Tweco WC 1 Weld Sequence Controlle - Manual (Page 10)

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Cycle Complete will be asserted at the end of the weld cycle when the Arc Active Signal has been
cleared by the power source. The Cycle complete will remain set until the next Cycle start is
asserted. To disable any weld event set the associated time to zero.
3.4 Spot Weld Mode
If the Spot Time mode is enabled the Taper Event will be started at the end of the Spot Weld Time.
Then the normal end events will be executed. In this mode the Cycle Start must be active until the
end of the weld cycle. The Controller will not reset the weld event until the Cycle input has been
cleared. The Cycle complete will be asserted when the Arc Active Signal is cleared. The Cycle
Complete Output will be cleared when the Cycle start is cleared.
3.5 Arc Active Test
If the Arc Active input from the power source is not active within the user specified start time after
the cycle start has been asserted, the controller will clear the weld event and reset the Ready
Output. The Cycle Start input must be cycled off before the Ready Output can be asserted. If the
Cycle start input is cleared prior to the weld event the controller will terminate the arc and will not set
the Cycle Complete output.