KMB1 w Teco 7200 drive problem...

[m_mcgranahan]

Hi
I finally got my KMB-1 up and running today and it was working fine but after I came back from lunch the spindle would not work!!! (I left things powered up but just turned off the spindle)

At first it was saying "ALARM DC. volt Low" I tried to clear the fault several times by power off and back on the 7200 but it didnt work. Next I tried hitting the reset button on the 7200 itself and that didn't seem to work either it looks like I might have accidentally got in and erased my program cause now it says "Freq Cmd. 000.00hz and the following lights are lit: Drv Seq, Ref, Run and the stop light is blinking!

I really really need to get this solved soon and get this part made! ANy ideas on whats going on and how to fix it?

Thanks

God bless...
Mark

[m_mcgranahan]

Ok so it is a Teco 7200-2007 rated for HP 7.5 and KVA 10.0 It runs 200-230v input. And for what its worth I was told this mill has the 6,000 rpm spindle. and the mill is a BX model (Doubt that matters but oh well.)

[m_mcgranahan]

Hi,

SO I figured out the the real problem was that the kmb1 controller was not keeping the CN25 relay that turns my teco 7200 on was dropping power but because the 7200 has so much capacitance it stays on and says "dc low volt alarm" Fixed that one, no more alarm :-)
So now When I hit the operate button, it sends the power to turn on the motor cooling fan and the 24v that powers my cn25 relay to turn on my 7200. My issue is the three green buttons on the controller don't seem to do anything anymore. Is there a fuse for those "run" buttons or something else I should check?

Thanks

God bless...
Mark