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CHAPTER 5. OPERATING INSTRUCTIONS
HF28 DC RESISTANCE WELDING SYSTEM
5-4 990-372
8. Press the
COOL
key to enter the amount of time for the cool period after Pulse 1. Use
the numeric keypad to enter the time or use the

arrows. Enter
0.5
milliseconds.
9. Program Pulse 2 by repeating Steps 3 through 7 above using the keys for Pulse 2, entering the
value
0
in each step.
10. Press the
HOLD
key to enter the amount of time for the hold period after the weld. Use
the numeric keypad or the

arrows. Enter a time between
0
and
999
milliseconds.
We recommend at least
50
milliseconds as weld strength is formed in the hold time.