Danfoss EC-C1200-450 User guide
User Guide
Electrical converter
EC-C1200-450
www.danfoss.com
User Guide
EC-C1200-450
Revision history Table of revisions
Date Changed Rev
July 2021 Updated user guide 0201
2 | © Danfoss | July 2021 BC265735231757en-000201
User Guide
EC-C1200-450
Contents
General information
Safety information
Product overview
Transportation and storage
Installation
Operation
Maintenance
Intended use of the user guide................................................................................................................................................... 5
Product naming convention........................................................................................................................................................ 5
Connection options....................................................................................................................................................................9
Conformity according to standards........................................................................................................................................ 10
Warranty............................................................................................................................................................................................10
Terms and abbreviations.............................................................................................................................................................10
Responsibility of the manufacturer.........................................................................................................................................11
General safety statement............................................................................................................................................................12
Safety message signal words.....................................................................................................................................................12
Safety symbols................................................................................................................................................................................ 12
Personal protective equipment................................................................................................................................................13
Safety features.................................................................................................................................................................................14
Electromagnetic compatibility (EMC).....................................................................................................................................14
Installation safety...........................................................................................................................................................................15
Operation safety.............................................................................................................................................................................17
General specifications.................................................................................................................................................................. 19
Motor Control (+MC option, motor and generator control).....................................................................................21
Active Front End (+AFE option)...........................................................................................................................................22
Microgrid (+UG option)..........................................................................................................................................................23
DCDC converter (+DC option)............................................................................................................................................. 24
Intended use of the electric device......................................................................................................................................... 25
System introduction..................................................................................................................................................................... 26
Cooling...............................................................................................................................................................................................27
Rating plate......................................................................................................................................................................................27
Tightening torques........................................................................................................................................................................28
Transportation................................................................................................................................................................................ 29
Receiving and unpacking............................................................................................................................................................29
Lifting................................................................................................................................................................................................. 29
Handling............................................................................................................................................................................................30
Storage...............................................................................................................................................................................................30
Required tools.................................................................................................................................................................................32
Mechanical installation................................................................................................................................................................32
Allowed mounting position..................................................................................................................................................32
Installation procedure.............................................................................................................................................................34
Cooling connections............................................................................................................................................................... 37
Recommended coolants........................................................................................................................................................38
Electrical installation.....................................................................................................................................................................38
Electrical connections............................................................................................................................................................. 38
Grounding...................................................................................................................................................................................43
Cable gland assembly and power line connection...................................................................................................... 44
Cabling and wiring...................................................................................................................................................................52
High voltage connections..................................................................................................................................................... 52
Low voltage connections.......................................................................................................................................................54
Operation conditions....................................................................................................................................................................60
Pre-charging.................................................................................................................................................................................... 60
Condition monitoring during operation...............................................................................................................................61
Regular maintenance................................................................................................................................................................... 62
Cooling system maintenance....................................................................................................................................................63
Cleaning............................................................................................................................................................................................ 63
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User Guide
EC-C1200-450
Contents
Dismounting and disposal of the electric device
Troubleshooting
Aftersales
Service policy...................................................................................................................................................................................69
Service parts.....................................................................................................................................................................................69
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User Guide
EC-C1200-450
General information
Intended use of the user guide
Product naming convention
This user guide contains the installation, operation and maintenance instructions for the EC-C1200-450
electrical converter.
This user guide contains instructions necessary to safely and properly handle, install and maintain the
electric device. They should be brought to the attention of anyone who installs or maintains the electric
device or associated equipment.
All of the safety warnings and instructions in this user guide must be followed to prevent injury to
personnel or damage to property. Only qualified and authorized personnel, familiar with health and
safety requirements and national legislation, shall be permitted to handle, install and maintain the
device.
This user guide must be kept for future reference during installation, operation and maintenance.
This user guide uses illustrations as examples only. Illustrations in this user guide may not necessarily
reflect all system features.
In this user guide, the EC-C1200-450 electric converter is referred to as the electric device.
The following naming convention is used to refer to electric device type code and options:
•
EC-C1200-450-L+MC/+AFE/+UG/+DC
The rating plate of the electric device has the correct name of that particular electric device.
Part of the name Explanation
EC Electric Converter
C1200 Product name part 1
450 Product name part 2
L/S System size
+MC* Motor Control software -option
+AFE* Active Front End software -option
+UG* Microgrid (µgrid) software -option
+DC** DCDC-converter software -option
*Followed with number that represents the nominal current (A
): 120, 180, 240, 300, 350. These
RMS
options are available on the same electric device or alone.
**Followed with number that represents the nominal current (ADC): 150, 250, 300, 400. This option is not
available with other options.
Options are presented in the Table below. Standard options are indicated by a star (*).
EC-C1200-450 options
Variant Code Description Additional information
System size -S Small system Default EC-C unit for
individual or small system
installations
-L Large system EC-C unit for large system
installations
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User Guide
EC-C1200-450
General information
EC-C1200-450 options (continued)
Variant Code Description Additional information
Control +MC70 Motor control, current limit 70 A Converter for motor/
generator applications
+MC120 Motor control, current limit 120 A Converter for motor/
+MC180 Motor control, current limit 180 A Converter for motor/
+MC240 Motor control, current limit 240 A Converter for motor/
+MC300 Motor control, current limit 300 A Converter for motor/
+MC350 Motor control, current limit 350 A Converter for motor/
+AFE70
+AFE120 Active front end, current limit 120 A Converter for active front
+AFE180 Active front end, current limit 180 A Converter for active front
+AFE240 Active front end, current limit 240 A Converter for active front
+AFE300 Active front end, current limit 300 A Converter for active front
+AFE350 Active front end, current limit 350 A Converter for active front
+UG70 Microgrid, current limit 70 A Converter for microgrid
+UG120 Microgrid, current limit 120 A Converter for microgrid
+UG180 Microgrid, current limit 180 A Converter for microgrid
+UG240 Microgrid, current limit 240 A Converter for microgrid
+UG300 Microgrid, current limit 300 A Converter for microgrid
+UG350 Microgrid, current limit 350 A Converter for microgrid
+DC150 DCDC control, current limit 150 ADC Converter for DC/DC
+DC250 DCDC control, current limit 250 ADC Converter for DC/DC
+DC300 DCDC control, current limit 300 ADC Converter for DC/DC
+DC400 DCDC control, current limit 400 ADC Converter for DC/DC
Speed option * Normal speed version (<580 Hz output
+HS High speed version (>580 Hz output
Active front end, current limit 70 A
frequency)
frequency)
generator applications
generator applications
generator applications
generator applications
generator applications
Converter for active front
end applications
end applications
end applications
end applications
end applications
end applications
applications
applications
applications
applications
applications
applications
applications
applications
applications
applications
EC-C with motor/generator
control firmware, capable
of speeds below 580 Hz
EC-C with motor/generator
control firmware, capable
of speeds up to 1000 Hz
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EC-C1200-450
General information
EC-C1200-450 options (continued)
Variant Code Description Additional information
Communication * CAN1939 EC-C with Standard
SAE1939-communication
+CO CANopen EC-C with CANopen-
communication
Connections * Normal connections EC-C with default HV
connections
+CE1 Connection extension 1 EC-C with double DC and
AC connectivity with
connection extension box 1
(double M25 cable gland
threads) (Not compatible
with +DCE option)
+CE2 Connection extension 2 EC-C with M32 cable gland
threads on AC connection
with connection extension
box 2 (choose also +DCE if
double DC connection is
required)
+DCE DC-extension EC-C with double DC-
connections: copper
bushings for double
connection (compatible
with +CE2/+CG4/+CG5)
Cable glands * No cable glands EC-C with no cable glands
or plugs
+CG1 Default M25 cable glands EC-C with 5x M25 cable
glands and 2x M25 plugs
+CG2 Default M25/M32 cable glands EC-C with 2x M25 cable
glands, 3xM32 cable glands
and 3xM25 plugs (for +CE2
option)
+CG3 Default M25 cable glands EC-C with 10x M25 cable
glands (for +CE1 option
with double DC-link
connections)
+CG4 Default M25 cable glands EC-C with 7x M25 cable
glands (for +DCE option)
+CG5 Default M25/M32 cable glands EC-C with 4x M25 cable
glands, 3xM32 cable glands
and 3xM25 plugs (for
combined +CE2 and +DCE
options)
+CG6 Default M25 cable glands EC-C with 8x M25 cable
glands and 2x M25 plugs
(for +CE1 option with single
DC-link connections)
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User Guide
EC-C1200-450
General information
EC-C1200-450 options (continued)
Variant Code Description Additional information
Marine classification * No marine classification
+CL1 ABS American Bureau of
Shipping
+CL2 BV Bureau Veritas
+CL3 DNV
+CL4 LR Lloyd’s Register
+CL5 RINA
Customer specific * Default unit firmware-wise EC-C with no pre-set
parameters or application
+CS Customer specific parameters or
application in FW
EC-C with separately
specified application
and/or parameters
Electric device has option for small systems (S) and large systems (L). Small system option is typical for
vehicle applications and large system option is standard in marine applications because of the marine
regulations. Complete system should be looked when choosing the option as for example vehicle system
with many devices could also need the L-option to keep the isolation resistance or Y-capacitors at
reasonable level. In large and small system options, there are differences in the isolation measurement
resistance, DC-link discharge resistor and Y-capacitor values as shown in the Figure and Table below.
S- and L-systems schematics
S- and L-system component values
System option Component Value
Small (S) Resistors R1 and R2 (isolation measurement) 12 MΩ
Resistor R3 (discharge) 3.9 kΩ
Capacitors C1 and C2 (Y-capacitors) 330 nF
Capacitor C3 1 mF
Isolation resistance from DC-link to enclosure 6 MΩ
Large (L) Resistors R1 and R2 (isolation measurement) 240 MΩ
Resistor R3 (discharge) 39 kΩ
Capacitors C1 and C2 (Y-capacitors) 3.3 nF
Capacitor C3 1 mF
Isolation resistance from DC-link to enclosure 120 MΩ
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User Guide
EC-C1200-450
General information
Connection options
Color coding
Color Meaning
Gray Cable glands for phases
Red Cable glands for DC+
Black Cable glands for DC-
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User Guide
EC-C1200-450
General information
Conformity according to standards
The electric device has been designed in accordance with the essential parts of the following directives
and to meet the requirements of the standards:
Applicable directives and standards
Directives / Standards Explanation
Low Voltage Directive 2014/35/EU Electrical equipment means any equipment designed for use with a voltage
The electromagnetic compatibility
(EMC) Directive 2014/30/EU
IEC/EN 61800-5-1: 2007 Adjustable speed electrical power drive systems - Part 5-1: Safety
EN 13766-1:2018 Construction machinery. Electromagnetic compatibility of machines with
UN Regulation No. 10 Revision 4 and
Revision 5
Warranty
rating of between 50 and 1000 V for alternating current.
EMC directive ensures that electrical and electronic equipment does not
generate, or is affected by, electromagnetic disturbance.
requirements - Electrical, thermal and energy.
internal electrical power supply.
Uniform provisions concerning the approval of vehicles with regard to
electromagnetic compatibility.
Terms and abbreviations
Danfoss offers warranty against defects in workmanship and materials for its products for a period of
twelve (12) months from commissioning or eighteen months (18) from delivery (Incoterms-EXW),
whichever occurs first.
In order for the warranty to be valid, the customer must follow the requirements of this and all related
documents, especially those set out in the product installation and maintenance documents, as well as
the applicable standards and regulations in force in each country.
Defects arising from the improper or negligent use, operation, and/or installation of the equipment, nonexecution of regular preventive maintenance, as well as defects resulting from external factors or
equipment and components not supplied/recommended by Danfoss, will not be covered by the
warranty.
The warranty will not apply if the customer at its own discretion makes repairs and/or modifications to
the equipment without prior written consent from Danfoss.
Following symbols, terms and abbreviations may exist in this user guide.
Term/ Abbreviation Explanation
AC Alternating current
DC Direct current
MCB Miniature circuit breaker
EMC Electromagnetic compatibility
EMI Electromagnetic interference
Symbol Variable Unit
U
DC
U
ac
I
n
P
n
f
in/out
f
switch
DC link voltage V
AC output voltage V
Rated current A
Rated power kW
Input / Output frequency Hz
Switching frequency kHz
rms
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EC-C1200-450
General information
Symbol Variable Unit
I
peak
Q
c
T
c
T
amb
GND Ground in electrical connections
R Resistance Ω
Responsibility of the manufacturer
Danfoss is responsible for the safety, reliability and performance of the electric device only if:
Handling, mounting, installation, operation and maintenance are carried out by qualified and
•
authorized service personnel.
The installation of the system complies with the requirements of the appropriate regulations.
•
The electric device is used in accordance with the instructions in this user guide.
•
The electric device is installed, maintained and serviced in accordance with the instructions in this
•
user guide.
Overcurrent limit A
Rated coolant liquid flow l/min
Rated coolant liquid input
temperature
Rated ambient temperature °C
°C
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EC-C1200-450
Safety information
General safety statement
Safety message signal words
The electric device is intended for use as a component for industrial and commercial installations. The
end product containing the electric device must conform with all related regulations.
The use of the electric device is prohibited in hazardous areas unless it is expressly designed for such use.
The electric device is intended for installation, use and maintenance by qualified personnel, familiar with
health and safety requirements and national legislation. Ignoring these instructions may invalidate all
applicable warranties.
These instructions must be followed to ensure safe and proper installation, operation and maintenance
of the electric device. They should be brought to the attention of anyone who installs, operates or
maintains the electric device or associated equipment.
High voltage and rotating parts can cause serious or fatal injuries. For the electric device covered by this
user guide, it is important to observe safety precautions to protect personnel from possible injury.
Safety message signal words indicate the severity of a potential hazard.
DANGER Indicates an imminently hazardous situation which, if not avoided, will result in death or serious
injury.
WARNING Indicates a potentially hazardous situation which, if not avoided, could result in death or
serious injury.
CAUTION Indicates a potentially hazardous situation which, if not avoided, may result in minor or
moderate injury. CAUTION may also alert against unsafe practices
NOTICE Indicates a potentially hazardous situation which, if not avoided, could result in property
damage.
Safety symbols
The following safety and information related symbols may exist in this user guide and on the electric
device.
Danger
This symbol is identified by a yellow background, red octagonal band and a black
STOP text. It indicates a hazardous situation that causes severe injury or death.
Action indicated by this symbol may not be executed.
General warning
This symbol is identified by a yellow background, black triangular band, and a black
exclamation point symbol. It indicates a general potentially hazardous situation.
Electric shock warning
The symbol is identified by a yellow background, black triangular band, and a black
arrowhead symbol. It indicates dangerous electrical voltage that could cause an
electric shock to a person.
Burn warning
The symbol is identified by a yellow background, black triangular band, and a black
wavy lines- symbol. It indicates a hot device that could cause burns to a person.
The symbol also indicates that the device should be placed and installed so that
contact with its potentially hot surface is not possible.
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EC-C1200-450
Safety information
Magnet warning
The symbol is identified by a yellow background, black triangular band, and a black
magnet symbol. It indicates strong magnetic field that could cause harm to a person
or property.
Poison warning
The symbol is identified by a yellow background, black triangular band, and a skull
and crossbones symbol. It indicates a poisonous substance that could kill or cause an
injury to a person.
Electric shock warning - Read the instructions in the user guide.
General Information.
Read the instructions in the manual.
Personal protective equipment
Personal protective equipment shall be used when necessary during handling, installation and
maintenance of the electric device to avoid injury.
Use eye protective equipment like safety goggles or mask when you work with the electric
device. Permanent damage to the eye could be caused if bearing grease, melted nitrile rubber
(radial lip seal), glycol or other fluids splash.
Use hearing protective equipment when you work on the electric device. Hearing injuries can
be caused by too loud noise (noise in excess of 85 dBA).
Use head protective equipment like helmet when you lift the electric device! Head injuries can
be caused by object impact.
Use cut resistant gloves when you handle and maintain the electric device. There is a risk of
cut injuries.
Use protective footwear when you lift or move the electric device! Foot injuries could be
caused if lifting system or lifting brackets fail.
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User Guide
EC-C1200-450
Safety information
Safety features
Protection type Built-in Information
Overcurrent Yes 750 A
Overvoltage Yes
Short circuit Yes Overspeed (+MC -option only) Yes Adjustable according to controlled
Overheat (electric device internal
temperature)
Emergency stop Yes Hardware secured device switch OFF
Yes Sophisticated thermal model that can
peak
1050 V
DC
motor
lower the current if needed
feature
In addition to the electrical protection features, the electric device has mechanical safety feature, a
connector shield, which prevents direct entry to the power terminals, when the electric device is
powered ON. The connector shield is a sheet metal component, which secures the power terminal cover
and it cannot be released without disconnecting the control signal connector (X1-connector) first. When
X1-connector is disconnected, it shuts down the electric device and starts electrical energy discharging
process.
Connector shield (mechanical safety feature)
Electromagnetic compatibility (EMC)
When interfacing other equipment, connect only equipment that are specified as part of the
system and that are compatible.
Magnetic and electromagnetic fields generated near the current-carrying conductors and
permanent magnets in electric machines represent a health danger to persons with heart
pacemakers, metal implants and hearing aids. Persons with a heart pacemaker, metal
implants or hearing aids must consult a doctor before they enter the following areas:
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EC-C1200-450
Safety information
Installation safety
•
Areas in which electric equipment and parts are operated
•
Areas in which electric equipment with permanent magnets are stored, mounted,
operated or repaired
If necessary, perform a special electromagnetic compatibility (EMC) test on the installation.
EMC stands for Electromagnetic compatibility. It is the ability of electric equipment to operate without
problems within an electromagnetic environment. Likewise, the equipment must not disturb or interfere
with any other product or system within its locality. This is a legal requirement for all equipment taken
into service within the European Economic Area (EEA).
Our products are designed with high standards of EMC in mind. Connect the power lines and groundings
along the instructions in this user guide to achieve the required level of EMI protection.
It is the responsibility of the installer to make sure that the equipment or system into which the product is
incorporated complies with the EMC legislation of the country of use. Within the European Union,
equipment into which this product is incorporated must comply with the EMC Directive 2014/30/EU.
Only trained and qualified personnel familiar with the relevant safety requirements can
install the electric device. If the electric device is installed incorrectly it may lead to safety
hazard.
Do not do any flash tests or voltage withstand tests on the electric device. If electrical tests or
measurements are required, do the tests with the electric device disconnected and stored
energy discharged.
Disconnect and isolate the electric device before you start any work on it. High voltages are
present at the terminals and within the inverter. Passive discharging of the DC-link capacitor
is done by the bleeder-resistor. Discharging below 50 Volts is completed within 8 minutes
after the power is disconnected. Make sure that voltage is not present on any inverter power
terminals prior you start any work on it.
Make sure of correct grounding connections. Do not run the electric device without correctly
attached protective earth conductor. The grounding cable must be sufficient to carry the
maximum supply fault current which is normally limited by the fuses or Miniature Circuit
Breaker (MCB). Suitably rated fuses or MCB should be fitted in the mains supply of the electric
device, by the local legislation and recommendations.
Use only correct (type and value) protective fuses with the high voltage DC-system.
Do not do any work on the electric device control cables when the power is applied to the
electric device or to the external control circuits.
The control input functions of the electric device – for example stop/start must be secured
using independent channel protection in safety critical applications. All applications where
malfunction could cause injury or loss of life must be subject to a risk assessment and improve
control signal protection if needed.
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User Guide
EC-C1200-450
Safety information
The electric device can start at power up if the start- input signal is present.
The STOP function does not remove potentially lethal high voltages. Isolate the electric
device and wait for 8 minutes before you start any work with it. Never do any work on the
electric device, external devices or electric cables if the input power is connected to the
electric device.
Do not activate the automatic fault reset function on any system, where this may cause a
potentially dangerous situation. Reason for every fault situation should be determined
before resetting the fault.
Make sure that the supply voltage corresponds to the specification of the electric device.
Do not attempt to repair the electric device. In the case of suspected fault or malfunction,
contact Danfoss or Danfoss authorized service center for further assistance.
When you install the electric device, make sure that the cooling system and the used coolant
meet the specifications of the manufacturer. Make sure that the cooling system is in use when
the DC-link is powered.
If the control cabling is installed close with the power cabling, make sure that minimum
separation distance is 100 mm and crossings are at 90 degrees. Make sure that all terminal
connections are tightened correctly by the instructions.
Electric device must not be opened (excluding the connection box lid). Any attempt causes
loss of warranty.
Within the European Union, all machinery in which this product is used must comply with
Directive 98/37/EC, Safety of Machinery. In particular, the machine manufacturer is
responsible for providing a main switch and ensuring the electrical equipment complies with
EN60204-1.
Use correct personal protective equipment when you are near the electric device.
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Safety information
Read the instructions in this user guide before you start to install the electric device.
Operation safety
Do not use the electric device without correctly dimensioned and operating cooling system.
Maximum operation temperature must not be exceeded to avoid permanent damage to the
electrical device.
The requirements of this user guide and other related instructions and standards must be
followed.
Make sure that the cooling system is in use when the DC-link is powered.
Do not touch the electric device during operation. The surface of the electric device can be
hot.
This electric device is intended for professional use as complete equipment or system and as
part of a fixed installation. The electric device uses high voltages and currents, and it has
large amounts of stored electrical energy. Close attention is required to system design and
electrical installation to avoid hazards in either normal operation or in the event of
equipment malfunction.
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EC-C1200-450
Safety information
The electric device can only be used in the applications it is intended for. The rated nominal
values and operational conditions are shown in the rating plate.
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EC-C1200-450
Product overview
General specifications
Electric device
The electric device is a heavy-duty converter designed especially for electric or hybrid drive trains for
mobile work machines, buses or marine vessels. Depending on the options selected, it can act as a motor
inverter (+MC option), active front end (+AFE option) or a DCDC-converter (+DC option), or it can create a
microgrid (+UG option).
The advantages and features of the electric device:
•
Extremely compact structure, weight only 15 kg.
•
Robust design withstanding high levels of mechanical vibrations and shocks.
•
High protection class IP67 ensuring operation in extreme conditions.
•
Wide ambient temperature range from -40 ºC...105 ºC.
•
Liquid cooling.
•
Wide allowed coolant temperature range.
•
Multiple mounting possibilities.
•
Designed especially for highly cyclical loads typical in heavy mobile work machines.
•
Controls both induction and permanent magnet motors with or without sensor.
•
Speed and torque reference motor control.
•
Generator control mode for DC-link voltage control.
•
Flexible control interface –CAN, resolver, analog, digital inputs/outputs.
•
PowerUSER PC-program for commissioning available.
•
Various communication protocols, for example CANopen, SAE J-1939.
•
Possibility to create customer specific applications with CODESYS (IEC61131-3) software tool.
•
High performance vector control.
•
Wide selection of protective safety functions.
These electric devices are designed for variety of applications:
•
Boosting battery voltage to higher DC-link voltage. (+DC option)
•
Charging high voltage batteries from higher DC-link voltage. (+DC option)
•
Converting alternating current (AC) from electrical generator to direct current (+MC option) for
energy storage
•
Active Front End for connecting to AC grid with regenerative power and low harmonic. (+AFE option)
•
Creating standalone microgrid (+UG option)
Note that +DC option functions together with an EC-LTS unit which is sold separately.
Note also that +AFE and +UG options require an external LCL-filter unit or a transformer and LC-filter
combination.
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3
4
5
6
7
8
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User Guide
EC-C1200-450
Product overview
Main components
1 X1-connector (Low voltage connector for measurement data and control signals)
2 EC-C unit
3 X2-connector (maintenance connector)
4 DC+
5 DC- / LV6 Electric device cooling connections 2 x 20mm
7 LV3
8 LV2
9 LV1
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EC-C1200-450
Product overview
Electric device power connection diagram
Protections and limits for options:
The options for EC-C1200-450 have certain protections and limits that affect their function. The difference
between protections and limits is that protections stop all high voltage functions of the electric device
immediately, whereas limits only limit the functions instead of stopping them.
Overcurrent and short circuit trips protect the device from overcurrent and short circuits on the AC side
of the device. First protection is a configurable software based overcurrent trip, where the trip level can
be set by the user. Second protection is a hardware based overcurrent trip with fixed trip current level of
750 A
(reaction time <15µs). In most cases, the hardware overcurrent trip protects the device also
peak
from short circuits. In case even the hardware overcurrent trip fails, the final protection is a short circuit
trip that has maximum current value of 2700 A
(self-limiting, reaction time <2µs).
peak
In the following Sections, the protections and limits are listed for each option.
Motor Control (+MC option, motor and generator control)
Motor control option is used to control the speed and torque of electrical machines and also converting
alternating current (AC) from electrical generator to direct current (DC) for energy storage.
Motor Control application example
Motor Control characteristics
Controllable motor types
Control principle
•
Synchronous permanent magnet motors
•
Asynchronous induction motors
•
Special features to control Danfoss synchronous reluctance assisted permanent
magnet motors.
•
Rotor flux oriented current vector control
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EC-C1200-450
Product overview
Motor Control characteristics (continued)
Reference types
Field weakening control
Working point
optimization
•
Torque reference motor control
•
Speed reference motor control
•
Generator control mode for regulating the DC-link voltage
•
Maximizes the field weakening performance by optimizing the use of inverter
current and torque production capability of the motor.
•
Maximum torque per ampere working point optimization is used to improve
efficiency of the motor.
Motor Control protections and limits
Protections
Software overcurrent trip (configurable)
Hardware overcurrent trip (Fixed 750 Apeak, AC-side)
Short circuit trip
Software overvoltage trip (configurable)
Hardware overvoltage trip (Fixed 1050 VDC, DC-link voltage)
Inverter overtemperature trip (measured)
Inverter overtemperature trip (estimated)
Electric machine temperature surveillance and trip (configurable)
Over speed trip (configurable)
Undervoltage trip (configurable, DC-link voltage)
Earth fault trip
Phase loss trip
Limits
Speed limit positive
Speed limit negative
Torque limit positive
Torque limit negative
Mechanical power limit positive (motoring)
Mechanical power limit negative (generating)
DC current limit positive (motoring)
DC current limit negative (generating)
Overvoltage controller (DC-link voltage)
Undervoltage controller (DC-link voltage)
Electric machine configurable derating according to winding temperature
Back-emf max. value limit
Active Front End (+AFE option)
Active Front End is used for connecting to AC grid with regenerative power and low harmonic. In
addition, it is used for bidirectional connection to AC grids.
22 | © Danfoss | July 2021 BC265735231757en-000201
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