Lincoln Electric 11519 Service Manual page 111

G-7
SchEmaTic - WELD cONTrOL Pc bD (G4823) (PG3)
SPOOL GUN MOTOR DRIVE AND BRAKE
SPOOL GUN POTENTIOMETER READ
100K OR 5K
ELEcTricaL DiaGramS
+15V
541A
33.2
+15V
D41
1A
400V
1 8 Q19
VCC VB
C77 45A
2 7
0.1uF IN X14 HO R124 100V
50V 3 6 100
COM VS
IR2117
C64
C66
0.1uF 82uF
50V 35V
COM
+15V
R206
15
D46
3A
200V
5.62K
COM
REF
10
X4
13 +15V
PB2
2901N
11
R150
5.62K
Q14
D48
0.5A
40V 1A Q18
400V
45A
SPOOL_DRIVE
R151 100V
475
Q17
DZ5
.5A
18V
40V
1W
COM
+5V
+15V
R144 R178 12
J3
2.21K 2.21K
2 14
X15
R180 R179 13
224N D59
2.21K 2.21K
1A
400V
R135 R136
47.5K 47.5K
D58
1A
+15V
400V
D50
1A
400V
J3 3
3 R142
1
6.81K
X15 R172
C73 2 100K
D49 224N
0.1uF
100K 1A +5V
50V
400V
100K
COM
COM
COM
10K
+15V
COM
1K
10
X5
13
2901N
11
+5V
10 2K
+15V
8
X15
9
D47
224N
1A
400V
6.81K 6.81K D57 COM
1A
400V
J3
4 R138
10K
R187
D56
1M 47.5K
1A
400V
D55
1A
15K
400V
COM
NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual.
J3
5
SPOOL
MOTOR
J3
6
R202
39.2K
C74
7.68K
1uF
35V
10
8
COM X6 R194
9
10K
1014
R201
39.2K
R196
15K
CS
C75 C76
15K 1uF 1uF
35V 35V
COM
COM
PB5
5 13
7 PE7
X15 R169
1 2
6
100K
224N X13
C60
4066B
100K DZ10
0.1uF
6.2V 50V
R174 R173
1W
100K 100K
COM COM
COM
+15V
+15V
2K
2K
6
LOW=CK
PD0
X4
1
HIGH=MK
2901N
7
1K
2K
COM COM
SCR BRIDGE SNUBBER
X9
1 2
PE2
13
4066B
D60
4.75K
0.2A
30V
+15V
COM
15K
Q24
195mA
PB7
60V
COM
OUTPUT STUD RF BYPASS
GENERAL INFORMATION
ELECTRICAL SYMBOLS PER E1537
CAPACITORS = MFD (
RESISTORS = Ohms ( 1/4W
DIODES = 1A,400V (UNLESS OTHERWISE SPECIFIED)
PROPRIETARY & CONFIDENTIAL: THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION OWNED BY LINCOLN GLOBAL, INC. AND MAY NOT BE DUPLICATED, COMMUNICATED
TO OTHER PARTIES, OR USED FOR ANY PURPOSE WITHOUT THE EXPRESS WRITTEN PERMISSION OF LINCOLN GLOBAL, INC.
SINCE COMPONENTS OR CIRCUITRY ON A
DESIGN INFORMATION EQUIPMENT TYPE:
REFERENCE:
PRINTED CIRCUIT BOARD MAY CHANGE
WITHOUT AFFECTING THE INTERCHANGE- DRAWN BY: JZ ---------
ABILITY OF A COMPLETE BOARD, THIS SUBJECT:
DIAGRAM MAY NOT SHOW THE EXACT JZ DO NOT
ENGINEER:
SCALE THIS MATERIAL
COMPONENTS OR CIRCUITRY OF CONTROLS NA
APPROVED:
DRAWING DISPOSITION:
HAVING A COMMON CODE NUMBER.
G-7
208
C67
0.47uF
630V
10
5W
204
10
5W
C68
0.47uF
630V
209
C70
COM
TP9 0.05uF
600V
320V
150J
FRAME
C69
TP8 0.05uF
600V
320V
150J
207
+15V
4
C63
X15
0.022uF
50V
224N
11
COM
LAST NO. USED
R- -
C- _
.022/50V UNLESS OTHERWISE SPECIFIED)
_
UNLESS OTHERWISE SPECIFIED) LABELS D-
SUPPLY VOLTAGE NET
POWER SUPPLY SOURCE POINT
COMMON CONNECTION
FRAME CONNECTION
EARTH GROUND CONNECTION
POWER MIG 255C PAGE 03 OF 03
DOCUMENT DOCUMENT
SCHEMATIC, CONTROL PCB
NUMBER: REVISION:
APPROVAL PROJECT G 4823-2F0 A.01
2/21/2007 -------
DATE: NUMBER:
Power miG® 255XT