CHAPTER 3: USING PROGRAMMING FUNCTIONS
HF25 DC RESISTANCE WELDING SYSTEM
990-333
3-21
Section IV: Using Weld and Monitor Functions
Overview
To ensure accurate, consistent welds, the Control delivers extremely precise pulses of energy to the weld
head. Each pulse is comprised of weld-time and weld-energy (
voltage
,
current
, or
power
) values pre-
programmed by the user. The Control is a closed-loop welding control using internal and external
sensors to measure the weld-energy delivered to the weld head. Weld-energy feedback instantly goes to
the Control's logic circuits that actively correct the pulse to compensate for any variation in part
resistance. The Control also has several monitor functions that give you remarkable control over the
welding and production process. Together, these features ensure precise, consistent welds, higher
productivity, a lower rejection rate, and longer electrode life.
Before
operating the Control, it is important to know how to match the Control's capabilities to specific
weld applications. This chapter provides
Weld
,
Feedback
, and
Monitor
details in the following
sections:
•
Weld Schedules
−
Single-Pulse
−
Upslope/Downslope
−
Dual-Pulse
•
Programmable Feedback Modes
•
Weld Monitor
−
Active Part Conditioner
−
Energy Limits
−
Pre-Weld Check
Chapter 4, Operating Instructions
, contains the step-by-step instructions on how to program each of the
functions above.
Summary of Contents for HF25A
Page 9: ...HF25D DC RESISTANCE WELDING SYSTEM 990 333 ix ...
Page 10: ......
Page 20: ......
Page 84: ...CHAPTER 6 CALIBRATION HF25D DC RESISTANCE WELDING SYSTEM 990 333 6 4 Final Calibration Setup ...
Page 113: ......
Page 129: ......
Page 153: ......
Page 171: ......