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All the following parameters that indicate times are expressed in periods, also called mains cycles. The
mains frequency defines the duration of a period.
Mains frequency of 50 Hz 1 period = 20 ms
Mains frequency of 60 Hz 1 period = 16.6 ms
WORK MODE
The WORK MODE parameter defines the mode for adjusting the welding current of the program: either
power percent (PW%), constant current (IK) or fixed (FIX). Welding time WELD 1 is carried out
according to the adjustment mode set in this parameter. PRE-WELD and POST-WELD times are
always run with the power percent or fixed adjustment.
CONTROL MODE
The CONTROL MODE parameter permits to select the control mode of the desired welding current.
NO No control is performed on the supplied welding current.
CUR TE500 permits to set the welding current min. and max. limits.
DEG TE500 permits to set the min. and max. limits of the welding current conduction angle.
For further information, please read the relevant paragraph.
SQUEEZE 1
The 1st SQUEEZE time or first squeeze determines the time needed by the electrode to move down.
If a pneumatic circuit is present with low-pressure squeeze, such time is that which determines the
duration of the squeeze at low pressure, i.e. the interval of time that elapses from the beginning of the
head descent to the application of the welding force. The set value must be long enough to allow the
electrodes to reach the workpiece to be welded.
In a standard pneumatic circuit, such time is the interval from the beginning of the head descent to the
beginning of the welding. The set value must be long enough to allow the electrodes to achieve the
proper clamping force, before the welding begins.
During the first squeeze time, it is possible to end the cycle if the start cycle signal is deactivated.
SQUEEZE Optional
The SQUEEZE time is a wait time like that of the 1st SQUEEZE. It is necessary for welding machines
with low-pressure squeeze functions. In this case, such time determines the interval from the
application of the welding force onto the electrodes (energizing of the SV2 valve) to the beginning of the
welding. It should be long enough to allow the electrodes to achieve the proper clamping force before
the welding begins. An inadequate adjustment of such time produces sparks among the electrodes and
the sheet when the welding begins, causing quality inconsistencies. If the welding machine does not
contemplate low-pressure squeeze, deactivate this parameter (see Installation Menu). Otherwise it will
be added to the 1st squeeze time. If the start cycle signal is deactivated, during the squeeze time, the
sequence is interrupted.
DESCRIPTION OF THE PARAMETERS
