Lincoln Electric IM734 LN-15 WIRE FEEDER - Manual (Page 9)

A-2 INSTALLATION
LN-15 CONTROL CABLE MODEL
A-2
SAFETY PRECAUTIONS
ELECTRIC SHOCK CAN KILL.
• Turn off input power to the power
source at the disconnect switch
or fuse box before working on
this equipment.
• Turn off the input power to any
other equipment connected to the welding
system at the disconnect switch or fuse box
before working on the equipment.
• Do not touch electrically hot parts.
• Do not touch metal portions of the LN-15 work
lead clip when the welding power source is on.
• Do not connect the LN-15 to a non-lincoln tig
power source, a square wave tig power source,
or a plasma cutting power source.
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LOCATION
The LN-15 should be positioned upright on a
horizontal surface. Do not submerge the LN-15 in
water. The best practice is to keep the machine in a
dry environment. When using the LN-15 in severe
weather conditions, place the LN-15 on its side with
the door facing upwards. Keep the door closed.
HIGH FREQUENCY PROTECTION
• To prevent possible damage to the LN-15, do not
connect the LN-15 to non-Lincoln TIG or square
wave power sources. TIG high frequency should
never be applied to the LN-15.
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Locate the LN-15 away from radio controlled machin-
ery. The normal operation of the LN-15 may adversely
affect the operation of RF controlled equipment, which
may result in bodily injury or damage to the equip-
ment.
WELD CABLE CONNECTIONS
ELECTRIC SHOCK CAN KILL.
• Only a qualified electrician should
connect the electrode leads to the
LN-15. Connections should be
made in accordance with all local
and national electrical codes.
Failure to do so may result in bodi-
ly injury or death.
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The size of the electrode cable and work cable must
be sufficient for the maximum weld current and total
cable length used. To avoid interference problems
with other equipment and to achieve the best possible
operation, route all cables directly to the work or wire
feeder. Avoid excessive lengths and do not coil
excess cable. Be sure the connection to the work
makes tight metal-to-metal electrical contact. (See
Table A.1)
ELECTRODE CONNECTION
Route the electrode cable through the strain relief in
the rear of the case. Connect the electrode cable to
the LN-15 connection block using the mounting hard-
ware provided. Secure the cable by tightening the
strain relief.
All units are supplied with an optional pigtail for cus-
tomers that prefer to make a taped and bolted con-
nection externally.
WORK CONNECTION
Connect a work lead of sufficient size between the
proper output stud on the power source and the work.
Be sure the connection to the work makes tight metal
to metal electrical contact. Poor work lead connec-
tions can result in poor welding performance.
POWER SOURCE CONNECTION
To prevent possible damage to the LN-15, do not
connect the LN-15 to non-Lincoln TIG or square
wave power sources. TIG high frequency should
never be applied to the LN-15.
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Recommended power sources are Lincoln Electric
Company constant voltage power sources with
42VAC auxiliary power and a 14-pin connector
receptacle. At the time of printing these include:
• CV-250
• DC-400 • Ranger 9
• CV300-I • DC600 • Ranger 250
• CV-300 • CV-655 • Ranger 305
• CV-400-I • V350-PRO • Ranger 300 DLX
• CV-400 • DC-655 • Commander 300
• Invertec STT II • Commander 500
WARNING
CAUTION
WARNING
Weld Current Total Cable Length
60% Duty (electrode cable + work cable)
Cycle 50 - 100' 100 - 150' 150 - 200' 200 - 250'
(15-30 m) (30 - 46m) (46 - 61m) (61m - 76m)
200 Amps 2 AWG 2 AWG 1 AWG 1/0
300 Amps 1 AWG 1 AWG 1/0 2/0
400 Amps 2/0 2/0 3/0 3/0
CAUTION
TABLE A.1