Lincoln Electric IDEALARC DC-600 Service Manual page 113

G-3
WiriNG DiaGram - (CODEs 9774, 9777, 10419) (L8751)
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
SINGLE VOLTAGE 440&460v
H3
H1
L3
TO
SUPPLY
L2
LINES
L1
X1
TO GROUND PER
211
NATIONAL
212
ELECTRICAL
271
CODE
OR
271A
CR1
LEGEND
272
C7 .05 +.05 MFD
OR
D1 INPUT CONTACTOR BRIDGE (ONLY
272A
PRESENT WITH DC COIL CR1)
F1 8 AMP SLOW BLOW FUSE
R1 10K POT
W
R2 30 , 100W W
N.A. 1
T1 MAIN POWER TRANSFORMER
1 31
T1
AUX.2
T2 CONTROL TRANSFORMER
13
F
TP1 (ONLY PRESENT WITH DC COIL CR1)
LEADS 4 PRI.
1CR INPUT CONTACTOR 203
THRU 9
4
2CR FAULT PROTECTION RELAY
TO INPUT
3CR CURRENT ACTIVATED REED SWITCH 204
PANEL
4CR OUTPUT PILOT RELAY
7
SW1 INPUT POWER
SW2 ELECTRODE POLARITY
PRI.
SW3 OUTPUT CONTROL
10
SW4 WELDING MODE (SHOWN IN STICK POSITION)
NOTES:
N.A. LEADS 4 THRU 9 ARE NOT PRESENT ON
460V., 380/500V. & 460/575V. MACHINES.
SEC.
N.B. FOR STICK WELDING OR AIR CARBON ARC
WITHOUT A MULTI-PROCESS SWITCH INSTALLED,
DISCONNECT ALL ELECTRODE, WORK, AND
CONTROL LEADS TO ANY WIRE FEEDERS.
JUMPER 2 TO 4. OUTPUT TERMINALS WILL
NOW BE ENERGIZED. PLACE MODE SWITCH
SEC.
IN VV FOR STICK AND CV (I) FOR AIR
CARBON ARC. SEE OPERATING MANUAL
FOR FURTHER INSTRUCTIONS.
N.C. CENTER TERMINAL OF FUSE HOLDER.
N.D. WELDING CABLE MUST BE OF THE PROPER
CAPACITY FOR THE CURRENT AND DUTY CYCLE
OF IMMEDIATE AND FUTURE APPLICATIONS.
N.E. THIS DIAGRAM SHOWS THE "STICK" POLARITY
"POSITIVE". TO CHANGE THE POLARITY, TURN
THE DC-600 OFF, AND REVERSE THE LEADS AT
THE MULTI-PROCESS SWITCH.
N.F. USING A WIRE FEEDER, K-317 OR K-318
CONNECTION DIAGRAM, CONNECT ELECTRODE
AND WORK LEADS TO THESE TERMINALS
INSTEAD OF THE POWER SOURCE
OUTPUT TERMINALS.
OUTPUT
THESE NOTES APPLY ONLY TO DC-600 WITH A
SNUBBER
MULTI-PROCESS SWITCH INSTALLED.
J3 J6 J4 J7
1 1 2
3 4
2
J5 J1
J2
OUTPUT RECTIFIER
ASSEMBLY
CONNECTOR CAVITY NUMBERING SEQUENCE
(VIEWED FROM COMPONENT SIDE OF BOARD)
ELECTRICAL SYMBOLS PER E1537
X1
T2 H1
START
STOP
211
H2
SW1
212
255
H3
X2
271
7 5
271
TP1 CR2
B
A
PILOT
R R
LIGHT
D1
233
256
272
PRIMARY
256
THERMOSTAT
273
2 3 32A
S
S SEC. LEAD
THERMOSTAT
15 31
14 F
205
F F F
207
6
5
S FAN
S S
206
AUX. 1
208 MOTOR
32A
8 9
THERE IS NO
31
215
10, 11 & 12
4 216
CONNECTION
B
ON 380 OR
11 12
4 5 6
TRIPLE VOLTAGE
MACHINES.
9
7 8
A
214
CR4
R2 222
215
OUTPUT
CHOKE
GATE
LEADS TO
G1
FIRING
G3
CIRCUIT
G5
P.C.
SCR
BOARD
SNUBBERS
J4
A A A
215
+
CR3
SCR SCR
SCR
3 5
1
210
215
220
215 215
C
C C
C C C
SCR SCR SCR
N.D., N.F.
4
2 6
A A A
OPTIONAL
G6 GATE LEADS TO
MULTI-PROCESS
G4 FIRING CIRCUIT
SWITCH
G2 P.C. BOARD
J4
236 R1
210
237 75
32A
76
SW3
31 N.C.
210 77
VM
+ - 226
SW2
238
21
222
F1
222 2
32
AM
+ -
21 4
2 31 32 75 76 77 80
T.S.3
T.S.2
255
235
235
1
256 2
255 3
231 4
238 5 J2
233 6
J1
7
8
9
10
210 1
J3
215 215
2
210
CONTROL
P.C. BOARD
G3
TO OUTPUT 1
G6 2
RECTIFIER
G1 3
ASSEMBLY J4
(-)
4
222 G4
5
G5
6
G2
J5
1
A
B 2
3
B'
4
J7
C 5
C7
C' 6
N.D. 7
A' 8
J6
210
FIRING CIRCUIT
P.C. BOARD
(+)
210
-
2
4
LEADS 210 & 215 ARE
OUTPUT SHUNT
TWISTED TOGETHER
(50MV @800 AMPS}
210
215
220
215
215
215
+ TO STICK ELECTRODE HOLDER OR
WORK
AIR-CARBON ARC TORCH
N.D.
ELECTRODE
TO "WORK" USED WITH STICK
-
OR AIR-CARBON ARC
OPTIONAL USER SUPPLIED JUMPER FOR
THOSE SITUATIONS WHERE IT IS NOT
NECESSARY TO HAVE SEPARATE GROUND
CABLES FOR STICK AND SEMI-AUTOMATIC
WELDING.
G-3
OUTPUT
CONTROL
215
229
80
SW4
81
232
224
81
280
80 81
229
1
2 75
3 232
4 80
5 81
6 226
7 224
8 215
9
10 280
11
12
13 220
14 222
216
1
2 203
3 206
204
4
5 215
6 215
7 205
8 208
9
207
10 231
11
12
1 X
2
Y
3 Z
4
N.E.
STICK WORK LEAD NOT
USED WHEN JUMPER IS
USED.
iDEaLarC ® DC-600