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ELECTRICAL DIAGRAMS
G-3
PRO-CUT 80
SCHEMATIC - CONTROL PC BOARD
LT1014
LT1014
TCF6000
ELECTRODE
SHUNT
GAIN = 80.0
1V = 12.50 A
TCF6000
1V = 68.07mA
LM224
X16
5
10.0K
R94
COM
SHUNT
1.00K
R88
1.0A
30V
D21
BOARD
OUTPUT
J3
5
C53
V
V
INPUT
CC
EE
NC
OUT
INPUT
NULL
4
NULL
7
OP27
X6
3
8
2
6
5
1
C47
7.68K
R73
S18395-13 ASSY
1.30K
R177
LED2
475
R176
D9
3.92K
R7
1.30K
R175
LED3
50V
0.1
C72
LED1
8.25K
R6
619
R5
2.00K
R8
100
50V
C5
1.00K
R9
511
R10
GND
IN
OUT
X8
50V
0.1
C71
27
35V
C9
D6
30.1
R4
7805
POWER SUPPLY
CALIBRATION
NOTE:
SOME OR ALL OF THESE
RESISTORS MAY NOT BE PRESENT
COM COM
-15V
+5.5V
+15V
-15V
+5.5V
D8
D14
X1
1
2
3
+15V
COM
-15V
COM
+5.5V
DIODES =
CAPACITORS =
+5.5V
COM
SENSE_AUX
COM
COM
50V
150p
C44
LT1014
NUMBER.
28.0K
R48
82.5K
R97
+15V
+15V
COM
3.74K
R100
10.0
R196
PILOT_SWITCH
+15V
825
R91
Q2
2N4401
D20
AIR_SOLENOID
COM
D22
39.2K
R188
1.0
50V
C29
3.74K
R58
15.0K
R184
47.5K
R67
100K
R183
ELECTRODE_SOLENOID
SENSE_AUX
COM
PRIMARY_POWER
PILOT_SWITCH
ELECTRODE_SOLENOID
AIR_LOW
SAFETY
PRIMARY_POWER
READY
THERMAL
+15V
COM
COM
825
R29
3.32K
R117
3.32K
R115
10.0
R111
10.0
R110
3.32K
R116
Q3
2N4401
D24
10.0
R197
1W
5.1V
DZ3
6.81K
R109
47.5K
R101
1
26
MODB
/XIRQ
Vss
EXTAL
Vdd
PD1
PD5 (CS_D/A)
PE7
PE6
PC3
PD4 (SCK)
PB2
PE3
PC6
PE0
PE1
PA2
PB6
PB5
PC4
PC0
AS
PC7
PC5
PE2
PE5
PD2 (MISO)
PA3
MODA
68HC711E9
PD3 (MOSI)
XTAL
PC2
PB1
PD0
PE4
PA1
PB4
PB3
PA0
PA6
PB7
PB0
PA7
R/W
VRL
E
/RESET
PC1
/IRQ
VRH
PA4
PA5
X5
8
32
45
15
49
36
7
10
14
24
23
37
4
12
16
40
47
13
43
9
31
5025
48
46
11
20
41
22
21
33
3
38
44
39
34
27
35
42
28
18
51
6
30
2
19
29
17
5
52
3353
3
2
1
Y-
LAST NO. USED
5
TP-
17
3
FRAME CONNECTION
EARTH GROUND CONNECTION
COMMON CONNECTION
DZ-
LED-
POWER SUPPLY SOURCE POINT
VOLTAGE NET
25
C-
D-
R- X-
(UNLESS OTHERWISE SPECIFIED)
ELECTRICAL SYMBOLS PER E1537
.022/50V
REF. DESIGNATORS SKIPPED:
LABELS
RESISTORS = Ohms (
SUPPLY
Q-
197
UNLESS OTHERWISE SPECIFIED)
72
R51,R59,R66,R71,R74,R75,R86,R90,R92,R95,R105,R119,
FILENAME: G3353_1CA
(
1A, 400V
MFD
UNLESS OTHERWISE SPECIFIED)
GENERAL INFORMATION
1/4W
TO: CT &
TO: OUTPUT
BOARD
TSTATS
J3
5
1
4
8
3
1
4
6
1
4
3
2
BOARD
16
9
1
8
J5
TO: POWER
J4
1
6
10
5
SUPPLY
POWER
J1
BOARD
J2
TO: DISPLAY
G
R143-R146,R150,R151,R161-R163,R168,R169,R185,R186
X2
7
6
5
X16
2
J3
16
J3
1
J3
13
J5
4
J3
14
LT1014
X1
4
11
J3
15
J2
1
J1
3
J5
8
J4
2
J4
5
C69
C2
OP27
X4
7
4
C68
OP27
X6
7
4
C8
WITHOUT AFFECTING THE INTERCHANGEABILITY OF A COMPLETE BOARD, THIS DIAGRAM MAY
N.A. SINCE COMPONENTS OR CIRCUITRY ON A PRINTED CIRCUIT BOARD MAY CHANGE
NOT SHOW THE EXACT COMPONENTS OR CIRCUITRY OF CONTROLS HAVING A COMMON CODE
C34
C24
TCF6000
X16
8
1
Vss
Vdd
68HC711E9
X5
1
26
4.7
35V
C19
X12
UC2856N
12
13
C64
C41
C51
X15
MS-001BA
7
5
X17
LM2907
9
12
4.7
35V
C25
C10
33074A
X2
4
11
C63
C66
C20
TCF6000
X10
8
1
C65
LM224
X3
4
11
C49
+5.5V
COM
+5.5V
COM
COM
+5.5V
COM
COM
+5.5V
2.21K
R65
100V
330p
C27
4.75K
R130
50V
0.1
C58
C14
4.75K
R44
4.75K
R136
100V
330p
C48
5.62K
R114
AIR_SOLENOID
/OUTPUT
12.1K
R131
1.00K
R113
Q5
2N4403
3
1
2
100V
10p
C52
S-8054HN
Vdd
Vss
RES
X11
1.50K
R195
4.75K
R137
1.00M
R31
100V
10p
C46
4.75K
R43
COM
V_PWM
33074A
Shutdown Condition:
90 Amps = 0.25V
126 Amps = 0.35V
NOTE:
10K
CW
R132
2.67K
R187
50V
.018
C60
50V
.018
C12
X2
14
13
12
100V
100p
C59
3.32K
R112
COM
8.000MHz
Y1
10K
CW
R18
10.0K
R26
50V
0.1
C15
243
R32
243
R30
V
V
INPUT
CC
EE
NC
OUT
INPUT
NULL
4
NULL
7
OP27
X4
3
8
2
6
5
1
C37
243
R36
X1
14
13
12
1K
CW
R192
X3
7
6
5
J3
12
J3
7
1.00K
R103
243
R38
J3
4
.47
50V
C18
221
R35
10.0K
R93
X1
7
6
5
2.67K
R46
C31
X16
4
221
R24
50V
150p
C22
C17
10.0K
R81
1.21K
R78
221K
R79
3.92K
R193
3.92K
R194
3.32K
R28
1.30K
R82
33.2K
R21
5.11K
R85
D23
LT1014
221K
R83
100K
R80
.47
50V
C4
COM
+15V
COM
COM
COM
COM
COMCOM
COM
COM
COM
10.0K
R27
10.0K
R84
243
R37
243
R33
C35
50V
0.1
C16
+15V
COM
COM
COM
COM
COM
J3
8
C36
6.19K
R40
1.50K
R72
47.5K
R87
J3
10
10.0K
R134
Vin + Vc
OUT
GND
N.I. IN
INV IN
X14
s15018-19k1
5
4
3
1
2
1W
12V
DZ1
50V
0.1
C33
1.8
20V
C61
J5
7
1.0
35V
C62
4.75K
R170
Q1
2N4401
3.32K
R133
15.0K
R135
3.74K
R99
267
R140
4.75K
R172
J3
9
COM
COM
COM
-15V
+15V
COM
+15V
COM
COM
COM
825
R102
D19
13
12
GND
Vc
UC2856N
CL SS
CT
CS+
VIN
SYNC
SHUTDOWN
COMP
EA-
EA+
VREF
AOUT
RT
CS-
BOUT
X12
9
7
5
8
6
15
4
11
10
2
1
3
14
16
D12
40V
3A
267
R141
1W
12V
DZ2
D13
40V
3A
PILOT
SHUNT
ELECTRODE
DIODES
L1
WINDINGS
PILOT
ELECTRODE
TRANSFER
SHUNT
WORK
DIODES
CUT
MACHINE OVERVIEW
CUT
WINDINGS
NOZZLE
IGBT DRIVE
ELECTRODE SOLENOID
OPTOCOUPLER
OPTOCOUPLER
AIR SOLENOID
OPTOCOUPLER
PIP
THERMAL
AIR_LOW
READY
COILS
RELAY
DISABLE
PRE-CHARGE
PULSE XFMR
GATE DRIVE
-15V
J3
3
4.75K
R171
-15V
I
P
S
D
A
Y
L
Q4
4A
100V
D
G
S
J5
1
J2
2
J2
4
J2
10
J2
7
J5
5
1400V
.0047
C6
3.32K
R118
B
D
R
A
O
COM
COM
COM
1000
35V
C3
33.2K
R16
3300
50V
C1
10.0K
R178
5.11K
R19
100K
R25
TRIGGER
D5
33074A
TCF6000
LM224
X1
8
9
10
15.0K
R60
X3
8
9
10
C11
OUT
IN
GND
X9
S18647 ASSY
LM350
7915
33074A
CT
18VAC
18VAC
AUX
XFMR
POWER SUPPLY
TCF6000
33074A
/PIP
ELECTRODE_AMPS
SHORT = TEMP OK = H
OPEN = OVERTEMP = L
ELECTRODE_AMPS
/PSI_OK
/RETRACT_ARC
SENSE_AMPS
PRIMARY VOLTAGE
/PIP
/SAFETY_RESET
CONTROL_POT
/PURGE
THERMOSTAT OK
NOTES :
15J
50V
TP1
D2
2.67K
R2
ADJ
OUT
IN
X7
COM
X2
1
2
3
COM
LM224
15.0K
R41
1.00K
R64
100K
R89
50V
2700p
C45
J1
2
D3
D7
243
R3
J1
1
D4
15J
50V
TP2
J1
4
D1
5W
1.0
R1
50V
50
C7
10.0K
R17
10.0K
R68
COM
COM
+5.5V
COM
COM
+15V
V_PWM
2.43K
R98
1.00K
R15
SENSE_AMPS
TCF6000
10.0K
R69
10.0K
R181
10.0K
R63
10.0K
R61
10.0K
R106
10.0K
R62
10.0K
R108
10.0K
R179
10.0K
R180
X16
3
X2
8
9
10
1.00K
R50
5.11K
R149
10.0K
R23
7.68K
R107
10.0K
R104
C38
7
5
VDD
GND
VREF
SDI
/LD
VOUT
CLK
MS-001BA
/CLR
X15
4
8
6
3
2
1
X16
6
+15V
26.7
R123
J2
9
1.0
35V
C54
10.0K
R138
1.0
35V
C57
C55
10.0K
R139
C23
J2
8
100K
R49
X10
3
4.75K
R45
100K
R47
1.0
35V
C21
J4
6
26.7
R120
2.21K
R129
J4
3
26.7
R121
10.0
R127
10.0
R22
10.0
R142
10.0
R126
1N4936
D18
1N4936
D16
26.7
R122
10.0
R20
10.0
R125
10.0
R128
10.0
R124
1N4936
D15
100V
.15
C56
CONTROL_POT
4.7
35V
C50
J2
6
+15V
+15V
MAX
MIN
POT
10K
CONTROL
CUTTING
Vct = 0.01 Ip
I
P
S
D
A
Y
L
PRIMARY
CURRENT
XFORMER
125:1
TCF6000
CUTTING CURRENT
SETPOINT
...
LOCAL
1N4936
D17
50V
0.1
C32
50V
0.1
C42
D10
40V
3A
D11
40V
3A
J5
3
Vin + Vc
OUT
GND
N.I. IN
INV IN
X13
s15018-19k1
3
4
1
5
2
10.0K
R158
COM
+5.5V
COM
68.1K
R174
1.0
35V
C67
1.21K
R159
+15V
COM
COM
COM
10.0K
R160
47.5K
R70
243
R39
50V
.0047
C70
X16
7
511
R96
9
12
Ic
TACH INPUT
V+
/
LM2907
NC
GND
NC
TACH INPUT
NC
ISOURCE
ISINK
NC
IBIAS
IBIAS
X17
5
10
13
8
1
11
7
4
2
6
14
3
+5.5V
COM
TCF6000
J5
6
J5
2
C40
50K
CW
R173
1K
CW
R189
3.92K
R191
3.92K
R190
511
R42
50V
150p
C43
243
R34
1.30K
R77
THERMOSTAT(S)
SHORT = TRIGGER ON
OPEN = TRIGGER OFF
TRIGGER CIRCUIT
OPTOCOUPLER
RESET
PUSHBUTTON
PUSHBUTTON
PURGE
B
D
R
A
O
TRANSFER
TCF6000
TCF6000
/SAFETY_RESET
/PURGE
+15V
COM
COM
+5.5V
+5.5V
COM
+5.5V
COM
X10
7
C13
332
R12
COM
332
R13
J4
1
J4
4
1.0
35V
C28
5.11K
R57
1.0
35V
C26
10.0K
R182
OPTOCOUPLER
PRIMARY CAP
TCF6000
/PSI_OK
J3
6
J2
5
J2
3
X10
5
100
R54
PSI
PRESSURE SWITCH
100
R56
J3
11
1.0
35V
C30
3.74K
R76
J3
2
100
R52
X10
2
5.11K
R157
5.11K
R53
C39
10.0K
R156
COM
+15V
COM
20.0K
R152
D25
221K
R155
100K
R153
10.0K
R154
X10
4
X3
1
2
3
LM224
TRIGGER ON = H
TRIGGER OFF = L
TCF6000
X10
6
X3
14
13
12
332
R11
332
R14
221K
R167
10.0K
R164
10.0K
R166
10.0K
R165
5.11K
R55
3-19-99
G-3
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NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual.