Schaublin 125-CNC retrofit.
22 Feb 2021 13:32 - 22 Feb 2021 13:33 #199704
by RotarySMP
Replied by RotarySMP on topic Schaublin 125-CNC retrofit.
Good questions thanks. The only information in the manuals is that they are permanent magnet servos. I find it difficult to beleive that a company like that would confuse resolvers for tachos or encoders. Especially as the same wiring diagram includes the Heidenhain encoder for the main spindle.
This is the view up under the lid of the Z axis motor.
This is the view up under the lid of the Z axis motor.
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Last edit: 22 Feb 2021 13:33 by RotarySMP.
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22 Feb 2021 14:12 #199705
by db1981
Replied by db1981 on topic Schaublin 125-CNC retrofit.
that's an old kearfott singer resolver.....
then 1 wire is shared with one of the motor wires.
then 1 wire is shared with one of the motor wires.
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22 Feb 2021 14:13 #199706
by Aciera
Replied by Aciera on topic Schaublin 125-CNC retrofit.
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22 Feb 2021 14:17 #199707
by db1981
Replied by db1981 on topic Schaublin 125-CNC retrofit.
take a look at the granity argon drives. they are able to control brushed and brushless dc with resolvers. And have the advantage of direct 230V AC Power input.
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22 Feb 2021 14:38 #199711
by RotarySMP
Replied by RotarySMP on topic Schaublin 125-CNC retrofit.
Hmmm, that is a tasty solution. Keep the motor and their cables, but only need two drivers the size of paperbacks powered by single phase AC. They are pretty pricey, at €500 including VAT, but would save me a bunch of time mucking around with mounting replacement motors. WIth a hobby, is time save = money a thing?
Mrk
Mrk
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22 Feb 2021 14:55 #199714
by db1981
Replied by db1981 on topic Schaublin 125-CNC retrofit.
hmm, i'm not shure if this resolver will work with todays servo drives.
There is less information in the web about this types. in other boards is written that this old ones have 2 input coils and one output coil, and were driven with an sin and cos signal.
todays resolvers have only on input, and coils for sin/cos output.
don't know if they could be driven backwards, I'm not old enough for such electro/magnetics stuff
There is less information in the web about this types. in other boards is written that this old ones have 2 input coils and one output coil, and were driven with an sin and cos signal.
todays resolvers have only on input, and coils for sin/cos output.
don't know if they could be driven backwards, I'm not old enough for such electro/magnetics stuff
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22 Feb 2021 15:09 - 22 Feb 2021 15:21 #199716
by Aciera
Replied by Aciera on topic Schaublin 125-CNC retrofit.
You might actually want to inquire whether the 7i49 can actually handle this kind of "3-phase" resolver.
[edit]
I guess the proper term is "synchro resolver" or just "synchro"
[edit]
I guess the proper term is "synchro resolver" or just "synchro"
Last edit: 22 Feb 2021 15:21 by Aciera.
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22 Feb 2021 17:47 #199737
by tommylight
Replied by tommylight on topic Schaublin 125-CNC retrofit.
I have used Argon drives on a Hurco retrofit, but not sure they had resolver support. It is mentioned that they will in the future, although all that is a bit foggy by now since that was several years back.
They are nice drives, but do have a very irritating issue, namely they use RS485 at very high speeds to program the drives and that link fails as soon as you enable the drive, so use shielded RJ45/STP cable, otherwise .....
They are nice drives, but do have a very irritating issue, namely they use RS485 at very high speeds to program the drives and that link fails as soon as you enable the drive, so use shielded RJ45/STP cable, otherwise .....
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22 Feb 2021 20:34 #199763
by RotarySMP
Replied by RotarySMP on topic Schaublin 125-CNC retrofit.
They offer this widget to support resolvers.
store.granitedevices.com/argonaccessories/13-gdares.html
store.granitedevices.com/argonaccessories/13-gdares.html
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23 Feb 2021 07:36 - 23 Feb 2021 07:52 #199800
by Aciera
Replied by Aciera on topic Schaublin 125-CNC retrofit.
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Last edit: 23 Feb 2021 07:52 by Aciera.
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