User manual

13 LEDindicatorsandtroubleshooting | Fieldbus coupler
471Manual u-remote1432790000/08/12.2015
In the event of a malfunction occurring on a u-remote sta-
tion, carry out the following recommended measures. If the
malfunction cannot be xed, send the affected product to
Weidmüller (see the Service addresses in the annex).
Weidmüller does not assume any liability If the base or
electronic module has been tampered with!
Technical support:
Tel. [phone]
[e-mail]
13.1 Fieldbus coupler
Coupler/indicator LED Status Recommended action
UR20-FBC-PB-DP
Power LED
PWR Green: Supply voltage applied
Off, status LED of the module is green: Defective coupler Have the coupler repaired or replaced
The internal fuse was triggered due to an overload
Off, module status LED is off: Improper supply voltage Check the supply voltage
Collective error
SF Red: Conguration error, or error in the coupler, or error in a
module, or there is a new diagnostic message
Redashing: Station in Force mode
Check that the GSD le is up-to-date
Check if the congured station setup matches the actual
setup
Read the diagnostic message with the web server or an
engineering tool and determine which further actions to take
Bus failure
BF Red: No connection to the eldbus Check the eldbus cable and the PLC conguration
Redashing: Conguration error, no connection to the
control unit, or error in the parameter set or slave address
error or rmware update is running
Check the eldbus parameters and the PLC conguration
Check that the GSD le is up-to-date
Check if the congured station setup matches the actual
setup
Maintenance
MT Yellow: Error on the system bus or the eldbus Check that the modules have been snapped into place properly
Check eldbus wiring
Check the eldbus connection parameters
Input supply voltage
3.1 Green: Supply voltage for input current path >18VDC
3.2 Red: Supply voltage for input current path <18VDC Check the supply voltage
3.4 Red: Internal fuse defective Replace the coupler
Output supply voltage
4.1 Green: Supply voltage for output current path >18VDC
4.2 Red: Supply voltage for output current path <18VDC Check the supply voltage
4.4 Red: Internal fuse defective Replace the coupler
13 LED indicators and troubleshooting