Lincoln Electric IDEALARC DC-1000 Service Manual page 104

G-2
WiriNG DiaGram - CODEs 9922, 9924, 9925, 10293m, 11333 (L9008)
NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual. The wiring diagram specific to your code is pasted inside one of the enclosure panels of your machine.
ELECTriCaL DiaGrams
TO GROUND PER
NATIONAL ELECTRICAL
CODE
H1
4
TO
L1
1 7
3 PHASE
H2
5
TO
POWER
L2 2 8
PRIMARY
SUPPLY
6
COILS
3 9
L3
SINGLE OR DUAL VOLTAGE INPUT PANEL
SHOWN CONNECTED FOR LOW VOLTAGE
TO T2
TO GROUND PER
NATIONAL ELECTRICAL
TO
CODE
1
1CR
T1
H1 6
4
12
13
TO
L1 1
7
4
3 PHASE 10
H3
N.A.
POWER 2
L2 8
5
SUPPLY 11 7
6
L3 3 9
TO PRIMARY COILS
10
380 VOLTS OR TRIPLE VOLTAGE
INPUT PANEL
N.B.
SHOWN CONNECTED FOR 380 VOLTS
TO T2
TO GROUND PER
TO
NATIONAL ELECTRICAL
1CR
CODE
H1
TO
L1
7 4 13
3 PHASE
H2
TO
POWER
L2 8 14
5
PRIMARY
SUPPLY
COILS
L3 9 6 15
380/ 500 VOLTS OR 460/ 575 VOLTS
INPUT PANEL
SHOWN CONNECTED FOR LOW VOLTAGE
NOTES:
N.A. 13, 14, AND 15 CONNECTIONS PRESENT ON 380/500 AND
460/575 MACHINES ONLY.
N.B. 10,11, AND 12 CONNECTIONS NOT PRESENT ON 380V OR
TRIPLE VOLATGE MACHINES.
N.C. CONNECTIONS TO H2, H3, OR H4 DEPENDS ON INPUT VOLTAGE.
SEE INPUT SUPPLY CONNECTION INSTRUCTIONS. H4
INSTRUCTIONS. H4 CONNECTION APPEARS ON 380V AND
TRIPLE VOLTAGE MACHINES ONLY.
N.D. 2CR IS SHOWN AS SPST RELAY. IF 2CR IS A 3PDT, LEAD 271
CONNECTS TO TERMINAL 4 INSTEAD OF TERMINAL 5.
255
4 7
271
B
J3
2CR
1
A
B
235
233 3
2
N.E. NOT INCLUDED IN ALL MODELS.
211
211
1CR
START STOP
SW1
255
212
N.D.
271 271
2CR
PILOT
R
LIGHT
31
S
256
2 3
S
S S 32A
S
S
S
257 257A
203 205
207
31
5 6
SECONDARY
14 15
THERMOSTAT
S S
FAN
S
N.E.
MOTOR
204 206 208
8 9 32A
215
214
31
6
4 5
S S S
B
4CR
11
12
A
7 8 9
4
215
SEC 217
SEC
OUTPUT
SNUBBER
P.C. BOARD
G1 GATE LEADS
G3 TO FIRING CIRCUIT
P.C. BOARD
G5
SCR SNUBBERS
SCR SCR
SCR
OUTPUT SHUNT
3 5
1
50 MV
215 210
+ -
SCR SCR SCR
2 4 6
G6 GATE LEADS
G4 TO FIRING CIRCUIT
G2 P.C. BOARD
CONNECTOR CAVITY NUMBERING SEQUENCE
(VIEWED FROM COMPONENT SIDE OF BOARD)
J6 J4 J2, J7
J5 J1
1 2 1 3 1 4 1 6 1 7
4 8 8
4 6 5 6 12 14
R
OUTPUT CONTROL
CENTER TERMINAL
ON FUSE HOLDER
R1
METER KIT
75
(OPTIONAL) 236
237 238
N.C.
32A
X1 216
T2 NEG 31
H1
VM
+ -
222 226
H2 216
226
SW3
222
H3 AM
+
-
POS 21
230 229
SW2
H4
32 76 77
2
210
215
X2
5 7 T.S.2 T.S.3
255
B
A
235
233
266 1 1 221
2 2 222
3 3
230
256 4
229 4
J2
5
215 5 220
6
224 6
7 7 233
73
CHOKE
J1
8 8
238
THERMOSTAT
9
231
10
1
210 11 226
J3
215 2 12 235
13 255
CONTROL 14
256
P.C. BOARD
G3 1 1 214
R2 222 G6 2
2 203
3
222 G1 3 206
J4
4
G4 4 204
G5 5 5 215
-
222 6 6 215
G2
210
J5
7 205
3CR
220
1
A 8 208
2
B 9 207
3
10
231
B' 4 11
J7
5 12
C
6
C'
500 AMP
7 1
Y
OUTPUT 8
A' 2 X
J6
3
Z
216 FIRING
4
CIRCUIT
P.C. BOARD
L1
LEGEND
SW1 INPUT POWER
SW2 ELECTRODE POLARITY
1000 AMP
SW3 OUTPUT CONTROL
OUTPUT
SW4 WELDING MODE
F1 8 AMP SLOW BLOW FUSE
R1 10K OHM POTENTIOMETER
R2 30 OHM, 300 W
R3 10 OHM, 50 W (20W ON EARLIER
MODELS)
T1 MAIN POWER TRANSFORMER
T2 CONTROL TRANSFORMER
L1 LOW CURRENT WELDING CHOKE
1CR INPUT CONTACTOR
2CR FAULT PROTECTION RELAY
3CR CURRENT ACTIVATED REED SWITCH
CONTROL CONTROL LIFT INPUT
4CR OUTPUT PILOT RELAY
BOX BOX BALE BOX
COVER
ELECTRICAL SYMBOLS PER E1537
N.E.
CLEVELAND, OHIO U.S.A.
G-2
CC
SW4
CVI
CVS
215
266
221
224
74
75
C
L9008PRINT
iDEaLarC ® DC-1000