Electrical diagrams, Invertec, Circuit trigger – Lincoln Electric INVERTEC SVM129-B User Manual
Page 123: Front end, Power supply for "front end, Unused gates, Isolated circuit
G-7
ELECTriCAL DiAGrAMs
iNvErTEC
®
sTT
®
& sTT
®
ii
G-7
schematic - Control PC Board - Codes 10151 - 11092 - (G2781 sheet 2 of 2)
NOTE:
Lincoln Electric assumes no responsibility for liablilities resulting from board level troubleshooting. PC Board repairs will invalidate your factory warranty. individual Printed Circuit Board Components are not available from Lincoln Electric. This information is provided
for reference only. Lincoln Electric discourages board level troubleshooting and repair since it may compromise the quality of the design and may result in danger to the Machine Operator or Technician. Improper PC board repairs could result in damage to the machine.
OCI2
HP2231
4
3
47.5K
R211
X28
2
4
5
J4
3
X28
1
6
7
1N4936
D200
1.00K
R200
J4
8
26
.7
R
2
0
6
4
7
.5
K
R
2
3
1
10
.0
R
2
3
0
CNY17-3
OCI7
4
2
1
6
5
1.30K
R220
+
t
60V
.13
R239
2.21K
R216
J4
2
1W
43V
DZ4
CR1
11
9
13
1.30K
R218
1.30K
R217
( SHEET 1 )
PWM ENABLE
OCI2
HP2231
1
2
TO DIGITAL LOGIC
( SHEET 1 )
DV/DT LEVEL DETECT
( SHEET 1 )
( SHEET 1 )
PINCH KILLER
Varc ADJUST
ARC/SHORT DETECT
TO DIGITAL LOGIC
Y
CURRENT
TRANS.
Y
BOARD
OVERVOLTAGE
ON POWER
TRIGGER
OPTOCOUPLER
FEEDBACK 125:1 RATIO
PRIMARY CURRENT
CIRCUIT
TRIGGER
TSTAT
24 VAC
TSTAT
CHOKE
BOARD
OPTOCOUPLERS
ON PROTECTION
T1 AUX XFMR
OVERHEAT INDICATOR
15
0
F
A
N
R
5
W
FAN
Y
FROM SHEET 1
OVERCURRENT FAULT
1N4936
D205
22.1K
R210
C203
J4
6
J4
10
TO ANALOG LOGIC
TRIGGER
INTERFACE
( SHEET 1 )
J4
11
1.30K
R219
J4
12
1.30K
R221
J4
5
1W
43V
DZ5
1.30K
R224
1.30K
R223
4093B
X6
7
14
1N4007
D108
J5
8
C112
500
CW
R
1
5
8
X4
14
13
12
1N4007
D109
J5
27
35V
C119
243
R157
1.82K
R156
1000
35V
C111
J17
6
50V
0.1
C125
D107
SMP04
X3
Dgnd
Vss
Vdd
8
16
13
50V
0.1
C121
27
35V
C117
J17
12
1400V
.0047
C113
J5
4
D114
C120
OP470
X4
V+
V-
4
11
50V
0.1
C124
ADJ
IN
OUT
s15128-15k1
X1
D112
OUT
IN
GND
X2
s15128-12
D113
47
35V
C115
C116
J17
11
1400V
.0047
C114
1N4007
D110
1N4007
D111
J17
5
+12VFE
+12VFE
FE
+12VFE
FE
X6
4
5
6
50V
0.1
C126
OCI6
HP2231
6
X4
8
9
10
+12VFE
-15VFE
COMPARATOR
FE
FE
50V
0.1
C128
50V
0.1
C127
OCI6
Vcc
GND
HP2231
5
8
50V
0.1
C122
OCI1
Vcc
GND
HP2231
5
8
50V
0.1
C129
LM2901
X5
3
12
50V
0.1
C123
C118
+12V OUT
XFMR
18 VAC
18 VAC
CT
36 VAC
COMMON OUT
-15V OUT
OP AMP
7915
A
Energy
Trigger Circuit
I/O and Vac
Option
J5
1
8
5
4
Front End
Vac and Varc
7
6
12
1
J4
7
6
12
1
J17
Control
ENERGY
CONTROL
OPTION
NEG FE POWER NET
D
OP470
POWER SUPPLY FOR "FRONT END"
H = STAINLESS
L = MILD STEEL
B
UNUSED GATES
C
OP470
NAND
C
POS FE POWER PLANE
OCI5
Vcc
GND
HP2231
5
8
J17
3
+12VFE
FE
ISOLATED CIRCUIT
LM350
NAND
POS FE POWER PLANE
FE GROUND PLANE
SENSE PANEL
ENERGY CONTROL
PHASE B
G
FRONT END
+ STUD
INPUT FROM
- STUD
VOLTAGE
H = START PLASMA BOOST TIMING
L = NOT PLASMA BOOST
OCI6
HP2231
7
OCI1
HP2231
7
J17
1
THE LINCOLN ELECTRIC CO.
ENERGY CONTROL OPTION
WITH PUBLISHED STANDARDS
Ch'ge.Sht.No.
SCALE
DATE
NONE
EARTH GROUND CONNECTION
Q10
OCI7
LABELS
X36
129, 211, 314, 475
D-
165, 242, 345, 564
LAST NO. USED
C-
R-
SUPPLY
POWER SUPPLY SOURCE POINT
COMMON CONNECTION
VOLTAGE NET
FRAME CONNECTION
NOTES :
NOT SHOW THE EXACT COMPONENTS OR CIRCUITRY OF CONTROLS HAVING A COMMON CODE
N.A. SINCE COMPONENTS OR CIRCUITRY ON A PRINTED CIRCUIT BOARD MAY CHANGE
NUMBER.
WITHOUT AFFECTING THE INTERCHANGEABILITY OF A COMPLETE BOARD, THIS DIAGRAM MAY
DZ20
117, 211, 310, 424
( SHEET 1 )
ENERGY CONTROL
PINCH SIGNAL FOR
OPTION ENABLE
ENERGY CONTROL
OPTION P BOOST
TIME ( SHEET 1 )
-15VFE
FE
-15VFE
WIRE TYPE POSITION
CLEVELAND, OHIO U.S.A.
SUBJECT
TYPE
G
STT CONTROL
NO.
SHT.
04/04/94
MLD
CHK.
DR.
SUP'S'D'G.
200 SERIES- TRIGGER CIRCUIT (SHEET 2)
400 SERIES- ANALOG LOGIC CIRCUIT (SHEET 1)
ELECTRICAL SYMBOLS PER E1537
UNLESS OTHERWISE SPECIFIED)
300 SERIES- DIGITAL LOGIC CIRCUIT (SHEET 1)
EQUIP.
DIODES =
+
t
56
R238
CAPACITORS =
1A, 400V
(UNLESS OTHERWISE SPECIFIED)
100 SERIES- ARC SENSE CIRCUIT (SHEET 2)
REFERENCE DESIGNATOR SERIES DEFINITIONS
MATERIAL TOLERANCE ("t") TO AGREE
ON ALL ANGLES IS + .5 OF A DEGREE
UNLESS OTHERWISE SPECIFIED TOLERANCE
ON 2 PLACE DECIMALS IS + .O2
ON HOLES SIZES PER E-2056
ON 3 PLACE DECIMALS IS + .OO2
MFD
RESISTORS = Ohms (
.022/50V
1/4W
GENERAL INFORMATION
SCHEMATIC (Sheet 2 of 2)
(
UNLESS OTHERWISE SPECIFIED)
W4
ENERGY CONTROL OPTION
( SHEET 1 )
UNUSED
TO POWER
ISOLATED CIRCUIT
BOARD
TRIGGER
C
D
ON SHEET 1
X28 "D" COMPARITOR
COMPARATOR
FILE: G2781_1D1
PB_START SIGNAL FOR
ENERGY CONTROL OPTION
( SHEET 1 )
( SHEET 1 )
+15V
J4
4
J4
1
J4
9
LM2901
X28
3
12
J4
7
50V
0.1
C211
100V
100p
C105
1N
91
4
D
11
6
X5
14
8
9
10K
R142
X3
SMP04
1
7
5
50V
820p
C110
8
2
5
R
1
6
5
3.92K
R164
22
.1
K
R
1
3
2
X3
SMP04
14
10
12
S
M
P
_S
T
R
O
B
E
13.7K
R122
+12VFE
+12VFE
FE
C
OLD DV/DT
Varc SAMPLE
SHORT DETECT
Varc SAMPLE
D
H=LOW DV/DT
L=HIGH DV/DT
DV/DT 10X
AMPLIFIER
ARC
DETECTOR
A
2
2901
A
ARC
A
R
C
_T
R
IP
OP470
B
DV/DT
2
2901
dv/dt
B
B
DV/DT SAMPLE PULSE
D
2901
10K
R148
10K
R145
1
0
0
K
R
1
4
3
J17
4
68
.1
K
R
1
2
7
1.00M
R124
X5
2
4
5
X4
7
6
5
100K
R144
X5
13
10
11
8
.2
5
K
R
1
4
6
68
.1
K
R
1
2
3
4
7
.5
K
R
11
4
100V
100p
C103
51
.1
K
R
1
2
6
1
0
K
R
1
4
7
1N914
D117
4.75K
R128
50V
820p
C109
X3
SMP04
15
9
11
1N914
D102
4
.7
5
K
R
1
2
5
267K
R135
13.7K
R116
13.7K
R118
1N4007
D100
2
6
.7
K
R
1
2
9
13.7K
R120
50V
.0047
C104
2
0
.0
K
R
1
6
2
1W
12V
DZ2
2
0
.0
K
R
1
0
8
DT
J17
8
X6
11
12
13
1N4936
D105
1N4936
D106
J17
9
1.50K
R155
OCI5
HP2231
6
100V
330p
C106
X6
10
8
9
OCI3
HP2231
4
3
J17
7
OCI3
HP2231
1
2
68
1
R
15
1
J17
2
1.50K
R161
3
3
2
R
1
4
9
1.50K
R160
X6
3
2
1
4
.7
5
K
R
1
3
6
1N914
D115
1.00K
R134
3.92K
R163
47.5K
R133
3
.9
2
K
R
1
3
0
1.50K
R154
OCI5
HP2231
7
3
.9
2
K
R
13
1
1N914
D103
5
K
C
W
R
1
5
0
1N914
D104
OCI1
HP2231
6
3
.9
2
K
R
1
5
2
Q1
2N4401
3.92K
R153
X5
1
6
7
1W
15V
DZ3
FE
FE
+12VFE
NEG_CLAMP
FE
FE
D
T
_D
E
L
A
Y
E
D
O
U
T
B
2901
A
C
DT_DELAYED
D
DT_RC
OPTION ENABLE
PHASE A
OPTION P BOOST
TIME
ENERGY CONTROL
DIODE ON = OPTION P_BOOST TIME
DIODE OFF = LOCAL P_BOOST TIME
OR NOT OPTION
P_BOOST TIME
B
A
L = NOT PINCH
H = PINCH
A
DIODE ON = OPTION ENABLED
DIODE OFF = OPTION DISABLED
1.89V NORMAL
2.3V PINCH START
FOR INITIAL
ARC DETECTOR
PINCH PULSE
ADJUSTMENT
H=SHORT
L=ARC
B
PWM
FROM
FROM
PWM
DT
DT
A
TRUNCATES DT_DELAYED
B
13
.7
K
R
1
0
2
13
.7
K
R
1
0
0
2
.6
7
K
R
1
3
8
J17
10
J5
3
J5
+12VFE
+12VFE
FE
CONTROL OPTION
TO ENERGY
Varc FILTERED
ARC VOLT FILTER
100V
100p
C102
13
.7
K
R
1
0
6
13
.7
K
R
1
0
4
13
.7
K
R
1
0
7
13
.7
K
R
1
0
5
13
.7
K
R
1
0
3
13
.7
K
R
10
1
B
8.95V
2901
CR 1
( UNUSED
TO POWER BOARD
CONTACT )
L=PWM OFF
H=PWM ON
1
0
0
K
R
2
3
5
C202
15
.0
K
R
2
1
2
100V
330p
C205
4
7
.5
K
R
2
1
5
50V
0.1
C204
10K
R214
D211
50V
20
C207
267
R229
1W
3.3V
DZ6
D210
D209
1
0
K
R
2
4
0
D208
D207
1.50K
R227
1.50K
R226
1.50K
R228
1.50K
R225
CR1
6
8
4
D206
1.30K
R222
ON=TRIGGER ON
OFF=TRIGGER OFF
PWM_EN
PRI_FB
+15V
+15V
+15V
+15V
3.6V
L=PWM ON
H=PWM OFF
1.7V = 150A PRIMARY
C
2901
2901
A
( SHEET 1 )
1
0
K
R
2
1
3
1
0
K
R
2
3
7
X28
14
8
9
10
.0
R
2
0
3
10
.0
R
2
0
1
10
.0
R
2
0
2
10
.0
R
2
0
4
1N4936
D202
1N4936
D201
1.
30
K
R
2
4
2
10
.0
R
2
0
5
C201
26
.7
R
2
0
9
26.7
R207
2
6
7
R
2
4
1
26.7
R208
+15V
1N4936
D203
1N4936
D204
200V
.33
C200
1
0
0
K
R
2
3
2
1
0
K
R
2
3
6
332K
R234
C206
1
0
K
R
2
3
3
A
OP470
VARC_SCALED
13.7K
R115
50V
0.1
C107
10K
CW
R
1
4
0
B
TURN
10
.400V
2
4
3
R
1
3
9
X3
SMP04
2
6
3
J5
1
1.8
20V
C108
1
0
K
R
1
3
7
8
.2
5
K
R
14
1
4.75K
R159
13.7K
R121
X4
1
2
3
47.5K
R110
4
.7
5
K
R
11
3
DV/DT Varc
SAMPLE
DV/DT
D
E
R
IV
A
TI
V
E
_T
R
IP
A
Varc SAMPLE
NEW DV/DT
1V REF
1N914
D101
J5
5
13.7K
R117
13.7K
R119
J5
6
FE
FE
NEG_CLAMP
FE
+12VFE
FE
+12VFE
+12VFE
FE
FE
+12VFE
+12VFE
+12VFE
FE
FE
3000V
.0047
C100
47.5K
R112
1W
12V
DZ1
400V
.001
C101
4
.7
5
K
R1
11
47.5K
R109
2781-B
FV
27
81
-B
5-19-95
2
7
5-24-96E