Stepper motor driver/controller with oscillator
Stepper motor driver/controller with oscillator
(OP)
Hi, I'm looking for an industrial stepper motor controller that will allow bi-directional jogging at a set speed via a toggle switch (or similar). This will drive a 6A stepper motor, which drives a ball screw to move a vertical load.
So far we've come across the Anaheim Automation DPD72PG1, which appears to meet all of the requirements. Omega's ST10-S may work as well.
Are there any other options we should be checking out?
Thanks!
So far we've come across the Anaheim Automation DPD72PG1, which appears to meet all of the requirements. Omega's ST10-S may work as well.
Are there any other options we should be checking out?
Thanks!





RE: Stepper motor driver/controller with oscillator
(*) The motor output torque can drop dramatically when the rotor reaches a harmonic frequency and begins to oscillate. If you want to operate at this speed, you won't get the torque shown by the typical smooth torque-vs-speed graph in the vendor literature. If you just need to accelerate past the harmonic, it can be done, depending on your load profile. Some drives handle this ok, others not so well. 5-pole motors have less problems with this, at least in our experience with the first brand.
RE: Stepper motor driver/controller with oscillator
Keith Cress
kcress - http://www.flaminsystems.com
RE: Stepper motor driver/controller with oscillator
Oriental Motors looks like they may have a solution, but they seam overly capable(!), and indeed pricey.
Automation Direct has a few nice solutions but all require a separate oscillator/pulse generator, which they do not offer and are hard to find in an industrial package.
Perhaps a different type motor would be more appropriate for this application? We want high holding torque and a fast deceleration. Again, this will be manually jogged by a toggle switch to move a vertical load to a desired height via ball screw.
RE: Stepper motor driver/controller with oscillator
RE: Stepper motor driver/controller with oscillator
We do plan on incorporating a parking brake so holding torque is not critical.
RE: Stepper motor driver/controller with oscillator
... for which load brakes are not optional.
... and for which specialized VSDs with load brake coordination already exist, so you could use a simple 3 phase motor.
You might search for packaged hoist controls rather than designing and certifying your own.
Mike Halloran
Pembroke Pines, FL, USA
RE: Stepper motor driver/controller with oscillator
I ran that idea past our mechanical guy, but he indicates that a hoist system will likely not have the positional accuracy and precision we require.
Thanks for the idea though!