Starting The Power Source - Cebora SPOT 3500 Service Manual

CEBORA S.p.A.

3.2.2 - Starting the power source.

System shut off and disconnected from the mains.
q
Connect the cable with the gun at the power source output (9).
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Connect the start signal cable of the gun to the connector (10).
q
Connect the cable to the earth clamp at the output (8) of the power source, and the earth
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clamp to the metal workpiece (see Instruction Manual for fastening procedure).
Close the switch (5).
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♦ System powered, lamp (6) lit, red led (4) off.
Set to manual mode, switch (1) lever to the right.
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Holding the gun free in the air (without touching the sheet metal to be welded), press the gun
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start button.
♦ Voltage on power source output terminals, adjustable from 2 to 7 Vac via the
potentiometer (3), as long as the start button is held down.
Move the gun with the appropriate working tool attached near the workpiece, and press the
q
gun start button.
♦ Current output begins, which may be pulsed, timed or continuous, depending on
the type of work being done, as described in par. 2.3.
Turn the potentiometer (2) or (3) to obtain a level or duration of the current suited to the type
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of job to be done.
♦ The current intensity, in manual mode, or the current pulse duration in automatic
mode (both "single stroke" and "pulse train" modes) changes while working.
Release the gun start button.
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♦ Current is interrupted immediately, or pulse train repetition ends. The current is
actually interrupted only at the end of the half cycle opposite the starting one, but
this delay is not apparent to the operator.
3.302.047
Correct?
YES
Correct?
YES
Correct?
YES
Correct?
YES
Correct?
YES
REGULAR OPERATION.
NO (see 3.3.1-3.3.2).
NO (see 3.3.3).
NO (see 3.3.4-3.3.5).
NO (see 3.3.4-3.3.5).
NO (see 3.3.4-3.3.5).
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