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operating instructions for the relevant frequency inverter. All
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SK CU4-ECT
Technical Information / Datasheet
Part number: 275 271 017
EtherCAT® - Internal bus interface
NOTICE
This document is only valid in combination with the
of the information that is relevant for a safe start-up of this module and the frequency inverter is only available
under these conditions.
Validity of the documents
Scope of supply
1 x Module SK CU4-ECT
1 x System bus cable set grey / black
1 x 24 VDC cable set brown / blue
2 x Connecting screws M4 x 20, cross-head
Field of use
Internal interface for connecting a decentralised frequency inverter (SK 180E … SK 2xxE) to an
EtherCAT field bus. It is connecte d via the s ystem bus with the in verter and ca n comm unicate direct ly
with up to 4 frequency inverters. 2 digital inputs are available.
Technical data
Module
Temperature range -25°C … xx °C * Vibration resistance 3M7
Temperature class Class 3k3 Firmware version V1.6 R1
Protection class IP20 Hardware version AA
Supply voltage 24 V ± 20 %, ≈ 100 mA
Reverse polarity protected
* The upper temperature limit depends on the frequency inverter and the operating mode à see "Derating"
EtherCAT Bus module SK CU4-ECT
1.1 LED - displays, derating, Error 10.9 4913 Rck TI 275271017 GB
version reason for change(s) issue name document speech
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EtherCAT Bus module – SK CU4-ECT
permissible ambient temperature is exceeded, the module may heat up to an impermissible extent and switch off
S1
Motor
25°C
30°C
S3 ED 50 %, 10min
Motor
40°C
n. s.
S3 ED 70 %, 10min
Motor
n. s.
40°C
S1
Wall (unventilated)
37°C
42°C
* The limits of the frequency inverter must not be exceeded (refer to the frequency inverter manual).
Digital input - working range Low: 0 V … 5 V, High: 15 V … 30 V
Digital input - specif ic dat a Ri = 10 kΩ, input capacity: 10nF, reaction time 1 ms, inputs
according to EN 61131-2 type 1
Bus specifics
EtherCAT Max. 100 MBaud Cable Min. Ethernet CAT-5
Electrical isolation 500 V
Max. cable length 100 m between two
eff
modules
Bus connection Screw terminals Shield Direct to PE
bus termination performed automat ica lly PE connection via PE screw connection
Status display 6 LEDs in the terminal box
Topology Linear bus
Process data 8 Byte per FI + 2 Byte for
IOs.
Total length 2 … 34 Byte
Performance
Update interval of process data for 1000 devices ≈ 1 ms
Update interval for process data between module and frequency inverter ≈ 5 ms
Parameter read access on the frequency inverter ≈ 12 ms
Parameter write access with storage in EEPROM ≈ 25 ms
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Derating
NOTICE
Derating
Depending on the installation location of the module (SK 180E, SK 190E or SK 2xxE), the operating mode (S1,
S3 ...) and the installation type (wall-mounting, motor -mounting) of the frequency inverter as well as the type of
motor used (IE1 / IE2 / ...) restrictions to the permissible ambient temperature must be taken into account. If the
with an error message (E104.0).
Maximum ambient temperature *
Operating mode Installation type SK 180E / SK 190E SK 2xxE
S1 Wall (ve ntilated) 47°C 48°C
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diagnosis socket on the device (if available) or via the
Potential
Contact
Designation
Description
E8
PHY1 RX-
Ethernet connection 1 Receive Data -
E7
PHY1 RX+
Ethernet connection 1 Receive Data +
E6
PHY1 TX-
Ethernet connection 1 Transmission Data -
E5
PHY1 TX+
Ethernet connection 1 Transmission Data +
E3
PHY0 RX+
Ethernet connection 2 Receive Data +
E2
PHY0 TX-
Ethernet connection 2 Transmission Data -
E1
PHY0 TX+
Ethernet connection 2 Transmission Data +
78
SYS -
System bus data line -
77
SYS +
System bus data line +
C1
DIN1
Digital input 1
C2
DIN2
Digital input 2
40
GND/0V
Reference potential (0 V / GND)
44
24V
Supply voltage (+24 V)
40
GND/0V
Reference potential (0 V / GND)
44
24V
Supply voltage (+24 V)
VI 24V
GND/0V
SYS +
SYS -
24V
GND/0V
SYS +
SYS -
Module features
EtherCAT Bus module – SK CU4-ECT
Parameterisation Via CoE (CANopen over EtherCat)
Error messages (Emergency Messages) According to CANopen DS301
EtherCAT addressing (Second Address) DIP switch or module parameter
Distributed Clocks Not supported
Access for NORD diagnosis tool via
frequency inverter
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Installation
Installation location Within the connection unit of a frequency inverter (SK 180E, SK 190E, 2xxE)
Mounting with screw fastenings
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Connections
Connection is via the terminal bar of the module
1
2
E4 PHY0 RX- Ethernet connection 2 Receive Data -
Ethernet
digital inputs
System bus level and
Schematic diagram - electrical connection
(Terminal designation on example of NORD frequency inverter SK 180E … SK 2xxE)
SK CU4-… SK 180E … SK 2xxE
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TI 275271017 - 4913 3
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EtherCAT Bus module – SK CU4-ECT
DIP switch
Meaning
12
11
10 9 8 7 6 5 4 3 2
1
Address
0 0 0 0 0 0 0 0 0 0 0 X 0 0 0 0 0 0 0 0 0 0 0 1 X
1
0 0 0 0 0 0 0 0 0 1 0 X 2 - - - - - - - - - - - X - 1 1 1 1 1 1 1 1 1 1 1 X 2047
System bus
not set
1 System bus
set
RUN
green
Ethernet State
ERR
red
Ethernet Error
DS
green
Device status
L/A OUT
green
Link/Activity OUT
RUN
State
Meaning
OFF
Init
• No communication of process data and parameters
Flashing
Pre-Operational
• Parameter communication active
• No process data communication
Single Flash
Save
• Parameter communication active
• Setpoints not evaluated
ON
Operational
• Unrestricted process data communication
ERR
State
Meaning
OFF
No Error
• EtherCAT functioning norm al l y on th e Bus Mod ule
Flashing
Invalid
• General EtherCAT configuration error
State Change
Double Flash
Application
Timeout
• EtherCAT or FI timeout (P513 in FI)
1 … 12
ON
OFF
Configuration
In general, no settings need to be made on the device. However, via the "Hot Connection Group"
functionality, the module can be config ur ed with a f ix ed ad dres s , the s o-called "Second Addr ess". T his
is carried out via the DI P s w itches of the module. The DIP s witc h s ett ings ar e re ad after a "Power On"
of the module.
0
terminating resistor
terminating resistor
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LED displays
The operating statuses of the module are visualised using LED indicators.
No. Name Colour Meaning
1
2
DE red Device error
L/A IN green Link/Activity In
3
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EtherCAT-specific LEDs
Operational
Configuration
Single Flash Unsolicited
Watchdog
4 TI 275271017 - 4913
• Limited process data com m unic at io n
• No restriction of actual values
• Parameter communication active
This can be generated by an incorrect XML file.
• The module has changed the EtherCAT state without authorisation
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EtherCAT Bus module – SK CU4-ECT
L/A
(Green LED)
State
Meaning
OFF
No Connection
• Module not ready, no control voltage.
• No bus connection (check cable connection)
Flashing
Active
• Technology box connected and active
ON
Inactive
• Technology box ready for operation, but no bus activity available
Meaning
Short flash = 0.25 s on / 1 s off
OFF
OFF
Module not ready, no control voltage.
ON
OFF
Module ready, no error, at least one frequency inverter is communicating via the system bus
ON
Short flashing
Module ready, but
Long flashing
OFF
Module ready and at least one other participant is connected to the system bus, but
• Software incompatible (module software and FI software do not match - update required)
Long flashing
Short flashing
System bus is in status "Bus Warning"
• Frequency inverter has no supply voltage
Long flashing
Short flashing
System bus is in status "Bus Off"
Long flashing
Short flashing
Long flashing
Short flashing
4 x - 1s pause
Module error
OFF
Short flashing
System error, internal program sequence interrupted
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NORD-specific LEDs
DS
(Device status)
DE
(Device error)
Flash interval
1 x - 1s pause
Flash interval
2 x - 1s pause
Flash interval
3 x - 1s pause
Flash interval
Flash interval
1…7 - 1s pause
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Long flash = 0.5 s on / 1 s off
• One or more of the connected frequency inverters has fault status
• no frequency inverter connected to system bus (connection may be interrupted)
•
one or more system bus clients has address error
• Communication on system bus disrupted
•
No other clients available on system bus
•
Module not inserted correctly or no connection to the system bus
• the system bus 24V power supply was interrupted during operation
System bus is in status "Bus Off"
• No system bus 24V power supply
• see parameter P170
• EMC interference (observe wiring guidelines!)
• Module defective
TI 275271017 - 4913 5
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EtherCAT Bus module – SK CU4-ECT
Error
Meaning
Remarks
100.0
EEPROM error
EMC fault, module defective
102.0
Timeout
via P151/P513 monitoring
103.0
System bus BUS OFF
No 24V supply to the bus, connections not correct
approx. 60sec
550.1
DIP switch error
The DIP switches (IP address) could not be read correctly
560.0 …
Internal error
Module not r eady
561.0
General network error
561.1
Ethernet Watchdog timeout
561.2
Bus cable fault
Bus cable connection interrupted
561.3
IP address error
IP address of the module has been doubly assigned
563.0
Firmware version incompatible
The firmware version cannot be used for the device
564.0
MAC address error
Error
(E010)
Meaning
Remarks
10.0
Connection error
Contact to SK xU4 lost
10.1
ASIC errors
Communication to Ethernet - ASIC lost
(only SK CU4-…)
program sequence and Bus Master
10.3
Timeout by P151/P513
Telegram transfer error
Check the
10.4
IP address error
IP address of the module has been doubly assigned
10.5
Internal error
Module not ready, configuration error
10.6
Bus cable fault
Bus cable connection interrupted
and the module had a timeout
10.9
Module missing (P120)
Only SK xU4 module
Error messages
Error messages fr om the m odule - present error s or archived m ess ages relating t o the last error - can
be read out via the module par ameter (P170). The error messages are lost if the m odule is switched
off.
104.0 Module temperature > 91°C SK CU4-… only, permissible internal temperature exceeded for
560.9
Errors which occur in relation to the module are depicted as follows in the error memory of the
frequency inverter (P700 / P701).
10.2 Ethernet Watchdog timeout Telegram transfer error
10.8 The connection between the inverter
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• Switch-off of the supply voltage
• Reduce the temperature of the module to below 91°C
• Check the connections and links,
• Check the connections and links
•
Only SK TU3 module
Watchdog time
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Parameter [-Array]
Meaning
Remarks
P120 [-01]
Option monitoring
"Auto“ (default setting)
Only SK xU4
SK xU4-… on SK 180/SK 2xxE: "System bus"
P510 [-01 … -02]
Setpoint source
"Auto“ (default setting)
P513
Time-out
Monitoring of the SK TU3 bus module
Only SK 5xxE
P543 [-01 …-03 (-05)]
and P543 … P545
Bus actual values (1 …3 (… 5))
Possible settings according to (P418)
P546 [-01 …-03 (-05)]
Bus target values (1 …3 (… 5))
Possible settings according to (P400)
P700 [-01] / P701
Current / last failures
Information parameters
P740 / P741
Process data bus In / Out
Information parameters
P745
Module version
Information parameters
Only SK TU3
P745
Module status
Information parameters
Only SK TU3
P748
CANopen / System bus status
Information parameters
Parameter [-Array]
Meaning
Remarks
-TU3-
-TU4-
-CU4-
P150
Set relays
Set DOUT directly or control via BUS
X
P151
External bus time-out
Monitoring of SK xU4 bus module
X X
P152
Factory setting
Reset module parameters
X X X
Minimum system bus
cycle
the module (SK xU4 only)
P154 [-01 …-02]
Access to option card
I/O
Administration of read and write rights to the IO of
the module
X X
P171 [-01 … -03]
Software version
Firmware version / Revision
X X X
P172
Configuration
Module type
X X X
P173
Module status
Status of system bus or connected FC
X X X
P174
Status of digital inputs
Image of the switching status of DIN
X X
P175
Digital output state
Image of the switching status of DOUT
X
P176 [-01 … ]
Process data bus In
Information parameter
X X X
P177 [-01 … ]
Process data bus Out
Information parameter
X X X
P178
Internal temperature
Information parameter
X
P180
NMT State
Information parameter
X X X
P181
Second Address
Information parameter
X X X
P182
EtherCAT Watchdog
Watchdog monitoring time
X X X
P183 [-01 …-04]
EtherCAT transfer error
Transfer error at EtherCAT level
X X X
P184
SPI error counter
Information parameter
X X X
Parameters
Frequency inverter: The following frequency inverter parameters must be adapted for setting up
communication between the frequency inverter and the bus module (for details see frequency
converter manual).
EtherCAT Bus module – SK CU4-ECT
P509 Control word source
and P546 … P548
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SK TU3-… on SK 5xxE: "Ethernet TU”
BUS module: The module provides a selection of appropriate parameters for setting or displaying
special operating values. Parameters can be adapted using the NORDCON software or an
SK PAR-3H / -3E param eter box. All parameters can still be read an d written by the bus master via
EtherCAT.
P153 [-01 …-02]
Reduction of bus load on the s ystem b us caused by
X X
P170 [-01 … -02] Present errors Displaying module errors X X X
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EtherCAT Bus module – SK CU4-ECT
s diagnosis
connection unit
verter diagnosis socket , if
connected to module via system
Software
Name
Software
Meaning
XML file
Device characteristics and parameters
NORD CON
Parameterisation and diagnostic software
Document
Name
Document
Meaning
BU 0000
Description of NORD CON software
BU 0200
SK 2xxE frequency inverter manual
BU 0040
ParameterBox manual
BU 0270
Description of EtherCAT bus communication
BU 0180
Frequency inverter manual SK 180E, SK 190E
Parameter access and diagnosis
The NORD CON software and optional control units s uch as the SK PAR-3H pa rameter box provide
convenient access to the parameters of the module and allow status information to be read out.
SK TU3- SK TU4- SK CU4- / SK TU4-
Access via RJ12-SK 5xxE
diagnosis socket
Access via RJ12-Bu
socket SK TI4-TU-BUS(-C)
Access via RJ12-Frequency
in
bus.
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Additional documentation and software (www.nord.com)
=== Ende der Liste für Textmar ke Inhalt ===
8 TI 275271017 - 4913
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