Subject: RE: NTT
Date: Fri, 2 Oct 1998 05:07:46 -0500
From: "Ito, Masayuki" <Masayuki.Ito@mts.com>
To: "Rood, Omar" <Omar.Rood@mts.com>
CC: "Thoen, Brad" <Brad.Thoen@mts.com>, "Larson, Rod" <Rod.Larson@mts.com>,
     "Otsuka, Yutaka" <Yutaka.Otsuka@mts.com>, "Saito, Yuji"
     <Yuji.Saito@mts.com>, "Imai, Hiroshi" <Hiroshi.Imai@mts.com>,
     "Katabami, Yoshihiro" <Yoshihiro.Katabami@mts.com>

Hello Omar,

        1. The system is very busy for the testing in next week, only 7
Oct. is free in next week for us.

        2. I think that modifying the parking table control does not
prevent the table dropping, because I have confirmed Yutaka about that
controller shutdown by his experience ( Rod may already knew) today;
        There are two types of controller shutdown.
        Case1;  469D has sync input error but HPS is not stop. This case
operator can control HPSes and parking frame by mouse without the table
dropping.
        Case2;  469D sync input error and HPS shutdown happen almost
same time. This case operator has no way to prevent the table dropping.

        3. We have received some new relief valve from Steve Pickford.
His message says that a warranty work needs to be done for the HPS
filter block.
        We have not informed the reason to replace these parts on the
HPS.
        I have no idea if this HPS repair is concerned with the NTT
controller shutdown.
        But, I have no reason to say that this HPS repair is zero
percent concerned for controller shutdown, because I do not know. We
have decided that we will work for HPS on 7 Oct. at NTT site.

        Regards

> -----Original Message-----
> From: Rood, Omar
> Sent: Thursday, October 01, 1998 11:28 PM
> To:   Larson, Rod; Thoen, Brad
> Cc:   Ito, Masayuki
> Subject:      NTT
>
> Rod and Brad,
> 1.  Ito's fax said the specimen broke at NTT because of the controller
> shutdown.  Yutaka has run the system without the LAN and the
> controller still shut down.
> 2.  I think we have no option but to replace the entire VME box.
> 3.  Rod, would you take Brad's VME system with you (as baggage) on a
> panic trip to NTT.  Have Yutaka meet you at the airport.  Replace the
> VME totally and hopefully make the problem go away.
> 4.  If that doesn't fix the problem then the fall back (suggested by
> Fuku) is to modify the parking table control so that it can be
> manually run up into park while the controller is hung up.  You'd need
> to put some kind of overide signal directly into the PLC up command
> line.  Then when Estop is hit to shut down the controller, at least
> the table doesn't fall so far as to damage the specimen.
> Regards- Omar
