Setting Internal Dip Switches - Miller D-74S Manuel Du Propriétaire

5-7. Setting Internal DIP Switches

Tools Needed:
1/4 in.
Right Side Motor
Control Board PC1
This illustration shows the
factory setting of S1 and S2.
.
When DIP switch positions are
changed, the unit must be turned
Off and then On again in order for
the new settings to be active. DIP
switches are only read on power up.
Position Settings And Results For DIP Switch S1 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.
OM-1500-6 Page 20
.
A complete Parts List is available at www.MillerWelds.com
Left Side Motor
Control Board
PC101
P1
Automatic Run-In (OFF)
S1-1 And S1-2
Off = Run-In speed is set using
potentiometer P1 located on Motor
Board PC1.
2
PC101
1
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 On PC1
Place S2 in position shown.
Install wrapper when finished.
3
PC1
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