Dukane Ultrasonic Generator 403-575-00 - Manual (Page 107)

Press Interface Board
This board is also known as the Options Slot Board as
shown in Figure 10-4, Interpreting the Model Number.
Board location is shown in Figure 3-6.
Each option is described in general terms:
P4 - Dual Pressure Only P/N 110-4426
Dual pressure is a feature that is exclusive to Dukane press
systems. It increases clamp force to improve the plastic
melt and flow during the weld portion of a cycle and as-
sures tight assembly during the hold portion by welding
parts at one pressure and holding them together at a second,
higher pressure. Dual pressure can also be used to begin
a weld at one pressure, finish the weld at a second, higher
pressure, then hold the assembly together at the second
pressure.
P5 - Dual Pressure with Distance P/N 110-4427
Dual pressure is a feature that is exclusive to Dukane press
systems. See the P4 description above.
Weld by distance mode controls the melt collapse distance
to ensure that the same volume of material melts on each
part. The result: finished joint strength is consistent.
All distance parameters - downstroke, trigger delay, weld
hold, absolute weld, total weld, and total stroke distance -
are monitored to show upper and lower limits for bad and
suspect parts. This will verify part quality and uniformity.
Dukane's linear optical encoder has a one-micron resolu-
tion to insure exceptional precision and repeatability.
P6 - EPR/Load Cell with Distance P/N 110-4428
This option offers programmable pressure profiling and
force by interfacing with the EPR (electronic pressure
regulator), pressure transducer, and load cell. Increased
control, repeatability and consistency are benefits.
The electronic pressure regulator and pressure transducer
are components of the same system. The electronic pressure
regulator accepts commands from the generator and sets the
air pressure to the user-selected value. The pressure transducer
senses the pressure and transmits it to the generator via a 4-20
mA current loop.
The force transducer (load cell) senses force exerted on
the part and controls when the ultrasound signal is applied.
See P5 for more information on distance.
P7 - Servo Board P/N 110-4466
This board allows the generator to communicate with the
iQ Servo press.
The Dukane iQ servo-driven welder is different from
pneumatic systems. Instead of using pressure from an air
cylinder, the servo welder uses an electrical servo actuator
in place of the pneumatic cylinder. Instead of controlling
the force, the servo system controls the speed of the horn
during the weld and hold phases. Typical process control
parameters are ultrasound amplitude, weld distance, weld
speed (constant or profile), hold distance, hold speed, and
static hold time.
Servo systems have taken parts assembly to higher levels
of precision and repeatability.
Page 101
Dukane Manual Part No. 403-575-00
Section 8 - Options