Danfoss VLT AutomationDrive FC 300 User manual

Contents
1 How to Read these Operating Instructions
3
Approvals 4
Symbols 4
Abbreviations 5
2 Safety Instructions and General Warning 7
High Voltage 7
Avoid Unintended Start 8
Safe Stop of FC 300 8
Safe Stop Installation - FC 302 only (and FC 301 in frame size A1) 10
IT Mains 10
3 How to Install 11
Mechanical Installation 14
Electrical Installation 16
Connection to Mains and Earthing 17
Motor Connection 20
Fuses 23
Electrical Installation, Control Terminals 27
Connection Examples 28
Electrical Installation, Control Cables 29
Switches S201, S202, and S801 32
Additional Connections 35
Mechanical Brake Control 35
Motor Thermal Protection 35
How to Connect a PC to the frequency converter 36
The FC 300 PC Software 36
4 How to Programme 37
The Graphical and Numerical LCP 37
How to Programme on the Graphical LCP 37
How to Programme on the Numerical Local Control Panel 38
Quick Setup 40
Basic setup parameters 44
Parameter Lists 63
5 General Specifications 91
6 Troubleshooting 97
Warnings/Alarm Messages 97
Index
104
VLT
®
AutomationDrive FC 300 Operating
Instructions Contents
MG.33.AC.02 - VLT is a registered Danfoss trademark 1

1 How to Read these Operating Instructions
VLT
®
AutomationDrive FC 300 Operating
Instructions
2 MG.33.AC.02 - VLT is a registered Danfoss trademark
1

1 How to Read these Operating Instructions
VLT AutomationDrive
Operating Instructions
Software version: 5.0x
These Operating Instructions can be used for all VLT AutomationDrive frequency converters with software version 5.0x.
The software version number can be seen from par. 15-43
Software Version .
1.1.1 How to Read these Operating Instructions
VLT AutomationDrive is designed to provide high shaft performance on electrical motors. Please read this manual carefully for proper use. Incorrect
handling of the frequency converter may cause improper operation of the frequency converter or related equipment, shorten lifetime or cause other
troubles.
These Operating Instructions will help you get started, install, program, and troubleshoot your VLT AutomationDrive.
The VLT AutomationDrive comes in twoshaft performance levels. FC 301 ranges from scalar (U/f) to VVC+ and handles asynchronous motors only. FC
302 is a high performance frequency converter for asynchronous as well as permanent motors and handles various kinds of motor control principles such
as scalar (U/f), VVC+ and Flux vector motor control.
These Operating Instructions cover both FC 301 and FC 302. Where information covers both series, we refer to FC 300. Otherwise, we refer specifically
to either FC 301 or FC 302.
Chapter 1, How to Read these Operating Instructions, introduces the manual and informs you about the approvals, symbols, and abbreviations
used in this literature.
Chapter 2, Safety Instructions and General Warnings, entails instructions on how to handle the FC 300 correctly.
Chapter 3, How to Install, guides you through mechanical and technical installation.
Chapter 4, How to Programme, shows you how to operate and programme the FC 300 via the LCP.
Chapter 5, General Specifications, contains technical data about FC 300.
Chapter 6, Troubleshooting, assists you in solving problems that may occur when using FC 300.
Available Literature for FC 300
-The VLT AutomationDrive Operating Instructions provide the neccessary information for getting the drive up and running.
-The VLT AutomationDrive Design Guide entails all technical information about the drive design and applications including encoder, resolver and
relay options.
-The VLT AutomationDrive Profibus Operating Instructions provide the information required for controlling, monitoring and programming the
drive via a Profibus fieldbus.
-The VLT AutomationDrive DeviceNet Operating Instructions provide the information required for controlling, monitoring and programming the
drive via a DeviceNet fieldbus.
-The VLT AutomationDrive MCT 10 Operating Instructions provide information for installation and use of the software on a PC.
-The VLT AutomationDrive IP21 / Type 1 Instruction provides information for installing the IP21 / Type 1 option.
-The VLT AutomationDrive 24 V DC Backup Instruction provides information for installing the 24 V DC Backup option.
Danfoss technical literature is also available online at www.danfoss.com/drives.
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®
AutomationDrive FC 300 Operating
Instructions 1 How to Read these Operating Instructions
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1.1.2 Approvals
1.1.3 Symbols
Symbols used in this Operating Instructions.
NB!
Indicates something to be noted by the reader.
Indicates a general warning.
Indicates a high-voltage warning.
∗Indicates default setting
1 How to Read these Operating Instructions
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AutomationDrive FC 300 Operating
Instructions
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1.1.4 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
Printed Circuit Board PCB
Rated Inverter Output Current IINV
Revolutions Per Minute RPM
Regenerative terminals Regen
Second s
Synchronous Motor Speed ns
Torque limit TLIM
Volts V
1.1.5 Disposal Instruction
Equipment containing electrical components may not be disposed of together with domestic waste.
It must be separately collected with electrical and electronic waste according to local and currently valid leg-
islation.
VLT
®
AutomationDrive FC 300 Operating
Instructions 1 How to Read these Operating Instructions
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2 Safety Instructions and General Warning
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AutomationDrive FC 300 Operating
Instructions
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2SafetyInstructionsand General Warning
The DC link capacitors remain charged after power has been disconnected. To avoid electrical shock hazard, disconnect the frequency
converter from mains before carrying out maintenance. When using a PM-motor, make sure it is disconnected. Before doing service
on the frequency converter wait at least the amount of time indicated below:
Voltage Power Waiting Time
200 - 240 V 0.25 - 3.7 kW 4 minutes
5.5 - 37 kW 15 minutes
380 - 500 V 0.37 - 7.5 kW 4 minutes
11 - 75 kW 15 minutes
525 - 600 V 0.75 - 7.5 kW 4 minutes
2.1.1 High Voltage
The voltage of the frequency converter is dangerous whenever the frequency converter is connected to mains. Incorrect installation
or operation of the motor or frequency converter may cause damage to the equipment, serious personal injury or death. The instructions
in this manual must consequently be observed, as well as applicable local and national rules and safety regulations.
Installation in high altitudes
380 - 500 V: At altitudes above 3 km, please contact Danfoss regarding PELV.
525 - 690 V: At altitudes above 2 km, please contact Danfoss regarding PELV.
2.1.2 Safety Precautions
The voltage of the frequency converter is dangerous whenever connected to mains. Incorrect installation of the motor, frequency
converter or fieldbus may cause damage to the equipment, serious personal injury or death. Consequently, the instructions in this
manual, as well as national and local rules and safety regulations, must be complied with.
Safety Regulations
1. The mains supply to the frequency converter must be disconnected whenever repair work is to be carried out. Check that the mains supply has
been disconnected and that the necessary time has elapsed before removing motor and mains supply plugs.
2. The [OFF] button on the control panel of the frequency converter does not disconnect the mains supply and consequently it must not be used
as a safety switch.
3. The equipment must be properly earthed, the user must be protected against supply voltage and the motor must be protected against overload
in accordance with applicable national and local regulations.
4. The earth leakage current exceeds 3.5 mA.
5. Protection against motor overload is not included in the factory setting. If this function is desired, set par. 1-90
Motor Thermal Protection to
data value ETR trip 1 [4] or data value ETR warning 1 [3].
6. Do not remove the plugs for the motor and mains supply while the frequency converter is connected to mains. Check that the mains supply has
been disconnected and that the necessary time has elapsed before removing motor and mains plugs.
7. Please note that the frequency converter has more voltage sources than L1, L2 and L3, when load sharing (linking of DC intermediate circuit)
or external 24 V DC are installed. Check that all voltage sources have been disconnected and that the necessary time has elapsed before
commencing repair work.
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AutomationDrive FC 300 Operating
Instructions 2 Safety Instructions and General Warning
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2.1.3 General Warning
Warning:
Touching the electrical parts may be fatal - even after the equipment has been disconnected from mains.
Also make sure that other voltage inputs have been disconnected, such as load-sharing (linkage of DC intermediate circuit), as well as
the motor connection for kinetic back-up.
Using VLT AutomationDrive: wait at least 15 minutes.
Shorter time is allowed only if indicated on the nameplate for the specific unit.
Leakage Current
The earth leakage current from the frequency converter exceeds 3.5 mA. To ensure that the earth cable has a good mechanical
connection to the earth connection (terminal 95), the cable cross section must be at least 10 mm2or 2 times rated earth wires termi-
nated separately.
Residual Current Device
This product can cause a D.C. current in the protective conductor. Where a residual current device (RCD) is used for extra protection,
only an RCD of Type B (time delayed) shall be used on the supply side of this product. See also RCD Application Note MN.90.GX.02.
Protective earthing of the VLT AutomationDrive and the use of RCD's must always follow national and local regulations.
NB!
For vertical lifting or hoisting applications it is strongly recommended to ensure that the load can be stopped in case of an emergency
or a malfunction of a single part such as a contactor, etc.
If the frequency converter is in alarm mode or in an over voltage situation, the mechanical brake cuts in.
2.1.4 Before Commencing Repair Work
1. Disconnect the frequency converter from mains
2. Disconnect DC bus terminals 88 and 89 from load share applications
3. Wait for discharge of the DC-link. See period of time on the warning label
4. Remove motor cable
2.1.5 Avoid Unintended Start
While the frequency converter is connected to mains, the motor can be started/stopped using digital commands, bus commands, references or via the
Local Control Panel (LCP).
• Disconnect the frequency converter from mains whenever personal safety considerations make it necessary to avoid unintended start.
• To avoid unintended start, always activate the [OFF] key before changing parameters.
• An electronic fault, temporary overload, a fault in the mains supply, or lost motor connection may cause a stopped motor to start. Frequency
converter with Safe Stop (i.e. FC 301 in A1 enclosure and FC 302) provides protection against unintended start, if the Safe Stop Terminal 37 is
on low voltage level or disconnected.
2.1.6 Safe Stop of FC 300
The FC 302, and also the FC 301 in A1 enclosure, can perform the safety function Safe Torque Off (As defined by IEC 61800-5-2) or Stop Category 0 (as
defined in EN 60204-1).
FC 301 A1 enclosure: When Safe Stop is included in the drive, position 18 of Type Code must be either T or U. If position 18 is B or X, Safe Stop Terminal
37 is not included!
Example:
Type Code for FC 301 A1 with Safe Stop: FC-301PK75T4Z20H4TGCXXXSXXXXA0BXCXXXXD0
2 Safety Instructions and General Warning
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AutomationDrive FC 300 Operating
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It is designed and approved suitable for the requirements of Safety Category 3 in EN 954-1. This functionality is called Safe Stop. Prior to integration and
use of Safe Stop in an installation, a thorough risk analysis on the installation must be carried out in order to determine whether the Safe Stop functionality
and safety category are appropriate and sufficient. In order to install and use the Safe Stop function in accordance with the requirements of Safety
Category 3 in EN 954-1, the related information and instructions of the VLT AutomationDrive Design Guide MG.33.BX.YY must be followed! The information
and instructions of the Operating Instructions are not sufficient for a correct and safe use of the Safe Stop functionality!
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Instructions 2 Safety Instructions and General Warning
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2.1.7 Safe Stop Installation - FC 302 only (and FC 301 in frame size A1)
To carry out an installation of a Category 0 Stop (EN60204) in
conformance with Safety Category 3 (EN954-1), follow these
instructions:
1. The bridge (jumper) between Terminal 37 and 24 V DC must be
removed. Cutting or breaking the jumper is not sufficient. Re-
move it entirely to avoid short-circuiting. See jumper on illus-
tration.
2. Connect terminal 37 to 24 V DC by a short-circuit protected ca-
ble. The 24 V DC voltage supply must be interruptible by an
EN954-1 Category 3 circuit interrupt device. If the interrupt de-
vice and the frequency converter are placed in the same instal-
lation panel, you can use a regular cable instead of a protected
one.
3. The Safe Stop function only fulfills EN 954-1 Category 3 if it is
protected by an enclosure with protection class IP 54 or higher.
Therefore, FC 302s, with a protection class lower than IP54,
must be mounted inside a housing (cabinet) that provides IP54
protection. FC 302s with protection class IP54 or higher need no
further protection. FC 302 A1 is only delivered with an IP21 en-
closure and must therefore always be mounted in a cabinet.
Illustration 2.1: Bridge jumper between terminal 37 and 24 VDC
The illustration below shows a Stopping Category 0 (EN 60204-1) with safety Category 3 (EN 954-1). The circuit interrupt is caused by an opening door
contact. The illustration also shows how to connect a non-safety related hardware coast.
Illustration 2.2: Illustration of the essential aspects of an installation to achieve a Stopping Category 0 (EN 60204-1) with safety Category 3 (EN 954-1).
2.1.8 IT Mains
par. 14-50 RFI Filter can be used to disconnect the internal RFI capacitors from the RFI filter to ground in the 380 - 500 V frequency converters. If this
is done it will reduce the RFI performance to A2 level. For the 525 - 690 V frequency converters, par. 14-50
RFI Filter has no function. The RFI switch
cannot be opened.
2 Safety Instructions and General Warning
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AutomationDrive FC 300 Operating
Instructions
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3HowtoInstall
3.1.1 About How to Install
This chapter covers mechanical and electrical installations to and from power terminals and control card terminals.
Electrical installation of
options is described in the relevant Operating Instructions and Design Guide.
Read the safety instructions before installing the unit.
Illustration 3.1: Diagram showing basic installation including mains,
motor, start/stop key, and potentiometer for speed adjustment.
3.1.2 Checklist
When unpacking the frequency converter, ensure that the unit is undamaged and complete. Use the following table to identify the packaging:
Frame size: A1 A2 A3 A5 B1/B3 B2/B4 C1/C3 C2/C4
IP: 20 20/21 20/21 55/66 20/21/5/66 20/21/55/66 20/21/55/66 20/21/55/66
For power ratings, please see Mechanical Dimensions table on the next page
Table 3.1: Unpacking table
Please note that a selection of screwdrivers (phillips or cross-thread screwdriver and torx), a side-cutter, drill and knife is also recommended to have
handy for unpacking and mounting the frequency converter. The packaging for these enclosures contains, as shown: Accessories bag(s), documentation
and the unit. Depending on options fitted there may be one or two bags and one or more booklets.
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A1 A2 A3 A5 B1 B2 B3 B4 C1 C2 C3 C4 IP20 IP20/21 IP20/21 IP55/66 IP21/55/66 IP21/55/66 IP20 IP20 IP21/55/66 IP21/55/66 IP20 IP20 Accessory bags containing necessary brackets, screws and connectors are included with the drives upon delivery. Top and bottom mounting holes (B4, C3 and C4 only) All measurements in mm. * A5 in IP55/66 only
3 How to Install
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Frame Size A1 A2 A3 A5 B1 B2 B3 B4 C1 C2 C3 C4 Rated Power [kW] 200-240 V 0.25–1.5 0.25-3 3.7 0.25-3.7 5.5-7.5 11 5.5-7.5 11-15 15-22 30-37 18.5-22 30-37
380-480/500 V 0.37-1.5 0.37-4.0 5.5-7.5 0.37-7.5 11-15 18.5-22 11-15 18.5-30 30-45 55-75 37-45 55-75
525-600 V 0.75-4.0 5.5-7.5 0.75-7.5 11-15 18.5-22 11-15 18.5-30 30-45 55-90 37-45 55-90
IP NEMA
20
Chassis
20
Chassis
21
Type 1
20
Chassis
21
Type 1
55/66
Type 12
21/ 55/66
Type 1/Type
12
21/55/66
Type 1/Type
12
20
Chassis
20
Chassis
55/66
Type 1/Type
12
55/66
Type 1/Type
12
20
Chassis
20
Chassis
Height Height of back plate A 200 mm 268 mm 375 mm 268 mm 375 mm 420 mm 480 mm 650 mm 399 mm 520 mm 680 mm 770 mm 550 mm 660 mm Height with de-coupling plate A316 mm 374 mm 374 mm - - - - 420 mm 595 mm 630 mm 800 mm
Distance between mounting holes a 190 mm 257 mm 350 mm 257 mm 350 mm 402 mm 454 mm 624 mm 380 mm 495 mm 648 mm 739 mm 521 mm 631 mm
Width Width of back plate B 75 mm 90 mm 90 mm 130 mm 130 mm 242 mm 242 mm 242 mm 165 mm 230 mm 308 mm 370 mm 308 mm 370 mm Width of back plate with one C option B130 mm 130 mm 170 mm 170 mm 242 mm 242 mm 242 mm 205 mm 230 mm 308 mm 370 mm 308 mm 370 mm
Width of back plate with two C options B 150 mm 150 mm 190 mm 190 mm 242 mm 242 mm 242 mm 225 mm 230 mm 308 mm 370 mm 308 mm 370 mm
Distance between mounting holes b60 mm 70 mm 70 mm 110 mm 110 mm 215 mm 210 mm 210 mm 140 mm 200 mm 272 mm 334 mm 270 mm 330 mm
Depth
Depth without option A/B C207 mm 205 mm 207 mm 205 mm 207 mm 195 mm 260 mm 260 mm 249 mm 242 mm 310 mm 335 mm 333 mm 333 mm
With option A/B C 222 mm 220 mm 222 mm 220 mm 222 mm 195 mm 260 mm 260 mm 262 mm 242 mm 310 mm 335 mm 333 mm 333 mm
Screw holes
c 6.0 mm 8.0 mm 8.0 mm 8.0 mm 8.0 mm 8.25 mm 12 mm 12 mm 8 mm 12.5 mm 12.5 mm
dø8 mm ø11 mm ø11 mm ø11 mm ø11 mm ø12 mm ø19 mm ø19 mm 12 mm ø19 mm ø19 mm e ø5 mm ø5.5 mm ø5.5 mm ø5.5 mm ø5.5 mm ø6.5 mm ø9 mm ø9 mm 6.8 mm 8.5 mm ø9 mm ø9 mm 8.5 mm 8.5 mm
f5 mm 9 mm 9 mm 9 mm 9 mm 9 mm 9 mm 9 mm 7.9 mm 15 mm 9.8 mm 9.8 mm 17 mm 17 mm
Max weight 2.7 kg 4.9 kg 5.3 kg 6.6 kg 7.0 kg 13.5/14.2 kg 23 kg 27 kg 12 kg 23.5 kg 45 kg 65 kg 35 kg 50 kg
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3.2 Mechanical Installation
3.2.1 Mechanical mounting
All IP20 Frame Sizes as well as IP21/ IP55 Frame Sizes except A1*, A2 and A3 allow side-by-side installationOpen Chassis, Nema 12, and Nema 4 drives
can be mounted side-by-side..
If the IP 21 Enclosure kit is used on frame size A1, A2 or A3, there must be a clearance between the drives of min. 50 mm.
For optimal cooling conditions allow a free air passage above and below the frequency converter. See table below.
Air passage for different frame sizes
Frame
size: A1* A2 A3 A5 B1 B2 B3 B4 C1 C2 C3 C4
a
(mm): 100 100 100 100 200 200 200 200 200 225 200 225
b
(mm): 100 100 100 100 200 200 200 200 200 225 200 225
Table 3.2: * FC 301 only!
1. Drill holes in accordance with the measurements given.
2. You must provide screws suitable for the surface on which you want to mount the frequency converter. Retighten all four screws.
Table 3.3: Mounting frame sizes A5, B1, B2, B3, B4, C1, C2, C3 and C4 on a non-solid back wall, the drive must be provided with a back plate A due
to insufficient cooling air over the heat sink.
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3.2.2 Panel Through Mounting
A Panel Through Mount Kit is available for frequency converter series , VLT Aqua Drive and VLT AutomationDrive.
In order to increase heatsink cooling and reduce panel depth, the frequency converter may be mounted in a through panel. Furthermore the in-built fan
can then be removed.
The kit is available for enclosures A5 through C2.
NB!
This kit cannot be used with cast front covers. No cover or IP21 plastic cover must be used instead.
Information on ordering numbers is found in the Design Guide , section Ordering Numbers.
More detailed information is available in the Panel Through Mount Kit instruction, MI.33.H1.YY, where yy=language code.
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3.3 Electrical Installation
NB!
Cables General
All cabling must comply with national and local regulations on cable cross-sections and ambient temperature. Copper (60/75°C) con-
ductors are recommended.
Aluminium Conductors
Terminals can accept aluminium conductors but the conductor surface has to be clean and the oxidation must be removed and sealed by neutral acid-
free Vaseline grease before the conductor is connected.
Furthermore the terminal screw must be retightened after two days due to softness of the aluminium. It is crucial to keep the connection a gas tight
joint, otherwise the aluminium surface will oxidize again.
Tightening-up Torque
Frame size 200 - 240 V 380 - 500 V 525 - 690 V Cable for: Tightening up torque
A1 0.25-1.5 kW 0.37-1.5 kW -Mains, Brake resistor, load sharing, Motor cables 0.5-0.6 Nm
A2 0.25-2.2 kW 0.37-4 kW 0.75-4 kW
A3 3-3.7 kW 5.5-7.5 kW 5.5-7.5 kW
A5 3-3.7 kW 5.5-7.5 kW 0.75-7.5 kW
B1 5.5-7.5 kW 11-15 kW -Mains, Brake resistor, load sharing, Motor cables 1.8 Nm
Relay 0.5-0.6 Nm
Earth 2-3 Nm
B2 11 kW 18.5-22 kW -Mains, Brake resistor, load sharing cables 4.5 Nm
Motor cables 4.5 Nm
Relay 0.5-0.6 Nm
Earth 2-3 Nm
B3 5.5-7.5 kW 11-15 kW -Mains, Brake resistor, load sharing, Motor cables 1.8 Nm
Relay 0.5-0.6 Nm
Earth 2-3 Nm
B4 11-15 kW 18.5-30 kW -Mains, Brake resistor, load sharing, Motor cables 4.5 Nm
Relay 0.5-0.6 Nm
Earth 2-3 Nm
C1 15-22 kW 30-45 kW -Mains, Brake resistor, load sharing cables 10 Nm
Motor cables 10 Nm
Relay 0.5-0.6 Nm
Earth 2-3 Nm
C2 30-37 kW 55-75 kW -Mains, motor cables 14 Nm (up to 95 mm2)
24 Nm (over 95 mm2)
Load Sharing, brake cables 14 Nm
Relay 0.5-0.6 Nm
Earth 2-3 Nm
C3 18.5-22 kW 30-37 kW -Mains, Brake resistor, load sharing, Motor cables 10 Nm
Relay 0.5-0.6 Nm
Earth 2-3 Nm
C4 37-45 kW 55-75 kW -Mains, motor cables 14 Nm (up to 95 mm2)
24 Nm (over 95 mm2)
Load Sharing, brake cables 14 Nm
Relay 0.5-0.6 Nm
Earth 2-3 Nm
3.3.1 Removal of Knockouts for Extra Cables
1. Remove cable entry from the frequency converter (Avoiding foreign parts falling into the frequency converter when removing knockouts)
2. Cable entry has to be supported around the knockout you intend to remove.
3. The knockout can now be removed with a strong mandrel and a hammer.
4. Remove burrs from the hole.
5. Mount Cable entry on frequency converter.
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3.3.2 Connection to Mains and Earthing
NB!
The plug connector for power is plugable on frequency converters up to 7.5 kW.
1. Fit the two screws in the de-coupling plate, slide it into place and tighten the screws.
2. Make sure the frequency converter is properly earthed. Connect to earth connection (terminal 95). Use screw from the accessory bag.
3. Place plug connector 91(L1), 92(L2), 93(L3) from the accessory bag onto the terminals labelled MAINS at the bottom of the frequency converter.
4. Attach mains wires to the mains plug connector.
5. Support the cable with the supporting enclosed brackets.
NB!
Check that mains voltage corresponds to the mains voltage of the name plate.
IT Mains
Do not connect 400 V frequency converters with RFI-filters to mains supplies with a voltage between phase and earth of more than
440 V.
The earth connection cable cross section must be at least 10 mm2or 2 x rated mains wires terminated separately according to EN
50178.
The mains connection is fitted to the mains switch if this is included.
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Mains connection for Frame sizes A1, A2 and A3:
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Mains connector frame size A5 (IP 55/66)
When disconnector is used (frame size A5) the PE must be mounted on the left side of the drive.
Illustration 3.2: Mains connection frame sizes B1 and B2 (IP 21/NEMA
Type 1 and IP 55/66/ NEMA Type 12).
Illustration 3.3: Mains connection frame size B3 (IP20).
Illustration 3.4: Mains connection frame size B4 (IP20).
Illustration 3.5: Mains connection frame size C1 and C2 (IP 21/ NEMA
Type 1 and IP 55/66/ NEMA Type 12).
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Illustration 3.6: Mains connection frame size C3 (IP20). Illustration 3.7: Mains connection frame size C4 (IP20).
Usually the power cables for mains are unshielded cables.
3.3.3 Motor Connection
NB!
Motor cable must be screened/armoured. If an unscreened/unarmoured cable is used, some EMC requirements are not complied with.
Use a screened/armoured motor cable to comply with EMC emission specifications. For more information, see
EMC Test Results .
See section General Specifications for correct dimensioning of motor cable cross-section and length.
Screening of cables: Avoid installation with twisted screen ends (pigtails). They spoil the screening effect at higher frequencies. If it is necessary to
break the screen to install a motor isolator or motor contactor, the screen must be continued at the lowest possible HF impedance.
Connect the motor cable screen to both the decoupling plate of the frequency converter and to the metal housing of the motor.
Make the screen connections with the largest possible surface area (cable clamp). This is done by using the supplied installation devices in the frequency
converter.
If it is necessary to split the screen to install a motor isolator or motor relay, the screen must be continued with the lowest possible HF impedance.
Cable-length and cross-section: The frequency converter has been tested with a given length of cable and a given cross-section of that cable. If the
cross-section is increased, the cable capacitance - and thus the leakage current - may increase, and the cable length must be reduced correspondingly.
Keep the motor cable as short as possible to reduce the noise level and leakage currents.
Switching frequency: When frequency converters are used together with Sine-wave filters to reduce the acoustic noise from a motor, the switching
frequency must be set according to the Sine-wave filter instruction in par. 14-01
Switching Frequency .
1. Fasten decoupling plate to the bottom of the frequency converter with screws and washers from the accessory bag.
2. Attach motor cable to terminals 96 (U), 97 (V), 98 (W).
3. Connect to earth connection (terminal 99) on decoupling plate with screws from the accessory bag.
4. Insert plug connectors 96 (U), 97 (V), 98 (W) (up to 7.5 kW) and motor cable to terminals labelled MOTOR.
5. Fasten screened cable to decoupling plate with screws and washers from the accessory bag.
All types of three-phase asynchronous standard motors can be connected to the frequency converter. Normally, small motors are star-connected (230/400
V, Y). Large motors are normally delta-connected (400/690 V, Δ). Refer to the motor name plate for correct connection mode and voltage.
3 How to Install
VLT
®
AutomationDrive FC 300 Operating
Instructions
20 MG.33.AC.02 - VLT is a registered Danfoss trademark
3