Yes but inexpensive until it comes to finding a plc capable of stepper control, although i must admit i have only used the larger more expensive units in the past - do you know of a cheaper PLC?
Its the last one, so once gone the price goes up.
if you want to set the speed from a 0-10V, you will need another plc, but you can set the speed in the program.
If you have not programmed plcs before you are best getting someone who has to commission the system.
I know an engineer who can do this, but he will charge you.
Also if you want to add a HMI so you can set the speed and move distance from a touch screen you can also do that with one of the HMI we sell.
Thanks Gary that looks a nice little unit but yes we will need to vary the speed somehow. The HMI is a good thought but is really not needed here, a simple pot will do the job, especially as the HMI really pushes the cost up.
Ok good luck, but if you are using a simple speed control. then you may have issues with it stalling if you set the speed too high and just enable it.
We also have a stepper driver that can run with a +/-10V or 0-10V and has limit inputs and a number of other features as well.
or if you want closed loop and +/-10V like a servo.
Thanks, i'll keep looking for the right solution. A simple speed control won't work - it needs to ramp up and down, this is the bit that makes it more complicated.
+1 for Cropwell's suggestion: An Arduino coupled with a stepper driver would walk all over this.
Yes i would agree but having seen the code, i have not got much inclination to start learning a new language now, it would need to be written and programmed for me and i feel that would push the cost up.
I can handle visual basic but it looks more like C++ or similar and makes no sense at all to me i'm afraid.
So pay lots more money for someone else to be bothered, it really is that simple!
Your VFD option on another forum will work great, with the required sensor and some really expensive control kit :-)
- NickIf you will not be swayed by logic or experience simply pick the idea you
like best, but ask yourself why you sought advice in the first place and,
for a simple life, perhaps consider not doing so in future
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