Shenzhen RelFar Intelligent Technology Co., Ltd.
Table 6.11.1
Pin
Signal
Definition
Instruction
Power supply, capable of delivering a maximum
1
OVCC +24V power output
output of 500mA
2
Auxi.air shielding gas
Used for gas blowing control protection, it can
directly drive the solenoid valve
3
Output1 green light
4
Output2 yellow light
output 0V in standby mode
0V output in processing state
5
Output3 red light
and 0V output in alarm state
Power supply, capable of delivering a maximum
6
OVCC +24V power output
output of 500mA
6.12 CN9 common input interface 2
The CN9 interface is a 4-pin green terminal of NPN type. The
definition of the CN9 interface is given in Table 6.12.1.
Table 6.12.1
Pin
Signal
Definition
Instruction
1
GND
Reference ground
—
2
Input4 Underpressure alarm input
3
Input5 Reserved
—
4
OVCC +24V power output
Power supply, maximum output is 500mA
6.13 Galvanometer interface
The system provides two DB9 galvanometer interfaces, one DB9 male
connector and one DB9 female connector.
24
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