CHAPTER 5: SETUP SOFTWARE
UB25 LINEAR DC RESISTANCE WELDING CONTROL
5-6 990-665
Section IV. System Settings
Waveform Check and Weld Fire Lockout
Even though the Power Supply optimizes the output pulse, misaligning parts or operating at the outer
edges of the Power Supplies operational range may degrade the waveform. The WAVEFORM CHECK
feature, which includes STABILITY CHECK and ENERGY CAPACITY LIMIT, can be used to confirm
that the proper waveform was produced.
The WELD FIRE LOCKOUT feature guarantees that the capacitor bank is charged to a user defined
percentage before the Power Supply is allowed to fire. This advanced feature prevents poor welds caused
by operating at too high of a repetition rate, which can deplete the capacitor bank charge.
These features are totally independent of Weld Monitor features described in Chapter 3 of this manual.
Waveform Check ON/OFF
1 From the MAIN MENU, press 0 to get to
the WAVEFORM CHECK menu.
2 Press the 1 key to toggle WAVEFORM
CHECK ON or OFF.
Stability Check % Limit Setting
1 From the WAVEFORM CHECK menu,
press the 2 key to access the
STABILITY CHECK % LIMIT screen.
2 Use the numeric keypad to enter the %
limit. This limit is the allowable average
deviation from the set point for the weld
pulse after the delay period.
3 Press MENU
WAVEFORM CHECK menu. The
STABILITY CHECK % LIMIT line
will display your programmed setting
along with deviation readings from the
Pulse 1 and Pulse 2 of the most recent
1. WAVEFORM CHECK : ON
2. STABILITY CHECK % LIMIT : 07 % 0/ 0
3. STABILITY CHECK DLY(ms) : 1.0 msec
4. ENERGY CAPACITY % LIMIT : 05 % 0/ 0
5. WELD FIRE LOCKOUT CHRG% : 95 % 0
NUMBER Select, MENU Main menu
STABILITY CHECK % LIMIT: 07
NUMBER Change, MENU Previous menu
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