Problem- Okk MCV 500

[vebers]

I am having a little problem and I was hoping someone could help. My spindle doesn't turn on after a tool change. It only does this every once and awhile, most of the time its great, but it does it enough that you better be standing right there when it changes tools or you a liable to punch a hole rather than drill it. any ideas would be welcome.

Vince

[Ben Olson]

I would say check the optical limit switches on your toolchanger, they're probably dirty

[chippy1]

If you have a tool eye or work probe it's possible that the spindle thinks you installed it. There is ususally a sensor that tells the PLC to disable the spindle from turning when the probe is installed. I've seen this happen before. You can usually look at your PLC manual in the spindle forward or reverse lines of PLC code and pick the particular bit out that is causing the problem. If any thing, check those lines of code out anyway so that you can trace back the issue.

Chippy

[vebers]

I just wanted to let everyone know what the problem was in case someone encountered the same problem. Well at least what the work around is. I noticed that the spindle wouldn't start if I used the same RPM after a tool change. So now I simply vary my rpm by one or two if they are the same and it kicks right on. Thanks for the reply's