**RESOLVED** mpu 11 board return

[jholland]

greetings AjaxScott

I need your authorization to return defective mpu 11 board.
Sorry to use forum but phone calls and email do not seem to work.
Thanks for your recent help with CNC 11 demo.

jackson holland

[achew]

Hi Jackson, How do you know the mpu11 is defective ? what problems were you having.It will help to let us all know.
Thanks,
Achew.

[Centroid_Tech]

jholland,

I just want to apologize for not being able to reach us. We were having some technical difficulties with our phone system and server last week. Your RMA number for the return of your MPU11 is 26821.

Thanks.

[jholland]

How do you know the mpu11 is defective ?

I bought one of the first boards. july 2009. Scott told me mpg and probing issues exist due to eprom or board trace issues.

thanks for the interest, Achew

jackson

[diycncscott]

The original MPU11's (shipped before Oct 2009) had the logic on the probe and mpg inputs inverted.

We changed those to make the logic consistent on all inputs -a closed input = logic "1"

As I explained to JHolland, the issue can be addressed with a PLC change - which I sent to JHolland
to get him going- but I'd rather change out the MPU11 so that all of the MPU11's in the field are the same

There were no "trace" problems

[jholland]

thanks for reply Scott
so does this mean I can ship you my July, 2009 mpu11 board and anticipate a corrected replacement?

jackson

[diycncscott]

Jackson,

Absolutely. I thought we had discussed this on the phone? (hence the RMA #)

[jholland]

Scott

yes, via phone you authorized board return. I wanted to verify that no documenting number was needed. I will ship board next week.

many thanks
jackson