Advanced Software Features
MedWeld 4000 Operator’s Guide
Modified: 9/17/08
7 - 7
M-032116 Programs #T03300, #T02300 and #T02400
Dynamic Squeeze
Functions
Once you define the dynamic current setup parameters, use the
following functions with the test fire function in a weld schedule, as
described below:
80
VERIFY TIPS DOWN EVERY nn CY nn TIMES
This function uses the dynamic squeeze capabilities to verify that
the electrode tips are making full contact with the workpiece. The
control fires one cycle of weld current at 20%. It then monitors the
weld current provided and determines the power factor.
This is compared to the value programmed in the Tips Down
Verified Current setup parameter, (described on page 5-14). If the
primary current detected
exceeds
the programmed value, the
control proceeds to the next function in the weld schedule.
If the current is
less
than the value programmed, the control waits
for the number of cycles programmed (nn CY), then repeats the test
fire. This wait-and-fire process continues up to the programmed
number of tries (nn TIMES).
If the current never reaches the value programmed, the control
generates a TIPS NOT TOUCHING fault and sequences in No
Weld.
81
SLOW CYLINDER TEST EVERY nn CY nn TIMES
This function is nearly identical to Function #80, but reports a
different fault and will schedule in Weld mode even when it detects
a fault.
If the primary current detected by the control
exceeds
that set in the
Tips Down Verified Current: nnnn setup parameter, it proceeds to
the next function in the weld schedule.
If the current is
less than
the setup parameter, the control waits the
number of cycles programmed (nn CY), then repeats the test fire. If
the current never reaches the setup parameter limit, the control
continues the schedule in Weld Mode, but generates a SLOW
CYLINDER fault to indicate the condition.
