I am controlling a Kinetix 300 drive with a Micrologix 1100 using msg instructions. So far all is well. I am trying to put in as many bug fixes as I can before I ship the machine out.
I am using a PLC output for my hard-wired drive enable (29-26). When I cycle the PLC power and that hard-wired enable opens and then closes again I see the drive try to enable for a spilt second and the un-enable again. That it okay because I do not have any other signals going t the drive so the motor does not turn. It does cause a problem if my STO switch is open at the time. The STO on the drive is wired through a door safety switch. If that switch happens to be open when the PL power is cycled and the drive tries to enable the drive will go into a fault E39. Not the end of the world. I can clear it with a fault reset.
What troubles me is what could be causing it. It must be something that I have set in the drive setup because it does it even if I open and close the hard-wired enable without the PLC.
Anyone have any ideas? Is there something in the drive that does a split second diagnostic to see of the drive can enable properly? I hate little glitches like this that do not hurt but are just a pain...
Thanks in advance.
I am using a PLC output for my hard-wired drive enable (29-26). When I cycle the PLC power and that hard-wired enable opens and then closes again I see the drive try to enable for a spilt second and the un-enable again. That it okay because I do not have any other signals going t the drive so the motor does not turn. It does cause a problem if my STO switch is open at the time. The STO on the drive is wired through a door safety switch. If that switch happens to be open when the PL power is cycled and the drive tries to enable the drive will go into a fault E39. Not the end of the world. I can clear it with a fault reset.
What troubles me is what could be causing it. It must be something that I have set in the drive setup because it does it even if I open and close the hard-wired enable without the PLC.
Anyone have any ideas? Is there something in the drive that does a split second diagnostic to see of the drive can enable properly? I hate little glitches like this that do not hurt but are just a pain...
Thanks in advance.