Danfoss VLT AutomationDrive FC 300 Guide

FC 300 Design Guide
Contents
!How to Read this Design Guide .................................................. 5
"How to Read this Design Guide .................................................................. 5
"Approvals ............................................................................................... 7
"Symbols ................................................................................................. 7
"Abbreviations .......................................................................................... 8
"Definitions ............................................................................................. 8
"Power Factor ......................................................................................... 12
!Introduction to FC 300 ................................................................. 13
"Software Version ................................................................................... 13
"CE Conformity and Labeling .................................................................... 13
"What Is Covered .................................................................................... 14
"Danfoss VLT Adjustable Frequency Drive and CE Labeling ............................ 14
"Compliance with EMC Directive 89/336/EEC ............................................... 15
"Mechanical Build-Up ............................................................................... 16
"Air Humidity .......................................................................................... 17
"Aggressive Environments ........................................................................ 17
"Vibration and Shock ............................................................................... 18
"Control Principle .................................................................................... 18
"FC 300 Controls ..................................................................................... 19
"Control Structure in VVCplus ..................................................................... 20
"Control Structure in Flux Sensorless ......................................................... 21
"Control Structure in Flux with Motor Feedback ........................................... 22
"Local (Hand on) and Remote (Auto on) Control .......................................... 23
"Reference Handling ................................................................................ 25
"Scaling of References and Feedback ......................................................... 26
"Analog Reference with Dead Band ............................................................ 27
"DigiPot Reference .................................................................................. 31
"Automatic Motor Adaptation (AMA) ........................................................... 31
"Control of Mechanical Brake .................................................................... 32
"Control of Mechanical Brake .................................................................... 32
"Speed PID Control ................................................................................ 33
"The following parameters are relevant for the Speed Control ........................ 33
"Process PID Control ............................................................................... 37
"Ziegler Nichols Tuning Method ................................................................. 41
"Internal Current Regulator ...................................................................... 42
"Programming of Torque Limit and Stop .................................................... 42
"Parameter Download .............................................................................. 43
"General Aspects of EMC Emissions ............................................................ 43
"EMC Test Results (Emission, Immunity) .................................................... 45
"Required Compliance Levels .................................................................... 46
"EMC Immunity ...................................................................................... 46
"Selection of Brake Resistor ...................................................................... 48
"Control with Brake Function ..................................................................... 49
"Smart Logic Controller ............................................................................ 50
"Galvanic Isolation (PELV) ........................................................................ 51
"Ground Leakage Current ......................................................................... 52
"Extreme Running Conditions .................................................................... 52
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FC 300 Design Guide
"Motor Thermal Protection ........................................................................ 53
"Acoustic Noise ....................................................................................... 54
"Safe Stop of FC 300 ............................................................................... 54
"Safe Stop Operation ............................................................................... 54
"General Specifications ............................................................................ 56
!How to Select Your VLT ............................................................... 61
"Peak Voltage on Motor ............................................................................ 61
"Derating for Ambient Temperature ........................................................... 62
"Derating for Air Pressure ......................................................................... 62
"Derating for Running at Low Speed .......................................................... 62
"Derating for Installing Long Motor Cables or Cables with Larger Cross-Section 63
"Temperature-Dependent Switch Frequency ................................................ 63
"Options and Accessories ......................................................................... 64
"Encoder Option MCB 102 ........................................................................ 64
"Relay Option MCB 105 ............................................................................ 66
"24 V Back-Up Option (Option D) .............................................................. 68
"Brake Resistors ..................................................................................... 68
"Remote-mounting Kits for LCP ................................................................. 68
"External 24 V DC Supply ......................................................................... 69
"IP 21/IP 4X/ TYPE 1 (NEMA 1) Enclosure Kit .............................................. 69
"LC Filters .............................................................................................. 69
"Ordering Numbers ................................................................................. 70
"Electrical Data ....................................................................................... 74
"Efficiency .............................................................................................. 77
!How to Order .................................................................................... 79
"Drive Configurator ................................................................................. 79
"Ordering Form Type Code ........................................................................ 80
!How to Install .................................................................................. 83
"Mechanical Installation ........................................................................... 83
"Accessory Bag ....................................................................................... 83
"IP 21/Type 1 (NEMA 1) Enclosure Kit ........................................................ 84
"Safety Requirements of Mechanical Installation .......................................... 86
"Field Mounting ....................................................................................... 87
"Electrical Installation .............................................................................. 87
"Connection to electrical power and grounding ............................................ 87
"Motor connection ................................................................................... 88
"Motor Cables ......................................................................................... 89
"Thermal Motor Protection ....................................................................... 90
"Electrical Installation of Motor Cables ........................................................ 90
"Fuses ................................................................................................... 91
"Access to control terminals ...................................................................... 92
"Electrical Installation, Control Terminals .................................................... 93
"Terminal 10, analog input voltage ............................................................ 94
"Electrical Installation, Control Cables ........................................................ 95
"Switches S201, S202, and S801 .............................................................. 96
"Tightening Torque .................................................................................. 97
"Final Set-Up and Test ............................................................................. 97
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"Safe Stop Installation ............................................................................. 99
"Safe Stop Commissioning Test ................................................................ 100
"Additional Connections .......................................................................... 101
"Load sharing ........................................................................................ 101
"Installation of Load Sharing .................................................................... 101
"Brake Connection Option ....................................................................... 101
"Relay connection .................................................................................. 102
"Relay Output ........................................................................................ 102
"Control of Mechanical Brake ................................................................... 103
"Parallel Connection of Motors .................................................................. 103
"Direction of Motor Rotation ..................................................................... 104
"Thermal motor protection ...................................................................... 104
"Installation of Brake Cable ..................................................................... 104
"Bus Connection .................................................................................... 105
"How to Connect a PC to the FC 300 ......................................................... 105
"The FC 300 Software Dialog ................................................................... 105
"High Voltage Test .................................................................................. 106
"Safety Grounding .................................................................................. 106
"Electrical Installation - EMC Precautions ................................................... 106
"Use of EMC-Correct Cables ..................................................................... 108
"Grounding of Shielded/Armored Control Cables ......................................... 109
"Mains Supply Interference/Harmonics ...................................................... 110
"Residual Current Device ......................................................................... 111
!Application Examples .................................................................. 113
"Encoder Connection .............................................................................. 113
"Encoder Direction ................................................................................. 114
"Closed Loop Drive System ...................................................................... 115
"Smart Logic Control .............................................................................. 116
!How to Program ............................................................................. 119
"The FC 300 Local Control Panel ............................................................... 119
"How to Program on the Local Control Panel ............................................... 119
"Quick Transfer of Parameter Settings ....................................................... 121
"Control Panel - Display .......................................................................... 122
"Control Panel - LEDs .............................................................................. 122
"Control Panel - Control Keys ................................................................... 122
"Control Key Functions ............................................................................ 123
"Local Control Key Functions .................................................................... 124
"Display Mode ....................................................................................... 125
"Display Mode - Selection of Read-Outs ..................................................... 125
"Parameter Set-Up ................................................................................. 126
"Quick Menu Key Functions ...................................................................... 126
"Main Menu Mode ................................................................................... 127
"Parameter Selection .............................................................................. 128
"Changing Data ..................................................................................... 128
"Changing a Text Value ........................................................................... 128
"Changing a Group of Numeric Data Values ................................................ 129
"Infinitely Variable Change of Numeric Data Value ...................................... 129
"Changing of Data Value, Step-by-Step ..................................................... 130
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"Read-out and Programming of Indexed Parameters ................................... 130
"Initialization to Default Settings .............................................................. 130
"Parameters: Operation and Display ......................................................... 132
"Parameters: Load and Motor .................................................................. 140
"Parameters: Brakes .............................................................................. 151
"Parameters: Reference/Ramps ............................................................... 154
"Parameters: Limits/Warnings ................................................................. 163
"Parameters: Digital In/Out ..................................................................... 166
"Parameters: Analog In/Out .................................................................... 175
"Parameters: Controllers ......................................................................... 179
"Parameters: Communications and Options ............................................... 182
"Parameters: Profibus ............................................................................ 186
"Parameters: DeviceNet CAN Fieldbus ....................................................... 192
"Parameters: Smart Logic Control ............................................................ 195
"Parameters: Special Functions ................................................................ 205
"Parameters: Drive Information ............................................................... 209
"Parameters: Data Read-outs .................................................................. 214
"Parameters: EncoderInput ..................................................................... 219
"Parameter lists ..................................................................................... 220
"Protocols ............................................................................................. 235
"Telegram Traffic .................................................................................... 235
"Telegram Structure ............................................................................... 235
"Data Character (byte) ........................................................................... 237
"Process Words ...................................................................................... 242
"Control Word According to FC Profile (CTW) .............................................. 243
"Status Word According to FC Profile (STW) ............................................... 246
"Control Word according to PROFIdrive Profile (CTW) .................................. 248
"Status Word According to PROFIdrive Profile (STW) ................................... 251
"Serial Communication Reference ............................................................. 253
"Present Output Frequency ...................................................................... 254
"Example 1: For Controlling the Drive and Reading Parameters .................... 254
"Example 2: Only for Controlling the Drive ................................................ 255
"Read Parameter Description Elements ...................................................... 255
"Additional Text ..................................................................................... 261
!Troubleshooting ............................................................................. 263
"Warnings/Alarm Messages ..................................................................... 263
!Index .................................................................................................. 271
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FC 300 Design Guide
How to Read this Design Guide
"How to Read this Design Guide
This Design Guide will introduce all aspects of the FC 300.
Chapter 1, How to Read this Design
Guide, introduces the design guide provides
information about the approvals, symbols, and
abbreviations used in this manual.
Page divider for How to Read this Design Guide.
Chapter 2, Introduction to FC 300, information
about available features and instructions on how
to handle the FC 300 correctly.
Page divider for Introduction to FC 300.
Chapter 3, How to Select Your VLT, how to select
the right FC 300 model for the application.
Page divider for How to Select Your VLT.
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FC 300 Design Guide
How to Read this Design Guide
Chapter 4, How to Order, supplies the information
needed for ordering the FC 300.
Page divider for How to Order.
Chapter 5, How to Install, provides information
on the mechanical and electrical installation.
Page divider for How to Install
Chapter 6, How to Program, information
on how to operate and program the FC 300
via the Local Control Panel.
Page divider for How to Program.
Chapter 7, Troubleshooting, guidance in solving
problems that may occur when using FC 300.
Page divider for Troubleshooting.
Available literature for FC 300
-The VLT®AutomationDrive FC 300 Operating Instructions MG.33.AX.YY provide the
necessary information for getting the drive up and running.
-The VLT®AutomationDrive FC 300 Design Guide MG.33.BX.YY entails all technical information
about the drive and customer design and applications.
-The VLT®AutomationDrive FC 300 Profibus Operating Instructions MG.33.CX.YY provide the information
required for controlling, monitoring and programming the drive via a Profibus fieldbus.
-The VLT®AutomationDrive FC 300 DeviceNet Operating Instructions MG.33.DX.YY provide the information
required for controlling, monitoring and programming the drive via a DeviceNet fieldbus.
Danfoss Drives technical literature is also available online at www.danfoss.com/drives.
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FC 300 Design Guide
How to Read this Design Guide
"Approvals
"Symbols
SymbolsusedinthisDesignGuide.
NOTE
Indicates something to be noted by the reader.
Indicates a general warning.
Indicates a high-voltage warning.
Indicates default setting
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FC 300 Design Guide
How to Read this Design Guide
"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
Electronic Thermistor Relay ETR
Adjustable Frequency Drive AFD
Gram g
Hertz Hz
Horsepower HP
Kilohertz kHz
Kilowatt KW
Local Control Panel LCP
Meter m
Milliampere mA
Millisecond ms
Minute min
Motion Control Tool MCT
Motor Type Dependent M-TYPE
Nanofarad nF
Newton meter Nm
Nominal motor current IM,N
Nominal motor frequency fM,N
Nominal motor power PM,N
Nominal motor voltage UM,N
Parameter par.
Rated Inverter Output Current IINV
Revolutions per minute RPM
Second s
Torque limit TLIM
Volt V
"Definitions
Drive:
D-TYPE
Size and type of the connected drive (dependencies).
IVLT,MAX
The maximum output current.
IVLT,N
The rated output current supplied by the adjustable frequency drive.
UVLT MAX
The maximum output voltage.
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FC 300 Design Guide
How to Read this Design Guide
Input
Control command:
You can start and stop the connected motor by
means of LCP and the digital inputs.
Functions are divided into two groups.
Functions in group 1 have higher priority
than functions in group 2.
Group 1 Reset, Coasting stop, Reset and
Coasting stop, Quick-stop, DC
braking, Stop and the "Off" key.
Group 2 Start, Pulse start, Reversing,
Start reversing, Jog and Freeze
output
Motor:
fJOG
The motor frequency when the jog function is activated (via digital terminals).
fM
The motor frequency.
fMAX
The maximum motor frequency.
fMIN
The minimum motor frequency.
fM,N
The rated motor frequency (nameplate data).
IM
The motor current.
IM,N
The rated motor current (nameplate data).
M-TYPE
Size and type of the connected motor (dependencies).
nM,N
The rated motor speed (nameplate data).
PM,N
The rated motor power (nameplate data).
TM,N
The rated torque (motor).
UM
The instantaneous motor voltage.
UM,N
The rated motor voltage (nameplate data).
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FC 300 Design Guide
How to Read this Design Guide
Break-away torque:
ηVLT
The efficiency of the adjustable frequency drive is defined as the ratio between
the power output and the power input.
Start-disable command:
A stop command belonging to the group 1 control commands - see this group.
Stop command:
See Control commands.
References:
Analog Reference
A signal transmitted to the analog inputs 53 or 54, can be voltage or current.
Binary Reference
A signal transmitted to the serial communication port.
Preset Reference
A defined preset reference to be set from -100% to +100% of the reference range. Selection
of eight preset references via the digital terminals.
Pulse Reference
A signal transmitted to the digital inputs (terminal 29 or 33).
RefMAX
The maximum reference signalvalue. Setinpar. 3-03.
RefMIN
The minimum reference signal value. Set in par. 3-02.
Miscellaneous:
Analog Inputs:
The analog inputs are used for controlling various functions of the adjustable frequency drive.
There are two types of analog inputs:
Current input, 0-20 mA
Voltage input, 0-10 V DC.
Analog Outputs:
The analog outputs can supply a signal of 0-20 mA, 4-20 mA, or a digital signal.
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FC 300 Design Guide
How to Read this Design Guide
Automatic Motor Adaptation, AMA:
AMA algorithm determines the electrical parameters for the connected motor at standstill.
Brake Resistor:
The brake resistor is a module capable of absorbing the brake power generated in regenerative
braking. This regenerative braking energy increases the intermediate circuit voltage and a brake
chopper ensures that the power is transmitted to the brake resistor.
CT Characteristics:
Constant torque characteristics used for all applications such as conveyor belts and cranes.
Digital inputs:
The digital inputs can be used for controlling various functions of the adjustable frequency drive.
Digital Outputs:
The drive features two solid state outputs that can supply a 24 V DC (max. 40 mA) signal.
Relay Outputs
The drive features two programmable Relay Outputs.
Hiperface®
Hiperface®is a registered trademark by Stegmann.
Initializing:
If initializing is carried out (par. 14-22), the adjustable frequency drive returns to the default setting.
LCP:
The Local Control Panel (LCP) provides a complete interface for control and programming of the FC
300 Series. The control panel is detachable and can be installed up to 9.8 ft (3meters)fromthe
adjustable frequency drive, i.e. in a front panel by means of the installation kit option.
lsb:
Least significant bit.
MCM:
Short for Mille Circular Mil, an American measuring unit for cable cross-section.
1MCM≡0.00079 in.2(0.5067 mm2).
msb
Most significant bit.
On-line/Off-line Parameters:
Changes to on-line parameters are activated immediately after the data value is changed. Changes
to off-line parameters are not activated until you enter [OK] on the LCP.
Process PID:
The PID regulator maintains the desired speed, pressure, temperature, etc. by adjusting
the output frequency to match the varying load.
Pulse Input/Incremental Encoder:
An external, digital pulse transmitter used for feeding back information on motor speed. The encoder
is used in applications where great accuracy in speed control is required.
RCD:
Residual Current Device.
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FC 300 Design Guide
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Set-up:
You can save parameter settings in four set-ups. Change between the four parameter set-ups
and edit one set-up, while another set-up is active.
SFAVM
Switching pattern called S tator F lux oriented A synchronous V ector M odulation (par. 14-00).
Slip Compensation:
The adjustable frequency drive compensates for the motor slip by giving the frequency a
supplement that follows the measured motor load.
Thermistor:
A temperature-dependent resistor placed where the temperature is to be monitored
(adjustable frequency drive or motor).
Trip:
A state which occurs in different situations, i.e. DC link voltage is too high or too low, motor temperature is too
high, etc. A trip can be canceled by pressing reset or, in some cases, be programmed to reset automatically.
Trip Locked:
A state which occurs in different situations, i.e. short circuit of motor terminals, ground fault, etc. A
locked trip can be canceled by cutting off mains and restarting the adjustable frequency drive.
VT Characteristics:
Variable Torque characteristics used for pumps and fans.
VVCplus
If compared with standard voltage/frequency ratio control, Voltage Vector Control (VVCplus)improvesthe
dynamics and the stability, both when the speed reference is changed and in relation to the load torque.
60° AVM
Switching pattern called 60° A synchronous V ector M odulation (par. 14-00).
"Power Factor
The power factor is the relation between I1and IRMS.
The power factor for 3-phase control:
The power factor indicates to what extent
theadjustablefrequencydriveimposesa
load on the mains supply.
The lower the power factor, the higher the IRMS
for the same HP/kW performance.
In addition, a high power factor indicates that the different harmonic currents are low.
The FC 300 adjustable frequency drives’ built-in DC coils produce a high power factor,
which minimizes the imposed load on the mains supply.
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Introduction to FC 300
130BA140.10
FC 300
Design Guide
Software version: 2.0x
This Design Guide can be used for all FC 300 adjustable
frequency drives (AFD) with software version 2.0x.
The software version number can be seen from parameter
15-43.
"CE Conformity and Labeling
What is CE Conformity and Labeling?
The purpose of CE labeling is to avoid technical trade obstacles within EFTA and the EU. The EU
has introduced the CE label as a simple way of showing whether a product complies with the
relevant EU directives. The CE label says nothing about the specifications or quality of the product.
Adjustable frequency drives are regulated by three EU directives:
The machinery directive (98/37/EEC)
All machines with critical moving parts are covered by the machinery directive of January 1, 1995. Since an
adjustable frequency drive is largely electrical, it does not fall under the machinery directive. However, if
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Introduction to FC 300
an adjustable frequency drive is supplied for use in a machine, we provide information on safety aspects
relating to the adjustable frequency drive. We do this by means of a manufacturer’s declaration.
The low-voltage directive (73/23/EEC)
Adjustable frequency drives must be CE-labeled in accordance with the low-voltage directive of
January 1, 1997. The directive applies to all electrical equipment and appliances used in the
50 - 1000 V AC and the 75 - 1500 V DC voltage ranges. Danfoss CE-labels in accordance with
the directive and issues a declaration of conformity upon request.
The EMC directive (89/336/EEC)
EMC is short for electromagnetic compatibility. The presence of electromagnetic compatibility means that the
mutual interference between different components/appliances does not affect the way the appliances work.
The EMC directive came into effect January 1, 1996. Danfoss CE-labels in accordance with the directive and
issues a declaration of conformity upon request. To carry out EMC-correct installation, see the instructions in
this Design Guide. In addition, we specify which standards our products comply with. We offer the filters
presented in the specifications and provide other types of assistance to ensure the optimum EMC result.
The adjustable frequency drive is most often used by professionals 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 EMC properties of the appliance, system, or installation lies with theinstaller.
"What Is Covered
The EU "Guidelines on the Application of Council Directive 89/336/EEC" outline three typical situations
of using an adjustable frequency drive. See following for EMC coverage and CE labeling.
1. The adjustable frequency drive is sold directly to the end consumer. The adjustable frequency drive is
for example sold to a DIY market. The end consumer is a layman. He installs the adjustable frequency
drive himself for use with a hobby machine, a kitchen appliance, etc. For such applications, the
adjustable frequency drive must be CE-labeled in accordance with the EMC directive.
2. The adjustable frequency drive is sold for installation in a plant. The plant is built up by professionals of the
trade. It could be a production plant or a heating/ventilation plant designed and installed by professionals
of the trade. Neither the adjustable frequency drive nor the finished plant must be CE-labeled under the
EMC directive. However, the unit must comply with the basic EMC requirements of the directive. This is
ensured by using components, appliances, and systems that are CE-labeled under the EMC directive.
3. Theadjustablefrequencydriveissoldaspartofac
ompletesystem. Thesystemisbeingmarketed
as complete and could be e.g. an air conditioning system. ThecompletesystemmustbeCE-labeled
in accordance with the EMC directive. The manufacturer can ensure CE labeling under the EMC
directive either by using CE-labeled components or by testing the EMC of the system. If it chooses
to use only CE-labeled components, it does not have to test the entire system.
"Danfoss VLT Adjustable Frequency
Drive and CE Labeling
CE labeling is a positive feature when used for its original purpose, i.e. to facilitate trade within the EU and EFTA.
However, CE labeling may cover many different specifications. Thus, you must check
what a given CE label specifically covers.
The covered specifications can be very different and a CE label may therefore give the installer a false sense
of security when using an adjustable frequency drive as a component in a system or an appliance.
Danfoss CE labels the adjustable frequency drives in accordance with the low-voltage directive.
This means that if the adjustable frequency drive is installed correctly, we guarantee compliance
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FC 300 Design Guide
Introduction to FC 300
with the low-voltage directive. Danfoss issues a declaration of conformity that confirms our
CE labeling in accordance with the low-voltage directive.
The CE label also applies to the EMC directive provided that the instructions for EMC-correct installation and
filtering are followed. On this basis, a declaration of conformity in accordance with the EMC directive is issued.
The Design Guide offers detailed instructions for installation to ensure EMC-correct installation.
Furthermore, Danfoss specifies which our different products comply with.
Danfoss gladly provides other types of assistance that can help you obtain the best EMC result.
"Compliance with EMC Directive 89/336/EEC
As mentioned, the adjustable frequency drive is mostly used by professionals 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 EMC properties of the appliance, system, or installation lies with the installer.
As an aid to the installer, Danfoss has prepared EMC installation guidelines for the Power Drive System.
The standards and test levels stated for Power Drive Systems are complied with, provided that the
EMC-correct instructions for installation are followed, see section Electrical Installation.
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"Mechanical Build-Up
Illustration of the mechanical build-up of FC 300. The exact unit dimensions are listed in chapter How to Install.
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Introduction to FC 300
ACold plate technology
The adjustable frequency drive is built upon a very stable aluminum base integrated with the back
panel. This provides high mechanical stability, efficient cooling and the possibility of cold plate
operation. The cold plate serves as a flat cooling surface on the adjustable frequency drive, where a
majority of the heat losses dissipates from the electronics to an external cooling surface.
BDC coil
The built-in DC coil ensures low harmonic disturbance of the power supply according to IEC-1000-3-2.
CAir guiding shield
The shield allows cold air to pass by the electronics only. The plastic air guide shield is enclosed in
the package and is easily snapped in place. If the adjustable frequency drive is to operate as a
cold plate drive, the air guiding shield is inserted in the cooling channel through the bottom of the
drive if it is snapped onto the fan. Thus, the amount of heat transferred to the surroundings via the
cooling air from the fan is reduced.
DSnap-off fan
Like most of the elements, the fan can easily be removed for easy cleaning and remounted.
ESafe Stop
The adjustable frequency drive comes standard with the safe stop functionality for stop category 0
(EN 60204-1) with safety category 3 (EN 954-1) installations. This feature prevents the drive from
starting unintentionally.
FControl signals
Spring-loaded cage clamps contribute to reliability and facilitate easy commissioning and service.
GOptions
Options for bus communication, I/O extension etc. can be delivered or ordered built-in from the
factory. Options mounted under the LCP are referred to as option Slot A (top) and option Slot B
(bottom). Option C (see under K Freely programmable option is mounted on the side of the drive,
while option D is mounted underneath the control cable decoupling clamps.
HLocal Control Panel
The LCP 102 has a graphical user interface. Choose between six built-in languages (including Chinese)
or have it customized with your own languages and phrases. Two of the languages can be changed
by the user.
Additionally a simple version, LCP 101, is available with an alpha- numeric display. A complete
programming of FC 302 can be handled by both LCP’s.
JHot-pluggable LCP
The LCP can be plugged in or out during operation. Settings are easily transferred via the control panel
from one drive to another or from a PC with the MCT-10 set-up software.
"Air Humidity
The adjustable frequency drive has been designed to meet the IEC/EN 60068-2-3 standard,
EN 50178 pkt. 9.4.2.2 at 122 °F(50°C).
"Aggressive Environments
An adjustable frequency drive contains a large number of mechanical and electronic components.
All are to some extent vulnerable to environmental effects.
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Introduction to FC 300
The adjustable frequency drive should not be installed in environments with airborne
liquids,particles,orgasescapableofaffecting and damaging the electronic components.
Failure to take the necessary protective measures increases the risk of stoppages,
thus reducing the life of the adjustable frequency drive.
Liquids can be carried through the air and condense in the adjustable frequency drive and may cause
corrosion of components and metal parts. Steam, oil, and salt water may cause corrosion of components
and metal parts. In such environments, use equipment with enclosure rating IP 55 (NEMA 12). As
an extra protection, coated printed circuit boards can be ordered as an option.
Airborne Particles such as dust may cause mechanical, electrical, or thermal failure in the adjustable
frequency drive. A typical indicator of excessive levels of airborne particles is dust particles around
theadjustablefrequencydrivefan. Inverydusty environments, use equipment with enclosure rating
IP 55 (NEMA 12) or a cabinet for IP 00/IP 20/TYPE 1 (NEMA 1) equipment.
In environments with high temperatures and humidity, corrosive gases such as sulfur, nitrogen, and chlorine
compounds will cause chemical processes on the adjustable frequency drive components.
Such chemical reactions will rapidly affect and damage the electronic components. In
such environments, mount the equipment in a cabinet with fresh air ventilation, keeping
aggressive gases away from the adjustable frequency drive.
An extra protection in such areas is a coating of the printed circuit boards, which can be ordered as an option.
NOTE
Mounting adjustable frequency drives in aggressive environments increases the risk of
stoppages and considerably reduces the life of the drive.
Before installing the adjustable frequency drive, check the ambient air for liquids, particles, and gases.
This is done by observing existing installations in this environment. Typical indicators of harmful
airborne liquids are water or oil on metal parts, or corrosion of metal parts.
Excessive dust particle levels are often found on installation cabinets and existing electrical installations. One
indicator of aggressive airborne gases is blackening of copper rails and cable ends on existing installations.
"Vibration and Shock
The adjustable frequency drive has been
tested according to a procedure based on
the shown standards:
The adjustable frequency drive complies with
requirements that exist for units mounted on the
wallsandfloorsofproduc
tion premises, as well
as in panels bolted to walls or floors.
IEC/EN 60068-2-6: Vibration (sinusoidal) - 1970
IEC/EN 60068-2-64: Vibration, broad-band
random
"Control Principle
An adjustable frequency drive rectifies AC voltage from line into DC voltage, after which this DC
voltage is converted into an AC current with a variable amplitude and frequency.
The motor is supplied with variable voltage / current and frequency, which enables infinitely variable speed
control of three-phased, standard AC motors and permanent magnet synchronous motors.
18 MG.33.B3.22 - VLT is a registered Danfoss trademark

FC 300 Design Guide
Introduction to FC 300
"FC 300 Controls
The adjustable frequency drive is capable of controlling either the speed or the torque on the
motor shaft. Setting par. 1-00 determines the type of control.
Speed control:
There are two types of speed control:
•Speed open loop control which does not require any feedback.
•Speed closed-loop control in the form of a PID control that requires a speed feedback to an input. A
properly optimized speed closed-loop control will have higher accuracy than a speed open loop control.
Selects which terminal to use as speed PID feedback in par. 7-00.
Torque control:
Torque control is part of the motor control and correct settings of motor parameters are very
important. The accuracy and settling time of the torque control are determined from Flux
with motor feedback (par. 1-01 Motor Control Principle).
•Flux sensorless offers superior performance in all four quadrants at motor frequencies above 10 Hz.
•Flux with encoder feedback offers superior performance in all four quadrants and at all motor speeds.
The "Flux with encoder feedb" mode requires that an encoder speed feedback signal is
present. Select which terminal to use in par. 1-02.
Speed / torque reference:
The reference to these controls can either be a single reference or the sum of various references including
relatively scaled references. The handling of references is explained in detail later in this section.
19
MG.33.B3.22 - VLT is a registered Danfoss trademark

FC 300 Design Guide
Introduction to FC 300
"Control Structure in VVCplus
Control structure in VVCplus open loop and closed-loop configurations:
In the configuration shown in the illustration above, par. 1-01 Motor Control Principle is set to "VVCplus
[1]" and par. 1-00 is set to "Speed open loop [0]". The resulting reference from the reference handling
system is received and fed through the ramp limitation and speed limitation before being sent to the motor
control. The output of the motor control is then limited by the maximum frequency limit.
If par. 1-00 is set to "Speed closed-loop [1]", the resulting reference will be passed from
the ramp limitation and speed limitation into a speed PID control. The Speed PID control
parameters are located in the par. group 7-0*. The resulting reference from the Speed PID
control is sent to the motor control limited by the frequency limit.
Select "Process [3]" in par. 1-00 to use the process PID control for closed-loop control of e.g. speed
or pressure in the controlled application. The Process PID parameters are located in par. group
7-2* and 7-3*. Process PID is not available in this software release.
20 MG.33.B3.22 - VLT is a registered Danfoss trademark