CNC4PC

Overview.
This card is the latest addition to the C11 – Multifunction CNC Board family of breakout boards. It incorporates a microcontroller that runs programs that monitor the drivers, e-stop and perform other functions.

Features

• Monitors E-Stop, Safety Charge Pump, and Drivers (it only monitors (G320/340, Viper, and Dugong drives at this time).

• Enables and disables the drivers.

• Buffered outputs. All inputs and outputs are buffered through the use of high speed and high power buffers. Each pins deliver 24 milliamps.

• Built-in Safety Charge Pump. There is an on-board safety charge pump, which is a circuit that acts a watch dog by monitoring that mach is in control of your system. Mach can be programmed in a way, so when it is “in control”, it delivers a 12.5 KHz signal through one of the ports. This card lets you use this signal to work as an On/Off Switch for your system, enabling a powerful safety system for your equipment. If you ever had windows crash on you, then this card is for you. The parallel port can also do weird things while the system is coming up, or down.

• Built-in Variable Speed Control. It has an optoisolated analog 0-10VDC output that will convert a step signal into an analog signal that can be used to command a commercial VFD. This analog can be adjusted using on-board pot, so this board can be adjusted to other voltages.

• Two Built-in 10 amp Electromechanical Relays with NO and NC positions. Mechanical relays are very flexible because they can be used for AC or DC and come with NO and NC (Normally Open and Normally Closed) positions. This relay can also be used for controlling spindle rotation.

• The common terminal to pins 2-9 can be ground or +5vdc. The common terminal to pins 2-9 can be ground or +5vdc. When you select program for the driver to used, COM will automatically become what the driver will need. If you select the program for the G320, COM = +5vdc, if you select the program for the G203V, COM = GND

• Microcontroller Based System. The microcontroller based system allows the implementation of complex algorithms for monitoring the system. It also allows the possibility of having firmware upgrades without having to change the board and rewire your system.

• E-Stop Connection. The E-Stop connection performs several functions:

- It will disable the outputs directly, without having to wait for the control to disable the system.

- It will trigger the control on Pin 10, when the e-stop condition is met.

- If open, it will keep the system on stand by.

• Status LEDs on all inputs and output connections. No more guessing. You can SEE all your signals. Save valuable time and brainpower for cncing.

• All inputs are outputs are tied to pull-down resistors. Pins are never in the air open to noise. If you leave a pin in the air you will get a LOW or 0. If you input a ground you will get a LOW and a +3.3 or+ 5 vdc signal will deliver a HI.

• Works directly with popular CNC hardware and software. Such as Geckodrive, DeskCNC or Rutex, and parallel port control software, such as mach2, Linux EMC, TurboCNC, CNCZeus and others. (Not all tested)