Lincoln Electric IM840 ETHERNET_DEVICENET MODULE K2436-1 - Manual (Page 26)

B-6 TROUBLESHOOTING B-6
ETHERNET / DEVICENET MODULE
Observe all Safety Guidelines detailed throughout this manual
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.
CAUTION
PROBLEMS
(SYMPTOMS)
POSSIBLE
CAUSE
RECOMMENDED
COURSE OF ACTION
Poor Welding
1. Analog Scans Between Updates
2. Voltage Sense Leads
3. Analog Hysteresis
4. Correct Schedule selected
5. Limit Errors
1. Using DeviceNet Observer select
Configuration under the
DeviceNet menu. Verify that
Analog Scans Between Updates
is 1/4 of I/O Scans/Sec value.
2. Verify Voltage sense leads are
installed correctly.
3. Using DeviceNet Observer select
Configuration under the
DeviceNet menu. Verify in Analog
Input Channels that the Hysteresis
settings are all 0.
4. Using DeviceNet Observer verify
that the correct schedule is select-
ed as active.
5. Verify all welding set point values
are within limits.
For more trouble shooting of a DeviceNet network the following references should be used.
Allen-Bradley Cat. Number. DN-6.7.2
Rockwell Automation Document 8842
ODVA web site (www.odva.org)
DEVICENET