 600/ 690V

Rated filtercurrent at 50 Hz

Minimumswitching

frequency [kHz]

Maximum outputfrequency [Hz] With

derating

Code numberIP20

Code numberIP00

Frequency converter size

525-600 V 525-690 V

13 2 70 130B2341 130B2321 PK75 - P7K5

28 2 100 130B2342 130B2322 P11K - P18K

45 2 100 130B2343 130B2323 P22K - P30K P37K

76 2 100 130B2344 130B2324 P37K - P45K P45K - P55K

115 2 100 130B2345 130B2325 P55K - P75K P75K - P90K

165 2 70 130B2346 130B2326 P110 - P132

260 2 100 130B2347 130B2327 P160 - P200

303 2 70 130B2348 130B2329 P250

430 1.5 60 130B2370 130B2341 P315 - P400

530 1.5 100 130B2371 130B2342 P500

660 1.5 100 130B2381 130B2337 P560 - P630

765 1.5 60 130B2382 130B2338 P710

940 1.5 100 130B2383 130B2339 P800 - P900

1320 1.5 60 130B2384 130B2340 P1M0

Table 4.2 Filter Selection

Generally the output filters are designed for the nominalswitching frequency of the VLT FC-Series drives.





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4.1.2 HF-CM Selection

The cores can be installed at the frequency converter’soutput terminals (U, V, W) or in the motor terminal box.

When installed at the frequency converter’s terminals theHF-CM kit reduces both bearing stress and high-frequencyelectromagnetic interference from the motor cable. Thenumber of cores depends on the motor cable length andfrequency converter voltage and a selection table is shownbelow:

Cablelength[m]

A- and B-frame

C-frame D-frame E-frame + F

T5 T7 T5 T7 T5 T7 T5 T7

50 2 4 2 2 2 4 2 2

100 4 4 2 4 4 4 2 4

150 4 6 4 4 4 4 4 4

300 4 6 4 4 4 6 4 4

When installed in the motor terminal box the HF-CM kitreduces only bearing stress and has no effect on the electro-magnetic interference from the motor cable. Two cores issufficient in most cases, independent of the motor cablelength.

Danfoss provides the HF-CM cores in kits of two pieces/kit.The cores are oval shaped for the ease of installation and areavailable in four sizes: for A and B frames, for C frames, for Dframes, for E and F-frames. For F-frame drives one core kitshall be installed at each inverter module terminals.Mechanical mounting can be made with cable ties. There areno special requirements regarding mechanical mounting.

W

w

H hd

130B

B728

.10

In normal operation the temperature is below 70°C.However, if the cores are saturated they can get hot, withtemperatures above 70°C. Therefore it is important to usethe correct number of cores to avoid saturation. Saturationcan occur if the motor cable is too long, motor cables areparalleled or high capacitance motor cables, not suitable forfrequency converter operation, are used. Always avoid motorcables with sector-shaped cores. Use only cables with round-shaped cores.

CAUTIONCheck the core temperature during commissioning. Atemperature above 70°C indicates saturation of the cores. Ifthis happens add more cores. If the cores still saturate itmeans that the cable capacitance is too large because of: toolong cable, too many parallel cables, cable type with highcapacitance.

Applications with parallel cablesWhen parallel cables are used the total cable length has tobe considered. For example 2 x 100m cables are equivalentwith one 200 m cable. If many paralleled motors are used aseparate core kit should be installed for each individualmotor.

The ordering numbers for the core kits (2 cores/package) aregiven in the following table.

VLTframesize

Danfosspart no.

Core dimension [mm] Weight Packagingdimension

W w H h d [kg] [mm]

A and B 130B3257 60 43 40 25 22 0.25 130x100x70

C 130B3258 102 69 61 28 37 1.6 190x100x70

D 130B3259 189 143 126 80 37 2.45 235x190x140

E and F 130B3260 305 249 147 95 37 4.55 290x260x110



4 4

4.2 Electrical Data - du/dt Filters

du/dt Filter 3x380-500V IP00

Code

num

ber

IP00

/IP20

(IP23

)1)Fi

lter

curr

ent

ratin

g a

t gi

ven

vol

tage

and

mot

or fr

eque

ncy

[A]2)

VLT

pow

er a

nd c

urre

nt ra

ting

Max

imum

filte

r lo

sses

Filte

r da

ta

38

0V @

60H

zan

d 4

00/4

40V

@ 5

0Hz

460/

480V

@60

Hz

and

500/

525V

@50

Hz3)

575/

600V

@ 6

0Hz

690V

@ 5

0Hz

380

- 44

0V44

1 - 5

00V

525

- 55

0V55

1 -

690V

L

CkW

AkW

AkW

AkW

AW

uHnF

130B

2835

130B

2836

4440

3227

1124

1121

7.5

1411

1337

150

1015

3215

2711

1915

1818

.537

.518

.534

1523

18.5

2222

4422

4018

.528

2227

130B

2838

130B

2839

9080

5854

3061

3052

3043

3034

130

110

13.6

3773

3765

3754

3741

4590

5580

4565

4552

130B

2841

130B

2842

106

105

9486

5510

675

105

5587

5562

145

9515

7583

130B

2844

130B

2845

177

160

131

108

7514

790

130

7511

390

108

205

111

1590

177

110

160

9013

7

130B

2847

130B

2848

315

303

242

192

110

212

132

190

110

162

110

131

315

5020

132

260

160

240

132

201

132

155

160

315

200

303

160

192

1302

849

130B

3850

480

443

344

290

200

395

250

361

160

253

200

242

398

3043

250

480

315

443

200

303

250

290

130B

2851

1302

852

658

590

500

450

315

600

355

540

250

360

315

344

550

1766

355

658

400

590

300

395

355

380

315

429

400

410

130B

2853

130B

2854

880

780

630

630

400

745

450

678

400

523

500

500

850

1399

450

800

500

730

450

596

560

570

500

880

560

780

500

659

630

630

1) T

he fi

lter

encl

osur

e is

IP20

for

wal

l-mou

nted

filte

rs a

nd IP

23 fo

r flo

or-m

ount

ed fi

lters

2) F

or d

erat

ing

with

mot

or fr

eque

ncy

cons

ider

60

Hz

ratin

g=0.

94 x

50H

z ra

ting

and

100

Hz

ratin

g= 0

.75

x 50

Hz

ratin

g3)

525

V o

pera

tion

requ

ires

a T7

driv

e



44

Code

num

ber

IP00

/IP20

(IP23

)1Fi

lter

curr

ent

ratin

g a

t gi

ven

vol

tage

and

mot

or fr

eque

ncy

[A]2

VLT

pow

er a

nd c

urre

nt s

ize

Max

imum

filte

r lo

sses

Filte

r da

ta

38

0V @

60H

zan

d 4

00/4

40V

@ 5

0Hz

460/

480V

@60

Hz

and

500/

525V

@50

Hz3

575/

600V

@ 6

0Hz

690V

@ 5

0Hz

380

- 44

0V44

1 - 5

00V

525

- 55

0V55

1 -

690V

L

CkW

AkW

AkW

AkW

AW

uHnF

2 x

130B

2851

2 x

1302

852

or3

x 13

0B28

493

x 13

0B38

50

For

F-fr

ame

driv

es, p

aral

lel f

ilter

s sh

all b

e us

ed, o

ne fi

lter

for

each

inve

rter

mod

ule.

710

1260

800

1160

750

988

2 x

130B

2853

2 x

130B

2854

or3

x 13

0B28

513

x 13

0B28

52

900

945

3 x

130B

2853

3 x

130B

2854

800

1460

1000

1380

850

1108

1000

1060

1000

1700

1100

1530

1000

1317

1200

1260

2 x

130B

2849

2 x

130B

2852

450

800

500

730

500

659

500

880

560

780

1) T

he fi

lter

encl

osur

e is

IP20

for

wal

l-mou

nted

filte

rs a

nd IP

23 fo

r flo

or-m

ount

ed fi

lters

2) F

or d

erat

ing

with

mot

or fr

eque

ncy

cons

ider

60H

z ra

ting=

0.94

x 5

0Hz

ratin

g a

nd 1

00H

z ra

ting=

0.7

5 x

50H

z ra

ting

3) 5

25V

ope

ratio

n re

quire

s a

T7 d

rive



4 4

4.3 Electrical Data - Sine-wave Filters

Sine-wave Filter 3x380-500 V IP00/IP20

Code

Num

ber

IP00

/IP20

Filte

r Cu

rren

t Ra

ting

Switc

hing

Freq

uenc

yVL

T Po

wer

and

Cur

rent

Rat

ings

Filte

r Lo

sses

L-va

lue

C y-V

alue

1

@ 5

0Hz

@ 6

0Hz

@ 1

00H

z@

200

-240

V@

380

-440

V@

441

-500

V@

200

-240

V@

380

-440

V@

441

-500

VA

AA

kHz

kWA

kWA

kWA

WW

Wm

HuF

130B

2404

130B

2439

2.5

2.5

2*5

0.37

1.3

0.37

1.1

4545

291

0.25

1.8

0.55

1.8

0.55

1.6

5050

500.

372.

40.

752.

40.

752.

160

6060

130B

2406

130B

2441

4.5

43.

5*5

1.1

31.

13

6060

132.

20.

553.

51.

54.

11.

53.

465

7065

130B

2408

130B

2443

87.

55*

50.

754.

665

6.9

4.7

1.1

6.6

2.2

5.6

2.2

4.8

7570

701.

57.

53

7.2

36.

380

8080

130B

2409

130B

2444

109.

57.

5*5

410

48.

295

905.

26.

8

130B

2411

130B

2446

1715

613

52.

210

.690

3.1

103

12.5

5.5

135.

511

100

110

100

3.7

16.7

7.5

167.

514

.512

512

511

513

0B24

1213

0B24

4724

2318

45.

524

.211

2411

2115

015

015

02.

410

130B

2413

130B

2448

3836

28.5

415

3215

2717

016

01.

610

7.5

30.8

18.5

37.5

18.5

3416

018

017

013

0B22

8113

0B23

0748

45.5

364

1146

.222

4422

4027

027

026

01.

114

.7

130B

2282

130B

2308

6259

46.5

315

59.4

3061

3052

300

310

280

0.85

30

130B

2283

130B

2309

7571

563

18.5

74.8

3773

3765

350

350

330

0.75

30

130B

2284

130B

2310

115

109

863

2288

4590

5580

450

460

430

0.5

6030

115

5510

675

105

500

500

500

130B

2285

130B

2311

180

171

135

337

143

7514

790

130

650

600

600

0.3

9945

170

9017

711

016

068

070

068

013

0B22

8613

0B23

1226

024

719

53

110

212

132

190

820

800

0.2

141

132

260

160

240

900

880

*) 1

20H

z1 Eq

uiva

lent

STA

R-co

nnec

tion

val

ue



44

Sine-wave Filter 3x380-500V IP00/IP20

Code

Num

ber

IP00

/IP20

Filte

r Cu

rren

t Ra

ting

Switc

hing

Freq

uenc

yVL

T Po

wer

and

Cur

rent

Rat

ings

Filte

r Lo

sses

L-va

lue

C y-V

alue

1

@ 5

0Hz

@ 6

0Hz

@ 1

00H

z@

200

-240

V@

380

-440

V@

441

-500

V@

200

-240

V@

380

-440

V@

441

-500

VA

AA

kHz

kWA

kWA

kWA

WW

Wm

HuF

130B

2287

130B

2313

410

390

308

316

031

520

030

310

5010

500.

1319

820

039

525

036

112

0011

0013

0B22

8813

0B23

1448

045

636

03

250

480

315

443

1400

1350

0.11

282

130B

2289

130B

2315

660

627

495

331

560

035

554

020

0019

000.

1442

335

565

840

059

021

0020

0013

0B22

9013

0B23

1675

071

256

22

400

745

450

678

2900

2800

0..2

495

130B

2291

130B

2317

880

836

660

245

080

050

073

034

0033

000.

1156

450

088

056

078

036

0034

0013

0B22

9213

0B23

1712

0011

4090

02

560

990

630

890

3600

3600

0.07

584

663

011

2071

010

5038

0038

002x

130B

2291

2X13

0B23

1715

002

710

1260

800

1160

800

1460

1000

1380

2x13

0B22

922X

130B

2318

1700

210

0017

0011

0015

30

*) 1

20H

z1 Eq

uiva

lent

STA

R-co

nnec

tion

val

ue



4 4


Code

Num

ber

IP00

/IP20

Filte

r Cu

rren

t Ra

ting

Switc

hing

Freq

uenc

y

VLT

Pow

er a

nd C

urre

nt R

atin

gsFi

lter

loss

esL-

valu

eC y

-Val

ue1

@ 5

0Hz

@ 6

0Hz

@10

0Hz

@ 5

25-5

50V

@ 5

25-6

00V

@ 6

90V

@ 5

25-5

50V

@ 5

25-6

00V

@ 6

90V

AA

AkH

zkW

AkW

AkW

AW

WW

mH

uF

130B

2321

130B

2341

1312

.35

9.75

2

0.75

1.7

120

11.7

47

1.1

2.4

125

1.5

2.7

125

2.2

4.1

130

35.

213

04

6.4

140

5.5

9.5

160

7.5

11.5

170

130B

2322

130B

2342

2826

.521

2

1113

180

5.5

1011

1815

1823

023

015

2218

.522

250

250

18.5

2722

2728

028

013

0B23

2313

0B23

4345

42.5

33.5

222

3430

3430

030

03.

420

3041

3046

3746

360

330

360

130B

2324

130B

2344

7672

572

3752

3756

4554

450

420

450

233

4562

4576

5573

500

450

500

130B

2325

130B

2345

115

109

862

5583

5590

7586

800

750

750

1.3

4775

100

7511

390

108

850

800

850

130B

2326

130B

2346

165

157

123

290

131

9013

711

013

110

5010

0010

000.

966

110

155

110

162

132

155

1150

1100

1100

130B

2327

130B

2347

260

247

195

215

019

213

220

116

019

211

0010

5010

500.

694

180

242

160

253

200

242

1250

1200

1200

130B

2329

130B

2348

303

287

227

222

029

020

030

325

029

016

0016

0016

000.

513

6

1 Equi

vale

nt S

TAR-

conn

ectio

n v

alue



44


Code

Num

ber

IP00

/IP20

Filte

r Cu

rren

t Ra

ting

Switc

hing

Freq

uenc

y

VLT

Pow

er a

nd C

urre

nt R

atin

gsFi

lter

loss

esL-

valu

eC y

-Val

ue1

@ 5

0Hz

@ 6

0Hz

@10

0Hz

@ 5

25-5

50V

@ 5

25-6

00V

@ 6

90V

@ 5

25-5

50V

@ 5

25-6

00V

@ 6

90V

AA

AkH

zkW

AkW

AkW

AW

WW

mH

uF13

0B22

4113

0B22

7043

040

832

21.

526

034

425

036

031

534

418

5018

0018

000.

3527

230

042

931

542

940

041

021

0020

5020

0013

0B22

4213

0B22

7153

050

339

71.

537

552

340

052

350

050

025

0025

0024

000.

2834

0

130B

2337

130B

2381

660

627

495

1.5

450

596

450

596

560

570

2800

2800

2700

0.23

408

480

630

500

659

630

630

2900

2850

2850

130B

2338

130B

2382

765

726

573

1.5

560

730

560

763

710

730

3850

3800

3800

0.2

476

130B

2339

130B

2383

940

893

705

1.5

670

898

670

800

986

3350

3300

3350

0.16

612

750

939

900

898

3400

3350

130B

2340

130B

2384

1320

1250

990

1.5

820

1060

850

1108

1000

1060

4500

4300

4300

0.12

816

970

1260

1000

1317

1200

1317

4700

4600

4700

1 Equi

vale

nt S

TAR-

conn

ectio

n v

alue



4 4

Sine-wave Foot Print Filter 3x200-500V IP20

Code

Num

ber

Filte

r Cu

rren

t Ra

ting

Switc

hing

Freq

uenc

y

VLT

Pow

er a

nd C

urre

nt R

atin

gFi

lter

loss

esL-

valu

eC y

-Val

ue1

@ 5

0Hz

@ 6

0Hz

@ 1

00H

z@

200

-240

V@

380

-440

V@

441

-500

V@

200

-240

V@

380

-440

V@

441

-500

V

AA

AkH

zkW

AkW

AkW

AW

WW

mH

uF13

0B25

4210

108

54

104

8.2

6060

5.3

1.36

130B

2543

1717

13.6

52.

210

.63

12.5

5.5

135.

511

100

100

100

3.1

2.04

3.7

16.7

7.5

167.

514

.510

010

010

03.

12.

04



44

4.4 Sine-Wave Filters

Surroundings:Isolation class:EIS 155 2.5A up to 75AEIS 180 115A up to 2300AMax. allowed ambient temperature 45°C

Electrical data:

Over voltage test [voltage/time]2.5kV / 1min.

AC and DCOverload capacity 1.6x rated current for 1 minute, every 10 minutes

Voltage drop (phase to phase):Sine- wave filter 500V:2.5A 40V4.5A - 480A 30V660A- 1200A 50VSine-wave filter 690V:4.5A - 480A 83V

Technical Specifications

Voltage rating 3 x 200-500V AC and 3 x 525-690V AC

Nominal current I¬N @ 50Hz 2,5 – 1200A for higher power, modules can be paralleled

Motor frequency 0-60Hz without derating. 100/120Hz with derating (only 500V up to 10A)

Ambient temperature -25° to 45°C side by side mount, without derating

Min. switching frequency fmin 1,5kHz – 5kHz, depending on filter type

Max. switching frequency no limit

Overload capacity 160% for 60 sec. every 10 min.

Enclosure degree IP00 and IP20 (IP23 all floor standing filters)

Approval CE, UL and cUL(up to and including 115A), RoHS

The voltage drop can be calculated using this formula:

ud = 2 × π × f m × L × I

fm = output frequencyL = filter inductionsI = current

Illustration 4.1 Filter Diagram

T emper a tur e der a ting cur v e lout[%]

110%

100%

90%

80%

70%

60% 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60

Ambien t t emper a tur e [ º C]

cur r en t der a ting

130B

B068

.11



4 4

4.4.1 du/dt Filters

Technical Specifications

Voltage rating 3 x 200-690V

Nominal current @ 50Hz up to 880A. F-frame current ratings are achieved by filter paralleling, one filter per inverter module.

Motor frequency derating

50Hz Inominal

60Hz 0.94 x Inominal

100Hz 0.75 x Inominal

Minimum switching frequency no limit

Maximum switching frequency nominal switching frequency of the respective FC 102, 202 or 302

Overload capacity 160% for 60 seconds, every 10 min.

Enclosure degree IP00, IP 20 for wall-mounted, IP23 for floor mounted. IP21/NEMA 1 available for wall-mounted usingseparate kits.

Ambient temperature -10° to +45°CStorage temperature -25° to +60°CTransport temperature -25° to +70°CMaximum ambient temperature (withderating) Maximum altitude withoutderating

55°C

Maximum altitude without derating 1000m

Maximum altitude with derating 4000m

Derating with altitude 5%/1000m

MTBF 1481842 h

FIT 1,5 106 / h

Tolerance of the inductance ± 10%

Degree of pollution EN61800-5-1 II

Overvoltage category EN61800-5-1 III

Environmental Conditions Load 3K3

Environmental Conditions Storage 1K3

Environmental Conditions Transport 2K3

Noise level < frequency converter

Approvals CE (EN61558, VDE 0570), RoHS, cULus file E219022 (pending)



44

4.4.2 Sine-Wave Foot Print Filter

Technical SpecificationVoltage rating 3 x 200-500V AC

Nominal current I¬N @ 50Hz 10 – 17A

Motor frequency 0-60Hz without derating. 100/120Hz with derating (see derating curves below)

Ambient temperature -25° to 45°C side by side mount, without derating (see derating curves below)

Min. switching frequency fmin 5kHz

Max. switching frequency fmax 16kHz

Overload capacity 160% for 60 sec. every 10 min.

Enclosure degree IP20

Approval CE, RoHS

Illustration 4.2 Temperature deratingIllustration 4.3 Output frequency derating



4 4

5 How to Install

5.1 Mechanical Mounting

5.1.1 Safety Requirements for MechanicalInstallation

WARNINGPay attention to the requirements that apply to integrationand field mounting kit. Observe the information in the list toavoid serious damage or injury, especially when installinglarge units.

The filter is cooled by natural convection.To protect the unit from overheating it must be ensured thatthe ambient temperature does not exceed the maximumtemperature stated for the filter. Locate the maximumtemperature in the paragraph Derating for AmbientTemperature.If the ambient temperature is in the range of 45°C - 55°C,derating of the filter will become relevant.

5.1.2 Mounting

• All wall mounted filters must be mounted verticallywith the terminals at the bottom.

• Do not mount the filter close to other heatingelements or heat sensitive material (such as wood)

• The filter can be side-mounted with the frequencyconverter. There is no requirement for spacingbetween the filter and frequency converter.

• Top and bottom clearance is minimum 100mm(200mm for foot print filters).

• The surface temperature of IP20/23 units does notexceed 70°C.

• The surface temperature of IP00 filters can exceed70°C and a hot surface warning label is placed onthe filter.

Mechanical installation of HF-CMThe HF-CM cores have an oval shape to allow easier instal-lation. They should be placed around the three motor phases(U, V and W). It is important to put all three motor phasesthrough the core, else the core will saturate. It is alsoimportant not to put the PE or any grounding wires throughthe core, else the core will loose its effect. In mostapplications several cores have to be stacked.

PE U V W

130B

B726

.10

Illustration 5.1 Correct installation

PE U V W

130B

B727

.10

Illustration 5.2 Wrong installation. The PE should not go throughthe core.

The cores can vibrate due to the alternating magnetic field.When close to the cable’s isolation or other parts, it ispossible that the vibration causes the wearing of the core orcable isolation material. Use cable ties to secure the coresand cable.

How to Install Output Filters Design Guide


55

5.1.3 Earthing

The filter must be earthed before switching the power on(high leakage currents).Common mode interferences are kept small by ensuring thatthe current return path to the VLT has the lowest possibleimpedance.

• Choose the best earthing possibility (e.g. cabinetmounting panel)

• Use the enclosed (in accessory bag) protectiveearth terminal to ensure the best possible earthing

• Remove any paint present to ensure good electricalcontact

• Ensure that the filter and frequency converter makesolid electrical contact (high frequency earthing)

• The filter must be earthed before switching thepower on (high leakage currents)

5.1.4 Screening

It is recommended to use screened cables to reduce theradiation of electromagnetic noise into the environment andprevent malfunctions in the installation.

• Cable between the frequency converter output (U,V, W) and filter input (U1, V1, W1) to be screened ortwisted.

• Use preferably screened cables between the filteroutput (U2, V2, W2) and the motor. When

unscreened cables are employed it should beensured that the installation minimizes thepossibility of cross-couplings with other cablescarrying sensitive signals. This can be achieved bymeasures such as cable segregation and mountingin earthed cable trays.

• The cable screen must be solidly connected at bothends to the chassis (e.g. housing of filter andmotor).

• When IP00 filters are installed in cabinets andscreened cables are used, the screen of the motorcable should be terminated at the cabinet cableentry point.

• All screen connections must exhibit the smallestpossible impedance, i.e. solid, large areaconnections, both ends of screened cable.

• For maximum cable length between VLT andoutput filter:Below 7.5kW: 2mBetween 7,5 - 90kW: 5-10mAbove 90kW: 10-15m

NOTEThe cable between frequency converter and filter should bekept as short as possible

NOTEMore than 10m is possible but Danfoss strongly discourgesuch installations, due to the risk of increased EMI andvoltage spikes on the filter terminals.

Illustration 5.3 Wiring diagram

For F-frame drives parallel filters shall be used, one filter foreach inverter module.The cables or bus bars between inverter and filter shouldhave the same length for each module.The paralleling connection should be after the du/dt filter,either at the filters' terminals or at the motor terminals.



5 5

5.2 Mechanical Dimensions

5.2.1 Sketches

Wall Mounted Sine-wave filters

Illustration 5.4 IP00 Wall mounted

Illustration 5.5 IP20 Wall mounted

Floor Mounted Sine-wave filters

Illustration 5.6 IP00 Floor mounted

Illustration 5.7 IP23 Floor mounted



55

Illustration 5.8 IP20 Wall mounted foot print filters

Wall mounted du/du filters

a

b

A

C

B

c

e

d

f A A

130B

B523

.10

Illustration 5.9 IP00 wall mounted

b

a

A

C

B

e

f A

d

c

A

130B

B524

.10

Illustration 5.10 IP20 wall mounted



5 5

Floor mounted du/du filters

b B

a A

e

f C

A

A

130B

B525

.10

Illustration 5.11 IP00 floor mounted

C

B a

A b

f

e

130B

B526

.10

Illustration 5.12 IP23 floor mounted

30

88

516

35

15

�10.5

15

130B

B527

.10

Illustration 5.13 L-shaped terminal kit 130B3137(Only for du/dt filters)


23 24

18

34

8

ø13

88

80

25

12.5

23 34

62.513

0BB5

29.10




55

5.2.2 Physical DimensionsCo

denu

mbe

rEn

clos

ure

Dim

ensi

ons

[mm

]W

eigh

tM

ount

ing

Wire

cro

ss s

ectio

nTe

rmin

alsc

rew

torq

ue

L-sh

aped

term

inal

kit1)

IP00

/IP

20(IP

23)

A

aB

bC

cd

ef

kg

mm

2A

WG

Nm

/ft-

IbPa

rtnu

mbe

r13

0B28

35IP

0029

527

911

585

170

11.5

136.

26

4.6

wal

l16

64/

3N

/A13

0B28

36IP

2037

027

911

885

242

11.5

136.

26

6.3

wal

l16

64/

3N

/A13

0B28

38IP

0039

537

915

512

522

011

.513

6.2

612

.7w

all

501

6/4.

5N

/A13

0B28

39IP

2047

537

915

712

524

811

.513

6.2

616

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all

501

6/4.

5N

/A13

0B28

41IP

0039

537

915

512

522

011

.513

6.2

622

wal

l50

16/

4.5

N/A

130B

2842

IP20

475

379

158

125

248

11.5

136.

26

25.5

wal

l50

16/

4.5

N/A

130B

2844

IP00

445

429

185

155

235

11.5

136.

26

27w

all

953/

012

/9N

/A13

0B28

45IP

2052

542

918

815

533

511

.513

6.2

630

wal

l95

3/0

12/9

N/A

130B

2847

IP00

300

275

190

100

235

1122

33flo

orM

10

18/1

3.3

130B

313

713

0B28

48IP

2342

532

570

066

062

0

13

1764

.5flo

orM

10

18/1

3.3

130B

313

713

0B28

49IP

0030

027

525

012

523

5

11

2236

floor

2 x

M10

30

/22.

113

0B31

38

130B

3850

IP23

425

325

700

660

620

1317

67.5

floor

2 x

M10

30

/22.

113

0B31

38

130B

2851

IP00

350

325

250

123

270

1122

47flo

or2

x M

10

30/2

2.1

130B

313

813

0B28

52IP

2342

532

570

066

062

0

13

1778

.5flo

or2

x M

10

30/2

2.1

130B

313

813

0285

3IP

0040

037

529

015

928

3

11

2272

floor

4 x

M10

30

/22.

113

0B31

39

130B

2854

IP23

792

660.

594

077

991

8

11

2218

2flo

or4

x M

10

30/2

2.1

130B

313

91)

For

floo

r m

ount

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lters

, an

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min

al c

onne

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n k

it is

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e fo

r th

e ca

se o

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stal

latio

n. P

leas

e se

e th

e L-

shap

ed t

erm

inal

kit

ske

tche

s.Th

e ki

t is

not

incl

uded

in t

he fi

lter

deliv

ery

and

sho

uld

be

orde

red

sep

arat

ely.



5 5

500V

Sin

e-w

ave

Filte

r -

Phys

ical

dim

ensi

ons

Code

num

ber

Ensl

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easu

rem

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/ D

imen

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ount

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ire c

ross

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Term

inal

scr

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rque

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l/Flo

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m/f

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200

190

7560

205

78

4.5

52.

5w

all

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00.

6/0.

4413

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203.

313

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0020

019

075

6020

57

84.

55

3.3

wal

l4

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10

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130B

2441

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4.2

130B

2408

IP00

268

257

9070

205

811

6.5

6.5

4.6

wal

l4

24 -

10

0.6/

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130B

2443

IP20

206

5.8

130B

2409

IP00

268

257

9070

205

811

6.5

6.5

6.1

wal

l4

24 -

10

0.6/

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130B

2444

IP20

7.1

130B

2411

IP00

268

257

130

9020

58

116.

56.

57.

8w

all

424

- 1

00.

6/0.

4413

0B24

46IP

209.

113

0B24

12IP

0033

031

215

012

026

012

199

914

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all

1620

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513

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2016

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0043

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215

012

026

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199

917

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all

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- 4

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513

0B24

48IP

2025

919

.913

0B22

81IP

0053

050

017

012

525

812

199

2034

wal

l50

6 -

1/0

8/5.

913

0B23

07IP

2026

039

130B

2282

IP00

610

580

170

125

260

1219

920

36w

all

506

- 1/

08/

5.9

130B

2308

IP20

4113

0B22

83IP

0061

058

017

013

526

012

199

2050

wal

l50

6 -

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15/1

1.1

130B

2309

IP20

5413

0B22

84IP

0033

029

043

038

045

0

13

2668

floor

M8

1 -

2/0

15/1

1.1

130B

2310

IP23

670

500

460

522

11

1587

130B

2285

IP00

450

400

524

235

402

1326

87flo

orM

81

- 2/

015

/11.

113

0B23

11IP

2394

065

061

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211

1511

3M

1018

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313

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86IP

0045

040

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644

550

6

13

2612

5flo

orM

123/

030

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113

0B23

12IP

2394

065

061

078

2

1115

190

M10

130B

2287

IP00

480

430

560

330

675

1325

190

floor

M12

3/0

30/2

2.1

130B

2313

IP23

940

650

610

782

1115

245

130B

2288

IP00

600

430

630

310

650

1326

235

floor

2xM

124/

030

/22.

113

0B23

14IP

2310

5076

072

074

2

11

1531

013

0B22

89IP

0062

057

068

343

576

413

2631

0flo

or2x

M12

5/0

30/2

2.1

130B

2315

IP23

1290

800

760

1152

1115

445

Tabl

e 5.

1 50

0V S

ine-

wav

e Fi

lter

- Ph

ysic

al d

imen

sion

s



55

500V

Sin

e-w

ave

Filte

r -

Phys

ical

dim

ensi

ons

Code

num

ber

Encl

osur

eM

easu

rem

ents

/ D

imen

sion

sW

eigh

tM

ount

ing

dire

ctio

nM

ax. w

ire c

ross

sec

tion

Term

inal

scr

ewto

rque

Aa

Bb

Cc

de

fkg

Wal

l/Flo

orm

m2

AW

GN

m/f

t-lb

130B

2290

IP00

660

610

680

370

684

1326

470

floor

2xM

126/

030

/22.

113

0B23

16IP

2312

9080

076

011

52

1115

605

130B

2291

IP00

760

610

682

380

893

1326

640

floor

2xM

126/

030

/22.

113

0B23

17IP

2312

9080

076

011

5211

1581

013

0B22

92IP

0074

069

068

236

093

6

13

2568

0flo

or2x

M12

For f

ield

wiri

ng u

se c

oope

rbu

s ba

rs o

nly

30/2

2.1

130B

2318

IP23

1290

690

800

760

1152

1115

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Tabl

e 5.

2 50

0V S

ine-

wav

e Fi

lter

- Ph

ysic

al d

imen

sion

s



5 5

690V

Sin

e-w

ave

filte

r -

Phys

ical

Dim

ensi

ons

Code

num

ber

Encl

osur

eM

easu

rem

ents

/ D

imen

sion

sW

eigh

tM

ount

ing

dire

ctio

nM

ax. w

ire c

ross

sec

tion

Term

inal

scr

ewto

rque

Aa

Bb

Cc

de

fkg

wal

l/flo

orm

m2

AW

GN

m/f

t-lb

130B

2321

IP00

430

412

150

120

260

1219

99

14.5

wal

l16

20 -

82/

1.5

130B

2341

IP20

16.7

130B

2322

IP00

270

220

410

240

368

1326

30flo

orM

820

- 8

15/1

1.1

130B

2342

IP23

670

500

460

522

1115

5513

0B23

23IP

0031

026

041

032

037

8

13

2645

floor

M8

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615

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113

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43IP

2367

050

046

052

2

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0B23

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0036

031

041

032

044

013

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floor

M8

6 -

415

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113

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050

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211

1510

513

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25IP

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13

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11

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0055

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549

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13

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102/

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910

650

610

782

11

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0054

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066

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113

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102/

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800

760

1152

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590

540

680

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643

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floor

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313

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2312

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076

011

52

1115

550

130B

2242

IP00

680

630

650

350

794

1326

430

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2xM

124/

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1260

800

760

1152

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610

130B

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IP00

790

640

677

365

794

1326

540

floor

2xM

125/

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113

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81IP

2312

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879

076

411

52

1115

675

130B

2338

IP00

900

640

684

430

884

1326

540

floor

2xM

125/

0 -

6/0

30/2

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130B

2382

IP23

1290

418

800

760

1152

1115

670

130B

2339

IP00

1140

660

584

453

928

1326

700

floor

2xM

126/

030

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113

0B23

83IP

2312

6080

076

011

52

1115

775

130B

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IP00

880

800

740

620

1054

1326

1020

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2xM

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113

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2313

0480

086

013

0211

1510

20

Tabl

e 5.

3 69

0V S

ine-

wav

e fil

ter

- Ph

ysic

al D

imen

sion

s



55

Foot

Prin

t Si

ne-W

ave

Filte

r -

Tech

nica

l Dat

aCo

de N

umbe

rFo

ot P

rint

Dim

ensi

ons

Wei

ght

Mou

ntin

gD

irect

ion

Max

. Wire

Cro

ssSe

ctio

n

A

aB

bC

cd

ef

[kg]

m

m2

130B

2542

A2

282

257

9070

202

1011

615

8w

all

413

0B25

43A

328

225

713

011

021

210

116

1511

.5w

all

4

Tabl

e 5.

4 Fo

ot P

rint

Sine

-Wav

e Fi

lter

- Te

chni

cal D

ata



5 5

6 How to Programme the Frequency Converter

• The VLT® switching frequency must be set to thevalue specified for the individual filter. Pleaseconsult the VLT® Programming Guide for thecorresponding parameter values.

• With an output filter installed only a reducedAutomatic Motor Adaption (AMA) can be used.



6.1.1 Parameter Settings for Operation with Sine-wave Filter

Parameter no. Name Suggested setting

14-00 Switching Pattern For Sine-wave filters choose SFAVM

14-01 Switching Frequency Sine-wave: Choose valuedu/dt: Choose max. value

14-55 Output Filter Choose Sine-wave filter fixed

14-56 Capacitance Output Filter Set the capacitance*

14-57 Inductance Output Filter Set the inductance*

*) For FLUX control principle only. Values can be found in the chapter Selection of output filter section Electrical Data - du/dt Filters and sectionElectrical Data - Sine-wave Filters

How to Programme the Freque... Output Filters Design Guide


66

Index

AAbbreviations 3

Accessory Bag 29

Acoustic Noise 12

Aggressive Environments 11

CCable Length 10

Capacitance 10

Capacitors 10

CE Conformity and Labelling 4

Common-mode Voltage 7

Conducted Noise 9

Cut Off Frequency 10

DDu/dt Ratio 5

EEarthing 29

Electromagnetic 5, 7

Electromagnetic Emissions 12

EMC 10

EMC performance 10

FFlash Over 11

GGeneral Purpose Motors 11

General Warning 3

HHarmonics 7

High Frequency 7

High-frequency Noise 7

High-voltage Warning 3

IIEC 6

IEC 600034-25 11

IEC60034-17 10

IEC-60034-17* 10

Impedance 5

Inductance 10

Inductors 10

Insulation 5

Insulation Stress 10

LLC-filter 12

MMagnetostriction 7

Maximum Cable Length 29

Motor Bearing Stress 10

Motor Cable 5

Mounting 28

NNEMA 6

NEMA-MG1 10

PPhase-to-phase 7

Pulse Reflections 12

Pulsewidth Modulated 7

RReflection Coefficient 5, 6

Regenerative Braking 11

Retrofit 11

RFI filter 10

Ringing Oscillation 8

SSafety Requirements For Mechanical Installation 28

Screened Cables 29

Sinusoidal 7, 8

Step Up Applications 13

TThe Low-voltage Directive (73/23/eec) 4

Tr 6

UUpeak 6

VVoltage Drop 10

Voltage Peaks 10

WWave Reflection 5

Index Output Filters Design Guide


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*MG90N402*130R0457 MG90N402 Rev. 2010-05-03

output filters design guidefiles.danfoss.com/download/drives/doc_mg90n402.pdf · • reduction of...

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