OWNER’S MANUAL
1998 MILLER Electric Mfg. Co.
FORM: OM-817 164 065E
September 1999
Process Selector Control
1. Specifications
Process Selector Control For SMAW, GTAW, GMAW, And FCAW Welding Processes
Rated At 100 Volts, 650 Amperes At 30% Duty Cycle
Electrically Isolates Weld Current At Electrodes
Allows Changing Process Without Changing Cable Connections
ST-800 202-A
2. Safety Symbol Definitions
Means Warning! Watch Out! There are possible hazards
with this procedure! The possible hazards are shown in
the adjoining symbols.
Symbole graphique d’avertissement! Attention! Cette pro-
cédure comporte des risques possibles! Les dangers
éventuels sont représentés par les symboles graphiques
joints.
Have only trained and qualified persons install, operate,
or service this unit. Call your distributor if you do not un-
derstand the directions. For WELDING SAFETY and
EMF information, read wire feeder and welding power
source manuals.
L’installation, l’exploitation et l’entretien de cet appareil
doivent être confiés uniquement à des personnes
qualifiées et convenablement formées. S’adresser à un
distributeur si l’on ne comprend pas les directives. Pour
des renseignements ayant trait à la SÉCURITÉ lors du
soudage et aux champs électromagnétiques, consulter
les manuels traitant les dévidoirs et les sources de
courant pour le soudage.
Beware of electric shock from wiring.
Attention! Risque d’électrocution due au contact avec des
fils.
Hot parts can cause severe burns. Do not touch hot parts
bare handed––allow cooling period.
Des pièces chaudes peuvent provoquer des brÛlures
graves. Ne pas toucher des parties chaudes à mains
nues––prévoir une période de refroidissement.
Wear safety glasses with side shields.
Porter des lunettes de sécurité avec protections
latérales.
Beware of electric shock from welding electrode or wiring.
Touching the electrode while in contact with the work or
ground can cause electric shock. Always wear dry
gloves. Keep all panels and covers closed.
Attention à l’électrocution due au contact avec les fils
électriques et l’électrode de soudage. Toucher l’électrode
en étant en contact avec la masse ou la terre peut causer
une électrocution. Toujours porter des gants secs. Garder
les panneaux et capots fermés.
OM-817 Page 2
3. Location And Mounting
1 Welding Power Source
2 Process Selector Control
Place control as shown.
3 Brackets (Optional)
4 Intellitig Unit
Use brackets as shown when at-
taching control to a D-60 model wire
feeder or Intellitig unit.
Tools Needed:
1
2
2
3
4
ST-800 214-A / ST-800 215-A
OM-817 Page 3
4. Weld Cable Connections
WARNING
ELECTRIC SHOCK can kill.
• Do not touch live electrical parts.
• Turn Off welding power source, and disconnect input power before making any input or output weld cable connections.
swarn12.1* 2/93
See welding power source Owner’s Manual for weld cable and connection location
information. See wire feeder Owner’s Manual for connection location information
as applicable. See High-Frequency unit Owner’s Manual for connection location
information as applicable.
NOTE
Ref. ST-099 082-C / Ref. ST-098 115-B
1 Electrode 1
2 Electrode 2
3 A Terminal
4 B Terminal
5 C Terminal
1
E #2
E #1
C
B
A
( + )
( – )
FROM ELECTRODE 2
FROM ELECTRODE 1
FROM WORK
FROM
POWER
SOURCE
S1
2 345
Tools Needed:
13/16 in
Figure 4-1. One Electrode Positive (+) And One Electrode Negative (–) Connection
OM-817 Page 4
Ref. ST-099 082-C / Ref. ST-098 115-B
1 Electrode 1
2 Bus Bar
3 Electrode 2
4 A Terminal
5 B Terminal
6 C Terminal
Tools Needed:
13/16 in
E #2
E #1
C
B
A
( + )
( – )
CONNECT BUS BAR
FROM ELECTRODE
FROM WORK
FROM
POWER
SOURCE
S1
E #1 TO E #2
13 4562
Figure 4-2. One Electrode Either Polarity Connection
Ref. ST-099 082-C / Ref. ST-098 115-B
1 Electrode 1
2 Electrode 2
3 A Terminal
4 Bus Bar
5 B Terminal
6 C Terminal
Tools Needed:
13/16 in
E #2
E #1
C
B
A
( + )
FROM ELECTRODE 2
FROM ELECTRODE 1
FROM
POWER
SOURCE
S1
CONNECT WORK TO POWER SOURCE ( – )
CONNECT BUS BAR
A TO B
12 3 564
Figure 4-3. Two Electrodes Same Polarity Connection (Electrode Positive Shown)
OM-817 Page 5
Ref. ST-099 082-C / Ref. ST-098 115-B
1 Electrode 1
2 Electrode 2
3 A Terminal
4 B Terminal
5 C Terminal
Tools Needed:
13/16 in
E #2
E #1
C
B
A
MIN. IND.
MAX. IND.
FROM ELECTRODE 2
FROM ELECTRODE 1
FROM
POWER
SOURCE
S1
CONNECT WORK TO POWER SOURCE ( – )
12 345
Figure 4-4. One Electrode CV And One Electrode CC Connection
(For Welding Power Source With CV And CC Terminals)
5. Remote 14 Receptacles Information
Socket* Socket Information
A 24 volts ac.
B Contact closure to A completes 24 volts ac contactor control
circuit.
Remote Contactor
I 115 volts ac.
J Contact closure to I completes 115 volts ac contactor control
circuit.
G Circuit common for 24 and 115 volts ac circuits.
C Command reference; +10 volts dc output to remote control.
Remote
D Remote control circuit common.
AJ
Amperage/Voltage
Control
E 0 to +10 volts dc input command signal from remote control.
AJ
B
K
I
K Chassis common.
C
L
NH
D
M
G
H Voltage feedback; +1 volt dc per 10 output (arc) volts.
D
M
G
E
F
L Not used.
Remote Output Control
M Mode select.
N Remote inductance control.
F Current feedback; +1 volt dc per 100 amperes.
OM-817 Page 6
6. Welding Power Source Remote 14 Receptacle And 115 Volt Receptacle Connections
ST-800 201-B / Ref. 800 101
1 Remote Control Plug
Connect to the welding power
source Remote 14 receptacle.
2 115 Volt Receptacle
Connect the 115 volt plug from high
frequency unit to this receptacle.
3 Circuit Breaker CB1–Protects
unit from overload.
Y Pin K in welding power
source must be grounded.
See welding power source
circuit diagram to be sure.
1
2
3
7. Operation
ST-800 202-A / Ref. ST-162 505-B
1 Process Selector Switch
Make connections according to
Section 4. Place switch in correct
position for application. For GTAW
DC Electrode Negative (DCEN),
use Process 2 position. For GMAW
or SMAW DC Electrode Positive
(DCEP), use Process 1 position.
Y Arcing can damage switch.
Do not change Process Selector
switch position while welding.
Y Using unit with switch
between positions can dam-
age switch.
Place switch lever fully left or right.
1
8. Duty Cycle
3 Minutes Welding 7 Minutes Resting
Duty Cycle is percentage of 10 minutes
that unit can weld at rated load without
overheating.
Y 30% Duty Cycle at 650 Amperes. Ex-
ceeding duty cycle can damage unit
and void warranty.
OM-817 Page 7
9. Routine Maintenance
Y Disconnect power before maintaining.
3 Months
Replace
Unreadable
Labels
Repair Or
Replace
Cracked
Cables
Clean
And
Tighten
Weld
Terminals
6 Months
Blow Out
Or
Vacuum
Inside
During Heavy
Service,
Clean Monthly
OR
When Necessary
Use a high temperature grease such as MILLER Part No. 156 738 to grease the switch mechanism.
10. Troubleshooting
Trouble Remedy
Switch does not work. Check connections and Process Selector switch position for desired application. If switch still does
not work, contact nearest Factory Authorized Service Agent.
OM-817 Page 8
11. Electrical Diagram
SB-191 353
Figure 11-1. Circuit Diagram
OM-817 Page 9
12. Parts List
ST-801 362-B
1
2 3
4
5
6
7
8
10
11
12
13
14
15
16
17
18
19
9
20
Figure 12-1. Complete Assembly
OM-817 Page 10
Description
Part
No.
Dia.
Mkgs.
Item
No.
Figure 12-1. Complete Assembly
Quantity
1 134 327 LABEL, warning general precautionary 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 +159 588 WRAPPER 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 159 587 DOOR, rear 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 099 255 TERMINAL, pwr output neutral 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 010 916 CONNECTION, cable clamp .075 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6 190 156 CABLE, extension 11ft 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7 191 351 PLATE, control 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8 PC1 197 769 CIRCUIT CARD ASSY, Relay 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9 097 132 STAND-OFF, no 6 x 32, .31 hex .20h stl p 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10 117 913 BRACKET, mtg switch 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11 S1 117 914 SWITCH, selector 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12 LS1 603 946 SWITCH, mag blwt lim 10A 125/250VDC SPDT 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
13 RC3 134 837 RECEPTACLE, str grd 2P3W 15A 125V 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14 190 153 CASE SECTION, front/bottom/rear 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15 NAMEPLATE, (order by model and serial number) 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16 019 663 MOUNT, nprn 15/16 OD 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
17 010 650 PIN, spring CS .125 x 1.000 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18 019 603 KNOB, ball 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
19 091 597 HANDLE, switch 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
098 471 BUS BAR, interconnecting (1/8 x 1-1/4 x 3-3/8) 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
098 468 BUS BAR, interconnecting (1/8 x 1” x 2-1/8) 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
098 466 BUS BAR, interconnecting (1/8 x 1” x 2-5/8) 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
098 465 BUS BAR, interconnecting (1/8 x 1” x 3-1/4) 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
098 469 BUS BAR, interconnecting (1/8 x 1” x 3-3/4) 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
098 467 BUS BAR, interconnecting (1/8 x 1” x 4-1/2) 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
059 805 TUBING, cop .540 OD x .123 wall x .312 lg 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
059 804 TUBING, cop .540 OD x .123 wall x .437 lg 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
049 633 TUBING, cop .540 OD x .123 wall x .500 lg 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
049 611 TUBING, cop .540 OD x .123 wall x .687 lg 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
145 898 BRACKET, mtg PR/IC rear 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
145 900 BRACKET, mtg PR/IC front 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
20 CB1 083 431 CIRCUIT BREAKER, 5 AMP, 250 VAC 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
+When ordering a component originally displaying a precautionary label, the label should also be ordered.
BE SURE TO PROVIDE MODEL AND SERIAL NUMBER WHEN ORDERING REPLACEMENT PARTS.
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Miller KK230783 Le manuel du propriétaire
- Taper
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Miller PROCESS SELECTOR CONTROL Le manuel du propriétaire
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