CNC SH-2100AH-QG, Руководство пользователя

Страница: 41 / 55

Model SH-2012AH-QG
Cutting Machine
（
C002
） 36
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 Starfire.
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:
Control signal = 0 switch/relay on(+24V circuit on, low effect and sign transmission)
Control signal = 1: switch/relay off(+24V circuit off and no sign transmission)
30
0
+5
V
Control
signal
24V
GND
Intermed
iate relay
+2
4V
Load
COM(+24V)
Internal CNC System
System output
25-pin socket
24VGND
+24V
Input
signal
3K
5V
GND
System
input
Internal CNC
System
NC contact
24VGND
+5V
www.collectcnc.com