FAQ - The five questions posted most recently:

I want to know if the use is possible with the I/O emulator where i want to attach my pendent without the software .Sorry for my not correct english.

Wed, 11 Aug 2010 13:21:00 GMT

I am not sure I understand what you aretrying to do.� Here are some facts thatmight answer your question:

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-��The PoKeys is a USB device, it does requirea driver which is installed when you install the PoKeys software.

-��The PoKeys software can be downloadedfreely from the website, it is necessary to configure the I/Os and functions.

-��I/Os and functions can be accessed usingVisual Basic programs.

-��If using mach3, there is plugin, thatallows interfacing the I/Os and functions of the PoKeys with Mach3.

-��In the webpage for our pendants and panels,you can download brains (mach3 programs) to run the pendants.

-��You can modify the supplied brains or writeyour own.� You can use the tutorialvideos found in the mach3 support site to learn how it is done.

-��You can customize the panels by addinghardware, such as additional keypads, LCD displays, etc�

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I have and CNC Router and use a VFD with spindle. I would like to use your C6 - Variable Speed Control Board, to control the start and stop and speed. I'm useing Mach3 for the control software. If is is workable, I would need detailed instructions to wire it to my system.

Wed, 14 Jul 2010 10:34:00 GMT

It is fairly easy to wire and configure.�Basically this is what you need to do:

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1.��The 6 requires buffered signals, so you do need a breakout board thatbuffers the signals.

2.��Check the safety implications wiring a motor to be started by a PC basedcontrol.� I strongly suggest you get aSafety Charge Pump.� This ismicrocontroller based circuit that will disable all the outputs while the Mach3is not in control of the parallel port.� Rememberthat when the PC starts up, windows can send signals to the parallel port,these could start the motor, creating a safety hazard.� I strongly suggest to my customers to use aC11G http://www.cnc4pc.com/Store/osc/product_info.php?cPath=33&products_id=46 instead ofa C6, as it already buffers the signals, has a built in Safety Charge Pump, andcomes with the relays to start/stop the spindle motor.

3.��VFDs usually comes setup to you can control them externally with apotentiometer for speed control and switches for start/stop, cw/ccw.�

a.�� So you needto wire the analog output of the C6 to the analog input of the VFD. (P2, orwiper).

b.�� Wire thecommon for this signal. (P1 or wiper).

c.�� Power theanalog circuit.� If your VFD can put out20mA on the reference voltage (P3), you can use this to power the circuit.� If you are not sure, it is better to get anexternal regulated +12vdc power supply.�

d.�� You need toconfigure and calibrate mach3 so that the analog signal varies as the speed iscommanded to vary.� Detailed instructionsare found the manual.

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If you require further assistance, please do not hesitate in contactingme.

I recently tried to hook up the spindle speed output to my kbic speed controller with rather spectacular results, frying both the analog output of the board and the speed controller. I followed a wiring diagram from your site (http://cnc4pc.com/Tech_Docs/KBIC.pdf) on how to connect a C6 to a KBIC controller and it seemed pretty straight forward to do but apparently it was not the right way of doing it. can you please verify the diagram is correct or not and tell me how to do it properly so this won't happen again? Regards EK

Wed, 17 Mar 2010 13:27:00 GMT

Dear Sir,

I am sorry to hear about your mishap�

Yes, the wiring diagram is correct.� The only explanation for the problem you had has to do with the power supply you used to power the analog output circuit of the C11G, It must have been common with the logic.� You use a multimeter to check for continuity before applying power to the system.

It is clearly stated in the documentation that this circuit has to be isolated.

Please check this and let me know what you find.

Thanks,

Arturo Duncan

http://cnc4pc.com

On the M13 Modbus Expansion Board what is the maximum step pulse frequency that can be sent to the outputs? The M13 spec sheet describes bypassing the optoisolators to increase the max input reading speed to 4MHz. But when outputting a step pulse train, how fast can I go? I would like to send a 250kHz pulse train output to a Gecko G320 drive. Is this reasonably possible?

Fri, 29 Jan 2010 12:50:00 GMT

Eckart,�Please note that while the Modbus core can communicate with outputs at very high speeds, the core cannot communicate at those high speeds with the PC control software. This due to bandwidth limitations on the serial channel.� Please note that for motion control you need real time, such as a parallel port or an external motion controller.�I think that what you need is the Smooth Stepper: http://www.cnc4pc.com/Store/osc/product_info.php?cPath=51&products_id=185.�Please do not hesitate in contacting me if you have further questions.�Thanks for your interest in our products.�Arturo Duncanhttp://cnc4pc.com

What is the pinout of the A16 LPH 26 Pin to 25 Ribbon Cable: http://www.cnc4pc.com/Store/osc/product_info.php?cPath=29&products_id=204.

Wed, 20 Jan 2010 15:20:00 GMT

What is the pinout of the A16 LPH 26 Pin to 25 Ribbon Cable: http://www.cnc4pc.com/Store/osc/product_info.php?cPath=29&products_id=204.

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Here is the pinout: http://cnc4pc.com/images/A16pinout.jpg.

Arturo Duncan

http://cnc4pc.com