I'm popping in here to ask a quick question.
On my CNC Centroid mill I have 12 VDC M-function control outputs.
To control my air mist coolant I have one wired to a 12 VDC relay controlling 110 VAC to a solenoid valve.
This worked great for the past year.
This past week I noticed the servos jump when the solenoid valve is activated. And once the XYZ coords were affected.
My manual says the control relay is internally snubbed.
The used relay I added had a diode on the coil which I left in place.
I used shielded cable (grounded at one end) from the control to the used relay.
I used regular extension cord wire from relay to solenoid valve.
I know little of electronics. Is there something that should be placed across the legs of the 110 VAC solenoid coil to help with noise?
Thanks,
Bob |