1. Undulator Controls Breakout
4/13/2019
Undulator Controls Breakout
Josh Stein LCLS Undulator Controls CAM/TL
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2. UCM Software is 90% complete
4/13/2019
Good Things
UCM Software is 90% complete
With the talent at SLAC I’m confident that - if we had to - the software could be delivered right now
UCMI Translation interlock working
EIA design is complete
Many components delivered and waiting assembly
Blah blah blah - this isn’t important now
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3. Worrisome things - UCMI
4/13/2019
Worrisome things - UCMI
UCMI Design flaws
Motor wiring reversed including power and communications
Possible motor damage
Breaking news: 3 motor damaged
Requires board revision
Not that bad as we were going to change the board to accommodate changes recommended by FDR committee
These changes prevent us from finalizing design and going out for bid
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4. Worrisome things - UCMPS
UCMPS Design not complete
Initial “it’s an easy thing to do” design not inspiring confidence
Uses open-frame supplies for 42V and 24V encased within a 19” rack mount chassis
Fuses blowing with no-load
Strange “warm start” observed on 24V supply
UCMI was pulling too much current on startup - larger capacity supply to replace current one
4 week lead time for internal components
Budget has not been approved for this design effort or M&S
“Slipped through cracks” after UCM redesign. Current effort is unfunded
SLAC engineering assistance?

5. Worrisome things - VME Crates
4/13/2019
Worrisome things - VME Crates
VME Crate delivery schedule
Vendor claims first shipment of 12 units will go out mid February with two more deliveries planned over 2 months
Need device support and/or documentation for the SLAC supplied unit to allow us remote reboot/power cycling
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6. Worrisome things - Rack assemblies
Rack preparations
A/C power entry needs to be nailed down
3/4” penetration settled on via teleconference
New doors ordered
Work-flow for populating and testing completed racks has begun but has stalled due to difficulties in LTT
What about SLAC installed components in this rack?
Network transceiver
Console
Crating and shipping options needs to be nailed down
Probably will re-use a portion of the original shipping containers
Delivery options - preference vs. cost savings?
One single delivery?
2-3 medium-sized shipments?

7. Worrisome things - Translation stages
4/13/2019
Worrisome things - Translation stages
Motor limit connections need to be specified
Right-angle connector on downstream linear potentiometer oriented incorrectly
Claimed “skew limit” of 50 microns(!) - need for empirical testing with mechanical engineering assistance
UCM FDR review comments for limit switch and actuator design need addressing
Alignment/calibration procedure for linear potentiometers needed
How to find “home”?
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8. Worrisome things - Translation Stages
How to adjust limits?
Need tolerance numbers
Current set-screw method seems cumbersome
How to test skew interlock?
Calibrated shims
Potential flex in actuator?

9. Worrisome things - Translation Stages

10. Worrisome things - BFW
I have some notes on possibly adding another switch to the BFW actuator position for use by the MPS

11. Worrisome things - UCM Handoff
4/13/2019
Worrisome things - UCM Handoff
UCM Documentation
Calibration procedures
Linear slides
Cam movers
BFW
RTDs
Uncrate checkout
Installation checks
Run the system in the tunnel
Commissioning checks
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12. Worrisome things - BLM Vague milestones
4/13/2019
Worrisome things - BLM
Vague milestones
Budget for APS/CTLS effort not approved - currently working unfunded
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