CNC4PC C80 Expansion Board User Manual
- June 9, 2024
- CNC4PC
Table of Contents
CNC4PC C80 Expansion Board
OVERVIEW
This card provides an easy way to connect your inputs and outputs from your port using a LPH26pin Ribbon Cable or parallel port. Provides terminals for connections and conditions signals for use in CNC applications, this version can be easily mounted on control boxes using DIN rails and can also accommodate ribbon cables or DB25 connectors.
FEATURES
- Terminal Block for all I/Os.
- Expansion port for Mother Board. Connect the C76 or ESS expansion board.
- Open collector Outputs pins optoisolated 2, 3, 4, 5, 6, 7, 8, 9, 1, 14, 16, 17.
- Input pins 10, 11, 12, 13, 15.
- Terminal Block input with close by ground or +5VDC connections, COM and outputs with + 24VDC and ground
- Screw-On connections for all terminals. You only have to screw-on the wires to make all your connections.
- Status LEDs for enable.
- Fully Optoisolated Inputs and Outputs.
- External Enable Pin.
- Din rail mountable. NEW.
- Pluggable Screw-On Terminals. NEW.
SPECIFICATIONS
DIGITAL INPUT SPECIFICATIONS
On-state voltage range| 24V DC
Maximum off-state voltage| 0.8V
Maximum operation frequency| 4 MHz
Typical signal delay| 10nS
DIGITAL OUTPUT OPEN COLLECTOR SPECIFICATIONS
Maximum output voltage
| (24V power supply voltage) + 0.5V
Typical output current| 6A
Maximum operation frequency| 4 MHz
Typical signal delay| 0.25 µS
Time of transition to high impedance state| 12 s*
BOARD DESCRIPTION
REQUIREMENTS
Power Requirements
Regulated +5VDC and + 24VDC is required to power this board.
WARNING
Check the polarity and voltage of the external power source and connect the
5VDC and GND. Overvoltage or reverse-polarity power applied to these terminals
can cause damage to the board, and/or the power source.
POWER TERMINAL
To preserve optoisolation two independent power sources should be used. A +5vdc to power the optos that interact with the controller (which could be a USB cable) and a +24vdc at 200mA to power the board.
Note. It can be powered by using Pin 26 of the IDC26
Enable pin.
The card must be provided with a 24VDC signal to enable operation. This
feature has been added to externally control the status of the outputs. An
external switch or a Safety Charge Pump can be added to provide the enabling
signal. If this function is not required, a jumper can be placed between 24VDC
and the EN terminal
LED INDICATOR
The power LED lights indicate that the system is ready but disabled. When
Status LED, (Green LED) lights, it indicates that the system is enabled.
PINOUT
Pin Numbering
IDC26
| IDC26 Pin number | LPT port direction signal |
|---|---|
| 1 | Output 1 |
| 2 | Output 2 |
| 3 | Output 3 |
| 4 | Output 4 |
| 5 | Output 5 |
| 6 | Output 6 |
| 7 | Output 7 |
| 8 | Output 8 |
| 9 | Output 9 |
| 10 | Input 10 |
| 11 | Input 11 |
| 12 | Input 12 |
| 13 | Input 13 |
| 14 | Output 14 |
| 15 | Input 15 |
| 16 | Output 16 |
| 17 | Output 17 |
| 18 | Watchdog (Ground to Enable) |
| 19 – 25 | GND |
| 26 | +5VDC |
COMPATIBILITY Regular Parallel Port, ESS, 5LPT, C76, UC100
CONFIGURATION JUMPERS
Connecting Switches Using the COM = 12/24VDC
There is a jumper that allows you to select +12/24VDC or GND for the COM pins.
While this board supports input +24VDC signals, different kind of sensors,
switches using different voltages can be connected using the diagrams that
follow:
Note. This board has one Input bank, (pins: 10, 11, 12, 13, and 15) and (dedicated outputs: pins 1, 14, 16, and 17 or 2-9), and all the inputs of the same bank have the same configuration. The below wiring diagrams are an example, any input can be used for the connections.
Connecting Switches Using the COM = GND
Wiring diagram to connect switches
EXAMPLE WIRING OPTOISOLATED OUTPUT
The power source of 12/24 VDC is for the correct functioning of the outputs of (2-9) and (1,14,16,17).
WIRING DIAGRAM SENSORS
Connecting PNP sensors
Wiring diagram to connect PNP open collector proximity sensors.
Connecting NPN sensors
Wiring diagram to connect in parallel NPN open collector proximity sensors.
DIMENSIONS
All dimensions are in Millimeters.
Fixing holes (4mm).
DISCLAIMER
Use caution. CNC machines can be dangerous machines. Neither DUNCAN USA, LLC nor Arturo Duncan are liable for any accidents resulting from the improper use of these devices. This product is not a fail-safe device and it should not be used in life support systems or in other devices where its failure or possible erratic operation could cause property damage, bodily injury or loss of life.