RDC5121 Control System Manual
SHENZHEN RUIDA TECHNOLOGY
7
3.1 Interface of Main Power Source JP1
3.2 Udisk Interface
Udisk is a USB-AM interface. The controller may visit the u-disk by this interface.
3.3 PC-USB Interface
PC-USB is a USB-BM interface. The controller may communicate with PC by this port.
3.4 Special IO port
The Special IO port is defined as follows:
Pi
n
Symb
ols
Definitions
1
GND
Power ground (output)
2
DrProc
Input from protective port. If the machine needs to be protected in
the special state (such as door open protection), the protective
signal can be inputted from this pin. This pin can be enabled and
prohibited. This signal is not inquired by the mainboard if this pin is
prohibited; if this pin is enabled, when the input is high-leveled or
this input port is suspended, the machine will be protected, the
work suspended and the laser closed.
3
FootSW
Input port of foot switch. The connection method is: when the
pedal is stepped down, the low-level signal will be inputted to this
port; when the pedal is released, the port will be disconnected or
the high-level signal can be inputted to this port; when the
stepped-down pedal is held for not less than 100 ms, if the
Pin
Symbols
Definitions
1
+24V
24V power positive (input)
2
GND
24V power ground (input)
3
GND
24V power ground (input)
4
NC
This control system employs single 24 power supply. For a certain
margin, it is suggested to select 24V/2A power.
Caution
