Cable Connection; High Frequency Protection - Lincoln Electric POWER FEED 25M NNS Operator's Manual

POWER FEED™ 25M NNS
ELECTRIC SHOCK CAN KILL.
• Turn the input power OFF at the welding
power source before installation or chang-
ing drive rolls and/or guides.
• Do not touch electrically live parts.
• When inching with the gun trigger, elec-
trode and drive mechanism are "hot" to
work and ground and could remain ener-
gized several seconds after the gun trigger
is released.
• Welding power source must be connected to system ground
per the National Electrical Code or any applicable local
codes.
• Only qualified personnel should perform maintenance work.
------------------------------------------------------------------------
LOCATION
For best wire feeding performance, place the POWER FEED™
25M NNS on a stable and dry surface. Keep the wire feeder in
a vertical position. Do not operate the wire feeder on an angled
surface of more than 15 degrees.
Do not submerge the POWER FEED™ 25M NNS.
The POWER FEED™ 25M NNS is rated IP23 and is suitable for
outdoor use.
The handle of the POWER FEED™ 25M NNS is intended for
moving the wire feeder about the work place only.
When suspending a wire feeder, insulate the hanging device
from the wire feeder enclosure.

HIGH FREQUENCY PROTECTION

Locate the POWER FEED™ 25M NNS away from radio controlled
machinery. The normal operation of the POWER FEED™ 25M
NNS may adversely affect the operation of RF controlled equip-
ment, which may result in bodily injury or damage to the equip-
ment.
------------------------------------------------------------------------
WARNING
CAUTION

CABLE CONNECTION

There is one connector on the front of the POWER FEED™ 25M
NNS for the gun trigger. (See 2-prong Figure A.2)
ARCLINK CONTROL CABLES
There is one circular connector on the rear of the POWER FEED™
25M NNS. Maximum control cable length is 200 ft (61 m). (See
Figure A.3)
FIGURE A.3
Function
C C B B
5-pin ArcLink
connector.
D D
A A
E E
(See Figure A.4)
ArcLink/LincNet control cables are special high quality cables for
digital communication. The cables are copper 5 conductor cable
in a SO-type rubber jacket. There is one 20 gauge twisted pair for
network communications. This pair has an impedance of approxi-
mately 120 ohms and a propagation delay per foot of less than 2.1
nanoseconds. There are two 12 gauge conductors that are used
to supply 40VDC to the network. The fifth wire is 18 gauge and is
used as an electrode sense lead.
The control cables connect the power source to the wire feeder,
and the wire feeder to other wire feeders.
Control cables may be connected end to end to extend their
length. Use a maximum of 200 ft. (61.0m) of control cable
between components.
POWER SOURCE
E E
D D A A
C C
B B
Power Source
Pin Function
A ArcLink
B ArcLink
C "67" voltage sense
D 40 VDC
E Common
A 3
INSTALLATION
Figure A.2
PIN Wiring
A
ArcLink
B
ArcLink
C
67 Electrode Voltage Sense
D
40VDC
E
Common
Figure A.4
WIRE FEEDER
E E
A A
B B
Wire Feeder
Pin Function
A ArcLink
B ArcLink
C "67" voltage sense
D 40 VDC
E Common
D D
C C