Lincoln Electric MIG PULSER IM555 - Manual (Page 10)

A-3 INSTALLATION
MIG PULSER
A-3
If the optional 25 foot Control Cable Extension is used,
it should be plugged into the 6-pin receptacle of the
wye adapter and then into the MIG Pulser. Only one
Control Cable Extension should be used; do not series
multiple extensions together. Using 50 foot or longer
control cables will cause the signals traveling between
the V300 and the MIG Pulser to degrade, leading to
poor welding performance.
NOTE: The voltage meter on the wire feeder will not
display voltage due to the lack of a 21 lead in the feed-
er connection.
OUTPUT CABLES FOR PULSE
WELDING
Pulse welding generates high peak currents, which in
turn cause large voltage drops in welding cables. It is
essential that large cables (2/0 minimum) are used and
that all connections are clean and tight.
Because of voltage drops, the total length of the weld-
ing leads (work lead length plus electrode lead length)
should not exceed 50 feet. If longer cables are used,
the maximum achievable output voltage will be
reduced.
NOTE: Do not coil the output cables around any
metal object.
USE WITH THE LN-9 GMA
Using the MIG PULSER with a LN9-GMA requires
installation of the voltage board bypass jumper. Other
adapters as called for in the V300 manual are not
needed for this usage, but can be left in if already pre-
sent.
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Figure A.2 Control Cable Connection.
Figure A.3 Spool Gun Connection Diagram.
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JAN97
Problems with the trigger interlock may be experienced
when using the MIG PULSER with an LN-9 GMA
which has a L7265-2 Power PC Board. If needed,
replace with the latest Power PC Board available.
CONNECTING A SPOOL GUN
Refer to Figure A.3 for information about connecting a
spool gun in conjunction with the MIG PULSER.