Amada HF-2500A, Operation Manual, Page: 53 / 164

CHAPTER 3: SYSTEM CONFIGURATION
HF-2500A HIGH FREQUENCY WELD CONTROL
990-371 3-21
Weld Schedule Definition
Weld Schedule is the name given to each of 99 separate weld profiles stored in the Power Supply,
numbered from 01 to 99 . A weld profile is the graphic representation [or waveform ] of the numeric weld-
time and weld-energy values. NOTE : There is an additional weld schedule numbered 00 , which can be
used as a "scratch pad" to develop new weld schedules.
When time and energy values are entered using the numeric keypad, the Power Supply displays a line-
graph of the weld profile on the LCD screen. You can see the graph change as you enter new time and
energy values.
Weld profiles may be programmed for single-pulse , upslope/downslope , or dual-pulse operation. Weld
schedules may also use special monitoring features of the Power Supply such as Energy Limit, Active
Part Conditioner, and Pre-Weld Check . These features are described later in this chapter.
Weld Sequence Timing
A weld schedule is a unique heat profile programmed in constant current , voltage , or power that is
applied over a fixed time period, to resistance weld different parts. The entire weld can include all of the
following time periods: Squeeze Time, Upslope 1, Weld Pulse 1, Downslope 1, Cool Time, Upslope 2,
Weld Pulse 2, Downslope 2, and Hold Time. The sample dual-pulse profile [or
waveform ] below shows
the weld current and the corresponding position of the weld head. The graph labeled
WELD CURRENT
is
what displays on the LCD when you schedule a weld profile.
Sample Weld Sequence (Dual-Pulse)