G-12
ELECTRICAL DIAGRAMS
INVERTEC STT & STT II
X4
14
13
12
P6
J6
4
267
R24
4
.7
5
K
R
2
3
P6
J6
5
D12
5.
11
K
R
2
5
D10
D8
C11
P6
J6
10
LM350
ADJ
OUT
IN
X5
33.2K
R13
J14
4
D11
500
50V
C10
15.0K
R
1
4
P6
J6
9
15J
50V
TP2
D9
C7
X4
1
2
3
Ch'ge.Sht.No.
COM
+24V
COM
COM
C
24Vac
A
ON 3 PLACE DECIMALS IS + .OO2
ON 2 PLACE DECIMALS IS + .O2
ON HOLES SIZES PER E-2056
ON ALL ANGLES IS + .5 OF A DEGREE
MATERIAL TOLERANCE ("t") TO AGREE
UNLESS OTHERWISE SPECIFIED TOLERANCE
8
5
4
1
J7
1
3
J14
2
4
J6
5
6
1
10
LM224
X4
4
11
3
3
.2
K
R
16
1N4936
D14
1W
15V
DZ1
S
G
D
Q5
P7
J7
4
X4
7
6
5
2.21K
R21
UNLESS OTHERWISE SPECIFIED)
LABELS
SUP'S'D'G.
TYPE
VOLTAGE NET
DZ- 6
D-
SUPPLY
C-
R-
UNLESS OTHERWISE SPECIFIED)
SUBJECT
EQUIP.
16
1/4W
.022/50V
FRAME CONNECTION
11/10/92
SHT.
INVERTEC
M
M
(
P7
J7
2
P6
J6
2
NO.
10K
R19
LAST NO. USED
33.2K
R17
14
COMMON CONNECTION
CHK.
(UNLESS OTHERWISE SPECIFIED)
NONE
69
475K
R12
COM
COM
B
IRF513
D13
X4
8
9
10
100K
R
2
2
CNY17-3
OCI1
2
1
6
5
4
1.8
20V
C6
267K
R20
26.7K
R
1
8
C14
39
20V
C5
40V
600mA
Q40
1W
6.2V
DZ6
10K
R11
1
0
0
K
R
1
0
100
R43
1
0
K
R
4
1
100
R42
1
5
0
K
R
9
33.2K
R15
16
01
8
F
E
P6
J6
8
1.0A
30V
D16
1.0A
30V
D15
P7
J7
7
CONTROL
TRIGGER
TO PULSE
TO
PILOT
LIGHT
(-)
TO
CONTROL
BOARD
(COM)
DIAGRAM MAY NOT SHOW THE EXACT COMPONENTS OR CIRCUITRY OF CONTROLS
WITH PUBLISHED STANDARDS
DATE
TRANSFORMER
16018
MJH
DR.
HAVING A COMMON CODE NUMBER.
ELECTRICAL SYMBOLS PER E1537
GENERAL INFORMATION
EARTH GROUND CONNECTION
WITHOUT AFFECTING THE INTERCHANGEABILITY OF A COMPLETE BOARD, THIS
RESISTORS = Ohms (
CAPACITORS =
MFD
NOTES :
1A, 400V
DIODES =
POWER BD SCHEMATIC
POWER SUPPLY SOURCE POINT
UNUSED
SCALE
CLEVELAND, OHIO U.S.A.
THE LINCOLN ELECTRIC CO.
FILENAME: M16018_6JA
M
TO
CONTROL
BOARD
(+15V)
PWM
SIGNAL
TRANSFORMER
FROM AUXILIARY
18Vac
LM350
PWM
SIGNAL
TO
PILOT
LIGHT
(+)
N.A. SINCE COMPONENTS OR CIRCUITRY ON A PRINTED CIRCUIT BOARD MAY CHANGE
RELAY COILS
FROM PROTECTION BD.
P6
J6
7
+15V
J14
2
267
R7
P7
J7
8
+
t
.24
R69
Vin + Vc
OUT
GND
N.I. IN
INV IN
X67
267
R8
P7
J7
1
1W
12V
DZ5
P6
J6
1
1
0
0
K
R
6
15J
50V
TP1
D1
D3
ADJ
OUT
IN
X1
5W
1.0
R1
3300
50V
C1
243
R3
+
t
.25
R44
D4
P7
J7
3
P6
J6
6
P7
J7
6
2
.6
7
K
R
2
P6
J6
3
1.0A
30V
D7
1W
12V
DZ4
150
50V
C3
D2
1
0
0
K
R
5
P7
J7
5
C2
D5
1.
50
K
R
4
50V
0.1
C9
J14
3
J14
1
50V
0.1
C8
1.0A
30V
D6
Vin + Vc
OUT
GND
N.I. IN
INV IN
X68
COM
+24V
COM
+24V
+24V
COM
D
+24V
3-22-91
9-11-92B
6-25-93A
9-24-93D
4-13-95C
3-29-96L
9-27-96F
10-25-96
G-12
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R
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C
Schematic - Power PC Board - All Codes - (M16018)
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.
