WTC MedWeld 5000, Technical Reference Manual

Page: 64 / 120

Weld Schedules
4 - 12 MedWeld 5000 Technical Reference Manual
M-032170
Weld Functions that
Adjust Current
Functions #40–43 use AVC firing to adjust weld current. Function #45
provides firing in constant current (ACC).
40 UPSLOPE nn CY nn %I TO nn %I
41 DOWNSLOPE nn CY nn %I TO nn %I
42 PRESLOPE nn CY nn %I TO nn %I
43 POSTSLOPE nn CY nn %I TO nn %I
45 SLOPE nn CY nnnn0 AMPS TO nnnn0 AMPS
These functions provide weld current that starts at the first value and
slopes linearly to the second value over the number of cycles specified.
Every function fires for the number of cycles specified. For example,
the function
40 UPSLOPE 30 CY 45% I TO 65% I
tells the control to fire one cycle at 45% of the maximum available heat.
Then, over the next 29 cycles, gradually increase the heat provided to
65%.
41 DOWNSLOPE 30 CY 65% I TO 45% I
This function tells the control to fire one cycle at 65% of the maximum
available heat. Then, over the next 29 cycles, gradually decrease the
heat provided to 45%.
42 PRESLOPE 30 CY 45% I TO 65% I
tells the control to fire one cycle at 45% of the maximum available heat.
Then, over the next 29 cycles, gradually increase the heat provided to
65%.
43 POSTSLOPE 30 CY 65% I TO 45% I
tells the control to fire one cycle at 65% of the maximum available heat.
Then, over the next 29 cycles, gradually decrease the heat provided to
45%.
45 SLOPE 30 CY 5000 AMPS TO 10000 AMPS
This function tells the control to fire one cycle at 5000 AMPS. Then,
over the next 29 cycles, gradually increase the heat provided to 10000
AMPS. This function is an open function, it can either slope "up" or
slope "down" depending on how the operator enters the function.
However, by defining the slope as an impulse (Function
IMPULSE=
nn HEAT CY, nn COOL CY (nn=1-99)
appears before this function
in the schedule), the timer unit gradually increases the energy provided
by each impulse, until it has sloped to the desired energy.