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B-3
PROBLEMS
(SYMPTOMS)
Device goes off line during welding
For more trouble shooting of a DeviceNet network the following references should be used.
Allen-Bradley
Rockwell Automation
ODVA web site (www.odva.org)
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
TROUBLESHOOTING
Observe all Safety Guidelines detailed throughout this manual
POSSIBLE AREAS OF
MISADJUSTMENT(S)
1. Current Interference
2. Termination
3. Shield
4. Power Supply
5. Expected Packet Rate
Cat. Num. DN-6.7.2
Document 8842
DEVICENET MODULE
1. Verify that cables are not run
2. Verify that the DeviceNet bus is
3. Verify that the cable shielding is
4. Verify that the power supply can
5. Verify that 1000/(Expected Packet
CAUTION
RECOMMENDED
COURSE OF ACTION
along current carrying conductors.
This would include the welding
cables.
terminated correctly.
correctly grounded at the bus
power supply. The shield should
be tied into the bus ground at only
one point.
supply more than enough current
for the devices in the network.
Rate) ≤ (scans per seconds). The
Monitor section of the Observer
application displays these values.
B-3
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