Lincoln Electric IDEALARC IM420-D - Manual (Page 15)

B-3 INSTALLATION
IDEALARC® DC-1000
B-3
3. NA-5 - Set the DC-1000 mode switch to the
process being used - CV(I) Innershield or CV(S)
Sub Arc. Set the DC-1000 machine/remote switch
in the remote position. Set the OCV control four
volts higher than the welding voltage and the inch
speed at 1/2 the welding wire feed speed for the
initial test weld. Adjust the OCV and inch speed as
required for optimum starting. Refer to the NA-5
instruction manual for data regarding the setup of
controls and modes on the NA-5.
4. LN-8 - Set the LN-8 mode switch (located on the
CC board) to the CV position. Set the DC-1000
mode switch on CV(I) Innershield or CV(S) Sub
Arc according to the process being used.
5. LN-7, LN-9 and other constant wire feed units -
Set the DC-1000 mode switch on CV(I) Innershield
or CV(S) Sub Arc according to the process being
used. If using an LN-9, refer to the LN-9 instruction
manual for further instructions on its use. If using
an LN-7, it will be necessary to use either a K775
Remote Control or operate the DC-1000 with the
machine/remote switch in the machine position.
NL Option Kit (Not Required with NA-3, NA-5, LT-7
or LT-56).
The K783 NL Option Kit (for field installation) is
designed to permit use of the obsolete NA-2, LAF-3,
LT-3 and LT-3 section of the LT-34 tractor. It provides
the necessary DC control power for the operation of
the equipment and the necessary circuitry for proper
inching, cold starting and arc striking.
In using the NL
Option Kit, a K775 remote field control is required and
is included as part of the kit. Installation instructions
are included with the NL Option Kit.