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Maxpak

Maxpak

(OP)
I am trying to regulate the speed, and torque settings for a MaxPak III with a PLC.  These were origionally controlled by speed pots.

The problem lies with the fact that the drive uses 0-15 Vdc as its control voltage.  My signal conditioner is 0-10 Vdc.  Has anyone run into this before?
 

RE: Maxpak

(OP)
Thanks for the quick response, that looks like it would do the trick.  This would scale the output to the range I am looking for.  Would I have to use two of these units to achieve regulation from my 0-10 Vdc isolated signal conditioner.

The way I have it in my head is that I would need to take the 15v from the drive, bring it to 10 Vdc.  Then run it through my signal conditioner.  Then take the 0-10 vdc from the signal conditioner and rescale it to a 0-15v output back to the drive.

Am I missing something obvious?

RE: Maxpak

It doesn't look like you're missing anything, but I don't know the particulars of your signal conditioner or the control loop.

 

Good on ya,

Goober Dave

Haven't see the forum policies?  Do so now: Forum Policies
 

RE: Maxpak

Can't you just scale the input?

(For a 1725 type application) Seems like you should be able to set something like 15V = 2585RPM so at 10V you have 1725RPM.

Or am I missing the whole point?

Keith Cress
kcress - http://www.flaminsystems.com

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