Need Help! Fanuc servo amps - CNCzone.com-The Largest Machinist Community on the net!

Dave3891 · #1 10-23-2010, 11:10 AM

How interchangable are fanuc servo amps?

I have a 18m controller and want to add a 4th axis, but I am not sure if I have to use the same servo amp and the other 3 axis or if I can use a different model.

Does anyone have a manual or something that has info on fanuc part numbers (what they mean) and compadability?

Thanks
Dave

tmbruno28 · #2 10-25-2010, 01:53 PM

is your machine using FSSB (optical fiber) or serial cable (connection on jv* on the amplifier).

Dave3891 · #3 10-25-2010, 05:37 PM

its using a JV* cable

Fanuc Mate · #4 11-02-2010, 05:19 PM

You need to spec the amp against the required motor. Do you have a fanuc descriptions manual or functions manual? If not google it.

So if your 4th axis motor is the same as anyothers, use the same amp and parameters. You might need some PMC mods too.

Dave3891 · #5 11-02-2010, 05:32 PM

I have not decided on the motor spec yet.

I do have all the fanuc 18m manuals tho.

What kind of power is normaly needed for a 4th axis for machining steel with about a max of 10 inch dia?

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