Lincoln Electric DC-400 specifications }

F-1
DIAGRAMS
F-1
DC-400
L9107
13
14
15
16
17
18
H2
H3
H4
ELECTRICAL SYMBOLS PER
E1537
CONNECTOR CAVITY
NUMBERING SEQUENCE
(COMPONENT SIDE OF P.C.
BOARD)
NOTES
N.A. CIRCUITRY PRESENT ON
CAPACITOR DISCHARGE
ONLY.
TO PROVIDE AT LEAST
600 V INSULATION.
CONTROL BOARD
P6 206
205
225
VM
AM
206
231
+
+
-
-
232
PILOT
LIGHT
SWITCH
POWER
S1
225 225
P2
209
214
217
204
206
206
208
1
2
3
4
5
6
7
8
9
J2
10
11
12 205
205
212
75
213
J1
8
7
6
5
4
3
2
1
201
202
203
204
225
220
4
P1 123
4
J3
P3
AUXILIARY
COILS
PRIMARY
TOP
10
7
4
1
BOTTOM
PRIMARY
16
P5
1
2
3
4
5
6
7
8
J5
SNUBBER
BOARD
204
GREEN
224
225
223
222
221
220
D1 D2 D3
SCR1
SCR2
D4
204
G3
G2
G1 204
204
205 206
216
215
CR3
SHUNT SWITCH
REED
204
RECTIFIER
ASSEMBLY
C1
C2
C3
C4
C5
+
+
+
+
+
31,000 MFD
50V EACH
254 204
0.5 /50W
0.5 /50W
10A
SLOW
BLOW
R7
R8
F2
OPTION
T1 MAIN
TRANSFORMER
CAPACITOR
DISCHARGE
RELAY
CR4
4
231
231
115V
X2
X1
232
31
32A
204
CONTACTOR
CR1
X1
233
H2
TO SUPPLY
LINES
H3
H4
45
6
3
9
8
2
7
1
RECONNECT PANEL
230/460/575V.
TO GROUND PER NATIONAL
ELECTRICAL CODE
12
18
3
6
15
9
S
S
S
X2 SEC
X1 SEC X3 SEC
17
2
5
14
8
201
FAN MOTOR
H1
CONNECT OR
INSULATE AS
SHOWN ON
INPUT
CONNECTION
DIAGRAM
DISCHARGE
CAPACITOR
+-
SCR3
202 203
METERS
TAPE UP SEPARATELY
W
U
}
41
42
42
2
41
41
10 AMP
CIRCUIT
BREAKER
SECONDARY PRIMARY
THERMOSTATS
42V
42A
S
21V
115V
S
21V 21V
41
2
42
Y
9
10
}
N.B.
W
233
233
LIGHT
240
241
V
L1
L2L3
N.B.
N.B.
N.A.
225
43132
TS1
TS2
C6 .0047MFD/1400V
10K /2W
218
204 208 209
R5
228204
219
217
204
GREEN
216
MODE SWITCH
S4A
CC
CC
S4B F
3
2
1
S216
R1
219
15 /100W
ARC CONTROL
6
J6
STARTING
BOARD
224
224
75 211
R4
10K /2W
OUTPUT
CONTROL
S2
OUTPUT CONTROL
SWITCH
76212 211 213 77
SWITCH
MULTI-PROCESS
OPTIONAL +
-
WORK
ELECTRODE
2
TERM.
TO POS.
TERM.
S5
31
32
228
215
218
N.C.
N.O.
N.C.
N.O.
N.A.
2757677
218
214
218
234
204
216
CHOKE
OUTPUT
L1
FRONT GANG
CC
CC
F
3
2
1
S
234
219
SWITCH 1
2
3
4
5
J6
224
224
210
R4
CONTROL
210
+
-
4
TO TERM.
STRIP
TO NEG.
S5
N.A.
MIN. IND. (5)
MAX. IND.
(1)
ARC FORCE CONTROL
32A
S3
SWITCH
32
4
31
41
21
75
76
77
4
2
32
42
10A
CIRCUIT
BREAKER
TERMINALS
2OUTPUT
(SHOWN CONNECTED FOR 230 V.)
}
}
TO PRIMARY
COILS
1
1
2
4
3
12
11
10
9
8
7
6
5
4
3
2
1
6 PIN4 PIN 8 PIN 12 PIN
J6J3 J2
1
5
6
7
8
4
3
2
15
6
4
3
2
12
11
10
9
8
7
6
5
4
3
2
1
6 PIN4 PIN 12 PIN
J6J3 J2
1
6
7
8
4
3
2
15
6
7
84
3
2
15
6
7
84
3
2
10 PIN
J5 J1
10
9
STUD
GROUNDING
DIODE
OPTION
N.C.
LEAD NOT PRESENT WITH
DIODE OPTION
CIRCUITRY PRESENT ON
N.C.
DIODE OPTION.
THERMAL
PROTECTION
T2
CONTROL
TRANSFORMER
12-9-94F
225
S4C
ACTUATED
IN CC ONLY
21
224
VOLTMETER
SWITCH
S6
21
R3
R2
227 204
R3
R2
7.5 /100W
40 /50W
CV-FCAW/GMAW
CV-SUB ARC
CV-FCAW/GMAW
CV-SUB ARC
S4D
ACTUATED
ONLY
CV-FCAW/GMAW
13
NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. The specific diagram for a particular code is pasted inside the machine on one of the enclosure panels. If the diagram is illegible, write to the Service Department for a replacement. Give the equipment code number..
WIRING DIAGRAM FOR CODE 10648