Shenzhen RelFar Intelligent Technology Co., Ltd.
4
GND
Power reference ground
6.8 CN4 reserved serial interface
The reserved serial port CN4 interface falls into 4PIN green terminal,
with no connection reserved. Table 6.8.1 shows the definition of CN4
interface.
Table 6.8.1
Pin
Signal
Definition
Instructions
1
OVCC +24V power output,500mA Power supply
2
TXD
TXD signal
Serial port communication TXD signal
3
RXD
TXD signal
Serial port communication RXD signal
4
GND
Power reference ground
6.9 CN6 external start and safety lock interface
CN6 interface is a 4PIN green terminal. Table 6.9.1 shows the
definition of CN6 interface.
Table 6.9.1
Pin
Signal
Definition
Instructions
Generally connecting to the start button switch on
1
GND Reference ground
the welding head-
External start switch Generally connecting to the start button switch on
2
Start
input
the welding head+
The pin must be connected to the safety clamp and
Safety clamp signal
3
Injector
the safety clamp shall be clamped onto the metal
input
material before welding.
The pin must be connected to the nozzle of the
Safety clock signal
4
Interlock
handheld head. The nozzle touches the metal
input
material at the moment of welding.
30
    "