Gullco GP-250 - Manual (Page 10)

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9) is set to “1”, the Crater-Fill/Slope-Out Delay is used to keep the arc signal active for a
programmable duration, after the rotation has ceased, thereby filling in the weld crater.
1-5-1. Example, the Stitch Weld Angle parameter is set to 20º and the No-Weld Angle is
set to 40º. The weld rotation would stop at 20º, 80º, 140º, 200º etc.
1-6. Upon completion of the Crater-Fill/Slope-Out Delay (P. 4), the optional arc signal relay will
de-energize and the programmable Post Weld Delay (P. 5) timing cycle will commence.
This allows time for any burn-back and or post-flow functions, prior to the table rotating to
the start of the next weld.
1-7. Upon completion of the Post Weld Delay, the no-weld rotation will start in the forward
direction at full speed.
1-8. The no-weld rotation will stop every time that the angular rotation reaches an
accumulative value of the sum of the programmable Stitch Weld Angle (P. 7) and the
programmable No-Weld Angle (P. 8). A fixed delay of 0.7 seconds will then commence.
This delay ensures that the turntable has come to a complete stop, prior to starting the
next weld.
1-8-1. Example, the Stitch Weld Angle parameter is set to 20º and the No-Weld Angle is
set to 40º. The no-weld rotation would stop at 60º, 120º, 180º, 240º etc.
1-9. Upon completion of the fixed delay, the optional arc signal relay will be re-energized and
the programmable Rotation Start Delay (P. 2) timing cycle will commence again. This
provides time for any pre-flow function as well as allowing the arc to establish prior to
commencing the weld motion.
1-10. Upon completion of the Rotation Start Delay (P. 2), the weld rotation will start to travel in
the forward direction at the speed set by the Speed Adjustment knob.
1-11. The cycle will continue as described between section 1-5 and section 1-10 until the total
angular rotation reaches the value set by the programmable Degrees Of Rotation
parameter (P. 3), at which point the cycle will close down as described in section 1-12.
1-12. Regardless of whether the automatic cycle is performing a continuous weld or a stitch
weld routine, when the angular rotation reaches the same value as the programmable
Degrees Of Rotation parameter (P. 3), the rotation ceases and the programmable Crater-
Fill/Slope-Out Delay (P. 4) timing cycle will commence. When the programmable Weld
Cessation variable (P. 9) is set to “1”, the Crater-Fill/Slope-Out Delay is used to keep the
arc signal active for a programmable duration, after the rotation has ceased, thereby filling
in the weld crater
1-13. Upon completion of the Crater-Fill/Slope-Out Delay (P. 4), the optional arc signal relay will
de-energize and the programmable Post Weld Delay (P. 5) timing cycle will commence.
This allows time for any burn-back and or post-flow functions, prior to the retraction of the
optional pneumatic gun positioning slide (where applicable).
1-14. Upon completion of the Post Weld Delay, the optional gun slide solenoid relay will be de-
energized and the automatic cycle will be complete. “End” will be displayed to indicate the
completion.