Gullco GK-200-RLx-A - Manual (Page 9)

7
Automatic functions of the AutoWeld “KAT” ® Carriage Control:
This section refers to parameter settings and values. Details of accessing and changing these
settings and values can be found later in this manual.
1. The automatic cycle is initiated by placing the Run/Stop switch in the Run position and the
Forward/Neutral/Reverse switch in either the Forward or Reverse position. The cycle then
proceeds to section 2.
2. Momentarily looks at the Forward/Neutral/Reverse direction switch and the limit switch
signals.
a. If the switch is in the Forward position and the forward limit switch is activated, the
cycle aborts, resets and displays “End”.
b. If the switch is in the Reverse position and the reverse limit switch is activated, the
cycle aborts, resets and displays “End”.
c. Otherwise the cycle proceeds to section 3.
3. Momentarily looks at the Forward/Neutral/Reverse direction switch and the Weld Direction
parameter. The setting of the Forward/Neutral/Reverse switch is ignored from this point
onward, until it is placed in the Neutral position or the Run/Stop switch is placed in the Stop
position.
a. If the switch is set to the same direction as the Weld Direction parameter, or if the
Weld Direction parameter is set to Forward & Reverse, then the cycle proceeds to
section 4.
b. If the switch is set to the opposite direction as the Weld Direction parameter, then the
cycle proceeds to section 20.
4. Momentarily looks at the settings of the Advance To Center Limit Switch parameter and the
Stitch Weld Selection parameter.
a. If either the Advance To Center Limit Switch parameter is set to On, or the Stitch
Weld Selection parameter is set to center limit switch (CLS), then the cycle proceeds
to section 5.
b. Otherwise the cycle proceeds to section 7.
5. The “KAT ”
®
carriage travels at full speed in the direction initially set by the
Forward/Neutral/Reverse switch (detected and recorded at the onset of the cycle), until the
activation of the center limit switch (indicating the weld start location), at which point the
travel ceases immediately. The cycle then proceeds to section 6.
6. A set timing delay of 0.7 seconds elapses, allowing the carriage to come to a complete stop,
before the cycle continues to section 7.
7. The Arc Signal Relay is energized (using output port CN81) and the Travel Motion Delay is
initiated. The cycle then proceeds to section 8.
8. Upon completion of the Travel Motion Delay, the “KAT ”
®
carriage starts to travel in the
direction set by the Forward/Neutral/Reverse switch (detected and recorded at the onset of
the cycle), at the speed set by the potentiometer. The cycle then proceeds to section 9.
9. If the Stitch Weld Selection parameter is set to:
a. Off and the Continual Forward & Reverse parameter is set to Off - then the cycle will
continue until an event described in section 16 occurs.
b. Off and the Continual Forward & Reverse parameter is set to On - then the cycle will
continue as described in section 13.
c. Center Limit Switch - the weld travel will continue until the deactivation of the center
limit switch at which time the weld travel will cease and if the Weld Back Track has
been set to a numerical value, it will travel in the opposite direction for this distance
while welding. The carriage will then stop and initiate a Crater Fill Delay timing cycle.
The cycle will then proceed as per section 10.