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CHAPTER 1: DESCRIPTION
CD-A DUAL PULSE RESISTANCE WELDING POWER SUPPLY
990-430
1-3
To “edit”
RUN
,
MENU
, or
LIMITS / COUNTERS
screens, press the appropriate
PULSE 1, PULSE 2,
SQZ/HOLD, LIMITS/COUNTERS
or
MENU
button
until the screen changes to
BLACK
indicating
you’ve entered “edit” mode.
Highlight the item being edited in white as shown
at the right. Edit values using
the ▲▼
(up/down)
arrows keys, then advance to the next field.
When finished, press the
SAVE
button, which will
"save changes" and return the display to the
BLUE
run mode screen. You’re ready to weld!
NOTE:
If you edited the limits screen, you will
need to press
RUN
after
SAVE
to enable the weld
mode.
See
Chapter 3,
Using the Display Screens
for details on using these features.
•
The schedule lock feature restricts welding to the one selected weld schedule and prevents changing
that schedule.
•
The program lock feature allows the use of all 63 schedules, but does
not
allow editing schedule
values.
•
The digital display allows operators to set welding energy accurately and quickly.
•
The Power Supply is compatible with both manually and air actuated weld heads with 1-level or 2-
level foot switches.
•
The Power Supply is compatible with force fired and non-force fired weld heads. The
SQUEEZE
and
HOLD
delay times are adjustable from
0
to
2,999ms
and
20
to
2,999ms
respectively.
•
A built-in weld counter allows controlling events based on the number of welds completed. The
counter limit provides an output signal when the count equals or exceeds the user-programmable value.
•
The firing circuit is compatible with single pole, double pole or optical firing switches.
•
The energy monitor and lockout prevent poor welds caused by premature firing of the power supply
before the capacitor bank has been properly charged or discharged.
•
The line failure turndown safety feature discharges the capacitor bank when input power is interrupted.
•
The Power Supply is protected from radio frequency and electromagnetic interference, resulting in
reliable operation even in high electrical noise environments. Input switch debounce circuitry
eliminates false triggering.
Detailed instructions on using these features are located in
Chapter 4, Operating Instructions.