TOP OF STROKE Position
This button is used to set the vertical position to which the welder head returns after completing a weld cycle, as shown in Figure 5-7. A position of 0 corresponds to the highest position (which is also the machine “home” position). A non-zero setting indicates that the Top of Stroke (TOS) position is lower than the home position by the programmed amount. The TOS position can be entered directly by pressing the Position (mm) field. Alternatively, the TOS position can be “taught” by first pressing the DOWN button and selecting the VERT. Jog Speed (Low, Medium, or High), then activating the RUN switches to jog the head to the desired position, and finally pressing the Transfer button to assign the current jog position (displayed in the Jog Pos.. (mm) field) as the TOS Position.
The Move To button is used to move the head to the value displayed in the Position (mm) field. After pressing this button, activate both RUN switches and wait for the value in the Jog Pos.. (mm) field to match the Position
(mm)value.
TRIGGER Position
This button is used to set the vertical position at which the spin tool and machine head reach the programmed weld speeds, as shown in Figure 5-8. If Torque Triggering is disabled (see below), the weld starts at the TRIGGER Position. This position should be set slightly higher than the position at which the parts to be welded start to come in contact. Above this position, the spin motor is being accelerated from rest to the weld RPM and the head is moving rapidly down. After reaching this position, the spin RPM and vertical speeds are maintained at the programmed values. The TRIGGER Position can be entered directly into the Position (mm) field or taught by jogging the head as described in setting the TOP OF STROKE Position.
