User manual

13 LEDindicatorsandtroubleshooting| Fieldbus coupler
474 1432790000/08/12.2015Manual u-remote
Coupler/indicator LED Status Recommended action
UR20-FBC-MOD-TCP
Power LED
PWR Green: Supply voltage
Off and the status LED on the module is green: Defective
coupler
Have coupler repaired or replaced
The internal fuse was triggered due to an overload
Off and the status LED on the module 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 if the congured station setup matches the actual
station 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
Check if the congured station setup matches the actual
station setup
Check the master conguration and try again to establish
connection
Maintenance
MT Yellow: Error on the system bus or the eldbus Check that the modules have been snapped into place properly
Check the eldbus cabling
Check the eldbus connection parameters
Connection/active
L/A X1 Green: Connection established between port 1 of the
coupler and another eld device
Greenashing: Data being exchanged on port 1
Off: No connection Check the connection to the next participant and the eldbus
cable
Connection/active
L/A X2 Green: Connection established between port 2 of the
coupler and another eld device
Greenashing: Data being exchanged on port 2
Off: No connection Check the connection to the next participant and the eldbus
cable
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