CHAPTER 3: WELDING SYSTEM SET-UP
MODEL HF2 2 kHz HIGH FREQUENCY RESISTANCE WELDING POWER SUPPLY
990-057
3-5
3
2-Level Foot Switch
- When a 2-Level Foot Switch is pressed to the first level, the HF2
energizes the Air Actuated Weld Head, causing the Upper Electrode to descend and apply force
to the parts. If the Foot Switch is released before the operator presses the Foot Switch to the
second level, the HF2 will automatically return the Upper Electrode to its up position so that
the parts can be repositioned. Once the second level has been reached and the Force Firing
Switch in the Weld Head has closed, Weld Current will flow and the HF2 will automatically
return the Upper Electrode to its up position.
Single Air Regulator Adjustment (Model 80 Series Weld Heads - Figure 3-2)
1
Set the HF2 Weld Control front panel
WELD/NO WELD switch to NO WELD.
2
Turn the Power Switch located on the
HF2 Weld Control rear panel to ON.
After a series of power up screens, the
last RUN screen displayed will appear.
Press the [CHNG] key to access the Weld
Graph RUN screen for the BASIC
WELD function.
3
Turn the Air Regulator Clockwise (CW)
to produce 10 psi on the Pressure Gauge.
4
Press and hold the Foot Switch
completely down to close all switch
levels. The lower right hand corner of
the display should show the status
message STANDBY .
5
Continuing turning the Air Regulator
Clockwise (CW) until the HF2
automatically returns the Upper Electrode
to its "up position". The lower right hand
corner of the display should now show
the status message END if you have
not released the Foot Switch. Release the
Foot Switch.
6
Note:
You have 10 seconds to make the
Air Regulator adjustment or a buzzer
alarm will sound and the HF2 will
automatically return the Upper Electrode
to its up position. The status message
changes from STANDBY to
ALARM FIRING SWITCH . Press
[RUN] to clear the alarm and then repeat
steps 4 and 5.
