Lincoln Electric INVERTEC POWER WAVE 450 SVM112-B Service Manual page 72

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TROUBLESHOOTING GUIDE
PROBLEMS
(SYMPTOMS)
The voltage and or wire feed
speed will not adjust to user satis-
faction.
The voltage and or wire feed
speed can be adjusted on the
wire feeder, but the changes are
not shown on the Power Wave
display.
The Dual Procedure overlay is
installed, and the user cannot
change from procedure "A" to
procedure "B" or vice versa.
If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, con-
tact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call 1-
800-833-9353.
TROUBLESHOOTING & REPAIR
POSSIBLE AREAS OF
MISADJUSTMENT(S)
FUNCTION PROBLEMS
1. Certain limits may have been
imposed on the welding para-
meters. Refer to the Limits
Overlay section of this manual.
1. When the Limits Overlay or the
Setup Overlay is installed in
the Power Wave, the machine
and wire feeder displays do
not match. These overlays
cannot be used for welding.
2. If two wire feeders are con-
nected to the Power Wave,
only one of the feeder's set-
tings can be displayed on the
Power Wave at one tme. Pull
the trigger of the wire feeder
whose settings you want dis-
played on the Power Wave.
1. Check for proper installation of
the Dual Procedure overlay.
2. Check the Dual Procedure Gun
Trigger or separate dual proce-
dure switch.
CAUTION
POWER WAVE 450
Observe Safety Guidelines
detailed in the beginning of this manual.
RECOMMENDED
COURSE OF ACTION
NONE
1. Try the other wire feeder
receptacle. If the problem is
solved, the initial receptacle or
associated wiring is faulty.
2. If the problem persists with
both wire feeder receptacles,
check or replace the wire feed-
er and control cable.
3. If the wire feeder and control
cable are OK, then perform the
Serial Loop Wiring Harness
Test.
4. The display board may be
faulty. Replace and perform
voltage calibration.
5. The control board may be
faulty. Replace and perform
voltage calibration and current
calibration.
1. Perform the Serial Loop
Wiring Harness Test.
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