The general connection diagram of AC/DC315P/250P:
CONTROL MODULE
ELECTRIC DIAGRAM
Top Board
DRIVE MODULE
PK-03-A1
DC24V
AC/DC315P
V
H
-
03
VH-02
VH-02
THERMAL SWITCH
Control Board
VH-03
14V
14V
0
0
AC380V
AC220V
(VH-04)*2
DRIVE LINE
X
H
-0
2
X
H
-
03
VH-02
XH-03
DC12V
VH-02
XH-04
XH-03
VH-03
XH-04
CON11
CON6
CON1
CON3
CON5
CON8
CON7
CON10
CON2
CON4
CON9
CON14
CON15
CON12
CON13
METER
CONTROL SIGNAL
REMOTE RESISTANCE
PK-08-A1
PM-04-A3
C
O
N
3
C
O
N
1
Port
Port
CP3
CP2
INPUT AC380V
C
O
N
6
2
C
O
N
4
C
O
N
5
C
O
N
8
/C
O
N
7
DC532V
CON6
CON3
CON2
AC220V
C
O
N
5
PH-20-A1
C
O
N
4
C
O
N
6
A
C
2
20
V
FA
N
*
2
PZ-03-B0
BOTTOM BOARD
CON3
VH-04
C
O
N
1
CENTER BOARD
PD-13-B0
V
H
-0
9
(8
)
CON3
+
-
+
-
O
U
T
1
O
U
T
2
INVERTER BOARD
P
N
-0
5
-A
2
P
N
-0
6
-A
1
C
O
N
1
1
CON1
ARC FORCE
C
O
N
1
2
P
R
O
T
E
C
T
L
E
D
C
U
R
R
E
N
T
CON13
CON14
THERMAL SWITCH
CONTROL BOARD
PK-31-A0
C
O
N
1
V
H
-0
5
V
H
-0
4
5
0
W
4
50
R
*
4
CON1
CON5
PK-09-A3
DRIVE BOARD
C
O
N
1
5
C
O
N
3
A
C
2
0
V
*
4
0
A
C
3
8
0
V
A
C
2
2
0
V
T
T
C
O
N
2
O
R
C
O
N
4
XH-03(2)
PH-10-A2
Gun Switch Board
Gun switch
C
O
N
9
CON10
2T/4T
CON5
AC/DC
CON6
CON7
ARC/TIG
CONTROL GAS
CON8
CONTROL HF
CON2
CON3
CONTROL PULSE
CON4
PH-10-A01
CON15 DC12V
PK-05-A4
PK-31-A0
CONTROL BOARD
CP1
Port
DC+24V
HF BOARD
PZ-35-A0
C
O
N
2
HF
CON1
C
O
N
4
CON2
GAS
+24V
CON3
+24V CONTROL GAS
（
PK-31-A0 CON7
）
The diagram of AC/
DC315P/250P’s top PCB PM-04-A3, center PCB PD-13-B0, bottom PCB
PZ-03-B0, HF PCB PZ-35-A0, control panel PK-31-A0, control PCB PK-05-A4, control module
PK-03-A1, AC drive PCB PK-09-A3 and inverter PCB PN-05-A2 and PN-06-A1:
OR
PK-05-A4
PK-170-A2
