[hoju1301]

I have two, Pac Sci Motors PMB32D and one PMB31D. They all have 2000line encoders. Theyre rated for 240v.

http://www.pacsci.com/products/servo...pmb/index.html

Since the rutex drives go only up to 100v, will i be able to run at full power, or rpm/torque with the drives?

[NC Cams]

Full rated power from any electric motor will ONLY be achieved if you can supply the motor with the FULL amount of VOLTAGE and CURRENT they need under peak load conditions.

If you CAN'T supply the required CURRENT and VOLTAGE, the answer to your power/speed/torque question is a resounding NO.

What will the motors do??? It depends on what your drives and P/S can suppply.

Peak torque will be supplied if you can supply the locked rotor amperage that the motors want to draw.

HOWEVER, if you are running at 1/2 the rated voltage, you may have a tough time achieving the peak current potential. I didn't bother to look at the motor specs nor did I look at the rutex drive capabilties.

Moreover and more importantly, since you didn't specify how much current your P/S can ultimately provide, I don't think anybody can predict how much torque you can expect out of your comination.

The rated motor speed can ONLY be achieved if you run at rated voltage.

Best UNLOADED speed you could ultimately hope for is 100/240 x rated speed.

This site might be of help/interest to you:

http://www.merkle-korff.com/formulas.asp#con

[Al_The_Man]

If you print this article out and keep for reference, it covers all the questions you have in detail.
http://www.elecdesign.com/Articles/A...7635/7635.html
Al.

[NC Cams]

Al

Great article, no AWESOME servo amp power supply design article BUT, the average "bolt together" DIY'er probably won't take advantage of it for two reasons:

1. They don't have the ability to do the math or to understand the design process - I understand the process but did tend to become a bit numb while going thru the techno-babble....

The math is pretty elementary if you take the time to dig up the input values.

or

2. They won't do the math because it is simply easier to ask somebody for a quick and dirty (albeit probably "adequate" SWAG reply) than to try to eliminate the "I dunno's" and then do the math in the proper fashion....

For example, in this case, the member didn't even supply enough data to determine if his power supply could provide the current needed - he did, however know that the Rutex's (or should that be Rutae????) didn't have the same voltage rating as the motors which does enable one to answer his basic questions.

I bet that even IF someone was kind enough to create a spreadsheet that one could "plug and chug with", the average DIY'er wouldn't be able to or wouldn't take the time to look up all the variables needed to properly execute that design process.

Yes, imaginatination may be more important than knowledge

but

it takes knowledge and development effort to convert an imaginative wild a$$'d idea into a viable, working product...

A bird with a bird brain can fly but it took some intelligence, imagination and engineering to fly to the moon....

[Al_The_Man]

I bet that even IF someone was kind enough to create a spreadsheet that one could "plug and chug with", the average DIY'er wouldn't be able to or wouldn't take the time to look up all the variables needed to properly execute that design process.

Yes, imaginatination may be more important than knowledge
it takes knowledge and development effort to convert an imaginative wild a$$'d idea into a viable, working product...

..

I am working on something like that now but work gets in the way, it would also include 'reverse engineering' motor specs.
Many obtain motors, for which the specs cannot be found, this way with limited equipment, one can obtain some usefull data.

I interpret Alberts quote to mean, Imagination tends to spawn knowledge, but not necessarily guarantee the other way around
Al.