Danfoss vacon nxn User guide
vacon® nxn
ac drives
non-regenerative front end unit (nfe)
user manual
AT LEAST THE 11 FOLLOWING STEPS OF THE
START-UP QUICK GUIDE
MUST BE PERFORMED DUR-
ING THE INSTALLATION AND COMMISSIONING.
IF ANY PROBLEMS OCCUR, PLEASE CONTACT YOUR LOCAL DISTRIBUTOR.
Start-up Quick Guide
1. Check that the delivery corresponds to your order, see Chapter 3
2. Before taking any commissioning actions, read carefully the safety instructions
in Chapter 1.2
3. Before the mechanical installation, check the minimum clearances around the
unit and check the ambient conditions in Chapter 5
4. Check the size of the supply cable/bus bar, DC output cable/bus bar, and mains
fuses, DC fuses and check the cable connections.
5. Follow the installation instructions, see Chapter 5.
6. The sizes and grounding of control connections are explained in Chapter 5.
7. All parameters have factory default values. No any changes need to make for
proper operation.
8. The VACON
®
NX Non-Regenerative Front End is now ready for use.
Vacon Ltd is not responsible for the use of the Non-Regenerative Front End against
the instructions.
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CONTENTS
VACON® NXN USER MANUAL
INDEX
1 SAFETY
2 EU DIRECTIVE
3 RECEIPT OF DELIVERY
4 Non-REGENERATIVE FRONT END UNIT (NFE)
5 INSTALLATION
6 CONTROL KEYPAD
7 APPENDICES
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1
ABOUT THE VACON® NXN USER'S MANUAL
Congratulations for choosing VACON® NX Non-Regenerative Front End!
The User's Manual will provide you with the necessary information about the installation, commissioning
and operation of VACON® NX Non-Regenerative Front End. We recommend that you carefully study these
instructions before powering up the Non-Regenerative Front End for the first time.
In the Non-Regenerative Front End Application Manual you will find information about the Nonregenerative Front End application. Should that application not meet the requirements of your process,
please contact the manufacturer for information on special application.
This manual is available in both paper and electronic editions. We recommend you to use the electronic
version if possible. If you have the electronic version at your disposal, you will be able to benefit from the
following features:
The manual contains several links and cross-references to other locations in the manual, which makes it
easier to move around in the manual. The reader can thus easily find and check things.
The manual also contains hyperlinks to web pages. To visit these web pages through the links, you must
have an internet browser installed on your computer.
This manual is applicable only for Non-Regenerative Front End unit, AC choke and optional components
that are introduced in this manual.
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VACON® NX N User Manual
Table of contents
Document code: DPD01172C
Date edited: 30.01.2019
1. Safety ............................................................................................................................ 6
1.1 Warnings ........................................................................................................................................ 6
1.2 Safety Instructions ........................................................................................................................ 6
1.3 Grounding ...................................................................................................................................... 6
1.4 Warning symbols ........................................................................................................................... 7
2. EU directive ................................................................................................................... 8
2.1 CE marking .................................................................................................................................... 8
2.2 EMC directive ................................................................................................................................. 8
2.2.1 Introduction........................................................................................................................... 8
2.2.2 Technical criteria .................................................................................................................. 8
2.2.3 VACON® Non-Regenerative Front End EMC classification ............................................... 8
2.2.4 .......................................................................... 8
3. Receipt of delivery ................................ ....................................................................... 10
3.1 Type designation code for the NFE unit ..................................................................................... 10
3.2 Type designation code for the AC choke .................................................................................... 12
3.3 Storage ......................................................................................................................................... 12
3.4 Maintenance ................................................................................................................................ 12
3.5 Lifting the modules ..................................................................................................................... 13
3.6 Lifting the AC choke .................................................................................................................... 14
3.7 Warranty ...................................................................................................................................... 14
4. Non-Regenerative Front End (NFE) .............................................................................. 15
4.1 Introduction ................................................................................................................................. 15
4.2 Non-Regenerative Front End enclosure sizes .......................................................................... 17
4.3 Non-Regenerative Front End unit technical data ..................................................................... 18
4.4 Application ................................................................................................................................... 19
4.5 Diagrams...................................................................................................................................... 19
4.5.1 Connection between control unit and power unit ............................................................ 19
4.6 Non-Regenerative Front End power ratings ............................................................................. 20
4.6.1 VACON® NXN; DC voltage 460 800V ................................................................................. 20
4.6.2 VACON® NXN; DC voltage 640 1100V ............................................................................... 20
4.7 Non-Regenerative Front End unit Dimensions ...................................................................... 20
4.8 AC choke Dimensions .............................................................................................................. 20
4.9 Non-Regenerative Front End Fuse selection ......................................................................... 21
4.9.1 Introduction......................................................................................................................... 21
4.9.2 Fuses; mains voltage 380 690V ........................................................................................ 21
4.9.2.1 AC fuses........................................................................................................................ 21
4.9.2.2 DC fuses ....................................................................................................................... 21
4.10 Non-Regenerative Front End unit Circuit breaker selection ................................................ 21
4.11 Non-Regenerative Front End unit Main contactor ................................................................. 22
4.12 Pre-Charging and start up.......................................................................................................... 22
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4.13 Paralleling ................................................................................................................................... 22
4.14 12-pulse solution ......................................................................................................................... 23
4.15 Derating ....................................................................................................................................... 23
4.15.1 As the Ambient Temperature ............................................................................................ 23
4.15.2 As the Installation altitude ................................................................................................. 25
5. Installation .................................................................................................................. 27
5.1 Mounting ...................................................................................................................................... 27
5.1.1 Non-Regenerative Front End Unit..................................................................................... 27
5.1.2 AC choke ............................................................................................................................. 28
5.1.3 Control Box ......................................................................................................................... 29
5.2 Cooling ......................................................................................................................................... 29
5.2.1 Non-Regenerative Front End unit .................................................................................... 29
5.2.2 AC choke ............................................................................................................................. 31
5.2.3 Arranging ventilation of the enclosure ............................................................................. 32
5.2.4 Steering air flow ................................................................................................................. 34
5.3 Power connection ........................................................................................................................ 35
5.3.1 AC connection ..................................................................................................................... 35
5.3.2 DC connection ..................................................................................................................... 36
5.4 Cable installation and the UL standards ................................................................................... 36
5.5 I/O terminals and I/O signals ...................................................................................................... 37
6. Control keypad ............................................................................................................. 40
6.1 Navigation .................................................................................................................................... 41
6.1.1 Monitoring menu ................................................................................................................ 41
6.1.2 Parameter menu ................................................................................................................ 42
6.1.3 Fault history menu ............................................................................................................. 44
6.1.4 System menu ...................................................................................................................... 46
7. Appendices .................................................................................................................. 47
Safety vacon 6
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1
1. SAFETY
1.1 Warnings
WARNING
1
The components of the power unit circuit are live when the NonRegenerative Front End is connected to AC supply. Coming into contact
with this voltage is extremely dangerous and may cause death or severe
injury. The control unit is isolated from mains potential.
2
The control I/O-terminals are isolated from the mains potential. However, the relay outputs and other I/O-terminals may have dangerous control
voltage present even when the Non-Regenerative Front End is disconnected from the AC supply.
3
Do not touch the components on the circuit boards. Static voltage discharge may damage the components.
1.2 Safety Instructions
1
The Non-Regenerative Front End, AC choke and optional components are
meant for fixed installations only.
2
Do not perform any measurements when the Non-Regenerative Front
End is connected to the AC supply.
3
After having disconnected the Non-Regenerative Front End from the AC
supply, wait until the fan stops. Wait 5 more minutes before doing any
work on the Non-Regenerative Front End connections. Do not even open
the cover before this time has expired.
4
Do not perform any voltage withstand tests on any part of the NonRegenerative Front End. There is a certain procedure according to which
the tests must be performed. Ignoring this procedure may result in damaged product.
5
Before connecting the Non-Regenerative Front End to AC supply, make
sure that the Non-Regenerative Front End front and cable covers are
closed.
6
Before doing any work on Common DC bus, system must be grounded.
1.3 Grounding
The Non-Regenerative Front End unit and AC choke must always be grounded with an grounding
conductor connected to the grounding terminal.
ONLY A COMPETENT ELECTRICIAN MAY CARRY OUT
THE ELECTRICAL INSTALLATION
!
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1.4 Warning symbols
For your own safety, please pay special attention to the instructions marked with the following symbols:
=
Dangerous voltage
WARNING
=
General warning
HOT SURFACE
=
Hot surface Risk of burn
NOTE! You can download the English and French product manuals with applicable safety, warning
and caution information from https://www.danfoss.com/en/service-and-support/.
REMARQUE Vous pouvez télécharger les versions anglaise et française des manuels produit
sur le site https://www.danfoss.com/en/service-and-support/.
EU directive vacon 8
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2. EU DIRECTIVE
2.1 CE marking
The CE marking on the product guarantees the free movement of the product within the EEA (European Economic Area). It also guarantees that the product complies with applicable directives (for
example, the EMC directive and other possible so-called new method directives). VACON® NX NonRegenerative Front End carries the CE label as a proof of compliance with the Low Voltage Directive
(LVD) and the Electro Magnetic Compatibility (EMC) directive. SGS FIMKO has acted as the Notified
Body.
2.2 EMC directive
2.2.1
Introduction
The EMC Directive provides that the electrical apparatus must not excessively disturb the environment it is used in, and, on the other hand, it must have an adequate level of immunity toward other
disturbances from the same environment.
The compliance of VACON® NX Non-Regenerative Front End with the EMC directive is verified with
Technical Construction Files (TCF) and checked and approved by SGS FIMKO, which is a Notified
Body. The Technical Construction Files are used to authenticate the conformity of VACON® NX Non-
Regenerative Front End with the Directive because it is impossible to test such a large product family in a laboratory environment and because the combinations of installation vary greatly.
2.2.2
Technical criteria
Our basic idea was to develop a range of VACON® NX Non-Regenerative Front End offering the best
possible usability and cost efficiency. EMC compliance was a major consideration from the outset of
the design.
2.2.3
VACON® Non-Regenerative Front End EMC classification
Factory delivered VACON® NX Non-Regenerative Front End are Class T equipment, which fulfills all
EMC immunity requirements (standard EN 61800-3).
Class T:
Class T equipment have a small earth leaking current and can be used with floating DC input.
2.2.4
The following page presents the photocopy of the Manufacturer's Declaration of Conformity assuring
the compliance of VACON® NX Non-Regenerative Front End with the EMC-directives.
Warning: This product is of the restricted sales distribution class according to IEC 61800-3. In residential areas, this product may cause radio interference in which case the user may be required to
take adequate measures.
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Receipt of delivery vacon 10
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3. RECEIPT OF DELIVERY
VACON® NX Non-Regenerative Front End has undergone scrupulous tests and quality checks at the
factory before they are delivered to the customer. However, after unpacking the product, check that
no signs of transportation damage are to be found on the product and that the delivery is complete
(compare the type designation of the product to the codes below, see Figure 3-1 and Figure 3-2).
Should the product have been damaged during the shipping, please contact primarily the cargo insurance company or the carrier.
If the delivery does not correspond to your order, contact the supplier immediately.
3.1 Type designation code for the NFE unit
In VACON® type designation code for Common DC Bus components, the Non-Regenerative Front End
Unit is characterized by letter N and letter N or S. If the Non-Regenerative Front End unit is ordered
by letter N delivery is not include anything else than the unit itself. If letter S is used delivery include
the unit, the AC choke.
NOTE! Delivery does NOT include any auxiliary devices which are needed for proper operation (the
AC or DC fuses, the fuses bases, the main contactor or circuit breaker etc.) The customer must take
care of them.
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Figure 3-1. Type designation code for the Non-Regenerative Front End.
Receipt of delivery vacon 12
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3.2 Type designation code for the AC choke
AC choke has one version which is suitable for 380-500V and 525-690V voltages.
Figure 3-2. Type designation code for the AC choke.
3.3 Storage
If VACON® NX Non-Regenerative Front End is to be stored before use, make sure that the ambient
conditions are acceptable:
Storage temperature °C
Relative humidity <95%, no condensation
3.4 Maintenance
All technical devices, drives as well, need a certain amount of care-taking and failure preventive
maintenance. To maintain trouble-free operation of the VACON® NX Non-Regenerative Front End,
environmental conditions, as well as load, line power, process control, etc. have to be within specifications, determined by manufacturer.
If all conditions are in accordance with the manufacturer's specifications, there are no other concerns, but to provide a cooling capacity high enough for the power- and control circuits. This requirement can be met by making sure, that the cooling system works properly. Operation of cooling
fans and cleanness of the heat sink should be verified regularly.
Regular maintenance is recommended to ensure trouble free operation and long lifetime of VACON®
NX Non-Regenerative Front End. At least the following things should be included in the regular
maintenance.
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Table 3-1. Maintenance interval
It may also be necessary to check the tightening torques of terminals at certain intervals.
It is also recommended to record all actions and counter values with dates and time for follow up of
maintenance. It may also be necessary to check the tightening torques of terminals at certain intervals.
3.5 Lifting the modules
The modules can be lifted by the holes on top. Place the lifting hooks symmetrically in at least four
holes. The maximum allowed lifting angle is 45 degrees. For enclosures FI9, see Figure 3-3.
The lifting equipment must be able to carry the weight of the module.
Figure 3-3. Lifting points for FI9 module.
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3.6 Lifting the AC choke
The AC choke can be lifted by the holes on top. Place the lifting hooks symmetrically in two holes.
The maximum allowed lifting angle is 45 degrees. Lifting points for the AC choke, see Figure 3-4.
Figure 3-4. Lifting points for AC choke.
3.7 Warranty
Only manufacturing defects are covered by the warranty. The manufacturer assumes no responsibility for damages caused during or resulting from transport, receipt of the delivery, installation, commissioning or use.
The manufacturer shall in no event and under no circumstances be held responsible for damages
and failures resulting from misuse, wrong installation, unacceptable ambient temperature, dust,
corrosive substances or operation outside the rated specifications.
Neither can the manufacturer be held responsible for consequential damages.
The Manufacturer's warranty period is 18 months from the delivery or 12 months from the commis-
sioning whichever expires first (General delivery terms NL92/Orgalime S92).
The local distributor may grant a warranty time different from the above. This warranty time shall be
specified in the distributor's sales and warranty terms. The manufacturer assumes no responsibility
for any other warranties than that granted by the manufacturer itself.
In all matters concerning the warranty, please contact your distributor first.
vacon 15 Non-Regenerative Front End (NFE)
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4. NON-REGENERATIVE FRONT END (NFE)
4.1 Introduction
The VACON® NX Non-Regenerative Front End is used to transfer power between the AC input and
intermediate DC circuit. The VACON® NX Non-Regenerative Front End has only a one-way function.
This means that power can only be transferred from the AC input to the intermediate DC circuit. If
braking is needed, brake chopper has to be connected to the intermediate DC circuit.
In a typical VACON® NX Non-Regenerative Front End configuration, the desired number of Inverters,
Figure 4-1, are connected to the intermediate DC circuit.
The Non-Regenerative Front End configuration consists of the unit itself, AC choke, AC fuses, main
contactor and DC fuses, Figure 4-2.
Figure 4-1. Typical Non-Regenerative Front End configuration.
NFE*
3
FFE*
3
2
3
INU
2
3
INU
2
3
INU
2
2
BCU
AFE*
Common DC bus
* alternative
2 2 2
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