Lincoln Electric IDEALARC DC-600 Service Manual page 112

G-2
WiriNG DiaGram - (CODEs 9773, 9775, 9776, 9778, 9779, 9780, 9781, 9782, 9910,10282, 10283, 10410, 10411, 10412, 10413, 10414, 10416, 10417) (L8750)
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
380/500V. & 460/575V.
SINGLE VOLTAGE OVER 300 V. TO
H3
(SHOWN CONNECTED
SUPPLY
(EXCEPT 380V.) H1
FOR LOW VOLTAGE)
LINES
272
TO GROUND PER
TO GROUND PER
X1
NATIONAL NATIONAL
6 9 3
ELECTRICAL ELECTRICAL
L3
211
CODE 5 8 2 CODE
L2
1
RECONNECT 4 7 RECONNECT
212
L1 PANEL
PANEL
CR 1
271
TO PRIMARY COILS TO PRIMARY COILS
380V. OR TRIPLE VOLTAGE
DUAL & SINGLE VOLTAGE TO H2
SUPPLY
H1
UNDER 300V.
LINES
272 TO GROUND PER
NATIONAL
TO GROUND PER X1
6 9 3
ELECTRICAL
NATIONAL
L3
211 CODE
ELECTRICAL 5 8 2
CODE RECONNECT
L2
1
4 7
PANEL (SHOWN
RECONNECT 212
L1 CONNECTED
PANEL
FOR 380V.)
CR 1
271
TO PRIMARY COILS TO PRIMARY COILS
LEGEND
C7 .05 +.05 MFD
F1 8 AMP SLOW BLOW FUSE
R1 10K POT W N.A. 1 S
1 31
R2 30 , 100W W
T1
AUX.2
13
T1 MAIN POWER TRANSFORMER
F
PRI.
LEADS 4
T2 CONTROL TRANSFORMER
THRU 9 203
1CR INPUT CONTACTOR
4
2CR FAULT PROTECTION RELAY TO INPUT
204
PANEL
3CR CURRENT ACTIVATED REED SWITCH
4CR OUTPUT PILOT RELAY 7
SW1 INPUT POWER
PRI.
SW2 ELECTRODE POLARITY
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.
J6
J3 J4 J7
1 1 2
3 4
2
J2 J5 J1
OUTPUT RECTIFIER
ASSEMBLY
CONNECTOR CAVITY NUMBERING SEQUENCE
(VIEWED FROM COMPONENT SIDE OF BOARD)
ELECTRICAL SYMBOLS PER E1537
TO
H2
SUPPLY
H1
LINES
272
X1
15
3
L3
211
14 X1
2
L2 T2 H1
13
START
1 212
L1 STOP
211
CR 1
271
H2
SW1
212
TO H2
255
SUPPLY
H1
H3
LINES
272
X1
6 3
9 11
L3 X2
211
10 2
5 8
271
L2
1
4 7 12
7 5
212
L1
271
CR 1
CR2
271
B
A
PILOT
R
LIGHT
233
256
PRIMARY
256
THERMOSTAT
272
273
3
2 32A
S SEC. LEAD
31 THERMOSTAT
14 15
F
205
F F F
207
6
5
S FAN
S S
206
AUX. 1 208 MOTOR
32A
8 9
THERE IS NO
31
10, 11 & 12 215
4
216
CONNECTION
B
ON 380 OR
12
11 4 5 6
TRIPLE VOLTAGE
MACHINES.
8 9
7
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.
2 4 6
A A A
OPTIONAL
G6 GATE LEADS TO
MULTI-PROCESS
G4 FIRING CIRCUIT
SWITCH
G2 P.C. BOARD
J4
236 R1
OUTPUT
CONTROL
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 81
T.S.3
T.S.2
255
235
235
1
2
256
255 3
231 4
238 5 J2
233 6
J1
7
8
9
10 10
11
210
1
J3 12
215 215 2
13
210
CONTROL
14
P.C. BOARD
TO OUTPUT G3 1
G6
2
RECTIFIER
G1 3
ASSEMBLY J4
(-)
G4 4
222
G5 5
6
G2
J5
A 1
B
2
3 10
B'
4 11
J7
C 5 12
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-2
215
229
80
SW4
81
232
224
280
80 81
229
1
2
75
3 232
4 80
5
81
6 226
7 224
8 215
9
280
220
222
1 216
203
2
3 206
4 204
5 215
6 215
7 205
8 208
9 207
231
1 X
2 Y
Z
3
4
N.E.
STICK WORK LEAD NOT
USED WHEN JUMPER IS
USED.
iDEaLarC ® DC-600