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A complete Parts List is available at www.MillerWelds.com
OM-254915 Page 47
6-15. Gun Calibration
Ref. 242 929-C
1
Lit Indicators
2
G.CAL NO
−
Gun Calibration
Gun calibration is used to improve
wire feed speed accuracy. A gun
calibration is recommended during
installation or when changing guns.
To perform a calibration, connect
the gun to the machine and thread
the wire all the way through the
contact tip. Set the drive roll tension
to “5XXX”, the high tension setting
to ensure the drive rolls will not slip.
Next press and hold the trigger.
The machine will begin to feed wire,
but the power will be off. The wire
will first feed at a slower speed and
then at a higher speed. The
machine will display “G.CAL
HOLD” while the calibration is in
progress. When the calibration has
successfully completed the display
with read “G.CAL DONE” for 2
seconds or until the trigger is
released. If the calibration routine is
unable to complete successfully,
wire feeding will stop and the
display will show an error message.
2
G.CAL
NO
1
1
2
Indicates a gun calibration wire
restriction error. This error occurs if the
detected wire speed during a calibration
is too slow. This error will not prevent the
feeder from operating, but wire speed
accuracy may be compromised.
G.CAL ERR.1
G.CAL ERR.2
Indicates a gun calibration wire slip error.
This error occurs if the detected wire
speed during a calibration is too fast.
This error will not prevent the feeder from
operating, but wire speed accuracy may
be compromised.
