
CHAPTER 4: INTRODUCTION TO FEEDBACK MODES AND MONITORING
HF-2500A HIGH FREQUENCY WELD CONTROL
4-2
990-371
Section II. Weld Monitoring
Introduction
The Power Supplies feedback sensors not only control weld energy output, but they can also be used to
monitor each weld. The Power Supplies
MONITOR
features allow you to view graphic representations of
welds, visually compare programmed welds to actual welds, look at peak or average energy values, set
upper and lower limits for welds, and vary the time periods for these limits during the weld pulse. These
limits can be used for several purposes. Common uses for
out-of-limits
welds are to stop a weld, or to
trigger a relay to remove parts with bad welds from the production line. These functions are accessed
using the
MONITOR
buttons on the front panel. To use these functions, see
Chapter 5, Operating
Instructions
.
PEAK and AVERAGE MONITORING
The Power Supply is
always
monitoring both the
PEAK
and
AVERAGE
of current, voltage,
power, and resistance at the same time. When you press the
PEAK
↔
AVERAGE
key,
the top line in the LCD simply toggles back and forth so you can
view
either
PEAK
or
AVERAGE
values whenever you choose.
Summary of Contents for HF-2500A
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