Leds And Connection; Fig. 26 Cu2508 Front View - Beckhoff CU2508 Documentation

3.4

LEDs and connection

The CU2508 has 4 diagnosis LEDs.
Fig. 26: CU2508 front view
LEDs
LED Color Meaning
RUN green This LED indicates the operating state of the CU2508 running as an EtherCAT device
off
flashing
single
flash
on
Int Act green flashes when data traffic occurs
Power green on, when the device is powered correctly
Error yellow an error has occurred (see chapter "Error handling and diagnosis [} 25]")
X1 - green Link/Activity
X8
yellow internal buffer overflow, alignment error detected
Pin assignment
Terminal point
X0
X1..X8
X9
Shielding concept
The PE/shield connection is connected to the metal housing. It should be used as functional earth to protect
from interference.
Real-time Ethernet port multiplier
State of the EtherCAT State Machine: INIT = initialization of the terminal or
BOOTSTRAP
State of the EtherCAT State Machine: PREOP = function for mailbox
communication and different standard-settings set
State of the EtherCAT State Machine: SAFEOP = verification of the sync
manager channels and the distributed clocks.
Outputs remain in safe state
State of the EtherCAT State Machine: OP = normal operating state; mailbox and
process data communication is possible
Comment
24 V power supply: +, GND and shield connection (functional earth)
DC
DownLink Port FastEthernet 10/100 Mbit
UpLink Port Gbit Ethernet
Version: 2.6
Mounting and wiring
27