CNC4PC C15 User manual

Cnc4pc.com 1 / 3 07/07/2007
CNC4PC
Manual
C15 - DUAL RELAY BOARD Rev1
Overview
This board serves as a basic dual relay board with 2 electromechanical relays.
Features
•Opto-Isolated Input.
Isolates input connections to protect your computer from shorts circuits. An opto-isolator is an
integrated circuit that transmits the signal through an encapsulated LED and photo-transistor,
when the signal is present, the LED lights, and the photo-transistor captures it, and relays the
signal. That way your computer’s electronics is completely isolated from your circuitry.
•All TTL +5VDC or +3.3VDC Signals.
Interface directly with parallel port interface products and other cnc4pc.com cards. 5VDC
(TTL) signals are very common among automation devices..
•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, CNCPlayer, CNCZeus and others. (Not all tested)
•Screw-On connections for all terminals.
You only have to screw-on the wires to make all your connections.
•Works as a set of switches for powering your hardware.
This board can be used for turning on or off spindles, enabling contactors for large spindles,
coolant pumps, electro valves, etc.
•Controls 2 independent AC or DC devices.
•The relays can take loads of up to 10 amps 28vdc or 125VAC and 6
amps at 220VAC.
Keep in mind that motors can draw up to 3 times the rated current on start up.

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Installation
Wiring:
RJ45 CONNECTOR:
Use the RJ45 for using an standard Ethernet cable for fast connections. The pin assignment
is as follows:
Pin1=12VDC
Pin4=INPUT SIGNAL 1

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Pin5=INPUT SIGNAL 2
Pin8=GND
If using this connector optoisolation in the grounds will be lost.
Dimensions:
Disclaimer:
Use caution. CNC machines are dangerous machines. DUNCAN USA, LLC or Arturo Duncan
are not liable for any accidents resulting from the improper use of these devices.