Connecting your CNC4PC C80 Expansion Board to your CNC machine involves several key steps. First, ensure you have the correct power supply. The board requires both +5VDC and +24VDC regulated power. It's recommended to use two separate power sources to maintain optoisolation: one for the +5VDC powering the optoisolators interfacing with your controller, and another for the +24VDC at 200mA to power the board itself. Double-check the polarity and voltage before connecting to prevent any damage. Second, the board needs a 24VDC signal to enable operation. You can control the output status using an external switch or a Safety Charge Pump. If not needed, place a jumper between 24VDC and the EN terminal. Third, understand the IDC26 pinout, which details connections for the LPT port direction signals, outputs, inputs, and power pins. Refer to the manual for the correct pin numbering. Fourth, adjust the configuration jumpers. There's a jumper on the board to select +12/24VDC or GND for the COM pins. Set this based on the voltage requirements of your sensors or switches. Fifth, consult the wiring diagrams in the manual. These diagrams illustrate how to connect switches, sensors (PNP and NPN), and optoisolated outputs correctly. Always follow these diagrams precisely. Finally, confirm compatibility. The C80 board works with Regular Parallel Port, ESS, 5LPT, C76, and UC100 controllers. Make sure your CNC machine's controller is compatible with the CNC4PC C80 Expansion Board.
