Bad node, Troubleshooting & repair – Lincoln Electric INVERTEC V350-PRO SVM152-A User Manual
Page 51
V350-PRO
SERVICE FACILITY
CORRECTIVE
ACTION
CORRECTIVE
ACTION
DESCRIPTION/
DEFINITION
47
“bad node” “####”
Electrical "glitch" on the
V/F signals from the main
switch board to the
control board.
The selected weld mode
does not exist in the weld
table that is presently
loaded in the machine.
Possibly caused by an
external electrical
"noise" or signal level.
Make sure the V350-Pro
is grounded correctly.
The machine is self
clearing when condition
ceases.
Press the Mode Select
button to select a
different welding mode.
There may be a problem
with the V/F signals from
the main switch board to
the control board.
Perform the Main Switch
Board Test.
The control board may
be faulty.
Perform the SPI Cable
Resistance and Voltage
Test.
The control board may
be faulty.
TROUBLESHOOTING & REPAIR
F-13
F-13
FAULT CODES
NOTE:
If more than one fault message is being displayed, perform all the checks for the faults
before replacing the printed circuit board