Setting Internal Dip Switches - Miller D-74S Manuel D'utilisation

5-5. Setting Internal DIP Switches

Right Side Motor
Control Board PC1
P1
This illustration shows the
factory settings of S1 and S2.
.
In the DIP switch S1 illustrations,
the elevated slider on each switch
is shown in white. For example,
the switches above are all in the
Off position.
.
When DIP switch positions are changed, the
unit must be turned Off and then On again in or-
der for the new settings to be active. DIP
switches are only read on power up.
Position Settings And Results For DIP Switchs S1 And S2 On PC1 And PC101
Automatic Run-In (ON)
(Factory Default)
S1-1 And S1-2
On = Run-In speed is
approximately 1/2 weld wire
feed speed.
Left Side Motor
Control Board
PC101
1
Set-Up DIP Switch S1
Automatic Run-In (OFF)
S1-1 And S1-2
Off = Run-In speed is set using
potentiometer P1 located on Motor
Board PC1.
2 3
PC101 PC1
Set-Up DIP Switches S2
Current Detect Override (ON)
S1-1 And S1-2
On = Current detect over-
ride. For welding power
sources that don't provide
current feedback through
the 14-pin receptacle. Run-
in is inactive.
Remove wrapper.
1 DIP Switch S1 On Motor
Board PC1
w Setting Current Detect
Override (S1-1)
Current detect override is used to
disable run-in when a welding pow-
er source is used that doesn't pro-
vide current feedback through the
14-pin receptacle.
.
Pins F & H are not present in 14
pin receptacle on machines
that don't provide current feed-
back.
2 Set-Up DIP Switch S2 On
PC101
Place S2 in position shown.
3 Set-Up DIP Switch S2 On
PC1
Place S2 in position shown.
Install wrapper when finished.
Tools Needed:
1/4 in.
Current Detect Override (OFF)
(Factory Default)
S1-1 And S1-2
Off = Current must be detected
from power sources that provide
current feedback through the
14-pin receptacle to go from run-in
to welding condition. Run-in is
active.
Ref. 805 407-A
OM-252717 Page 17