Tweco PakMaster 50XL Plus - Manual (Page 23)

Manual 0-2744 17 SECTION 3: INSTALLATION PROCEDURES
off energy, which causes difficult starting and in-
creased chance of RF interference.
5. Make sure work cable and ground cables are properly
connected. The work cable must have a solid connec-
tion to the workpiece or cutting table. The connec-
tion must be free from dirt, grease, oil and paint.
A-02459
Make a solid work cable
connection to the work-
piece or cutting table
Work Cable
And Clamp
Figure 3-12 Power Supply Work Cable Connection
3.11 Tip Saver/Drag Cut Sensing
Circuit
This power supply is equipped with a Tip Saver/Drag
Cut Sensing Circuit which cuts current back to 35 amps if
the tip touches the workpiece. The purpose of this is to
prolong the life of the tip.
If the user does not want the current to be decreasedwhen
the tip touches the workpiece, the sensing circuit can be
defeated by closing switch SW1-1 on the Gate/Logic PC
Board. Slide top white toggle on SW1-1 to the right to
close circuit.
A-02569
Gate/Logic PC Board
SW1
1 2
ON
Figure 3-13 SW1 Switch Location
WARNING
Tip life will be considerably shortened if tip is re-
peatedly touched to the workpiece without the Tip
Saver/Drag Sensing Circuit feature active.