Acorn VS Oak on a Mori Seiki SL1H Turning Center

[Wolfenstien]

Does anyone know if you can't derate a servo motor? Didn't come up with much info on Google. Reason I ask is I was incorrect regarding the servo size on this machine. Original servos are .4kw. Also they are 3-4 times larger than the new ac units. Price wise there is very little difference between the .4 and .75kw units (including drives) so I'm inclined to go bigger because it will be easier to adapt.

Just don't want to damage something by using over powered servos in a machine that wasn't designed for it. Not that I have any doubts about the machine being rigged but the engineers who designed these probably picked the best motor for the application not the cheapest like we so often do nowadays.

Anyway. Just curious if I should avoid going to large on the servo.

[Wolfenstien]

Also could I get a part number and pinout for the servo drive connector that would plug into the oak?

[martyscncgarage]

Does anyone know if you can't derate a servo motor? Didn't come up with much info on Google. Reason I ask is I was incorrect regarding the servo size on this machine. Original servos are .4kw. Also they are 3-4 times larger than the new ac units. Price wise there is very little difference between the .4 and .75kw units (including drives) so I'm inclined to go bigger because it will be easier to adapt.

Just don't want to damage something by using over powered servos in a machine that wasn't designed for it. Not that I have any doubts about the machine being rigged but the engineers who designed these probably picked the best motor for the application not the cheapest like we so often do nowadays.
Ok
Anyway. Just curious if I should avoid going to large on the servo.

I don't think you've got anything that worry about going from .4 to .75kw servos other than a little better performance.

[tblough]

Also could I get a part number and pinout for the servo drive connector that would plug into the oak?

http://www.centroidcnc.com/downloads/ce ... manual.pdf on page 69-72 of the install manual has drive cable pinouts and connector part numbers. Digikey has both the shells and contacts available.

[martyscncgarage]

If you are going to go with OAK and DMM DYN4, just buy the cables from DMM that will connect DYN4 to OAK.
(Unless you have the proper crimping tools, the experience, patience and the time to make up these cables)

Marty

[Wolfenstien]

Getting close to pulling the trigger on some components. (Probably put my DMM order in soon so I can play with the mounting plate adapters over Thanksgiving.

I've started drawing up my particular machine schematics. Some things like the VFD wiring schematic I'll probably just keep a separate sheet for right out of the centroid manuals, but I'm hoping to draw a sheet for each component as its wired so that I can easily see what I was doing down the road. Been using Scheme it by Digikey and that seems not to bad. Could be better, but could be worse too. Once I'm done I'll post some links to the dwgs.

https://www.youtube.com/watch?v=0NFD_CUQlm0

Noticed this video and am intending to do something similar. Build a panel outside the machine cabinet and then bolt it in place in the cabinet.
I kinda like their layout. Anyone see anything here they object to? Looks like they have an ADD1616 card sitting right on top of the oak with standoffs. Not sure if this is standard, clever, or risky. I'm also guessing that they have the optional riser block under the oak and probably have the power supply tucked in underneath. Overall a very compact and tidy looking setup.
I'm thinking I might model after what they've got so if something looks hinky I'd love to get your comments before I start into it.

Regarding the change from a la cart pricing on the oak board to the free/pro/ultimate levels like the acorn is there any input Centroid can make regarding timeline for this as well as pricing levels?

Also are the relays on the oak and add1616 replaceable? Obviously they are soldered in but are they user replaceable I guess? Or are they more of a return to factory type item?

Thanks again,

[Wolfenstien]

Two questions.

1) does this layout look ok? If yes I'm going to start wiring.

2) since I've settled on the oak board should I start a build thread in the main forum.

Also adapter plates are complete. See attached.

[Wolfenstien]

Adapter plate

[martyscncgarage]

Looks fine to me.
Be sure you follow the OAK manual and do the bench test if you haven't already.
Yes, I think you should start a build thread.

Did you buy DMM's DYN4 to OAK cables?

Marty

[Wolfenstien]

Looks fine to me.
Be sure you follow the OAK manual and do the bench test if you haven't already.
Yes, I think you should start a build thread.

Did you buy DMM's DYN4 to OAK cables?

Marty

Thanks for taking a look marty.

Need to go reread the oak install manual right now.

I did purchase dyn4 to oak cables. Dmm gets them from centroid so will be a few more days till they arrive.