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PRESSURE Optional
This parameter, expressed in bar, expresses the welding pressure value. The set value must be such
that it guarantees a proper clamping force during the welding cycle. An inadequate adjustment of such
value produces sparks between electrodes and sheet when the welding begins.
FORGE DELAY Optional
The FORGE DELAY parameter is used exclusively with pneumatic circuits that contemplate the forging
function. Such function permits to increase the electrode force during the welding cycle.
The parameter describes the time that elapses from the beginning of the welding process to the
application of the forging force onto the electrodes by means of solenoid valve SV3. If the value is set
to zero the forging function is disabled, valve SV3 will be activated at the beginning of the squeezing
phase.
PRE-WELD
The PRE-WELD parameter indicates the duration of a current flow that can be carried out before the
welding process so as to pre-heat the workpiece to be welded. This parameter is expressed by three
digits since it can be set with half-period precision. If this parameter is set to 0, the pre-weld will not be
carried out. Pre-weld is carried out with a current adjustment equivalent to that indicated in the PRE-
POWER parameter (PRE-WELD CURRENT).
PRE-POWER (PRE-WELD CURRENT)
The value expressed in this parameter indicates the power used for carrying out the pre-weld.
COLD 1
The COLD 1 parameter indicates the time that elapses from the pre-weld (PRE-WELD) to the weld
(WELD 1).
If the pre-weld is deactivated (that is, when PRE-WELD time = 0), this cooling time is not carried out.
SLOPE UP
The SLOPE UP parameter describes the time for attaining the programmed welding current value. The
starting value of this slope always corresponds to the minimum current, whereas the final value
corresponds to the current value set at parameter CURRENT 1 (WELDING CURRENT). The slope
inclination is automatically calculated by the microprocessor according to the set values. The SLOPE
UP time is added to the welding time (WELD 1).
WELD 1 (WELDING TIME)
The WELD 1 parameter indicates the welding current flow duration. It is carried out with the same
power value set at parameter CURRENT 1 (WELDING CURRENT). When the pulse operating mode is
activated, this parameter indicates the duration of each pulse. This parameter is expressed by three
digits since it can be adjusted with half-period precision.
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