PTO and continuously run

[darknesspic]

Hi

      I'm using the EXF-RC15 and I think I will use PTO feature but there is one task in the process need to run continuously(without target) and stop by user keys(master PLC in CANbus).

       Please let's  me know or give me some advice, thank you.

 

[AlexUT]

Hi,

PTO is not intended to manage endless movement.

If you have to work without target, use PWM. In this case you have to program acceleration and deceleration in Ladder.

You do not need PTO for this.

B.R.

[darknesspic]

AlexUT, Thank you very much, I'm clear

[darknesspic]

I have more question, Can I mix PWM and PTO together? for example, in the normal case I use PTO if I want PWM I stop PTO and use PWM.

[Joe Tauser]

That is a good question.  I don't have an EXF-RC15 handy so I'll tell you to do what I'd do.  Try it out and see if it barfs.

Let us know what you find out.  You won't break the PLC.

Joe T.

[darknesspic]

Hi All

      Thank you for every body,

     I have  tried clear the current position(in PTO Read Status) but I couldn't. Any body know how to do it, please advise.

[HigHTech]

On 29/3/2017 at 1:23 AM, darknesspic said:

Hi All

      Thank you for every body,

     I have  tried clear the current position(in PTO Read Status) but I couldn't. Any body know how to do it, please advise.

You can try to set a very big target just like the Jog in the EXF-RC15 example. The only way I know to clear the current position is performing a Home command.