Reply with QuoteI haven’t this time around I forgot. But that’s only for the speed control correct? Either way my relay isn’t clicking. I do have a meter. So what should I check and for what voltage should I expect to see?
Re: VFD interface to other equipment.
That looks to be correct the way they have it wired this is basically the same as what I just postedOriginally Posted by brianhatley
Have you set the J1 jumper on the VFD Drive for Remote control
Mactec54
Re: VFD interface to other equipment.
I haven’t this time around I forgot. But that’s only for the speed control correct? Either way my relay isn’t clicking. I do have a meter. So what should I check and for what voltage should I expect to see?
Re: VFD interface to other equipment.
Either you are not getting the control from signal from Mach or the output of the G540 may be shot.
You should get ~1v or so from 48v GND (common) to the relay pin connected to the G540, and 48v from GND (common) to the other pin, if 48v on both, then the relay is not picked up.
Do you have a diode to place across the coil?
Al.
CNC, Mechatronics Integration and Custom Machine Design
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.
I got it to work with the rs485. I downloaded the haunyang vfd plugin from
Mach 3’s website. Hooked up a couple wires and that was basically it.
Re: VFD interface to other equipment.
That's is the best way with these VFD Drives you have much better control with the speeds control
Mactec54
Re: VFD interface to other equipment.
If it was not clicking then you either have something wired incorrect or a configuration problem with your output pins
Mactec54
Re: VFD interface to other equipment.
Yes it is a very nice way for control and eliminates the necessity to convert the Mach digital signal to analogue.
Which was the convertor interface you used?
Did you use the plug-in from Sebastien?
Al.
CNC, Mechatronics Integration and Custom Machine Design
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.
Re: VFD interface to other equipment.
I tried that one first. But Mach 3 said that the plugin was defective and to remove it. Upon some short research I found the other plugin from
The machsupport page
https://www.machsupport.com/forum/index.php?topic=14182.0
A big part of me wants to tear it back
Apart to find out what I was doing wrong. But it’s working great now and I really don’t want to push my luck.
Re: VFD interface to other equipment.
Which was the RS485 convertor interface you used?
Al.
CNC, Mechatronics Integration and Custom Machine Design
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.
Re: VFD interface to other equipment.
i used this one. seems to be the most common from what i've researched
https://www.ebay.com/itm/CH340-USB-t...72.m2749.l2649
Re: VFD interface to other equipment.
Good, that is the one I picked on to replace the RS232 version I was using.
Thanks.
Al
CNC, Mechatronics Integration and Custom Machine Design
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.
Re: VFD interface to other equipment.
and it stopped working today. any way i can check to make sure the vfd is still good or the rs485 adapter?
I added this switch panel I made, and I blew out three of the switches before I realized I was wiring them wrong.. I know stupid me. I’m worried I fried something somewhere. But everything seems to work fine. I’m cutting now As we speak. I just can’t get the rs485 to Communicate with the vfd.
Pics
Re: VFD interface to other equipment.
I can't see as the photos are not very defined, you may have wired the sub box incorrect as well I don't see a separate Ground Bus as the Neutral has to be on it's own Isolated Bus, for any sub panels
Mounting component's on wood is a bad Idea you need a metal plate, Aluminum or steel unpainted where parts are mounted, this plate becomes the Ground Plane and is Ground bonded to the Main supply Ground
Mactec54
I’m not Much of an electrician, but my neutral is directly connected to the ground bus bar, wouldn’t that make them okay to ground to the panel?
That computer has been there for a long time. It’s just a bunch of scrap from an old drawer I threw together. I plan on making a better one later but this is low on my priority list.
My neutral is connected to the ground bus bar via a screw, I also ground the bus bar to the panel. , then I took a wire and connected my switch panel frame to the ground bus bar on my sub frame.
Ran my hits from the breakers and used the switch panel as the neutral/ground.
You think this wiring could be causing interference with the rs485 adapter or the vfd?
Re: VFD interface to other equipment.
No when you do a sub panel the Neutral has to be isolated from the Ground and can not be connected in any way or it will be dangerous and a code violation
Like this any other way would not be good
Mactec54
Re: VFD interface to other equipment.
Oh, I see. That’s an easy fix. My sub panel came with the bus bar attached to the neutral connection, my mistake was assuming it was the same wiring as the main. So I’ll get a few bus bars, and run an isolated neutral, and ground inside both my switch panel and my sub panel.
Could this cause communication issues with the vfd?
I put on a different adapter, this one seems significantly more rigid, it works again
Also I got some little bus bar terminal block things. I’ll go ahead and fix that panel wiring too!
Re: VFD interface to other equipment.
You only need the panel to be wired correct any other wiring outside of the sub panel would be normal wiring practice's
Check that the Built in bus to see if it is isolated or not most sub box's are when you buy them and some you just need to add the Ground Bus which mounts direct to the metal Box
A power Filter will help with any EMI noise this should be mounted close to the input power to the VFD Drive and all mounted on a Grounded metal Plate
Lambada RSEN-2030L for your filter
Mactec54
