From elmere at stanford.edu Fri Jul 7 14:21:35 2006 From: elmere at stanford.edu (Elmer Enriquez) Date: Fri, 07 Jul 2006 14:21:35 -0700 Subject: STSetch update Message-ID: <44AED05F.8020508@stanford.edu> Installed the new load lock controller/ load arm power supply. The system powers up now but I was not able to reset the Load lock controller. Ordered a new Load lock controller. It should be here on Monday. As far as calling in field service; no one is available until the end of the month. From bmurray at snf.stanford.edu Sun Jul 23 00:18:55 2006 From: bmurray at snf.stanford.edu (Bill Murray) Date: Sun, 23 Jul 2006 00:18:55 -0700 (PDT) Subject: Test Message-ID: This is a test of the SNF mailing lists. Please ignore. Thanks, Bill From eenriquez at snf.stanford.edu Tue Jul 25 14:17:22 2006 From: eenriquez at snf.stanford.edu (Elmer Enriquez) Date: Tue, 25 Jul 2006 14:17:22 -0700 Subject: STS update/ history Message-ID: <44C68A62.6010305@snf.stanford.edu> Currently the STSetcher is DOWN because the loader arm drive motor does not stop rotating after the "at home" position sensor is actuated. We are trying to get a new loadlock controller but STS will not have one available until the first week of August.. History: The STSetcher went down over three weeks ago when the chamber door closed on the loader arm. After cleaning up the system we found that the loader arm drive motor does not stop rotating when it is at the "at home" position. The loader arm drive module consist of the LLC (load lock controller), a stepper motor and an optical sensor assembly. Here is a list of action items that we have completed so far: 1) We ordered and installed a rebuilt LLC unit. The rebuilt LLC unit did not work at all initially but after transferring a fuse and an EPROM from the old unit, it became operational. However, it functioned exactly like the old LLC unit. 2) We ordered a new LLC controller. The new unit is schedule to arrive in August. 3) We spoke to the STS field service manager about sending a field service engineer to Stanford.but his response was that he did not have anybody available until August. 4) Installed a new stepper motor. 5) Checked the optical sensor. The signals from the "at home" optical sensor circuit checked OK.