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G-4
ELECTRICAL DIAGRAMS
COMMANDER 300
G-4
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SCHEMATIC - CONTROL PC BOARD
J1
6
1.00K
R99
50V
0.1
C62
25A
GND
GND
+12V
-Vss
POW_+12
POW_gnd
POW_gnd
200
R233
GND
200
R72
200
R73
200
R235
C48
1W
10V
DZ10
J1
3
100K
R167
100K
R171
100K
R168
50V
0.1
C82
4.75K
R169
J3
13
J3
3
D39
J3
12
475
R196
1.0
35V
C15
1
2
33074A
X2
4
11
68
J3
4
475
R187
CNY17-3
OCI1
42
1
6
5
LT1014
X4
4
11
50V
0.1
C26
J3
10
7
8
5
6
23
23A
25
90
CC
2
1
3
4
69
TO DRIVER BOARD
91
4.75K
R170
J3
11
33074A
X11
4
11
50V
0.1
C81
267K
R92
NOT SHOW THE EXACT COMPONENTS OR CIRCUITRY OF CONTROLS HAVING A COMMON CODE
J2=8 PINS
J4=10 PINS
N.A. SINCE COMPONENTS OR CIRCUITRY ON A PRINTED CIRCUIT BOARD MAY CHANGE
DIODES =
CAPACITORS =
WITHOUT AFFECTING THE INTERCHANGEABILITY OF A COMPLETE BOARD, THIS DIAGRAM MAY
J3=16 PINS
1A, 400V
LAST NO. USED
(UNLESS OTHERWISE SPECIFIED)
MFD
(
RESISTORS = Ohms (
.022/50V
1/4W
GENERAL INFORMATION
110
SCR- 1
POWER SUPPLY SOURCE POINT
EARTH GROUND CONNECTION
NUMBER.
50V
0.1
C53
J1
2
26.7K
R126
D61
221K
R125
61.9K
R130
2.43K
R26
GND
GND
+12V
GND
GND
GND
1N4936
D9
221K
R127
31.6K
R186
X5
1
2
3
X8
6
8
9
20.0K
R141
221K
R131
CV
P2
221K
R129
39.2K
R128
D
TP-E
AVE. CURRENT LIMIT
400A
TP-D
VOLTAGE FEEDBACK BUFFER
-D
1.00K
R184
2.43K
R179
1N4936
D41
GND
GND
GND
33.2K
R185
X11
14
13
12
2.43K
R104
68.1K
R183
OCI- 1
105
SUPPLY
D-
R-
C-
3001
G
70
FRAME CONNECTION
COMMON CONNECTION
VOLTAGE NET
Q- 6
DZ- 13
ELECTRICAL SYMBOLS PER E1537
UNLESS OTHERWISE SPECIFIED)
UNLESS OTHERWISE SPECIFIED)
LABELS
260
X- 19
FILENAME: G3001_1B1
NOTES :
X8
12
11
10
6.19K
R23
Q4
2N4401
PINCH/ARC FORCE POT
AVE. CURRENT BUFFER
-A
-C
P1
-B
-D
P3
-C
P4
-A
X10
6
8
9
1W
10V
DZ13
X8
13
1
2
X18
13
1
2
10.0K
R137
277
-A
50K
278
100K
R249
100K
R248
J3
5
J3
14
1.00K
R250
X8
5
4
3
24.3K
R251
C98
D54
50V
0.1
C66
J4
6
50V
0.1
C64
J4
4
50V
0.1
C72
J4
9
J4
8
J4
1
475
R64
475
R63
475
R67
J4
2
475
R142
475
R66
J4
7
D55
50V
0.1
C67
50V
0.1
C68
50V
0.1
C80
475
R65
PIPE 5
475
R139
47.5K
R252
Q6
2N4401
2.7
50V
C102
D56
50V
0.1
C65
100K
R253
J4
10
GND
+12V
GND
GND
GND
PIPE4
222
+15V
213
CV MIG
216
217
219
218
PIPE2
CV INN
214
PIPE 1
PIPE3 PIPE3
PIPE2
PIPE 1
PIPE4
215
CC
220
PIPE 5
50V
0.1
C63
100K
R260
475
R68
J4
5
75
50V
0.1
C51
J3
2
LIMIT 550A
FEEDBACK
OUTPUT VOLTAGE
TP-M
X2
1
2
3
J3
16
-A
J3
7
56.2K
R97
50V
.0047
C99
15.0K
R258
GND
20.0K
R144
1.00K
R181
J3
8
1.00K
R94
67
100K
R95
X5
7
6
5
61.9K
R29
1.8
20V
C4
1N4007
D62
1W
12V
DZ9
1.8
20V
C55
50V
0.1
C30
A
+12V
20.0K
R102
75
7.68K
R103
GND
68.1K
R96
GND
GND
GND
GND
GND
GND
1N4936
D38
47.5K
R180
76
77
TO CONTROL POT
X2
8
9
10
16.5K
R22
CURRENT TAIL OUT
GND
+12V
GND
GND
GND
+12V
GND
100K
R216
1.00K
R213
2.00K
R214
Q5
2N4401
-D
28.0K
R211
Q3
2N4403
1.00K
R212
20.0K
R210
4.75K
R107
50V
0.1
C105
X19
10
8
9
X18
12
11
10
D50
X19
11
12
13
100K
R215
X18
6
8
9
-D
33.2K
R178
50V
0.1
C93
D52
D57
D69
D48
D51
800mA
200V
SCR1
3
3
1
2
D49
GND
GND
GND
GND
GND
GND
-C
TAIL OUT MAGNITUDE
-C
10.0K
R69
1.0
35V
C36
1.00K
R229
D70
1.30K
R37
102K
R38
1.30K
R36
50V
2700p
C32
50V
820p
C44
20.0K
R42
1.00K
R41
221K
R39
D46
X4
7
6
5
10K
R118
10K
R40
TP-G
J2
8
50V
0.27
C2
C37
10.0
R32
1.00K
R230
1.00K
R231
10.0
R34
1.00K
R227
10.0
R35
1.00K
R228
10.0
R33
J2
1
J3
15
C
A
D67
22.1K
R44
B
GND
D
D66
162
R43
J3
6
GND
GND
+12V
GND
GND
101
SHUNT INPUT
50mv=400AMPS
21
22
-D
+
CURRENT
-
77
TP-F
CURRENT AMP
-A
-B
TP-N
SENSE CURRENT
102
X4
14
13
12
20.0K
R219
X4
8
9
10
Vref
GND
J2
7
X4
1
2
3
-C
475
R47
+12V
GND
4.75K
R19
475
R87
20.0K
R174
50V
0.1
C27
52.3K
R173
22.1K
R18
X11
8
9
10
10.0K
R259
10.0K
R175
1N4936
D59
50V
0.1
C103
50V
0.1
C84
X18
5
4
3
1N4936
D60
X1
MC33023
10
15
50V
0.1
C52
50V
.47
C54
50V
820p
C39
33074A
X9
4
11
TP-P
50V
.018
C12
50V
0.1
C70
50V
0.1
C59
22.1K
R14
54HC4066
X8
14
7
GND
+12V
GND
GND
GND
-B
-C
-B
TP-I
X11
7
6
5
1.0
35V
C14
10
15
X1
INV
NON INV
COMP
CLOCK
Rt
Ct
RAMP
SOFT START
Vref
Vcc
OUT
PWR Vcc
PWR Gnd
Ilim ref
GND
Ilim
MC33023
2
8
16
13
14
11
12
9
6
5
4
3
1
7
4093B
X19
7
14
50V
0.1
C104
X11
1
2
3
50V
0.1
C28
4.75K
R88
100K
R172
1W
10V
DZ11
PWM
10.0K
R243
-A
4.75K
R257
33074A
X5
4
11
4.75K
R256
50V
0.1
C29
IMBALANCE DETECTOR
50V
0.1
C96
50V
0.1
C13
GND
GND
Vref
4.75K
R176
+12V
X13
12
11
10
GND
90.9K
R157
12.1K
R155
3.92K
R156
26.7K
R163
1.0
35V
C100
X5
8
9
10
56.2K
R226
X12
6
8
9
4.75K
R158
X12
12
11
10
56.2K
R160
20.0K
R164
10.0K
R162
X13
5
4
3
43.2K
R152
10.0K
R225
28.0K
R161
3.32K
R153
50V
0.1
C76
4.75K
R159
221K
R166
-B
X12
5
4
3
100K
R165
X14
12
11
10
22.1K
R154
X14
6
8
9
X14
13
1
2
X12
13
1
2
X13
6
8
9
X14
5
4
3
X13
13
1
2
GND
C
+12V
CV
-B
TP-C
-B
CC
-C
PIPE
-A
CV
STARTING
ENHANCEMENT
-A
PIPE
-C
CC
P2
-A
P1
P5
-D
P4
-D
-C
P3
90.9K
R151
GND
B
GND
+12V
GND
GND
GND
GND
-B
-A
TP-H
-C
SET PT. BUFFER
ABSOLUTE CURRENT
P5
-B
221K
R140
221K
R220
CURRENT SET POINT CIRCUITRY
TP-A
-B
TP-B
-D
475
R5
10K
R9
100
R11
2.7
50V
C45
475
R6
100
R8
10K
R3
D14
10K
R79
10K
R2
100
R76
50V
0.1
C41
10K
R7
100
R74
+
t
56
R78
50V
0.1
C9
1W
8.2V
DZ8
1.8
20V
C7
681K
R4
100
R16
1W
10V
DZ6
475K
R21
50V
2700p
C33
50V
0.1
C16
X9
7
6
5
18
15V
C95
267K
R132
C31
22.1K
R17
5W
10V
DZ3
50V
0.1
C50
10.0K
R221
2.7
50V
C46
475
R12
X2
14
13
12
X19
4
6
5
267
R198
22.1K
R106
X9
8
9
10
X2
7
6
5
C10
50V
0.1
C8
D13
D12
+
t
56
R75
100
R1
X10
5
4
3
103
105
+
t
56
R77
J2
6
10K
R51
4.75K
R206
J3
1
D1
Q1
2
3
1
D3
50V
0.1
C42
J1
4
150
15V
C1
+
REF
-
TL431
X7
1
6
8
5W
15V
DZ1
4.75K
R208
1W
5.1V
DZ12
1200
100V
C25
D4
J3
9
D2
4.75K
R207
4.75K
R205
J1
1
2.61K
R20
J2
2
J2
5
+
t
56
R200
104
J2
3
GND
GND
+12V
-Vss
+12V
109
12
11
TP-J
+12V SUPPLY
FOR CONTROL CIRCUIT
Vin
POW_gnd
POW_+12
1.00K
R241
106
107
108
D68
D30
TP-L
TP-K
76
VOLTAGE
X19
3
1
2
22.1K
R15
3.01K
R109
100V
1A
Q2
1W
15V
DZ4
221K
R108
X9
1
2
3
X9
14
13
12
-C
1.00K
R224
10.0K
R110
X5
14
13
12
50V
0.1
C77
50V
0.1
C78
54HC4066
X12
14
7
50V
0.1
C79
54HC4066
X14
14
7
54HC4066
X18
14
7
54HC4066
X10
14
7
50V
0.1
C74
50V
0.1
C73
54HC4066
X13
14
7
221K
R143
8.25K
R105
X10
12
11
10
X10
13
1
2
221K
R13
C11
+12V
GND
GND
+12V
GND
GND
GND
-A
MIN CURRENT
-D
ERROR AMP
setpoint
-B
-D
1.50K
R177
8-14-98A
NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual.