CHAPTER 1: SYSTEM DESCRIPTION
DUAL PULSE 125
STORED ENERGY RESISTANCE WELDING POWER SUPPLY
1-4 990-270
Indicators and Displays
Dual Pulse 125 Indicators and Displays
A READY INDICATOR - The green LED (light emitting diode) indicator lights when power
supply is ready and welding is permitted. Welding is allowed only when the capacitors are
properly charged and
WELD is selected. The READY INDICATOR will not light in the
PROGRAM State.
B SCHEDULE NUMBER DISPLAY - Indicates the currently selected Schedule Number. Press
SCHEDULE ▲▼ to select Schedules 0 through 7. The SCHEDULE NUMBER DISPLAY is
also used at power up to briefly display the first digit of the Software Version Number. The
125DP will then go to the RUN State and display the last Schedule saved in memory.
C ENERGY DISPLAY - Indicates Energy setting for the currently displayed schedule number.
Energy settings are shown as a percent of total energy, 125 watt-seconds. PERCENT ENERGY
can be set from 0.6% to 100%. The 1st Pulse %Energy is always displayed in the Run State.
The 2nd Pulse %Energy is displayed when the 2nd Pulse Indicator is flashing in the Program
State.
D 2ND PULSE INDICATOR - Flashes when 2ND PULSE is pressed and the power supply is
placed in the PROGRAM State. The 2nd Pulse %Energy is only displayed when the 2nd Pulse
Indicator is flashing. In the RUN State, the 2nd Pulse Indicator will stay lit to indicate that a 2nd
Pulse has been programmed.
NOTE: The digital display may not increment in continuous steps, however, it will always be within ±
0.6% of the desired setting. At power up, the Energy Display will briefly display the last 3 digits
of the Software Version Number and then the status of the Schedule Protection Feature. In the
PROGRAM STATE, when
1ST PULSE is pressed, the Energy Display is used to display
SQUEEZE TIME.
E 1ST PULSE INDICATOR - Flashes when 1ST PULSE is pressed and the power supply is
placed in the PROGRAM State. In the RUN State, the 1st Pulse Indicator is always lighted.
F FIRING SWITCH INDICATOR - The red decimal point, next to the SCHEDULE NUMBER,
will light when the Force Firing Switch in the weld head closes. This feature is a convenience
when setting the electrode firing force.
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