Weidmüller u-control UC20-WL2000-AC-CAN Manual page 73

Controller/indicator
UC20-WL2000-IOT
Power LED
System failure
Bus failure
Maintenance
Controller status
Connection/active connection 1
Connection/active connection 2
Input supply voltage
Output supply voltage
2604080000/08/08.2023
LED Status
green: supply voltage present, firmware is running
PWR
red: serious system failure
SF
green: communication with modules OK
BF
red: communication error with module or no modules
connected
MT green flashing twice: operating system is running
RUN off: no application deployed
green: application is deployed and running
off: no connection
L/A X1
green: connection of controller connection 1 with an
additional field device
green/yellow flashing: data being exchanged on
connection 1
off: no connection
L/A X2
green: connection of controller connection 2 with an
additional field device established
green/yellow flashing: data being exchanged on
connection 2
green: input current path supply voltage > 18 V DC
3.1
red: input current path supply voltage < 18 V DC
3.2
red: internal fuse defective
3.4
green: output current path supply voltage > 18 V DC
4.1
4.2 red: output current path supply voltage < 18 V DC
4.4 red: internal fuse defective
Manual u-control
13 LED indicators and troubleshooting
Recommended action
–
Switch supply voltage off and on again and deploy
application again
–
Check whether modules are mounted correctly
–
–
–
Check Ethernet cable
–
Check Ethernet cable
–
–
Check supply voltage
Replace the controller
–
Check supply voltage
Replace the controller
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