Lenze EMF2181IB User Manual
EDSMF2181IB
.OqR
Ä.OqRä
Communication Manual
ModemCAN
EMF2181IB
Communication module
l
Contentsi
1 About this documentation 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1 Document history 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Your opinion is important to us 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 Legal regulations 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Safety instructions 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1 General safety information 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 Device− and application−specific safety instructions 9. . . . . . . . . . . . . . . . . . . . . . . .
2.3 Residual hazards 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4 Notes used 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Product description 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1 Controls and displays 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2 Identification 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3 Product features 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 Technical data 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1 General data and operating conditions 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2 Protective insulation 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3 Dimensions 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 Installation 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1 Mechanical installation 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2 Electrical installation 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2.1 Wiring according to EMC (CE−typical drive system) 20. . . . . . . . . . . . . . . . .
5.2.2 Communication via CAN 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2.3 Communication via the diagnostic interface (9400) 22. . . . . . . . . . . . . . . .
5.2.4 Voltage supply 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2.5 Connection for the CAN bus 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2.6 Connection for an external modem 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2.7 Telephone connection 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2.8 Diagnostic interface 30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6 Commissioning 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1 Before switching on 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2 Commissioning with the system bus configurator 32. . . . . . . . . . . . . . . . . . . . . . . . .
6.3 Configuring the communication module 35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.4 Initial switch−on 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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7 Data transfer 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.1 Data transfer via CAN 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.2 Data transfer via the diagnostic interface 43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.3 Data transfer via modem 44. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8 Lenze codes and CANopen objects 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.1 Overview 47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.2 Description of the codes relevant for CAN 48. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.3 Description of the CANopen objects implemented 56. . . . . . . . . . . . . . . . . . . . . . . . .
8.4 Description of the general codes 58. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.5 Description of the codes relevant for the modem 60. . . . . . . . . . . . . . . . . . . . . . . . . .
9 Troubleshooting and fault elimination 65. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.1 Signalling of the CANopen RUN LED and ERROR LED 65. . . . . . . . . . . . . . . . . . . . . . .
9.1.1 CAN operating mode 65. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9.1.2 Operating mode − diagnostic interface 66. . . . . . . . . . . . . . . . . . . . . . . . . . .
10 Appendix 67. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.1 Modem standards 67. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.2 List of countries 68. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.3 AT commands 70. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.3.1 General modem control commands 70. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.3.2 Interface commands for the DEE modem 72. . . . . . . . . . . . . . . . . . . . . . . . .
10.3.3 Call control commands 73. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.3.4 Modulation control commands 75. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.3.5 Data compression commands 78. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10.3.6 S−register 79. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11 Index 80. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EDSMF2181IB EN 3.0
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About this documentation1
0Fig. 0Tab. 0
1 About this documentation
Target group
This manual is intended for all persons who install, commission and maintain the
networking and remote service of a machine.
Contents
The manual exclusively contains descriptions for the EMF2181IB communication module
(ModemCAN) and software for remote maintenance.
The manual supplements the mounting instructions which are part of the scope of supply.
The features and functions of the communication module are described in detail.
Typical applications are explained with the help of examples.
The manual does not describe a third−party manufacturer’s software. No responsibility is
taken for corresponding information given in this manual. Information on how to use the
software can be obtained from the documents of the master computer (master).
The theoretical connections are only explained in so far as they are necessary for
comprehending the function of the communication module.
Validity information
This documentation is valid for:
Communication module Type designation from hardware version from software version
ModemCAN EMF2181IB 1x 1x
These instructions are only valid together with the documentation for the standard
devices permitted for the application.
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EDSMF2181IB EN 3.0
1.1 Document history
Edition date Chapters revised Notes
11 / 2004 − First edition
03 / 2005
07 / 2014 All General corrections
6.5.2 Update of system bus configurator V1.2
6.7 Lenze codes supplemented
I Tip!
Information and tools concerning the Lenze products can be found in the
download area under
www.lenze.com
1.2 Your opinion is important to us
About this documentation
Document history
1
These instructions were created to the best of our knowledge and belief to give you the
best possible support for handling our product.
If you have suggestions for improvement, please e−mail us to:
feedback−docu@Lenze.de
Thank you for your support.
Your Lenze documentation team
EDSMF2181IB EN 3.0
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1
1.3 Legal regulations
About this documentation
Legal regulations
Labelling
Lenze communication modules are unambiguously designated by the contents of the
nameplate.
Manufacturer
Lenze Automation GmbH, Postfach 10 13 52, D−31763 Hameln
CE conformity
In conformity with EC "Low Voltage" Directive
Application as directed
The communication module or function module
ƒ must only be actuated under the operating conditions described in this
communication manual.
ƒ is an accessory module that is used as an option for the Lenze inverters or Lenze
drive PLCs. Detailed information about the application range can be found in the
"General" chapter.
ƒ must be mounted and electrically connected so that when it is installed correctly
and is used for application as directed in error−free operation it fulfils its function
and does not cause any danger to persons.
Observe all notes in the "Safety instructions" chapter.
Observe all notes relating to the corresponding communication module or function
module in this communication manual. This means:
ƒ Before starting any work, carefully read this part of the communication manual.
ƒ Always keep the communication manual next to the communication module or
function module during operation.
Any other use shall be deemed inappropriate!
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EDSMF2181IB EN 3.0
About this documentation
Legal regulations
Liability
The information, data and notes presented in this communication manual were up to date
at the time of printing. No claims to changes of previously delivered communication
modules or function modules can be made based on the information, figures and
descriptions used in this manual.
The specifications, processes, and circuitry described in this communication manual are for
guidance only and must be adapted to your own application. Lenze does not take
responsibility for the suitability of the process and circuit proposals.
The information in this communication manual describes the features of the products
without guaranteeing them.
Lenze does not accept any liability for damage and malfunctions caused by:
ƒ Disregarding the communication manual
ƒ Unauthorised changes to the communication module or function module
ƒ Operating errors
1
ƒ Improper working on and with the communication module or function module
Warranty
See terms of sales and delivery of the Lenze Drive Systems GmbH.
Warranty claims must be made to Lenze immediately after detecting the deficiency or
fault.
The warranty is void in all cases where liability claims cannot be made.
Disposal
Material Recycle Dispose
Metal D −
Plastic D −
Assembled PCBs − D
Short instructions/operating
instructions
D −
EDSMF2181IB EN 3.0
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2
Safety instructions
General safety information
2 Safety instructions
) Note!
It is absolutely vital that the stated safety measures are implemented in order
to prevent serious injury to persons and damage to material assets.
Always keep this documentation to hand in the vicinity of the product during
operation.
2.1 General safety information
} Danger!
Disregarding the following basic safety measures may lead to severe personal
injury and damage to material assets!
ƒ Lenze drive and automation components ...
... must only be used for the intended purpose.
... must never be operated if damaged.
... must never be subjected to technical modifications.
... must never be operated unless completely assembled.
... must never be operated without the covers/guards.
... can − depending on their degree of protection − have live, movable or rotating parts
during or after operation. Surfaces can be hot.
ƒ For Lenze drive components ...
... only use permitted accessories.
... only use original manufacturer spare parts.
ƒ All specifications of the corresponding enclosed documentation must be observed.
This is vital for a safe and trouble−free operation and for achieving the specified product
features.
The procedural notes and circuit details provided in this document are proposals which
the user must check for suitability for his application. The manufacturer does not
accept any liability for the suitability of the specified procedures and circuit proposals.
ƒ Only qualified skilled personnel are permitted to work with or on Lenze drive and
automation components.
According to IEC 60364 or CENELEC HD 384, these are persons ...
... who are familiar with the installation, assembly, commissioning and operation of
the product,
... possess the appropriate qualifications for their work,
... and are acquainted with and can apply all the accident prevent regulations, directives
and laws applicable at the place of use.
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EDSMF2181IB EN 3.0
Device− and application−specific safety instructions
2.2 Device− and application−specific safety instructions
ƒ During operation, the communication module must be securely connected to the
standard device.
ƒ With external voltage supply, always use a separate power supply unit, safely
separated in accordance with EN 61800−5−1 in every control cabinet (SELV/PELV).
ƒ Only use cables that meet the given specifications. (¶ 24)
, Documentation of the standard device, control system, and plant/machine
All the other measures prescribed in this documentation must also be
implemented. Observe the safety instructions and application notes contained
in this manual.
2.3 Residual hazards
Safety instructions
2
Protection of persons
ƒ If inverters are connected to phase−earthed system with a rated mains voltage
³ 400 V, external measures need to be implemented to provide reliable protection
against accidental contact. (see chapter "4.2", ^ 16)
Device protection
ƒ The communication module contains electronic components that can be damaged
or destroyed by electrostatic discharge.
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2.4 Notes used
Safety instructions
Notes used
The following pictographs and signal words are used in this documentation to indicate
dangers and important information:
Safety instructions
Structure of safety instructions:
} Danger!
Pictograph and signal word Meaning
{ Danger!
} Danger!
( Stop!
Application notes
(characterises the type and severity of danger)
Note
(describes the danger and gives information about how to prevent dangerous
situations)
Danger of personal injury through dangerous electrical voltage.
Reference to an imminent danger that may result in death or
serious personal injury if the corresponding measures are not
taken.
Danger of personal injury through a general source of danger.
Reference to an imminent danger that may result in death or
serious personal injury if the corresponding measures are not
taken.
Danger of property damage.
Reference to a possible danger that may result in property
damage if the corresponding measures are not taken.
Pictograph and signal word Meaning
) Note!
I Tip!
,
Important note to ensure troublefree operation
Useful tip for simple handling
Reference to another documentation
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EDSMF2181IB EN 3.0
3 Product description
3.1 Controls and displays
Product description
Controls and displays
3
2181FEW001D
Fig. 3−1 Communication module ModemCAN 2181
Connections
Pos. Name Description
4 Telephone connection Socket (RJ11)
5 Connection at diagnostic interface of the
Servo Drive 9400
6 CAN connection Socket (RS232, male)
7 Connection for voltage supply Terminal strip with spring connection, 4−pole
8 External modem connection Socket (RS232, male)
: PE connection The plugged communication module is automatically
Socket (RJ69)
connected to the DIN rail.
The DIN rail must be connected with PE!
EDSMF2181IB EN 3.0
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3
Product description
Controls and displays
LED status displays
Pos. Colour State Description
0
(M)
1
(E)
2
(R)
3
(P)
yellow
red
green
green on The ModemCAN 2181 is supplied with voltage.
on The ModemCAN 2181 is ready for operation.
blinking Active communication over the telephone network
on l Operation via the diagnostic interface:
No device is connected to the diagnostic interface.
see ^ 40 l Operation via CAN:
ERR LED
on l Operation via the diagnostic interface:
A device is connected to the diagnostic interface.
see ^ 40 l Operation via CAN:
RUN−LED
) Note!
Refer to the instructions on the signals provided by the ERROR LED and RUN
LED in the Troubleshooting chapter (¶ 65).
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EDSMF2181IB EN 3.0
3.2 Identification
Type code W 33.2181IB 1x 1x
Device series
Hardware version
Software version
Product description
Identification
3
2181FEW099
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3
3.3 Product features
Product description
Product features
The communication module is used for setting parameters during remote maintenance or
for programming and commissioning the applicable Lenze devices.
The ModemCAN 2181 communication module makes it possible to directly couple a CAN
bus to an analog telephone line. It is equipped with an internal analog modem which is
approved for all internationally relevant countries and telephone standards and thus
enables worldwide remote maintenance. If required, an external modem can be
connected if the internal modem is not suitable in the respective country, or if a GSM or
ISDN modem is required.
) Note!
We continuously strive to ensure the highest level of compatibility between
the ModemCAN 2181 and other modems. However, full compatibility cannot
be reached because of the great variety of modems available on the market. If
communication with the internal modem cannot be established, a suitable
external modem has to be used.
Application range
The communication module can be used with the following Lenze devices:
ƒ Servo Drives 9400
ƒ Inverter Drives 8400
ƒ 9300 servo inverter
ƒ 9300 vector
ƒ 9300 Servo PLC
ƒ ECS servo system
ƒ 8200 motec motor inverter
ƒ 8200 vector frequency inverter
ƒ 82XX frequency inverter
ƒ Drive PLC
ƒ Terminal extension 9374
ƒ Control / display unit (EPM−HXXX)
ƒ I/O system IP20 (EPM−TXXX)
The internal modem supports a series of international specifications and standards.
14
If the internal modem cannot be used, it is possible to connect an external modem using
the RS232 interface.
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EDSMF2181IB EN 3.0
General data and operating conditions
4 Technical data
4.1 General data and operating conditions
Range Values
Order designation EMF2181IB
Communication media (system) CAN (DIN ISO 11898)
Lenze diagnostic interface
Communication media (external) Telephone analogue, 33.6 kbit/s, (V34)
Number of nodes at the CAN bus Max. 100
Baud rate l when communicating via CAN
– 20 kbit/s
– 50 kbit/s
– 125 kbit/s
– 250 kbit/s
– 500 kbit/s
– 1000kbit/s
l For communication via diagnostic interface
– 230.4 kbit/s
Voltage supply (external) via
separate power supply
18 30 V DC, max. 100 mA (in accordance with EN 61131−2)
Technical data
4
Conformity and approval
Conformity
CE 2004/108/EC EMC Directive
EAC TP TC 020/2011
(TR CU 020/2011)
EAC TP TC 004/2011
(TR CU 004/2011)
Operating conditions Values Deviations from the standard
Climatic conditions
Storage 1 K3 to IEC/EN 60721−3−1
Transport 2 K3 acc. to IEC/EN 60721−3−2 − 10 ... + 70 °C
Operation 3 K3 acc. to IEC/EN 60721−3−3 0 ... + 60 °C
Enclosure of attached module IP20
Degree of pollution 2 acc. to IEC/EN 61800−5−1
Electromagnetic
compatibility of technical
means
On safety of low voltage
equipment
− 10 ... + 60 °C
Eurasian Conformity
TR CU: Technical Regulation of
Customs Union
Eurasian Conformity
TR CU: Technical Regulation of
Customs Union
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4.2 Protective insulation
Technical data
Protective insulation
2181FEW001F
Connection Type of insulation (according to EN 61800−5−1)
4 Telephone Functional insulation
5 Diagnostic interface Functional insulation
6 CAN bus Functional insulation
7 Voltage supply No insulation
8 External modem No insulation
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4.3 Dimensions
Technical data
Dimensions
4
A 117 mm
B 103 mm
b1 99 mm
E 22.5 mm
2181FEW001B
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Installation5
5 Installation
} Danger!
Inappropriate handling of the communication module and the standard device
can cause serious personal injury and material damage.
Observe the safety instructions and residual hazards described in the
documentation for the standard device.
( Stop!
The device contains components that can be destroyed by electrostatic
discharge!
Before working on the device, the personnel must ensure that they are free of
electrostatic charge by using appropriate measures.
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5.1 Mechanical installation
Mounting
Installation
Mechanical installation
5
Fig. 5−1 Snap communication module to DIN rail
Dismounting
Fig. 5−2 Unlock communication module and lift off DIN rail .
2181FEW002B
2181FEW001E
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5.2 Electrical installation
5.2.1 Wiring according to EMC (CE−typical drive system)
Installation
Electrical installation
Wiring according to EMC (CE−typical drive system)
For wiring according to EMC requirements observe the following points:
) Note!
ƒ Separate control cables/data lines from motor cables.
ƒ Connect the shields of control cables/data lines at both ends in the case of
digital signals.
ƒ Use an equalizing conductor with a cross−section of at least 16mm
(reference:PE) to avoid potential differences between the bus nodes.
ƒ Observe the other notes concerning EMC−compliant wiring given in the
documentation for the standard device.
Wiring procedure
2
1. Comply with bus topology, thus do not use stubs.
2. Observe notes and wiring instructions in the documents for the control system.
3. Only use cables that comply with the given specifications (¶ 24).
4. Observe notes for the voltage supply of the module (¶ 23).
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Installation
Electrical installation
Communication via CAN
5
5.2.2 Communication via CAN
Fig. 5−3 Communication via the CAN bus
Installation steps
Step Description Connection
1. Plug the Sub−D plug (EWZ0046) into the ModemCAN 2181.
2. If it’s not possible to use the internal modem, connect an
external modem.
3. Connect the inverter to the CAN bus.
4. Connect the ModemCAN 2181 to the telephone network.
5. Connect the voltage supply to the plug connector.
(see graphics)
6
8
;
4
7
2181FEW008
Additional
information
^ 24
^ 28
−
^ 29
^ 23
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Installation
Electrical installation
Communication via the diagnostic interface (9400)
5.2.3 Communication via the diagnostic interface (9400)
Fig. 5−4 Communication via the diagnostic interface (only 9400)
2181FEW007
Installation steps
Step Action Connection
1. Connect voltage supply to the plug connector 7 ^ 23
2. Connect diagnostic interface to the 9400 inverter (use
pre−assembled cable)
3. If it’s not possible to use the internal modem, connect an
external modem.
4. Connect inverter to CAN bus ; −
5. Connect ModemCAN 2181 to telephone network 4 ^ 29
(see graphics)
5 ^ 30
8 ^ 28
Additional
information
We especially recommend carrying out communication via the diagnostic interface if the
2181 communication module is only connected temporarily.
In the case of a fixed installation, communication via CAN is preferable, see (¶ 21).
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Installation
Electrical installation
Voltage supply
5
5.2.4 Voltage supply
Terminal data
Terminal data
Electrical connection Plug connector with spring connection
Possible connections
Stripping length
10 mm
2
2
(AWG 12)
2
(AWG 12)
2
(AWG 12)
(AWG 12)
rigid: 2.5 mm
flexible:
without wire end ferrule
2.5 mm
with wire end ferrule, without plastic sleeve
2.5 mm
with wire end ferrule, with plastic sleeve
2.5 mm
2181FEW001G
Handling of pluggable terminal strips
( Stop!
In order to avoid damages to the pluggable terminal strips and the contacts:
ƒ The terminal strips must be wired before plugging them in!
ƒ Pluggable terminals strips that are not assigned must be plugged on as well.
Use of pluggable terminal strip with spring connection
E82ZAFX013
EDSMF2181IB EN 3.0
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23
5
OFF
ON
Installation
Electrical installation
Connection for the CAN bus
5.2.5 Connection for the CAN bus
Assignment of the Sub−D plug connector
View Pin Assignment
5
9
1, 4, 5, 6, 8, 9 −
2 CAN−LO
3 CAN−GND
6
1
7 CAN−HI
Between CAN_LOW and CAN−HIGH the CAN bus has to be terminated by resistors (120W).
The Sub−D plug with an integrated terminating resistor (order no. EWZ0046, not included
in the scope of supply) complies with the recommendation DS 102−1 of CiA.
2181FEW001K
On
120
EWZ0046
L
ð
L
120 120
On
O
FF
ON
E
W
Z0046
F
F
O
N
O
Off
EWZ0046
L
EWZ0046
L
ð
ð
ð
OUTIN IN IN
Specification of the transmission cable
We recommend the use of CAN cables in accordance with ISO 11898−2:
CAN cable in accordance with ISO 11898−2
Cable type Paired with shielding
Impedance 120 W (95 ... 140 W)
Cable resistance/cross−section
Cable length £ 300 m £ 70 mW/m / 0.25 0.34 mm2 (AWG22)
Cable length 301 1000 m £ 40 mW/m / 0.5 mm2 (AWG20)
Signal propagation delay £ 5 ns/m
2181FEW004
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l
EDSMF2181IB EN 3.0
Installation
Electrical installation
Connection for the CAN bus
Bus cable length
) Note!
ƒ It is absolutely necessary to comply with the permissible cable lengths.
ƒ Please note the reduction of the total cable length due to the signal delay of
the repeater (¶ 27).
ƒ Mixed operation
– Mixed operation refers to different nodes which are connected to the
same network.
– If the total cable lengths of the nodes are different at the same baud rate,
the smaller value must be used to determine the max. cable length.
1. Please check the compliance with the total cable length in Tab. 5−1.
The total cable length is determined by the baud rate.
Baud rate [kbit/s] Max. bus length [m]
10 8000
20 3900
50 1500
125 630
250 290
500 110
800 40
1000 17
Tab. 5−1 Total cable length
5
2. Please check the compliance with the segment cable length in Tab. 5−2.
The segment cable length is specified by the cable cross−section and the number of nodes.
Without a repeater, the segment cable length corresponds to the total cable length.
Max. number of
nodes per segment
2 240 m 430 m 650 m 940 m
5 230 m 420 m 640 m 920 m
10 230 m 410 m 620 m 900 m
20 210 m 390 m 580 m 850 m
32 200 m 360 m 550 m 800 m
63 170 m 310 m 470 m 690 m
100 150 m 270 m 410 m 600 m
Tab. 5−2 Segment cable length
Cable cross−section
0.25 mm
2
0.5 mm
2
0.75 mm
2
1.0 mm
2
3. Compare both values.
If the value given in Tab. 5−2 is smaller than the total cable length given in Tab. 5−1,
repeaters must be used. Repeaters divide the total cable length into segments.
EDSMF2181IB EN 3.0
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