Fig. 10 Ethercat Leds - Beckhoff EP1908 Operating Instructions Manual

Operation
5.2.5.3 EtherCAT- Fieldbus LEDs
Fig. 10: EtherCAT LEDs
LED indicators
LED Display
IN L/A off
lit
flashing
OUT L/A off
lit
flashing
Run -
5.2.5.4 EtherCAT cables
For connecting EtherCAT devices only Ethernet cables that meet the requirements of at least category 5
(CAT5) according to EN 50173 or ISO/IEC 11801 should be used.
Wiring recommendations
Detailed recommendations for EtherCAT wiring can be found in the documentation "Design
recommendations for EtherCAT/Ethernet infrastructure", which is available for download from
www.Beckhoff.de.
EtherCAT uses four cable wires for signal transmission. Due to automatic cable detection (auto-crossing)
symmetric (1:1) or cross-over cables can be used between EtherCAT devices from BECKHOFF.
5.2.5.5 Power Connection
Two M8 connectors at the low-end of the modules are used for feeding and routing the supply voltages:
• IN: left M8 connector for feeding the supply voltages
• OUT: right M8 connector for routing the supply voltages
• Earthing screw: The earthing screw is installed in the factory. An additional M3 ring cable lug and the
earthing cable are required for the installation.
Earthing connection
It is recommended to connect the earth connection to PE with low resistance.
24
Meaning
no connection to the preceding EtherCAT module
LINK: connection to the preceding EtherCAT module
ACT: communication with the preceding EtherCAT module
no connection to the following EtherCAT module
LINK: connection to the following EtherCAT module
ACT: Communication with the following EtherCAT module
See chapter 4.4.1 [} 34]
Version: 3.0.0 EP1908