BOC Smootharc TIG 185 DC Servis Kılavuzu - Sayfa 5
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Ver.1 Rev.1 . 0314
1.2
First rectifier board schematic
Ser. No. Pin
Description
CON1
1
Under gas delay, the output is 24V when TIG
works
2
Control works the signal, output the high
frequency when TIG
3
GND
4
DC24V
CON2
1
Pin 1 and Pin 2 is short frequency when TIG
2
works circuit, output high
CON3
1
2T°XHigh frequency 12V°A4T---Low frequency 0V
2
DC12V
CON4
1
Connect to ground by PTC-12
2
NC
3
High frequency
CON5
1
Pin 1 and Pin 3 connect to the TIG torch, Pin 2
2
and Pin 3 connect to the MMA torch
3
4
NC
CON6
1
GND
2
The rated voltage is adjustable
3
Provide power supply to the potentiometer
CON7
1
GND
2
Current feedback
3
Voltage feedback
CON8
1
Connect to the attenuation potentiometer
2
3
When connect to Pin4, It is low voltage
4
GND
5
When connect to Pin4, it is middle voltage
CON9
1
Connect to the thermal switch, connect to the
ground when over-heat works
2
GND
BOC Smootharc TIG 185 DC Service manual
Ser. No. Pin
Description
CON10
1
DC24V
2
This port connect to the over-heat indicator
CON11
1
GND
2
Connect to the power indicator, this pin is high
voltage
CON12
1
GND
2
GND
3
DC5V
4
The signal terminal of the digital meter
CON13
NC
CON14
1
GND
2
GND
3
GND
4
NC
5
DC340V
6
DC340V
7
DC340V
CON15
1
Pin 1 and Pin 3 output AC wave(+340V and
-340V)
2
NC
3
Pin 1 and Pin 3 output AC wave(+340V and
-340V)
CON16
1
Inverter AC output
2
Inverter AC output
3
Inverter AC output
4
NC
5
Inverter AC output
6
Inverter AC output
7
Inverter AC output
CON17
1
Low voltage
2
The signal terminal of the digital meter
3
The power terminal of the digital meter
5