Table of Contents
Advertisement
13 LED indicators and troubleshooting
13 LED indicators and troubleshooting
In the event of a malfunction occurring on a u-control prod-
uct, carry out the following recommended measures. If the
malfunction cannot be fixed, please send the affected prod-
uct to Weidmüller. You can find all Weidmüller addresses
and your local contact on the Internet at
www.weidmueller.com.
Weidmüller does not assume any liability if the base or elec-
tronic module has been tampered with!
Controller/indicator
UC20-WL2000-AC, UC20-WL2000-AC-CAN
Power LED
System failure
Bus failure
Maintenance
Controller status
Connection/active connection 1
Connection/active connection 2
Input supply voltage
Output supply voltage
72
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
green flashing twice: operating system is running
MT
RUN
off: no application deployed
green: application is deployed and running
yellow: application is deployed and stopped
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
3.4
red: internal fuse defective
4.1
green: output current path supply voltage > 18 V DC
red: output current path supply voltage < 18 V DC
4.2
red: internal fuse defective
4.4
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
Manual u-control
2604080000/08/08.2023
Advertisement
Table of Contents
Need help?
Do you have a question about the u-control UC20-WL2000-AC-CAN and is the answer not in the manual?