Lincoln Electric INVERTEC V350-PRO Service Manual page 152

G-6
SCHEMATIC - DIGITAL CONTROL PC BOARD #3
D99
2
J10A
MURS320T3
MURS320T3
D100
1N5358B
DZ4
J10A 1
DZ1
1
J10B
DZ2
MURS320T3
2
J10B
D101
+2.5V
/RES
C26 (1)
150pF
R70 R66
121K
AD8403ARU10 C32 2.21K
R207
100K
10pF
X6
PRIMARY CURRENT SHUTDOWN 0.3 - 0.9A
A
R22
-15V
10.0K
J8
1
C7
CURRENT TRANSDUCER R25
SIGNAL IN
2.21K
4V = 500A OUTPUT
0.022uF
CURRENT TRANSDUCER
INPUT = (-VOLTAGE)
A
MSEL0
(4)
MSEL1
(4)
MSELEN
(4)
R73
+STUP
J9
1
1/2W_HV
X15
100K MSEL0 1
J9 A0
2 MSEL1 16
A1
MSELEN 2
EN
4 S1A
R75
67 5 S2A
J9
4
6 S3A
1/2W_HV
7 S4A
100K
13 S1B
R79
-STUP 12 S2B
J9
3
11 S3B
1/2W_HV
10 S4B
100K
J9 ADG409
5
R77
21
J9
6
IDEAL VOLTAGE
1/2W_HV
2/6/202.6,
100K
70V=0.9V
3500 VOLTS
ON CONNECTOR
A
R111
100K
+5VA
Q12
MMBT4401 3
R146
2
RESET_RAMP 1 0.022uF
(1)
C86
4
4.75K
2
3
X32
A A
R213
1.00K
24
22
23
PRIMARY CURRENT SENSE
AD_DATA0 15
AD_DATA1 14
AD_DATA2 13
AD_DATA3 12
AD_DATA4 11
D33
AD_DATA5 10
BAV99
R65 33.2K AD_DATA6
AD_DATA7
AD_DATA8
AD_DATA9
+5VA
AD_DATA10
AD_DATA11
2
DA_CS
+ 7 PRI_OC
(1) (4)
V+
X7
8
3
V-
-
G
LT1016
L
C124 0.1uF C1250.1uF A
-5V
R109
R71 1.00K
R107
+15V
2.67K
4 MC33074AD
10.0K 6
-
7
X8
5
+
+15V
11
A
7 -15V
+15V +5VA X13
1
8
2 D 8
-
6 SEL_I_ON 6
X1
(4) IN2
3 S 1
+ OP-27
C8
5
VL
4
4
V+
7
0.1uF
V-
3
GND
R29
47.5K ADG417D1
-15V D
-15V
Iout = -Vin*0.99mA
R127 6.81K
+15V CURRENT FEEDBACK
INTEGRATOR
+15V
14
V+
3
MC33074AD
V-
15
GND 4
13 R122
-
D 14
X14
R209 4.75K R128
DA 8 12
+
1.50K
3.32K 11
R123
C58
R210
3.32K
DB 9 C126 -15V
330pF
4.75K
0.1uF
C60 -15V C59 A
A
R130
A
0.1uF 0.1uF
6.81K
A A +15V
4
9
- R121 10.0K
8
R129
X14
10
+
MC33074AD
3.32K MC33074AD
C57
11
0.1uF
-15V
TURN_OFF_N 6
(4) +5VA
A
+15V
5
A
4
7
3
-15V D
NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual.
ELECTRICAL DIAGRAMS
+15V
+2.5V
R144
R110 TP1
1
1.00K 4
47.5K 9
-
8 R143
X20
+15V 10
+
MC33074AD
11
1.00K
A
4
13 A
- 0.1uF
R142
14
X20
12
+ MC33074AD -15V
11
100K
(1)
C140 1.00K
(4)
0.1uF R231
+2.5V
-15V A
47.5K R230
A
S1G D75
SAWTOOTH GENERATOR
R106
+5VA
X12
+2.5V 100K
18
C51
D0 VDD
D1
+15V
D2
20 0.1uF
D3 RFB 4
2 R102
D4 1 +2.5V -
IOUT1 R214 1
X20
D5
9 19 VDREF 3
D6 VREF +
8 221
D7 3 11
1.00K
7 DGND R241
D8 2 MC33074AD 10.0K
6 AGND
D9
5 16 -15V
C128
D10 CS'
4 17
D11 WR' 22pF
A D
AD7945BRS
A
A
R63
33.2K
R67
+15V
4.75K
TP3
4
R62 R59 R48
13
- 1
14
X8
12
+
100 221 221
C17
1.00K R68 MC33074AD
AA=5VA
11
820pF
-15V
CURRENT LIMIT BAT54S D34 A
A
CURRENT NODE CONTROL, DISABLE THE
FETS AS SOON AS PRIMARY CURRENT
IS GREATER THAN A REFERENCE LEVEL
R113
R112
1.00K
1.50K
A
0.1uF C30
+15V
+15V
R691.00K
R72
A
4
MC33074AD
26.7K 9
+5VA
- R141
I_AD
X8
10
D67 8
+ 475
S1G
11
5 6
+5VA
IRF7103
1
Q11
4
3
C55 0.1uF
0.27uF
3
-15V
C34 D68 BAT54S D54
S1G A
2
SECONDARY CURRENT SENSE
A
CLR_CAP
2 (1) X30
A
5 6
4
3
X30
R114 26.7K
9 8
R124 R125
R120 26.7K
R118
100K 150K
+15V
TP6
+15V
4 1
2
- 1
1.50K
1
X14
4 MC33074AD
3 6 R126
+
-
D50 R115 7
11 X14
3
5
+
BAV99
1.00K
11
X31 100K
2
R117
D 8
-15V
150K
IN2
R119
S 1 R116
475 475
VL
V+
V-
VOLTAGE FEEDBACK
GND
A
ADG417D1
E1
+5VA
+5V
C54 C80 C49 C50
0.1uF 0.1uF
22uF 22uF
20V 20V
C85
A D
AD_DATA[0:13]
(4)
X19
24 15 AD_DATA0
VDD DB0
A 19 14 AD_DATA1
VREF DB1
SCK
STROBE_AD 8 13 AD_DATA2 (1)
CONVST' DB2 SYS_RESET
AD_CS 21 12 AD_DATA3
(1)
CS' DB3
POT_CS
22 11 AD_DATA4 (3)
RD' DB4
20 10 AD_DATA5
A0 DB5
MOSI
V_AD 25 9 AD_DATA6 (1)
VA1 DB6
26 6 AD_DATA7
VB1 DB7
I_AD 18 5 AD_DATA8
VA2 DB8
17 4 AD_DATA9
VB2 DB9
A/D CONVERSION
27 3 AD_DATA10
AGND1 DB10
16 2 AD_DATA11
AGND2 DB11
7 1 AD_DATA12
DGND DB12
23 28 AD_DATA13
BUSY DB13
A D AD7863ARS-2
+15V
I_AD J7
12
V_AD J7
11
R57 R55
R45
+15V
1 47.5K 100K
TP2
C19
221
R53
47.5K
+5VA
820pF
R54 1.00K
J8
5
D28
BAT54S A A
INPUT FROM 2nd LEM
C28
R56
R49 1.00K
0.1uF
100K
A A
+5VA
R44
2
+ 7 OVR_CUR
(1)
V+
100 X5
8
3
V-
-
G
LT1016
L
C21 C23
-5V
0.1uF 0.1uF
A
+5VA
BAT54S D47 A
AD8403ARU10
A +15V
R60
1.00k
A
+15V
4
MC33074AD
2
R206
-
1
X8
+5VA
3
+
1.00K
11
1
S1G
C56
D64 -15V
7 8
D49
3
0.27uF Q11
BAV99 2
1<GAIN<11
IRF7103
2
1
IDEAL V_AD
2.5V = 70 ArcVOLTS
A
A
THIS SHEET CONTAINS PROPRIETARY INFORMATION OWNED BY THE LINCOLN ELECTRIC COMPANY AND IS NOT TO BE REPRODUCED, DISCLOSED OR USED WITHOUT THE EXPRESS WRITTEN PERMISSION OF THE LINCOLN ELECTRIC COMPANY, CLEVELAND, OHIO U.S.A.
UNLESS OTHERWISE SPECIFIED TOLERANCE
"X" INFO. Chg. Sheet No. DESIGN INFORMATION REFERENCE:
MANUFACTURING TOLERANCE PER E2056
ON 2 PLACE DECIMALS IS ± .02 XM5626 6-2-2000A
ON 3 PLACE DECIMALS IS ± .002 DRAWN BY: F.V.
ON ALL ANGLES IS ± .5 OF A DEGREE XA
MATERIAL TOLERANCE (" ") TO AGREE ENGINEER:
t T. KOOKEN SUPERSEDING:
WITH PUBLISHED STANDARDS.
DO NOT SCALE THIS DRAWING APPROVED:
G-6
+5V
R103
10.0K
R216
+5VA +5VA
10.0K
X6
14 16
C52
CLK VDD
15 21
RS' AGND1
11 1
CS' AGND2
10 17
0.1uF
SHDN' AGND3
12 5
SDI AGND4
13 9
+5VA
SDO DGND
AD8403ARU10
A D
X32
14 16
CLK VDD
15 21
C129
RS' AGND1
11 1
CS' AGND2
0.1uF
10 17
SHDN' AGND3
12 5
SDI AGND4
13 9
SDO DGND
AD8403ARU10
A +5V D
R217
10.0K
I_FLOW_STT
-15V
MMBT4401 3 (4)
11
Q18
+ 10.0K
R58
5 1
X20
7
- R218
6
4
2
1.00K
+15V S1G
D70
D
STT CURRENT FLOW
I>56A = HI
I<56A = LO
X6
V_AD
R138
475
A
EQUIPMENT TYPE: INVERTER WELDERS
DIGITAL CONTROL SCHEMATIC
SUBJECT:
G
3789-1D0/3
SCALE: NONE DATE: 12-15-99 DRAWING No.:
V350-PRO