CEBORA S.p.A.
16
3.302.155
22/01/04
Correct?
3.3.8
- When start button is released, the wire sticks to the workpiece (ineffective motor
braking).
NOTE
In the power sources covered by this manual, the electronic power source delays ceasing to
generate current while the wire from the torch slows, since although it brakes after welding, the
wire feeder motor still takes some time to come to a complete stop.
This time depends on various circumstances such as the type of torch, size of the wire coil,
type of wire, wire speed during welding, etc.
Thus if the wire sticks to the workpiece at the end of welding, consider the above conditions
and carry out the test that follows.
WIRE FEEDER MOTOR (5) BRAKING TEST.
q
Control board (42), connector J2 terminals 1 and 2 (gnd) = fig. 5.2.1, when the start button is
released, with the power source open-circuit (no wire in the torch). The wire feeder motor
stops immediately (braking time <400 msec.).
YES
NO
♦
If you encounter fig. 5.2.2 (the motor slows from its own inertia), the braking
circuit on the control board (42) does not work properly, replace control board
(42).
♦
Make sure that there are no mechanical impediments preventing the wire coil from stopping
despite the braking action of the motor (ex.: sliding by wire feeder rollers, improperly
adjusted roller spring).
♦
Replace the control board (42) and/or motor (5).
