Danfoss EC-C1700B-420 User manual

User Guide
Electrical converter
EC-C1700B-420
www.danfoss.com

Revision history Table of revisions
Date Changed Rev
June 2023 First edition 0101
User Guide
EC-C1700B-420
2 | ©Danfoss | June 2023 BC454142332191en-000101

General information 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
Safety information 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.............................................................................................................................................................................16
Product overview General specifications.................................................................................................................................................................. 18
Motor Control (+MC option, motor and generator control).....................................................................................20
Active Front End (+AFE option)...........................................................................................................................................21
Microgrid (+UG option)..........................................................................................................................................................22
Intended use of the electric device......................................................................................................................................... 23
System introduction..................................................................................................................................................................... 24
Cooling...............................................................................................................................................................................................24
Rating plate......................................................................................................................................................................................25
Tightening torques........................................................................................................................................................................26
Transportation and storage Transportation................................................................................................................................................................................ 27
Receiving and unpacking............................................................................................................................................................27
Lifting................................................................................................................................................................................................. 27
Handling............................................................................................................................................................................................28
Storage...............................................................................................................................................................................................28
Installation Required tools.................................................................................................................................................................................30
Insulation resistance test.............................................................................................................................................................30
Mechanical installation................................................................................................................................................................32
Allowed mounting position..................................................................................................................................................32
Installation procedure.............................................................................................................................................................34
Cooling connections............................................................................................................................................................... 37
Recommended coolants........................................................................................................................................................37
Electrical installation.....................................................................................................................................................................38
Electrical connections.............................................................................................................................................................38
Grounding...................................................................................................................................................................................44
Cable gland assembly and power line connection......................................................................................................45
Cabling and wiring...................................................................................................................................................................53
High voltage connections..................................................................................................................................................... 54
Low voltage connections.......................................................................................................................................................55
Operation Operation conditions....................................................................................................................................................................61
Pre-charging.................................................................................................................................................................................... 61
Condition monitoring during operation...............................................................................................................................61
Maintenance Regular maintenance................................................................................................................................................................... 63
Cooling system maintenance....................................................................................................................................................64
Cleaning............................................................................................................................................................................................ 64
User Guide
EC-C1700B-420
Contents
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Dismounting and disposal of the electric device
Troubleshooting
Aftersales Service policy...................................................................................................................................................................................70
Service parts.....................................................................................................................................................................................70
User Guide
EC-C1700B-420
Contents
4 | ©Danfoss | June 2023 BC454142332191en-000101

Intended use of the user guide
This user guide contains the installation, operation and maintenance instructions for the EC-C1700B-420
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.
Product naming convention
In this user guide, the EC-C1700B-420 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-C1700B-420-L-SW11+MC/+AFE/+UG
The rating plate of the electric device has the correct name of that particular electric device.
Part of the name Explanation
EC Electric Converter
C1700B Product name part 1
420 Product name part 2
L Hardware variant
SW11 Software version
+MC* Motor Control software -option
+AFE* Active Front End software -option
+UG* Microgrid (µgrid) software -option
*Followed with number that represents the nominal current (ARMS): 95, 130, 175, 210. These options are
available on the same electric device or alone.
Options are presented in the Table below. Standard options are indicated by a star (*).
EC-C1700B-420 options
Variant Code Description Additional information
Hardware variant -L Device internal components Definition for isolation
resistance, discharge
resistor and y-capacitance
sizing
Software version -SW11 Software version 11.x Software version of the unit
is the latest version of 11-
series software
User Guide
EC-C1700B-420
General information
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EC-C1700B-420 options (continued)
Variant Code Description Additional information
Control +MC95 Motor control, current limit 95 A Converter for motor/
generator applications
+MC130 Motor control, current limit 130 A Converter for motor/
generator applications
+MC175 Motor control, current limit 175 A Converter for motor/
generator applications
+MC210 Motor control, current limit 210 A Converter for motor/
generator applications
+AFE95 Active front end, current limit 95 A Converter for active front
end applications
+AFE130 Active front end, current limit 130 A Converter for active front
end applications
+AFE175 Active front end, current limit 175 A Converter for active front
end applications
+AFE210 Active front end, current limit 210 A Converter for active front
end applications
+UG95 Microgrid, current limit 95 A Converter for microgrid
applications
+UG130 Microgrid, current limit 130 A Converter for microgrid
applications
+UG175 Microgrid, current limit 175 A Converter for microgrid
applications
+UG210 Microgrid, current limit 210 A Converter for microgrid
applications
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 +CG4)
User Guide
EC-C1700B-420
General information
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EC-C1700B-420 options (continued)
Variant Code Description Additional information
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)
+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)
Marine classification * No marine classification
+CL1 ABS American Bureau of
Shipping
+CL2 BV Bureau Veritas
+CL3 DNV
+CL4 LR Lloyd’s Register
+CL5 RINA
+CL6 CCS China Classification
Society
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
Isolation measurement resistance, DC-link discharge resistor and Y-capacitor values are shown in the
Figure and Table below.
User Guide
EC-C1700B-420
General information
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System schematics
System component values
System option Component Value
-L Resistors R1 and R2 (isolation measurement) 240 MΩ
Resistor R3 (discharge) 68 kΩ
Capacitors C1 and C2 (Y-capacitors) 3.3 nF
Capacitor C3 0.55 mF
Isolation resistance from DC-link to enclosure 120 MΩ
User Guide
EC-C1700B-420
General information
8 | ©Danfoss | June 2023 BC454142332191en-000101

Connection options
Color coding
Color Meaning
Gray Cable glands for phases
Red Cable glands for DC+
Black Cable glands for DC-
User Guide
EC-C1700B-420
General information
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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
rating of between 50 and 1000 V for alternating current.
The electromagnetic compatibility
(EMC) Directive 2014/30/EU EMC directive ensures that electrical and electronic equipment does not generate, or is affected by, electromagnetic disturbance.
EN 61800-5-1: 2007 Adjustable speed electrical power drive systems - Part 5-1: Safety
requirements - Electrical, thermal and energy.
EN ISO 13766-1:2018 Construction machinery. Electromagnetic compatibility of machines with
internal electrical power supply – Part 1: General EMC requirements under
typical electromagnetic environmental conditions.
UNECE R10 Revision 6 Uniform provisions concerning the approval of vehicles with regard to
electromagnetic compatibility.
Compliant with:
•Immunity to surge on DC power lines
•Immunity to EFT on DC power lines
•Immunity to conducted transients
•Immunity to electromagnetic radiation
•Conducted emissions on network and telecommunication access
•Conducted transient emissions
•Radiated broadband and narrowband emissions
Warranty
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, non-
execution 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.
Terms and abbreviations
Following symbols, terms and abbreviations may exist in this user guide.
Term/ Abbreviation Explanation
AC Alternating current
DC Direct current
EMC Electromagnetic compatibility
EMI Electromagnetic interference
GND Ground in electrical connections
User Guide
EC-C1700B-420
General information
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Term/ Abbreviation Explanation
HV High voltage
I/O Input / Output
LV Low voltage
MCB Miniature circuit breaker
RCD Residual current device
Symbol Variable Unit
UDC DC link voltage V
Uac AC output voltage V
InRated current Arms
PnRated power kW
fin/out Input / Output frequency Hz
fswitch Switching frequency kHz
Ipeak Overcurrent limit A
QcRated coolant liquid flow l/min
TcRated coolant liquid input
temperature °C
Tamb Rated ambient temperature °C
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.
User Guide
EC-C1700B-420
General information
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General safety statement
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
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.
User Guide
EC-C1700B-420
Safety information
12 | ©Danfoss | June 2023 BC454142332191en-000101

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.
User Guide
EC-C1700B-420
Safety information
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Safety features
Protection type Built-in Information
Overvoltage Yes 1300 VDC
Short circuit Yes -
Overspeed (+MC -option only) Yes Adjustable according to controlled
motor
Overheat (electric device internal
temperature) Yes Sophisticated thermal model that can lower the current if needed
Emergency stop Yes Hardware secured device switch OFF
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:
•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.
User Guide
EC-C1700B-420
Safety information
14 | ©Danfoss | June 2023 BC454142332191en-000101

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.
Installation safety
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.
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.
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.
User Guide
EC-C1700B-420
Safety information
©Danfoss | June 2023 BC454142332191en-000101 | 15

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.
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.
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.
User Guide
EC-C1700B-420
Safety information
16 | ©Danfoss | June 2023 BC454142332191en-000101

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.
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.
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.
User Guide
EC-C1700B-420
Safety information
©Danfoss | June 2023 BC454142332191en-000101 | 17

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 it can create a microgrid (+UG option).
The advantages and features of the electric device:
•Extremely compact structure, weight only 14 kg.
•Robust design withstanding high levels of mechanical vibrations and shocks.
•High protection class IP67 ensuring operation in extreme conditions.
•Wide ambient operating temperature range from -40°C...+85°C.
•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.
•High performance vector control.
•Wide selection of protective safety functions.
These electric devices are designed for variety of applications:
•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 +AFE and +UG options require an external LCL-filter unit or a transformer and LC-filter
combination.
User Guide
EC-C1700B-420
Product overview
18 | ©Danfoss | June 2023 BC454142332191en-000101

Main components
1 X1-connector (Low voltage connector for measurement data and control signals)
2 X2-connector (maintenance connector)
3 DC+
4 DC-
5 L3
6 L2
7 L1
User Guide
EC-C1700B-420
Product overview
©Danfoss | June 2023 BC454142332191en-000101 | 19

Electric device power connection diagram
Protections and limits for options:
The options for EC-C1700B-420 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 Apeak (reaction time <15µs). In most cases, the hardware overcurrent trip protects the device also
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 3810 Apeak (self-limiting, reaction time <2µs).
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 •Synchronous permanent magnet motors
•Asynchronous induction motors
•Special features to control Danfoss synchronous reluctance assisted permanent
magnet motors.
Control principle •Rotor flux oriented current vector control
Reference types •Torque reference motor control
•Speed reference motor control
•Generator control mode for regulating the DC-link voltage
User Guide
EC-C1700B-420
Product overview
20 | ©Danfoss | June 2023 BC454142332191en-000101