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G-2
ELECTRICAL DIAGRAMS
IDEALARC DC1000
Wiring Diagram (Codes 9919, 9920)
9008
Ch'ge. Sht. No.
2-19-93G
3-19-93D
11-19-93C
t
UNLESS OTHERWISE SPECIFIED TOLERANCE
ON HOLE SIZES PER E2056
ON 2 PLACE DECIMALS IS .02
WITH PUBLISHED STANDARDS.
ON 3 PLACE DECIMALS IS .002
ON ALL ANGLES IS .5 OF A DEGREE
MATERIAL TOLERANCE (" ") TO AGREE
THE LINCOLN ELECTRIC CO.
THIS SHEET CONTAINS PROPRIETARY INFORMATION
OWNED BY AND IS
NOT TO BE REPRODUCED, DISCLOSED OR USED
THE LINCOLN ELECTRIC CO.
L
WITHOUT THE EXPRESS PERMISSION OF
4
5
6
9
8
7
1
2
3
L2
L1
H1
H2
TO GROUND PER
NATIONAL ELECTRICAL
CODE
SUPPLY
POWER
TO
3 PHASE
TO
PRIMARY
COILS
SINGLE OR DUAL VOLTAGE INPUT PANEL
SHOWN CONNECTED FOR LOW VOLTAGE
9
8
7
1
2
3
L2
L1
H1
H3
TO GROUND PER
NATIONAL ELECTRICAL
CODE
SUPPLY
POWER
TO
3 PHASE
SHOWN CONNECTED FOR 380 VOLTS
380 VOLTS OR TRIPLE VOLTAGE INPUT PANEL
L3
L3
6
4
5
6
12
10
11
TO PRIMARY COILS
TO T2
TO
1CR
4
5
6
15
14
13
7
8
9
L2
L1
H1
H2
TO GROUND PER
NATIONAL ELECTRICAL
CODE
SUPPLY
POWER
TO
3 PHASE
TO
PRIMARY
COILS
SHOWN CONNECTED FOR LOW VOLTAGE
L3
380/ 500 VOLTS OR 460/ 575 VOLTS
INPUT PANEL
TO T2
TO
1CR
1
S
4
13
7
S
10
T1
S
203
S
204
2
S
S
S
S
S
S
S
S
5
14
8
11
205
206
3
6
15
9
12
207
208
S
32A
31
N.A.
N.B.
1CR
FAN
MOTOR
31
32A
STOP
START
212
211
211
SW1
R3
5
7
A
B
2CR
PILOT
LIGHT
271
R
271
256
257
257A
SECONDARY
THERMOSTAT
CHOKE
THERMOSTAT
X2
255
X1
T2
H4
H3
H2
H1
N.C.
256
255
235
233
+
+
-
-
VM
AM
216
215
210
222
216
222
SW2
21
4
2
31
32
2
32A
F1
32
31
NEG
21
T.S.2
METER KIT
(OPTIONAL)
CENTER TERMINAL
ON FUSE HOLDER
73
74
75
76
77
T.S.3
B
A
31
4
7
8
5
6
9
4CR
215
214
4
215
217
R2
SEC
SEC
SCR
SCR
SCR
SCR SCR
SCR
3
1
5
2
4
6
G1
G3
G5
GATE LEADS
TO FIRING CIRCUIT
P.C. BOARD
SCR SNUBBERS
G6
G4
G2
GATE LEADS
TO FIRING CIRCUIT
P.C. BOARD
OUTPUT SHUNT
50 MV
215
210
+
-
210
3CR
222
222
222
220
OUTPUT
SNUBBER
+
-
1000 AMP
OUTPUT
L1
500 AMP
OUTPUT
216
226
SW3
76
77
OUTPUT CONTROL
R1
75
236
237
229
224
266
221
215
CC
CVI
CVS
SW4
238
230
226
1
2
3
4
5
6
7
8
9
10
11
12
13
14
221
222
230
220
233
74
231
75
226
235
255
256
1
2
3
4
5
6
7
8
1
2
J1
J2
J3
CONTROL
P.C. BOARD
266
229
215
224
73
238
210
215
1
2
3
4
5
6
7
8
9
10
11
12
214
203
206
215
205
207
1
2
3
4
5
6
1
J5
J4
J7
P.C. BOARD
1
2
3
4
204
215
208
231
Y
X
Z
G1
G2
G3
G4
G5
G6
FIRING
CIRCUIT
2
3
4
5
6
7
8
J6
A
A'
B
B'
C
C'
LEGEND
SW1 INPUT POWER
SW4 WELDING MODE
SW2 ELECTRODE POLARITY
SW3 OUTPUT CONTROL
F1 8 AMP SLOW BLOW FUSE
R1 10K OHM POTENTIOMETER
R2 30 OHM, 300 W
R3 10 OHM, 50 W (20W ON EARLIER MODELS)
2CR FAULT PROTECTION RELAY
3CR CURRENT ACTIVATED REED SWITCH
4CR OUTPUT PILOT RELAY
T1 MAIN POWER TRANSFORMER
L1 LOW CURRENT WELDING CHOKE
T2 CONTROL TRANSFORMER
1CR INPUT CONTACTOR
ELECTRICAL SYMBOLS PER E1537
NOTES:
N.A. 13, 14, AND 15 CONNECTIONS PRESENT
ONLY.
ON 380/500 AND 460/575 MACHINES
N.B. 10,11, AND 12 CONNECTIONS NOT
VOLTAGE MACHINES.
PRESENT ON 380V. OR TRIPLE
N.C. CONNECTIONS TO H2, H3, OR H4
DEPENDS ON INPUT VOLTAGE. SEE
INPUT SUPPLY CONNECTION
APPEARS ON 380V AND TRIPLE
INSTRUCTIONS. H4 CONNECTION
VOLTAGE MACHINES ONLY.
J3
J1
CONNECTOR CAVITY NUMBERING SEQUENCE
(VIEWED FROM COMPONENT SIDE OF BOARD)
J6
J4
J2, J7
J5
IDEALARC DC-1000
WIRING DIAGRAM
DAD
NONE
9008
L8234
J.J. 7-30-92
THE LINCOLN ELECTRIC CO.
CLEVELAND, OHIO U.S.A.
EQUIP.
TYPE
SCALE
SUBJECT
DR
DATE
CHK
REF.
SUP'S'D'G
SHT.
NO.
L
POS
TO T1 AUXILIARY WINDING
P.C. BOARD
G-2
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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.