New Build, Ziggy's Onefinity Modification

[suntravel]

24DC needs only a diode on the coil, but I use SSR without coils.

Uwe

[CNCMaryland]

Recently CNC4PC developed a motherboard that plugs directly into the Acorn DB25 and uses very similar stepper drivers as the G540. So you don't pay for the IO on the G540 that you don't use.

Link?

[Sword]

CNC4PC developed a motherboard that plugs directly into the Acorn DB25 and uses very similar stepper drivers as the G540. So you don't pay for the IO on the G540 that you don't use.

Inquiring minds would like to know. I have several G250X drives just lounging in a box.

[Ziggy]

You do not need snubbers on the Acorn relays.

Uwe

Where did you buy your snubbers for 24v contactors Mr. Suntravel?

I made my own. I put a .1uF capacitor in series with a 100 Ohm resistor.

https://www.mouser.com/ProductDetail/KE ... qNvQ%3D%3D

https://www.mouser.com/ProductDetail/YA ... sd7g%3D%3D

[Ziggy]

https://centroidcncforum.com/viewtopic. ... ber#p68850

Post by tblough » Fri Oct 28, 2022 5:42 pm

Any coil or inductive device connected to relay contacts (either Acorn relays or external relays) must have a snubber to prevent arcing and destruction of the relay contacts. Snubbers should be placed as close to the inductive device as possible.

This is why I was asking about connecting snubbers to the relays.