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Old June 21st, 2018, 10:38 AM   #1
Huckleberry
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Standalone Pulse Input Servo Drive with fixed Advance/Retard speed

I am looking for a standalone (no PLC required) servo drive that I can set up to follow an incremental encoder at a fixed ratio AND will allow me to use drive inputs to advance/retard the servo at a fixed rate (that I program into the drive) WHILE geared to the incremental encoder.

In other words, I would like to use a 3 position spring-return-to-center switch to advance/retard a conveyor at a fixed rate WHILE geared to an auxiliary encoder. So no matter what speed the servo is running while following the encoder, it will "superimpose" a move at a fixed speed on top of the gearing

I have done this several times in the past, but every solution that I have found has required some sort of external source (PLC, HMI, etc.) in order to accomplish this.

Does anyone know of a servo drive that can do this without a PLC?

Thanks
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Old June 21st, 2018, 10:45 AM   #2
widelto
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Hope this will fulfill your requirements:
http://www.parkermotion.com/literatu...e_Sept2010.pdf
Their support is good or at least when I needed it they helped me.
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Old June 21st, 2018, 11:24 AM   #3
AutoMax
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Check out the Yaskawa Sigma7Siec. Single axis servo amp with integrated 61131 logic controller. That's as flexible as you're going to get for the money.
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Old June 21st, 2018, 11:27 AM   #4
osmanmom
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Google
https://www.applied-motion.com/products/servo-drives
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Old June 21st, 2018, 07:06 PM   #5
Highland Controls
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I second Automax's recommendation.
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Old June 21st, 2018, 08:40 PM   #6
Highland Controls
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Actually, you will need the Sigma7 MP2600iec to get the encoder input.
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Old June 22nd, 2018, 07:26 AM   #7
Gene Bond
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http://acim.nidec.com/en-us/drives/c...st/digitax-stz

The Control Techniques Digitax w/ EZ-Motion can do it pretty simply...
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Old June 22nd, 2018, 03:29 PM   #8
AutoMax
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Quote:
Originally Posted by Highland Controls View Post
Actually, you will need the Sigma7 MP2600iec to get the encoder input.
I stand corrected and apologize for the oversight.
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