LinkBack URL
About LinkBacks
I have this same board. How do you have this wired up? It is just a switch, so it seems like your problem could be elsewhere?
Scott
So i bought this device. It is suppose to be able to turn your spindle on and off. I wire it up and it turns it on and off fine. But the problem is. Some reason it makes my spindle speed up then slow down and then speed up and then slow down and etc. Just keeps changing speeds.
Any advise? Maybe my spindle is just to big? Do i need a bigger Relay?
http://cnc4pc.com/Solid_State_Relay_Board.htm
I have this same board. How do you have this wired up? It is just a switch, so it seems like your problem could be elsewhere?
Scott
Consistency is a good thing....unless you're consistently an idiot.
Well if i wire my spindle direct it works fine.
I took the black wire from my spindle and put it in one end. And then hooked the other end of the board up to ground and pin 14 on my breakout board. And to power the unit i used the the CNC4pc power supply. The A4 power supply.
THe outputs are isolated. The black from your motor should go to one terminal on the output side and the black from the outlet (120vac) should go to the other terminal. It sounds like you may be trying to ground your motor through your break-out board (you mentioned pin 14?) Run the current directly through the board - no jumpers to your BOB on the output side of the SSR board.
Scott
Consistency is a good thing....unless you're consistently an idiot.
Here is my professionally prepared explanation:
Scott
Consistency is a good thing....unless you're consistently an idiot.
this is exactly how i have it hooked up. it almost sounds like my spindle is turning on and off ever few seconds.
Originally Posted by Smackre
Sounds Like your port is only putting out 3.3v instead of 5 causing the circuit to turn on and off.
You should be able to take a lead from your 5 Volt supply and connect it to the signal input of the board with a 100k resistor in series. Disconnect the signal wire first. This will tell you if it is a problem from the parallel port.
Paul
100k may limit the current too much <50µa., preventing it from switching.
The board should already be current limited, so no resistor should be necessary.
Al.
CNC, Mechatronics Integration and Custom Machine Design (Skype Avail).
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E.
Any results?
I was out of ideas, so I figured I would let the pros handle it. Sorry to be of such limited help, Smackre.
Scott
Consistency is a good thing....unless you're consistently an idiot.
Well i came into work today and tried the 5v psu idea. Some reason i cant get it to turn on at all atm. The spindle works great wired direct but with the relay installed i cant get it to work. i will work on it more in a few hours but right now i got work that has to get out of the door.
Smackre,
The optoisolators will take the 3vdc signal without any trouble. I would believe it could be more related to a problem with the board, or the device you are running.
1. It could have a loose component. Please check if you see if you see any parts of the board heating up while your spindle is running.
2. What size motor and fuse are you using? Are you sure you are not exceeding the capacity of the relay of fuse?
Please let me know the release # on the board.
Arturo Duncan
http://cnc4pc.com
Posting Permissions
