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Premature Weld Termination
Weld Termination Due to End of Weld/Ground Detect
An End-of-Weld signal from the thruster limit switches and a Ground Detect signal
to the J602 connector cause the Weld portion of the cycle to terminate. A character-
istic of this type of weld termination is Hold Time. If the Hold portion of the cycle is
executed, then the weld was terminated by an end of weld/ground detect error. Figure
6-5 illustrates this condition.
PART DOWNSTROKE DOWNSTROKE WELD TIME WELD DIST WELD ENERGY HOLD TOTAL TOTAL
COUNT TIME DIST PRESSURE 1 PRESSURE 1 PRESSURE 1 TIME CYCLE TIME STROKE
55 0.882 1.7928 0.015 0.0006 6.5 1.000 1.897 1.8094
Figure 6-5 Weld Termination Due to End of Weld/Ground Detect
Weld Termination Due to Trigger Lost
If the trigger type is set to Maintained, loss of the trigger signal causes an
immediate termination of the cycle when the ultrasound is applied. This
results in a shortened weld and zeroes for both Hold Time and Hold Distance.
Figure 6-6 shows a cycle terminated by a lost trigger input.
Figure 6-6 Weld Termination Due to Trigger Lost
PART DOWNSTROKE DOWNSTROKE WELD TIME WELD DIST WELD ENERGY HOLD TOTAL TOTAL
COUNT TIME DIST PRESSURE 1 PRESSURE 1 PRESSURE 1 TIME CYCLE TIME STROKE
55 0.882 1.7928 0.015 0.0006 6.5 0 1.897 1.8094
Page 89
Dukane Manual Part No. 403-575-00
Section 6 - Troubleshooting