To Next PageTo Next PageWhat to do if the outputs do not get enabled on CNC4PC Recording Equipment?
If the outputs of your CNC4PC Recording Equipment are not getting enabled or no signals are coming out, ensure that you are providing +5VDC to the EN (Enable Outputs) terminal, potentially sourcing it from the adjacent terminal. Also, verify that the parallel cable is securely connected to the PC parallel port.
Why is there noise in my CNC4PC Recording Equipment system, or why do the motors not move smoothly?
If you're experiencing noise in your CNC4PC Recording Equipment system or the motors aren't moving smoothly, ensure you're using a +5VDC 400mA power supply, as the board might be underpowered. Check for any hot spots on the board or its connections that could indicate a short circuit draining power. Measure the board's power consumption to ensure it's less than 400mA (depending on the features used). Also, consider external noise sources. Try using shielded cables, isolating VFDs or AC servos, and using 0.1mF capacitors between the I/O terminal and a ground of the board.
How to fix if the analog output of CNC4PC Recording Equipment does not reach 10VDC?
If the analog output of your CNC4PC Recording Equipment isn't reaching 10VDC, it could be due to insufficient pulse width. In Mach X, go to Config / Motor Tuning / Spindle and increase the Step Pulse length value, starting with 3 and experimenting up to 5. Also, the signal could be set to active low, or the breakout board might be inverting the signals. To resolve this, in Mach X, go to Config / Ports&Pins / Motor Outputs and change the active low status of the pin used for step.
What to do if an I/O pin might not be working on CNC4PC Recording Equipment?
If an I/O pin on your CNC4PC Recording Equipment might not be working, it could be due to a faulty chip. You may order replacement chips. Carefully move chips around and check if the problem moves around. Alternatively, the issue could stem from the parallel cable or port. Test with a different PC or parallel port to diagnose this.
Why are no signals coming out of my CNC4PC C11G?
To ensure outputs are enabled on your CNC4PC PCI Card, verify that you are providing +5VDC to the EN (Enable Outputs) terminal, which can be sourced from the adjacent terminal. Additionally, the Safety Charge Pump (SCHP) may be interfering; try disabling it initially and configuring it after your system is set up. Also, ensure the parallel cable is securely connected to the PC's parallel port.
How to troubleshoot a CNC4PC PCI Card that is not relaying the signal?
If your CNC4PC PCI Card isn't relaying the signal, first check for pin conflicts or Mach3 configuration issues. In Windows Device Manager, verify the memory address used for your parallel port (usually 378 for LPT1) and ensure no conflicts exist. In Mach3, go to Ports & Pins / Port Setup and Axis Selection to confirm the memory address is correct. Also, check that the pin you're using isn't used elsewhere in your setup by reviewing motor output and output signals. If this doesn't solve the problem, try a different cable, testing the pins with a multimeter before they reach the breakout board.
What to do if there is noise in the CNC4PC C11G PCI Card system?
If you're experiencing noise or unsmooth motor movement with your CNC4PC PCI Card, it could be due to the board being underpowered. Ensure you're using a +5VDC 400mA power supply. Also, check for shorts in the board or its connections, and measure the board's power consumption to ensure it's below 400mA. Blown chips can cause internal shorts affecting performance. Try using shielded cables and isolating VFDs or AC servos to address external noise sources. You might also try using 0.1mF capacitors between the I/O terminal and a ground on the board.
Why doesn't the analog output D reach 10VDC on my CNC4PC C11G?
If the analog output D on your CNC4PC PCI Card isn't reaching 10VDC, it could be due to an insufficient pulse width. In Mach X, navigate to Config / Motor Tuning / Spindle and increase the Step Pulse length, starting with a value of 3 and experimenting up to 5. Also, verify the active low status of the pin used for step in Mach X under Config / Ports&Pins / Motor Outputs, as the signal may be set active low, or the breakout board might be inverting the signals.
What to do if an I/O pin might not be working on CNC4PC C11G?
If an I/O pin on your CNC4PC PCI Card isn't working, a chip may have gone bad. You can try carefully moving chips around to see if the problem moves with them. Also, there might be a problem with the parallel cable or parallel port; test with a different PC or parallel port to check this.
How to troubleshoot if CNC4PC Recording Equipment board does not react to the signal?
If your CNC4PC Recording Equipment board isn't reacting to the signal, it might be due to a pin conflict or Mach3 configuration issue. Use Windows Device Manager to check the memory address used for your parallel port (typically 378 for LPT1) and ensure there are no conflicts. In Mach3, navigate to Ports & Pins / Port Setup and Axis Selection to verify the memory address is correct. Also, check that the pin you're using isn't being used elsewhere in your setup by reviewing motor output and output signals. The board may also dislike the waveform it is getting, so experiment with the active low status of the pin used for the frequency. If the issue persists, try a different cable or test the pins in the cable with a multimeter. If you suspect Mach3 Pulse Generation problems, test with a diff...
Ensures bidirectional parallel communications between PCs and peripherals, meeting IEEE 1284 Level 1 standards.
Allows selection of input configuration (pull-up or pull-down) via jumpers for optimal application.
Outputs buffered with high-speed, high-current buffers; can provide +5VDC at 24mA.
Features a microcontroller for complex SCHP signal sampling and analysis, enhancing system safety.
Provides visual indication of input and output signal status, driven by independent buffers.
Offers easily accessible ground or +5VDC connections near input/output pins for simplified wiring.
Allows enabling/disabling all outputs via a +5VDC signal, useful for safety monitoring or manual control.
Compatible with popular CNC software like Mach2, Linux EMC, and hardware like Geckodrive.
Utilizes TTL 5VDC signals for direct interface with parallel port products and other CNC4PC cards.
Features screw-on terminals for secure and easy wire connections without special tools.
Allows input and output pins to be used concurrently without affecting each other's functionality.
Details voltage ranges, off-state voltage, operation frequency, and signal delay for digital inputs.
Details output voltage, current, off-state voltage, frequency, and signal delay for digital outputs.
Requires a 5VDC, 1000mA power supply for operation. Critical warnings about polarity and voltage are provided.
Shows a simplified functional block diagram for high current output buffers driving outputs 2 through 9.
Illustrates the simplified functional block diagram for outputs 1, 14, 16, and 17, noting enable logic.
Presents a simplified functional block diagram for the input circuitry, including pull-up/down selection.
Explains the SCHP function using Mach software to provide a safety signal, preventing machine damage from software crashes.
Details steps for configuring the Charge Pump output in Mach3's Ports & Pins settings for safety.
Describes how to select SCHP operation mode (OFF/ON) using jumpers on the board.
Controls spindle speed using step/direction signals, converting step signals to 0-10VDC analog output for VFDs.
Features two relays with NO/NC positions for flexible AC/DC control, independent operation on pins 1 and 16.
Allows selection of +5VDC or GND for COM terminals near step/direction pins, accommodating different driver requirements.
Enables/disables all outputs via a +5VDC signal, allowing external control or safety system integration.
Illustrates wiring diagrams for connecting Normally Open (NO) and Normally Closed (NC) switches and push buttons.
Provides wiring diagrams for connecting NPN open collector proximity sensors, including parallel configurations.
Shows wiring diagrams for connecting PNP open collector proximity sensors to the C11G board.
Diagram for implementing an 'Auto Tool Zero' function using an input pin and pull-up resistor configuration.
Addresses issues like pin conflicts, incorrect waveform, or signal loss impacting board communication.
Troubleshoots problems with the EN terminal, SCHP configuration, or parallel cable connection affecting output signals.
Covers causes like underpowering, shorts, or external noise, and solutions like shielded cables or capacitors.
Details potential causes for faulty I/O pins, such as bad chips or parallel port issues, and troubleshooting steps.
Addresses insufficient pulse width or signal inversion by breakout boards affecting the analog output voltage.
The C11G-MULTIFUNCTION CNC BOARD (Rev. 8.2) is a versatile interface designed to connect computer projects with CNC machinery, leveraging parallel port control software. It aims to streamline device connections and minimize wiring errors, offering a robust and flexible solution for various automation tasks.
The C11G board acts as a bridge between a personal computer's parallel port and external devices, enabling control and communication for CNC applications. It is built to be IEEE 1284 Standard compatible, incorporating the recommended circuitry for bidirectional parallel communications. This ensures reliable data exchange between the computer and peripherals.
A key function of the board is its microcontroller-based Safety Charge Pump (SCHP). This feature allows for the implementation of a complex algorithm to sample and analyze the SCHP signal. When activated, the SCHP works as a safety mechanism, enabling or disabling the system based on a specific frequency signal (e.g., 12.5 KHz from Mach software) sent through one of the parallel port pins. This provides a powerful safety system, preventing unintended machine operation in case of software crashes or system startup/shutdown anomalies. The SCHP can be enabled or disabled via a jumper, and when active, a valid SCHP signal will cause pin 17 to go high, which can then be used to enable other external devices like breakout boards, servos, VFDs, or contactors.
Another significant function is the Built-in Variable Speed Control, accessible via pin 14. This feature allows the user to control a spindle using step and direction signals, treating it as an axis motor. The board converts the step signal into an optoisolated analog 0-10VDC output, which can command commercial Variable Frequency Drives (VFDs) or DC motor controllers. The analog output can be fine-tuned using an on-board potentiometer, allowing adjustment to different voltage requirements. This enables precise speed control for the spindle, where 5VDC might correspond to 50% speed and 10VDC to 100% speed.
The board also integrates two Electromechanical Relays with both Normally Open (NO) and Normally Closed (NC) positions. These relays are highly flexible and can be used for both AC and DC applications. One relay responds to Pin 1, and the other to Pin 16, allowing for independent control of two different devices simultaneously.
The C11G board is designed for ease of use and flexibility in various CNC setups.
While the manual primarily focuses on setup and operation, several aspects contribute to the maintainability and troubleshooting of the C11G board:
The C11G board is presented as a robust and user-friendly solution for integrating CNC control with parallel port-enabled computers, emphasizing safety, flexibility, and ease of troubleshooting.
General| Interface | PCI |
|---|---|
| Input Voltage | 5V |
| Output Voltage | 5V |
| Number of Inputs | 5 |
| Number of Outputs | 5 |
| Opto-isolation | Yes |
| Spindle Enable | Yes |
| Coolant Enable | Yes |
| Charge Pump | Yes |
| Output Type | Open Collector |
| Max Output Current | 100mA |
| Compatibility | Mach3, LinuxCNC |
