Beijing Starfire Control Technology Co.,Ltd.
北京斯达峰控制技术有限公司
Model SF-2012AH-QG
Cutting Machine
（
C002
）
28
9.1
Check Input/output Ports
The system diagnosis will show the hardware resources available. In DIAGNOSE window, it is allowed to check
the state of input/output port.
9.2
Output Check
Move cursor to any position of the 8 optical isolation output ports and change the level state of output with
"0"and "1". 1 stands for enable while 0 stands for disable. Refer to "Definitions of Input/output Port" for the
definitions of output ports.
9.3
Input Check
Let the system to show the state of active optical isolation input ports. 0 stands for low potential(grounding)
while 1 stands for high potential(24V or overhead). See "Definitions of Input/output Ports" for the symbol
definitions of input ports.
Chapter X. Connections of Input/output Ports
The system ports include input ports(DB25 pin), output ports(DB25 pin), motor(15 pin) and RS232 serial port(15 pin)
to connect the height controller manufactured by Microstep.
10.1. System Input Principle
Generally, mechanical switch is used for travel limit/start/pause. To shield the system from interference,
normally-closed contact is usually used for mechanical switch, which is connected with the way described
below.
Notes:
The logic for emergency stop, pause and travel limit of the system is the same, i.e., they are all connected
to normally-opened contact(NO contact) or normally-closed contact(NC contact).
After powered on, the system will automatically check the level of activation bit as control reference.
Therefore, if external start switch is not connected, the corresponding activation bit should be connected to
24V ground (similar to connection to NC contact) or nothing(similar to connection to NO contact).
10.2. System Output Principle
Notes:
+5
Control
24V
Intermed
iate relay
+2
4V
Load
COM(+24V)
Internal CNC System
System output
25-pin socket
24VGND
