SUNSTONE PicoDC - Automatic Control; FORCE; Force Calibration

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Users Guide
Picó
the workpiece. Once the desired force is met, the weld
process is triggered. Upon completion of the sequence,
the weld head will return to the Home Position, ready
for the operator to initiate the next weld. User cong-
ured parameters of the Direct Control weld sequence
include Force, Timing, and Displacement. You must
release the foot pedal in order to make another weld.
Automatic Control
If Automatic Control mode is selected, the weld se-
quence is initiated by pressing the digital foot pedal
switch or by pressing the Trigger Weld button on the
Run screen. User congured parameters of the Auto-
matic Control weld sequence include Force, Position,
Timing, Speed, and Displacement.
Select a mode and the next popup window will appear
accordingly.
FORCE
The second step in the weld head setup pro-
cess is entering the desired weld force (in grams). See
Figure 16.1. Touch the Desired Force box and then en-
ter the desired force using the slider bar or number pad
that will appear in a pop-up window. See Figure 16.2.
The weld head will attempt to achieve this force with
each weld actuation. An upper and lower limit can be
set to trigger an alert if the force lies outside the set
limits for any reason. Allowed forces range from 30g
to 2000g with a 100% duty cycle, and 2001g to 4000g
with a 10% duty cycle.
Force Calibration
The weld head’s force needs to be calibrated every
time a new desired force is set. Ensure the parts to be
welded are in place before performing this step.
In Direct Control, calibration occurs immediately after
setting the desired force. The analog foot pedal is used
to move the electrode to the part to be welded. Once
the desired force is met, the servo is automatically cali-
brated, and setup is resumed.
Figure 16.1. Select the desired amount of force to be
delivered by the weld head in the Force Screen, the second
weld head setup step.
Figure 16.2. When you
touch the Desired Force
box a pop-up window will
appear. You can use the
slider bar or the number
pad to enter the amount
of force you desire,
measured in grams.