iFEED 742
9 Faults and troubleshooting
EN
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9 Faults and troubleshooting
9.1 General faults
9.2 Error messages at the power source
If the wire feed motor is not working properly, the following messages will be displayed at the power source.
Tab. 6
General faults
Fault
Cause
Troubleshooting
Wire is not fed or not
fed continuously.
Wire is deformed.
Contact pressure for the wire feed
rollers is too high/low.
► Adjust the contact pressure of the
wire feed rollers.
7.4 Setting the contact
pressure on page EN
The wire feed rollers have the wrong
wire diameter.
► Insert wire feed rollers that match
the wire diameter.
7.1 Replacing the wire feed
rollers and wire pressure
rollers on page EN
The wire feed rollers/wire pressure
rollers are worn.
► Replace the wire feed rollers/
wire pressure rollers.
7.1 Replacing the wire feed
rollers and wire pressure
rollers on page EN
The signal cables are loose.
► Check the connection for the
signal cables and replace if
necessary.
Wire feeder motor is defective.
► Have the wire feeder motor
replaced by a qualified
electrician.
The wire outlet and/or wire feed
rollers/wire pressure rollers are dirty.
► Blow out the wire outlet and wire
feed rollers/wire pressure rollers
with compressed air.
The wire feed rollers/wire pressure
rollers are defective.
► Replace the wire feed rollers/
wire pressure rollers.
Fault code
Cause
Troubleshooting
E-800
Pulse encoder fault. Feedback
signal is faulty.
► Check the connection for the
signal cables and replace if
necessary.
E-820
Motor current monitoring (warning).
The set threshold value of parameter
F10 has been exceeded.
► Check that the wire feed path is
not obstructed and clean or
replace if necessary.
E-830
Motor overcurrent. Threshold
reached.
► Check the wire feed path for
impediments; if necessary remove
the clamping points.
► Check motor control lead for
damage and replace if
necessary.
