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NSK, Gecko, Mach3 questions (answered)
« on: September 13, 2009, 04:59:55 PM »
Don't know if anyone has tried this but I have an NSK E2550, Gecko540, and Mach3.  I asked Gecko about the connection from the 540 to the NSK controller and I believe I have that correct.  When I try and set up the ports and pins in the Mach3 configuration tab I set both the set and direction to pin 14 and the ports to 1. Under spindle setup I set "Use spindle motor output" to "PWM". I disabled the relay control.

So far i cannot get it to work was hoping someone could offer some suggestions.

TIA

Dan
« Last Edit: November 28, 2009, 10:06:19 PM by dfurlano »

Offline Dan13

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Re: NSK, Gecko, Mach3 questions
« Reply #1 on: September 14, 2009, 01:24:59 AM »
Hi Dan,

What is the NSK E2550 and what are you trying to do with it? And how does the G540 relate to this?

Daniel
Re: NSK, Gecko, Mach3 questions
« Reply #2 on: September 14, 2009, 08:11:08 AM »
The NSK is the spindle controller and the Gecko sends the signal.

Dan
« Last Edit: November 29, 2009, 06:28:47 PM by dfurlano »

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Re: NSK, Gecko, Mach3 questions
« Reply #3 on: September 14, 2009, 09:28:40 AM »
Dan,

OK, so I understand the NSK is a VFD that takes analogue 0-10V.

As far as I know, the PWM signal is output to the step pin, so I'd suggest disabling the direction pin. If it doesn't help I would double check the connections are correct.

Daniel
Re: NSK, Gecko, Mach3 questions
« Reply #4 on: September 21, 2009, 06:42:08 PM »
So far no luck.

Motor outputs: I have pin 14 as the step pin and 1 as the step port.

Output Signals: Output #2 is set to Port 1 Pin 1.

Spindle Setup: Relay Control - Not Disabled (Disable spindle relays not checked). Flood mist Control - Disabled (Disable flood/mist relays checked). Modbus Spindle - Enabled checked. Motor Control - Use Spindle Motor Output checked, PWM control checked. All else as defaults.

So far I get nothing coming out of the Gecko on 7,8 and 9.   My assumption is that i should be able to measure the voltage that needs to go into the controller.

I attached a page from the Gecko 540 and the NSK controller to identify the connections.

Any help is appreciated.

Dan
« Last Edit: September 21, 2009, 06:44:53 PM by dfurlano »
Re: NSK, Gecko, Mach3 questions
« Reply #5 on: October 28, 2009, 02:30:47 PM »
I am having the very same problem.  I can't get anything to read out on ports 7,8,9 on my gecko540.  Anyone figure this out yet?
Re: NSK, Gecko, Mach3 questions
« Reply #6 on: October 28, 2009, 03:24:21 PM »
Most likely the motherboard is an older rev on the Gecko.  You need to talk to the tech guys at Gecko to see about a replacement.
Re: NSK, Gecko, Mach3 questions
« Reply #7 on: October 30, 2009, 10:41:28 AM »
Found the problem.  I just didn't understand how the VFD actually works.  First of all, I am not using a VFD.  I am using the gecko VFD to control an SCR, wich in turn, heats up my hotwire.  I thought that the 0-10VDC just came out of the G540.  I called gecko and they explained that the voltage on the VFD circuit has to come from somewhere else.  e.g. to test if VFD is working...  connect the negative side of a 9volt battery to pin 7 on the gecko.  connect the positive side of that battery to pin 9 (VFD +10VDC),  then connect a voltmeter to pins 7 and 8.  Basically the gecko takes in 10volts on pin 9, and releases 0-10 volts on pin 8.  Really, it just acts as an electronic potentiometer.  So if you set up a spindle pully in mach3 to have 0-100 rpm, and you set the rpm to 50 and turn on the spindle, you should see half of the 9-volt battery charge come out of pin 8 (with 7 as ground).

In my case, I got rid of the 9-volt batter and grabbed an old ac/dc converter in the back room and used it.

Everything works beautifully now.



Re: NSK, Gecko, Mach3 questions (answered)
« Reply #8 on: November 28, 2009, 10:09:17 PM »
I got the controller working with Mach3.  It wasn't all that hard but I did need to add a 24vdc power supply to get the start/stop functional.

I attached a modified G540 sketch if anyone is interested.

Dan
« Last Edit: November 28, 2009, 10:14:49 PM by dfurlano »