Need Help!- yaskawa 626 varispeed

[george9]

the control keeps blowing out the high voltage capacitors. runs for a couple of days then the caps explode. anyone seen this problem before the caps are 2200ufd 450v

[florinblaga]

I had this yeasr 3 tims problems with Yaskawa units. (2 problems on a VM25 miltronics machin) and one on Mazak laser machine st48 turbo, but id din't blow simply they was damage

[kcho]

Please more data. Did you check the input voltage?

Carlos

[mactec54]

george9

I think you have a input voltage problem, or something else in the drive that has a problem

We have new Yaskawa 626 drives if you need them

[george9]

the caps blow out randomly , not always the same one. we replaced all of them and since then 2 have exploded on seperate times. going to check input voltage when we return it to cust

[StoneCutting]

Hi I too am having problems with my 626 control. I am getting a F400 error and sometimes a F800 error. Any idea what might be causing this and what part would need replacing or do I have to buy a new drive. Any help appreciated

[mactec54]

StoneCutting

The F400 is Inverter over-voltage,Check the input voltage, this could be your problem, the F800 excess speed deviation this could be encoder wiring or the encoder

This PDF may help you a little to find your problems,

Seems to be a problem making an attachment