Nelweld Operations and Service Manual
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Nelweld Accessory and Kit Numbers
Kit Name
Model
Number
Part
Number
Caster Kit, 6” 4000 512-387-000
Caster Kit, 8” 6000 512-387-001
Gas Valve Control Kit All 512-387-015
Stud Feeder Interface Kit All 512-387-040
Second Output Kit 4000 512-387-010
Second Output Kit 6000 512-387-011
RS-232 Port Kit All 512-387-020
Nelware Remote Control Kit All
Contact Nelson
Nelware Process Monitoring Kit
All
Contact Nelson
Nelware Diagnostic Kit All
Contact Nelson
Nelware Calibration Kit All
Contact Nelson
Isolated RS-232 Cable All 721-310-009
4.9 Compatible Equipment
4.9.1 Two-Wire Controlled Guns
The Nelweld power supply line is compatible
with two-wire welding guns employing Nelweld
Lift Technology.
Nelweld Gun Description
Part
Number
Standard Duty, Drawn Arc – NS40, two-wire
751-692-000
Short Cycle – NS40SC, two-wire 751-695-000
Heavy Duty – NS20AHD, two wire 751-693-000
Note that a three pin connector is used
even though welding guns only use two
wires.
4.9.2 Three- and Four-Wire Controlled Guns
Nelweld power sources are compatible with all
existing Nelson stud welding guns with three- and
four-wire control with the use of a converter.
4.9.3 Stud Feeding System Interface
With the Stud Feeder Interface Kit installed, the
power source can trigger any feeding device
whose trigger requirements meet the following
specifications:
Output Type Isolated Contact
Open Circuit Voltage Max 250VAC, 220VDC
Rated Resistive Loads
.40A @ 125VAC
2.0A @ 30VDC
Rated Inductive Loads
.20A @ 125VAC
1.0A @ 30VDC
Max Operating Current -
Resistive
3A (AC)
3A (DC)
Max Operating Current -
Inductive
1.50A (AC)
1.50A (DC)
Max Switching Capacity -
Resistive
50VA, 60W
Max Switching Capacity -
Inductive
25VA, 30W
4.10 Limitations
4.10.1 Duty Cycle
The duty cycle limits for the Nelweld 3000, 4000,
5000, and 6000 can be seen in the Stud Weld Rate
table.
4.10.2 Weld Cable Length
The diameter and length of the weld cable limit
the amount of current that can be supplied to the
stud welding arc. For best performance, use the
largest diameter cable, only use as much cable
length as needed, bundle the gun and ground
cables together where practical, and do not coil
excess cable.
The following graphs define cable length limits
for each machine in the product line.
The total weld length includes the work lead.
Thus if welding with 200 feet of gun cable and
200 feet of ground cable, then the total cable
length is 400 feet.