丹弗斯变频器说明书VLT3500

丹弗斯变频器说明书VLT3500

Section 1

Product Introduction

1.1Safety warnings...............................................21.2Literature description.......................................31.3Principle of the VLT® 3500 HVAC....................4Section 2

Mechanical and electrical installation

2.1Installation related product data......................52.2Cabinet sizes of VLT® 3500 HVAC...................82.3Machanical installation..................................102.4Electrical installation......................................132.5CE-labelling...................................................172.6EMC-correct installation................................192.7Installation examples.....................................24Section 3

Operation and programming

3.1Display and keypad.......................................333.2Initialisation, return to factory setting.............383.3Parameter overview.......................................393.4Parameter group 0, operation and display.......403.5Parameter group 1, Load and motor...............443.5.1 PID-controller..............................................473.6Parameter group 2, references and limits.........513.7Parameter group 3, start/stop functions..........563.8Parameter group 4, inputs and outputs...........603.9Parameter group 6, service and diagnostics....71Section 4

Diagnosis and service

4.1Status messages...........................................754.2Warnings.......................................................764.3Alarm messages............................................774.4Fault messages.............................................784.5Special conditions.........................................804.6EMC test results............................................824.7Factory settings.............................................854.8Customer parameter setting..........................88Index.....................................................................

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Contents

丹弗斯变频器说明书VLT3500

1.1 Safety

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1.2 Literature description

丹弗斯变频器说明书VLT3500

1.3 Principle of the VLT 3500 HVAC

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丹弗斯变频器说明书VLT3500

2.1 Installation related product data

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丹弗斯变频器说明书VLT3500

2.2 Cabinet sizes

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2.2 Cabinet sizes

丹弗斯变频器说明书VLT3500

2.3 Mechanical installation

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2.3 Mechanical installation

丹弗斯变频器说明书VLT3500

2.3 Mechanical installation

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2.4 Electrical installation

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2.4 Electrical installation

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2.4 Electrical installation

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2.4 Electrical installation

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丹弗斯变频器说明书VLT3500

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® 3500 HVAC

sWhat is CE-labelling ?

2.The frequency converter is intended for use in aThe purpose of CE-labelling is to avoid technical obsta-complete product. It is sold e.g. to a professionalcles to trade within EFTA and the EU. The EU hasmachine builder who has the technical knowledgeintroduced the CE-label as a simple way of showingit takes to install the frequency converter correctly.whether a product complies with the relevant EU

The frequency converter need not be CE-labelleddirectives. The CE-label says nothing about the qualityin accordance with the EMC directive. Instead, theor specifications of a product. Three EU directives relatefrequency converter manufacturer must provideto frequency converters:detailed guidelines on how to carry out an EMC- The machine directive (89/392/EEC)correct installation.All machines with critical, moving parts are

3.The frequency converter is intended for use in ancovered by the machine directive which came intoinstallation built up on the site of use by a profes-force on 1 January 1995. Since a frequency con-sional. This could be e.g. a complete installationverter is largely electrical by function, it does notfor manufacturing purposes or for the generationfall under the machine directive. However, if aof heat/ventilation. The installation is planned andfrequency converter is supplied for use in a ma-made by a professional installer. The complete sy-chine, we provide information about the safetystem is not to be CE-labelled in accordance withaspects relating to the frequency converter. We dothe EMC directive. The system must comply withthat by means of a manufacturer’s declaration.the basic requirements contained in the directive. The low-voltage directive (73/23/EEC)This is ensured by using components, appliancesFrequency converters must be CE-labelled inand systems which are CE-labelled in accordanceaccordance with the low-voltage directive, whichwith the EMC directive.will come into force on 1 January 1997.

4.The frequency converter is sold as part of a

This directive applies to all electrical equipmentcomplete system, such as an air-conditioning sy-and appliances used in the voltage range of 50-stem. The complete system must be CE-labelled1000 VAC and 75-1500 VDC.in accordance with the EMC directive.

The EMC directive (89/336/EEC)

EMC is short for electromagnetic compatibility.The presence of electromagnetic compatibilitysDanfoss VLT

means that the mutual interference betweenfrequency converter and CE-labelling

different components/appliances is so small thatCE-labelling is a positive feature when used for its ori-the functioning of the appliances is not affected.ginal purpose, i.e. to facilitate trade within the EU andThe EMC directive came into force on 1 JanuaryEFTA. However, CE-labelling may cover many

different specifications. This means that it has to be1996. The directive distinguishes between

checked what a given CE-label specifically http://www.77cn.com.cnponents, appliances, systems and installati-The specifications covered can in fact be widely

ons.different. That is why the CE-label can give installers afalse feeling of security when using a frequency con-The EU “Guidelines on the Application of Council

verter as a component in a system or an appliance.Directive 89/336/EEC” outline four typical situations ofusing a frequency converter. For each of these

We CE-label our VLT frequency converters insituations, explanations are offered as to whether theaccordance with the low-voltage directive. Thissituation in question is covered by the EMC directivemeans that as long as the frequency converter isand must be CE-labelled.

installed correctly, we guarantee that it complies withthe low-voltage directive. We issue a declaration of1.The frequency converter is sold direct to the end-conformity confirming that our CE-label complies withthe low-voltage directive.

user. This applies for example if the frequencyconverter is sold to a DIY-market. The end-user isnot an expert. He installs the frequency converterThe CE-label also applies to the EMC directive on thehimself, e.g. for controlling a hobby machine or acondition that the EMC-correct installation and filte-domestic appliance. This frequency converterring instructions in the manual have been followed.must be CE-labelled in accordance with the EMCOn this basis a conformity declaration is issued indirective.

accordance with the EMC directive.

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2.5 CE-labelling

丹弗斯变频器说明书VLT3500

2.5 CE-labelling

To help ensure that your installation is EMC-correct, themanual provides detailed instructions for installation.Furthermore, we specify which norms that are compliedwith by which of our products. We offer the filters thatcan be seen from the specifications and gladly provideother types of assistance that can help you obtain thebest possible EMC result.

If more than one device is installed in cabinets, the

cabinet rear plate, which must be made of metal, shouldbe used as a common earth reference plate. The metalcabinets of the different devices are mounted on thecabinet rear plate using the lowest possible HF

impedance. This avoids having different HF voltages forthe individual devices and avoids the risk of radio

interference currents running in connection cables thatmay be used between the devices. The radiointerference will have been reduced.

In order to obtain a low HF impedance, use the fasteningbolts of the devices as HF connection to the rear plate. Itis necessary to remove insulating paint or similar fromthe fastening points.

sCompliance with EMC directive 89/336/EEC

In support of our claim that the VLT frequency convertercomplies with the protection requirements for emissionand immunity under EMC directive 89/336/EEC, a

Technical Construction File (TCF) has been prepared foreach model.

Such a file defines the EMC requirements and themeasurements made in accordance with harmonisedEMC standards in a Power Drive System (PDS) thatconsists of a VLT frequency converter, a control cableand the controls (control box), motor cable and motorplus any options added. The Technical Construction Fileis prepared on this basis in cooperation with a dulyauthorised EMC laboratory (Competent Body).

In most cases the VLT frequency converter is used byprofessionals of the trade as a complex component

forming part of a larger appliance, system or installation.It must be noted that the responsibility for the final EMCproperties of the appliance, system or installation restswith the installer.

As an aid to the installer, Danfoss has prepared EMC in-stallation guidelines for the Power Drive System. Thestandards and testing levels stated for the Power DriveSystem are complied with, provided that the EMC-correct installation guidelines are applied.

sCables

The control cable and the filtered mains cable should beinstalled separately from the motor and brake cables toprevent interference coupling. Normally, a distance of 20cm will be sufficient, but it is recommended to keep thegreatest possible distance wherever possible, especiallywhere cables are installed in parallel over a substantialdistance.

With respect to sensitive signal cables, such as

telephone cables and data cables, the greatest possibledistance is recommended with a minimum of 1 m per 5m of power cable (mains and motor cable). It must bepointed out that the necessary distance depends on thesensitivity of the installation and the signal cables, andthat therefore no precise values can be stated.

If cable jaws are used, sensitive signal cables are not tobe placed in the same cable jaws as the motor cable orbrake cable.

If signal cables are to cross power cables, this should bedone at an angle of 90 degrees.

Remember that all interference-carrying in- or outgoingcables to/from a cabinet should be screened or filtered.

Earthing

The following basic issues need to be considered wheninstalling a frequency converter, so as to obtainelectromagnetic compatibility (EMC).

Safety earthing:Safety earthing: Please note that the frequency con-verter has a high leakage current and must be

earthed appropriately for safety reasons. Apply localsafety regulations.

High-frequency earthing:High-frequency earthing:equency earthing: Keep the earth wireconnections as short as possible.

sScreened cables

The screen must be a low HF-impedance screen. This isensured by using a braided screen of copper, aluminiumor iron. Screen armour intended for mechanicalprotection, for example, is not suitable for an EMC-correct installation.

Connect the different earth systems at the lowestpossible conductor impedance. The lowest possibleconductor impedance is obtained by keeping the con-ductor as short as possible and by using the greatestpossible surface area. A flat conductor, for example, hasa lower HF impedance than a round conductor for thesame conductor cvess sectional area.

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2.6 EMC-correct installation

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