NORD TI 275271017 User Manual
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
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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2 TI 275271017 - 4913
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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