Weld Schedules
MedWeld 4000 Operator’s Guide
Modified: 9/17/08
4 - 19
M-032116 Programs #T03300, #T02300 and #T02400
Special Functions
78
PROCESS WELD FAULTS
This function provides a one-cycle delay in the weld schedule. It
asks the MedWeld 4000 to indicate any faults that may have been
generated so far in the schedule.
The control normally processes all fault conditions at the
end
of the
weld schedule. This function allows forcing the control to process
fault conditions before it completes the weld schedule. It should
appear in the weld schedule BEFORE any functions that check fault
status or require current weld data.
Cautions:
This function also causes the control to calculate the
voltage, current and power factor averages and the C-
factor for the weld. It also terminates the weld summary
data collection, to assure the integrity
of the weld data collected.
This function only processes the weld data: It does
NOT update the FAULT and ALERT outputs. These
outputs will be updated when the control executes the
function TURN ON WELD COMPLETE OR at
the end of the weld schedule.
This function will be executed only once by the
processor. If it appears more than once in the schedule,
it will be executed the
first
time it appears in the weld
schedule.
89
VERIFY CYLINDER #n IS OUT OF RETRACT
(n = 1-2)
This function tells the control to check that the selected cylinder is
out of retract. If the cylinder is NOT out of retract, the control will
abort the schedule and generate a RETRACT PILOT fault.
61
ABORT IF NO INITIATE FOR nn CYCLES
This function tells the control to verify that the weld initiate has
remained active. The control waits the number of cycles
programmed while checking the initiates. If the initiates are not
present at any time while it is waiting, the control will abort the
sequence and generate the WELD INITIAT NOT PRESENT fault.
