Subject: RE: B600 Install
Date: Thu, 9 Sep 1999 10:42:13 -0500
From: "Ovsak, Grant" <Grant.Ovsak@mts.com>
To: "Larson, Rod" <Rod.Larson@mts.com>, "Thoen, Brad" <Brad.Thoen@mts.com>
CC: "Zappia, Tim" <Tim.Zappia@mts.com>

Rod,

I don't think using the 497.exe or 497util.exe will get us all the way
there.  We have used it on the system for checkout but I'm not sure how
this will help us close the loop on a single actuator.  Since we tested
out individual actuators at MTS I bet that Brad has the software already
there (its probably just commented out).

Any comments Brad??

Grant

==============================
Grant Ovsak, Electrical Systems Engineer
Advanced Engineering Solutions Division
MTS Systems Corporation
1-612-937-4797
grant.ovsak@mts.com

-----Original Message-----
From: Rod Larson [mailto:rod.larson@mts.com]
Sent: Thursday, September 09, 1999 11:33 AM
To: Ovsak, Grant
Subject: RE: B600 Install

Grant,
Do we know if 497.exe or 497util.exe runs on this hardware configuration
to
set the AC conditioner we add; else, we need to get Brad to add
something
to the s/w to do this.
Rod

At 07:26 AM 9/9/99 -0500, you wrote:
>Regarding channels, conditioning and cables for the external LVDT's.
>
>We had 4 LVDT conditioner cards originally in the first 4 slots in
497#2
>for this reason.  But after some controversy, all spares including
these
>LVDT cards were taken out.
>
>These spare LVDT conditioner cards were sent along as loose spares so
>they should be on site for us to use.  All we need to do is slip them
>into the 497 and connect a cable up to the external LVDT.
>
>Although I think a spare cable was made up for the LVDT's, we can
either
>borrow one from the LVDT spool feedback (on another actuator) or bring
>along a spare cable from MTS (they are very common).
>
>Grant
>
>==============================
>Grant Ovsak, Electrical Systems Engineer
>Advanced Engineering Solutions Division
>MTS Systems Corporation
>1-612-937-4797
>grant.ovsak@mts.com
>
>
>-----Original Message-----
>From: Campbell, Craig L
>Sent: Wednesday, September 08, 1999 4:54 PM
>To: Larson, Rod; Thoen, Brad; Ovsak, Grant
>Cc: Zappia, Tim
>Subject: B600 Install
>
>
>This morning, Tim and I discussed the process we would like to use for
>installing the shims on the actuators .
>
>In order to do this without getting a crane, we need to have closed
loop
>stroke control on an individual actuator.  The process would involve
>installing the maintenance struts with the safety pins installed.
>Disconnect and cap the main pressure hose on the actuator to be
shimmed.
>Install an external LVDT on the actuator for stroke feedback.  Untorque
>the lower swivel/actuator mounting screws.  Attach the lower
maintenance
>strut hand winch to the actuator to support the bottom end.  Turn on
>Pilot Pressure ONLY to use the bearing leakage to power the piston rod.
>While unscrewing the swivel screws, retract the piston rod to open a
gap
>for shimming between the swivel and actuator.  If swivel replacement is
>required, continue retracting and unscrewing until the actuator is
>disconnected.  Reverse the process to tighten the screws.
>
>Brad, you mentioned it is possible to set up the controller to do
>independent control of any actuator.  The twist is that we want to used
>the externally mounted LVDT as the feedback to the controller.  We
>should be able to borrow an LVDT from the flow bench, can you make the
>controller changes required to use the LVDT?  Note that we would need
to
>map the external LVDT to any of the six actuators without changing any
>other cables.
>
>Grant, Please check to see if any AC conditioners are available for
>closing the loop with the LVDT.  If not, we will have to borrow one
>(plus a spare?).
>
>These controller changes need to be implemented by October 18 to allow
>us to meet the schedule for the installation.
>
>Please get back to Tim and I to let us know if this is going to work.
>
>Craig
>
