Thermadyne Thermal Arc 400GMS CC, Operating Manual

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45
MANUAL 0-2510
E
CN6
1 2
Digital Panel Meter
(PCB7)
Front Panel
(PCB6)
CN2 CN2
CN1 CN1
Tripping Relay Control
Input Changeover Switch
Input Changeover Switch
Thyristor Gate Drive
Pre-charge Control
PCB Common - 0V
Undervoltage
Overvoltage
Reset Signal
+12VDC
PCB Common - 0V
Input Voltage Detect
Contactor 24 (Brown)
Contactor 115 (Red)
Output Reference (Orange)
Common (Yellow)
Input Remote (Blue)
Current Detect (Pink)
Current Detect (Gray)
Chassis (Green)
+24V (Brown)
+10V (Red)
–24V (Orange)
1V/100A (Yellow)
1V/10A (Blue)
Common (Pink)
Output Reference (Gray)
Amplitude (White)
Contactor (Black)
Common (Lt. Blue)
Chassis (Green)
12
11
10
9
8
7
6
5
4
3
2
1
CN9
1
2
3
4
5
6
7
8
CN11
1
2
3
4
5
6
7
8
9
10
11
CN12
Thermal Control
Thermal Control
Output Voltage Detect
Output Voltage Detect
Output Current Detect
PCB Common - 0V
–12VDC
+5VDC
+5VDC
PCB Common - 0V
+12VDC
11
10
9
8
7
6
5
4
3
2
1
CN7
Torch Control (Pink)
Torch Control (Yellow)
2
1
CN4
Case Ground (Green)
Output Short Detect (Black)
Output Short Detect (White)
Ground (Yellow)
Output Current Detect - 0V to –4V (Orange)
–12VDC (Red)
+12VDC (Brown)
T1
A C
D
E B
A C
D
E B
T2
1 2 3 4
D2
R2 C2
CT1
FCH
C6
C7
C8
+
Output
Filter
Network
–
R7
D3
R3 C3
Input 1/3 Phase Detect
Input Changeover Control
+12VDC
PWM Gate Drive
PWM Gate Drive
Input Changeover Control
Input Changeover Control
Torch Switch Control
Output Short Circuit Detect
PCB Common - 0V
Primary Current Detect
Primary Current Detect
Primary Current Detect
15
14
13
12
11
10
9
8
5
4
3
2
1
CN8
A K
A K
2
3
1
CN10
B1
J1
C1
D1
E1
M1
N1
G1
H2
A2
L2
E2
M2
F2
K2
B2
D2
P2
S2
A1 J1
E1 F1
K1 I1 B1
M1
14-Pin Receptacle
(Front View)
Receptacles support industry-standard
pinouts; signal names used are for clarity
in interconnection diagram only.
Refer to Appendix C for receptacle signal
connections.
G1 D1
C1 L1 N1 H1
A2
H2
N2
M2 B2
G2
17-Pin Receptacle
(Front View)
J2 E2
C2
P2 T2
L2
D2
R2 S2
K2
F2
APPENDIX B
INTERCONNECTION DIAGRAMS