Lincoln Electric DC-650 PRO IM463-A - Manual (Page 13)

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Connection of a K775 Remote Output
Control
Feed the remote control cable through the box
connector on the case front, to provide a strain relief
for the cable. Connect the numbered leads in the
control cable to the like numbered terminals on the
right hand terminal strip (75 to 75, 76 to 76, and 77 to
77). Connect the green ground lead to the stud
marked .
Connection to Auxiliary Power
The DC-650 PRO has an extra 15 amps of 115 amp
VAC auxiliary power, above what is required for wire
feed equipment. This auxiliary supply is available on
terminals 33 and 34 on the terminal strip. This supply
is protected by a 15 amp circuit breaker.
Figure 4
EXPLANATION OF CONTROLS
Refer to Figure 3 for placement of the DC-650 PRO
controls.
1. Output Control Potentiometer
Controls the output of the machine. Adjusts
current when welding in the SMAW mode, and
adjusts voltage when welding in the GMAW,
FCAW and SAW modes. The Output Control
switch must be in the Local position for this
control to be active.
2. Output Control Switch
This switch chooses whether the DC-650 PRO
output is adjusted from the front panel or by
remote control. In the Local position, the Output
Control Potentiometer adjusts the output. In the
Remote position, the output is adjusted by either
a wire feeder or an optional remote control. If
using an LN-9 or NA-5 see
“ Operating with LN-9
or NA-5 Wire Feeder ” section.
3. Arc Force Potentiometer
Active only in the SMAW (stick) mode. Adjusts
the slope of the machine to give greater short
circuit currents, necessary when using certain
manual electrodes. When set to
“ 0 ” , there is no
arc force action, giving a soft, buttery arc
characteristic. When adjusted towards
“ 10 ” , the
higher arc force action gives the arc a “ digging ”
characteristic, which can help prevent the
electrode from sticking to the work. The setting of
this control has no effect in any other mode.
4. LN-9 / NA-5 On/Off Switch
This switch is set to
“ On ” only when used with
LN-9 and NA-5 wire feed units. For all other
equipment, this switch is to be set to
“ Off ” . For
proper operating with LN-9 and NA-5 wire feed
units, the Output Control switch must be set to
Remote, and the LN-9/NA-5 switch must be set to
“ On ” .