Troubleshooting - Danfoss WS 403 Technical Information

Technical Information
WS 403 Remote Solution

Troubleshooting

© Danfoss | March 2016
Problem
WS unit does not work properly.
Direct communication with the device is not possible.
WS unit does not connect to Web Portal.
What to do
•
Check if the CAN baud rate is set correctly
•
Check if the wiring is correct (connector pinning)
•
Check if the CAN network is terminated correctly:
measuring 60 Ohms between CAN-H and CAN-L & at
least one termination resistor in a desk network
•
Check if the CAN receive objects are configured
correctly and activated.
•
Check if the CAN filter settings in the WS Configurator
are selected correctly.
•
In the Communication Settings (Options > Settings >
Communication Settings), select CAN Filter Settings >
Driver-optimized settings.
•
Select Totally open for 11 and 29 bit messages.
•
Check the UMTS LED flashing code (see related table
above).
L1426375 | BC00000241en-US0203 | 27