Part No. 729-110-040 Rev. 1.41 | June 2016
© 2016 Nelson Stud Welding, Inc. All Rights Reserved.
18
3.3.1 Connection of Welding Cable
The Gun Welding Cable plugs into the Gun Welding Cable socket of the Arc Charger.
Note that the procedural safe operation of the system can only be guaranteed when the NS-40 and light duty
guns are connected.
GUN WELDING CABLE CONNECTION (X1)
Align and insert the locking pin of the Gun Welding Cable plug into the locking groove of
the Gun Welding Cable socket.
Turn to the Gun Welding Cable plug 1/3 of a turn to the right clockwise to secure the
connection.
Connect Gun Welding Cable to X1 for straight polarity and to X3 for reverse polarity.
3.3.2 Connection of Gun Control Cable
The Gun Control Cable socket permits the connection of the control cable to the Arc
Charger unit. The signals to control the gun are transmitted via the control cable.
Gun Control Cable Connection (X2)
Silver Pin: White Wire
– Broad Pin
Brass Pin: Black Wire
– Narrow Pin
3.3.3 Dual Connection of Work piece Ground Cable
The welding current return takes place via the Work piece Ground Cable, which must be
connected as follows to one of the Work piece Ground Cable sockets on the front panel of
the Arc Charger.
Work piece Ground Cable Dual Connection (X3)
Connect the Work piece Ground Cable plug into one of the proper Arc Charger sockets.
Turn the Work piece Ground Cable plug 1/3 to the right clockwise to secure the connection.
Place the 2 ground clamps on the opposite ends of the weld area to minimize arc blow.
Prior to any connection work, the Arc Charger welding unit must be
switched off and the input power switch must be in the >>0<< position.
Summary of Contents for ArcCharger N550C DOMESTIC
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