Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: dfurlano on September 13, 2009, 04:59:55 PM
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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
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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
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The NSK is the spindle controller and the Gecko sends the signal.
Dan
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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
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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
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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?
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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.
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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.
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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