Page Index

Removing the trapped keys to access the Enclosure Catwalks during observing will cause the GIS to command the enclosure into a safe state. This is by design. It prevents inadvertent access to various hazardous locations while the enclosure is in motion. T

Site Ignition Application User Credential GIS, PanelView Add as user Add to Trapped key user screen GIS TIM Engineering screen VPN remote connection Web cams, Weather cams Google shared folders Dropbox shared folders Web GIT, Bit bucket Tech Support Rockw

Adjusting the offset should only be attempted by trained and authorized personnel. Connecting to a VM From one of the HLS Workstations or from a Windows computer using Remote Desktop Connection that has an authorized connection into the Control network: C

The Rear Door uses two induction motors operating in servo mode. They are commanded to run the same speed, and they usually do. But the drives are not synchronized. Sometimes the motor positions become too far apart and the door binds. The servos do not k

EE Parts ordering https://docs.google.com/spreadsheets/d/1PGkubHRLMMiigoWLu1hw07wdXS-a7LF-FmoasL3u1T8/edit#gid=2075608846 Technical Operations Wiki Main Page https://nso.atlassian.net/l/cp/Mc5j8jKz Additional pages in this section:

Air Knife Folder https://www.dropbox.com/sh/9fjjxtlypqv5qiq/AAAcl51QsKoSs91FXuwHOxKua?dl=0

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Introduction Allen-Bradley 843ES CIP Safety over EtherNet/IP Absolute Encoder 843ES-Product-Spotlight-Image.jpg The 843ES safety encoders from Allen-Bradley are designed to replace the Kuebler safety encoders on the telescope mount. The main reason is tha

EMCS Altitude elevation view.pngEMCS Altitude controls view.png Enclosure Altitude Plan https://www.dropbox.com/s/x9qjv89jm6vya09/Altitude%20System%20Plan.pdf?dl=0 Altitude WCS position encoder manual https://www.dropbox.com/scl/fi/btxh746t0ftj6znrptte3/o

Issue Enclosure Shutter barcode reader 1 or 2 indicate a communication fault in the Alarm log or on the Altitude Status page. Background Altitude position is sensed by 2 barcode readers / position encoders. 56WCS1 57WCS2 Wiring details are shown on Enclos

Indication Active State image-20231128-230723.png image-20231128-230822.png Warning State Safe State image-20231128-230803.png Fault State image-20231018-170313.png Condition The Altitude Safety Encoders are used in the Ephemeris Safety Function, these in

Aperture Cover https://www.dropbox.com/sh/r7yzwvzphmaghgr/AAA2ZAVR--ySPOnLoJ_m63bda?dl=0 Enclosure Aperture Cover PLC S120 Drive interface https://www.dropbox.com/s/je9fihkdnn7o1s2/Aperture%20Cover%20PLC%20S120%20interface.pdf?dl=0

Pages in this section This fault occurs when the GIS commands the Aperture Cover to close and the Aperture Cover fails to close within 135 seconds (2:15). When this occurs this fault is latched. To clear this fault the Aperture Cover must be closed. This

Problem At end of observation, while putting equipment in stowed positions … Aperture was closed while Shutter was at 90°. Aperture closed properly and seal inflated. Shutter was brought down to park at 7°. Change in gravity vector caused the Aperture Cov

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Computer Applications Folder https://www.dropbox.com/sh/9fjjxtlypqv5qiq/AAAcl51QsKoSs91FXuwHOxKua?dl=0 Rockwell Automation RSLogix 5000 / Studio 5000 FactoryTalk Activations GIC, EMCS_LIC (aka ENC_LIC), Telescope LIC Software Application Version Download

Automatic Transfer Switch Service Manual https://www.dropbox.com/s/ews8gpsydrfd0f0/OTPC_1600_SERVICE_0962-0516.pdf?dl=0 Automatic Transfer Switch Test and Inspection https://www.dropbox.com/sh/7rcdqae1w5x65qf/AAD_6EFaV75-yPvMs0gTvcHaa?dl=0

Pages in this folder Documents Enclosure Azimuth plan https://www.dropbox.com/preview/Maintenance%20Document%20Database%20(MDD)/enclosure/Maintenance%20Docs/Azimuth/Azimuth%20Plan.pdf?role=work Enclosure azimuth ECS position encoder manual https://www.dro

Issue When passing the coherence position, Azimuth coherence sensors did not properly change state. Resulted in CW & CCW coherence faults and an overall coherence fault. Background Same problem as always: Sensors are safety rated with 2 sensor outputs fro

Azimuth grip operator is a handheld device that can be connected to manually control Azimuth position uz5_wO27Dw42rKU8KLLKyjvP2AwT2c0jzqQzZiN20W2FKxkeWXaPITTP7ZtzDM_xw5BBnan4LdTzCovOIzxZBD_MqJW11gU9rdzy2S1EBZZ40Zd5f-IIP0FsVroS5AA19MPrbEm40az9HSv-9mSxLV8m6

Indication Active State image-20231128-225840.png image-20231128-225751.png Warning State Safe State image-20231128-225640.png Fault State image-20231018-170313.png Condition The Azimuth Safety Encoders are used in the Ephemeris Safety Function, these ind

This page is intended to give guidelines for the high-level process of how the code on the B&R controllers evolves over time. Procedure Plan change with gatekeeper. Attempt to upload running code from PLC. This requires that the source code has been downl

B&R PLC Source Code, Editor and Documents https://www.dropbox.com/sh/hquzsvwy24vf44w/AAAweRvFn8yCR1uYsXCz2srRa?dl=0

Several systems are using BACnet in the FMS. These include PLCs, Ignition HMI, HVAC, and in some cases a combination. Both BACnet/IP and BACnet RSTP are present. Systems Summary PLC BACnet/IP communication is via a gateway and mainly facilitates control o

Basic Building Plan Drawing https://www.dropbox.com/s/agl2jkmjipdnu07/Basic%20Plan%20Sets.pdf?dl=0

Force and Mass In linear mechanics, the relationship between force and acceleration is given by Newton's Second Law of Motion: Force = Mass * Acceleration Under constant velocity, there is no acceleration and the sum of the forces is zero. In rotational d

Admin Time keeping Hippo Requisitions Eplan Work ArcFlash safety High voltage safety Fall protection Lock Out Tag Out (LOTO) Clean Room (requires Vault access) http://hades.int.maui.nso.edu/solidworkspdm/DKIST%20File%20Vault/SysDocs/IT%26C/IT%26C%20Proced

Beckhoff-related documentation and procedures: Shutting down Beckhoff PLCs (Mount/Coudé) for maintenance Procedure to download and activate modified code on Beckhoff PLC MMCS, CMCS & M1 Windows VMs Adjusting offset of MMCS/CMCS time Beckhoff PTP (IEEE 158

This page is intended to give guidelines for the high-level process of how the code on the Beckhoff controllers evolves over time. The details of the mechanics of modifying code for the Beckhoff PLCs is detailed here: Procedure to download and activate mo

The EL6688 PTP cards used in the MMCS and CMCS have proven to be sensitive and problematic. These instructions are intended to help quickly diagnose and resolve issues with timing. Symptoms Both the MMCS and CMCS continuously receive trajectory commands f

This was published in the trade journal PRODUCTION ENGINEERING, written by Paul Pendragon. BEWARE THE WRATH OF ABIBARSHIM! Recently excavated clay tablets shed new light on the most famous engineering failure in antiquity. Although some of the words are c

Enclosure Cabinet Locations ( DKIST-DWE-Enclosure-WORKING DOCS) https://www.dropbox.com/s/mh2acbxtt7khegh/15812-DWG-E-5.7-019.pdf?dl=0

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To ensure high quality software changes, it is essential that we incorporate peer reviews into the process. The preferred method is to prepare the changes and present them as a “diff” in PDF format, using appropriate tools to clearly show the affected par

Together with developing a code change it is essential that we have a test plan that covers the changes made and verifies that any adjacent critical functionality continues to work as expected. It may be helpful to develop the test plan first before makin

Codes & Standards Folder https://www.dropbox.com/sh/dyu45x2jqow2r4q/AABRZTTPP8LCCVUkbbyvpTVra?dl=0 NEC 70E https://www.dropbox.com/s/34bzduevyg3xzbd/NEC70-11SB-PDF.pdf?dl=0 NFPA 79 https://www.dropbox.com/s/twh17eezvj1bew1/NFPA%2079-15.pdf?dl=0

Codesys is a development environment for PLC’s, which will run a software PLC on a Raspberry Pi, and of interest to us, supports PROFIBUS, CANopen, EtherCAT, PROFINET and EtherNet/IP, BACnet and KNX out of the box. It’s been useful on our development effo

Mount motor data Motor data for Mount and Coude are always collected. Four parameters are logged: Torque % Torque Nm (Newton-meters) Speed Position Data can be viewed in real time or from a historical log. Historical data can be downloaded to the HMI clie

This change will give you a direct connection from the office / WiFi to the 10.4.x.x network (GIS & EMCS). Requirements This method only works for users who are identified by windows Active Directory or VPN authentication. If you do not have this access,

Note: in Siemens-speak: PG = PC = your programming computer. Upload = from drive to PC Download = PC to Drive For more information about using Starter: Siemens S120 Getting Started with Starter https://cache.industry.siemens.com/dl/files/084/103436084/att

The Coude is part of the overall Telescope Mount Assembly (WBS 1.0) and consists of two WBS packages, the Coude Rotator Structure (WBS 1.1.3) and the Coude Rotator Drive System (WBS 1.1.4). The original fabrication of the Telescope Mount Assembly was done

Problem After restoring power to the Coudé following some work, the Coudé status showed "locked" in red on the MCS. Azimuth position was flashing yellow. GIS was reset and the Coudé interlock screen was clear. Corrective Action Using Remote Desktop, log i

image-20230502-172144.png This display is divided into two main sections, the GIC related indicators and the local Coudé indicators. GIC indicators The GIC indicators include the ‘big three’ interlocks that come from the GIC: E-Stop, Seismic Alarm, and Fi

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The Coudé Diagnostic displays are a series of displays that show the status of safety instructions that form the basis of the safety functions for the Coudé LIC. These include DCS, DCM, and CROUT instructions. The background of each is normally gray in co

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The Coudé azimuth hard stops are designed to prevent the Coudé rotator from exceeded it’s designed travel range. Because the Coudé rotator can travel more that 360° the hard stops must be retracted to allow travel. There are two hard stops that are spring

Coudé Enable The primary key Aa, is used to enable Coudé Azimuth Rotation. There are two Aa keys located in the control room. Removing either or both of the Aa keys will disable Coudé Azimuth Rotation. Ground Floor To access the Ground Floor inner pier, y

Level 1 S&O Receiving Area Crane Level 3 Coude Prep Lab Crane Folder https://www.dropbox.com/sh/620meuri8uq7143/AADw6wj7-IhcH6gWU0Kc69Vha?dl=0 Coude Lab Monorail Folder https://www.dropbox.com/sh/b86p9biyj2klqg7/AAAfmvLQFAHcWCj3y3l-jFwja?dl=0 Level 7 Brid

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Prerequisites Rockwell RSLogix 5000 V20.xx (preferably 20.05) must be installed on the computer used to backup. Using GIT GIT https://www.dropbox.com/sh/iryjkmsi5n2p97j/AACF9TAhPqP317ffmnK5kxVEa?dl=0 (any version) must be installed on the computer used to

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image-20230413-215044.png This Diagnostics display shows a summation of the various safety instruction diagnostic information from each individual LIC. The Diagnostic display also has a GOTO button for network switch diagnostics. The background color of e

1756-L6xS firmware version v. 17 - 20 battery back-up of user application CompactFlash for backup non-volatile memory 1756-L7xS vs. 1756-L6xS firmware version v. 20+ non-volatile memory is SD card instead of CompactFlash Replaceable Energy Storage module

Vault Location for the master revision controlled drawings DKIST File Vault\TechOps\Electrical-Electronics-PLC\As-Built Drawings http://hades.int.maui.nso.edu/solidworkspdm/DKIST%20File%20Vault/TechOps/Electrical-Electronics-PLC/As-Built%20Drawings Work P

Telescope Mount Assembly Azimuth Control Azimuth position Altitude Control Altitude Position Air Knife Control Top End Optical Assembly (TEOA) M1 Cover X Box GOS M1 Mirror Cart Cillers Heat Stop Control Coude Azimuth Instruments Facilities Enclosure (EMCS

To install SolidWorks Vault: SOLIDWORKS 20 23 SP 3 .0 PDM Instructions https://www.dropbox.com/scl/fi/eaxci24d5sj5g7kpz3pqy/Upgrade-PDM-Instructions.pdf?rlkey=afye4p3y48tse8t5t934gjq7c&dl=0 To create a new vault view in Windows Explorer: install Solidwork

Overview Trapped Key Interlocks ensure that a predetermined sequence of events takes place to reduce hazards before personnel are exposed to them. Caution Do not attempt to bypass the proper sequence of operations. This How-to page serves as a quick guide

The new location for as-built and redline drawings is DKIST Electrical _ Electronic _ PLC Drawing Index Mount/Coudé https://www.dropbox.com/scl/fi/axeoocvcnsprcsu75e65k/TMA-Schematics-November-2023.pdf?rlkey=u4kqcjpu7qsnw34vf5mbhidxh&dl=01 TMA Schematics

Information only It is possible that the calculated control parameters do not bring about the desired characteristics. Possible reasons: Slack Static friction Position dependent friction and load Position rigidity and damping on drive wheels Mechanically

These are miscellaneous dropbox folders not yet assigned to an appropriate area. Maintenance Documents Database https://www.dropbox.com/home/Maintenance%20Document%20Database%20(MDD) PLC Source Code https://www.dropbox.com/sh/cysdn1s3utzbu2x/AAA7foFluN3qB

Current S & O Drawings & Specs https://www.dropbox.com/sh/587e54p5dzh4yok/AADIDXB4clBZb9R-b1VfkzJ5a?dl=0 Lunch & Learns https://www.dropbox.com/sh/587e54p5dzh4yok/AADIDXB4clBZb9R-b1VfkzJ5a?dl=0 Telescope Mount Assembly (TMA) Telescope Mount Assembly (Moun

Issue ECS sent ‘Tracking’ command. EMCS remained in ’PTP' mode. Background At start of operation ECS sent several commands, including a command for PTP Mode. Then ECS sent a command for Tracking. ECS command includes an event ID and a parameter (command o

Hierarchy It’s easier to find things if they are grouped together. Instead of placing everything at the root level have documents built into trees. Organization It is best to follow the original project construction work breakdown structure https://nso.at

Welcome to your new Electrical / Electronic knowledge base space This knowledge base is a shared resource that we can all use and add to. This wiki will help us quickly create lots of pages without worrying about organization and structure. To start: Navi

Electrical Panel Schedules Revision-controlled Vault Location https://hades.int.maui.nso.edu/solidworkspdm/DKIST%20File%20Vault/TechOps/Electrical-Electronics-PLC/As-Built%20Drawings/S%26O%20Drawings%20of%20Record/Electrical%20Panel%20Schedules Copy of cu

Additional pages in this section: Documentation Electrical Group Documents Folder https://www.dropbox.com/sh/vs43qmb647urh3q/AACcq8-bvFRr5n1vyVjJRkBma?dl=0 S&O and UB Facility Electrical Record Drawings working folder - Jackson's CAD Services https://www.

Subnet IP Use Shop port Assignment 10.2.9.x EMCS IO Subnet B8 10.3.1.x Control B7 10.0.4.x TEOA B6 10.0.6.x GISS B4 10.0.1.x ECS B5

EMCS Ignition HMI is available for use any desktop or laptop PC. List of features: Monitor status, reset and bypass access doors. Monitor trapped keys, e-stops, cranes, Monitor equipment status and safety permissives. Monitor and acknowledge alarms, curr

Intent Machine control programs are very complicated, expensive and fragile. Prototype (single instance) and new control systems are quite often continuously improved and upgraded. Multiple people will modify these PLC programs. Multiple changes might be

Problem ECS sent a 'PTP command to EMCSEMCS Azimuth started motion as soon as operator sent 'ECS Active'. Discovered that EMCS held an ECS position reference different from actual position. and proceeded to move to position reference. This, or a similar p

Additional pages in this section Location ProFace Touchscreen HMI is located on the Telescope level, near the rear door. Application editor Editor software for Enclosure HMI is GP-ProEX_V408.000_PFA.exe in this folder https://www.dropbox.com/sh/z1rvp4ym3a

Diesel Generator & Alternator Set Generator Operator Manual https://www.dropbox.com/s/0m0k7ggjrq4lb25/DFEK%20Operator%20Manual.pdf?dl=0 Alternator Service Manual https://www.dropbox.com/s/qky749voz321r4m/Alternator%20Service%20Manual.pdf?dl=0 Generator Se

Background In the 3rd edition of ISO 13850, published in 2015, a new provision requiring emergency stop systems to meet at least PLc was added, guiding the designer to implement at least that Performance Level. IEC 61508-4: 3.8.5 proof test periodic test

Pages in this Folder Equipment Layouts Enclosure Cabinet Locations ( DKIST-DWE-Enclosure-WORKING DOCS) https://www.dropbox.com/s/mh2acbxtt7khegh/15812-DWG-E-5.7-019.pdf?dl=0 Documents & Manuals Enclosure Functional Description https://www.dropbox.com/s/u8

image-20230502-192955.png The Enclosure Display shows the status of the Enclosure Altitude Axis, also referred to as the Shutter. The display includes on the left column the status of the permissive signals coming from the GIC: E-Stop, Seismic Alarm, Fire

See Jira ticket for latest details: After installing the WCS config software, it’s worthwhile to read the readme file in the help section of the software. The basic process is as follows. When updating the WCS-EIG10, you’ll need to connect via a RS232 bre

Recurring problem with GIS Aperture Cover Interlock: To protect M1, under one of several conditions, GIS sends a ‘Close AP Cover’ to ENC _LIC / EMCS PLC When GIC commands Aperture Cover to close it cannot be opened until GIS Reset. When Aperture cover rea

Draft of a rewrite for Enclosure Azimuth control after the reconfiguration just completed.. Describes current PLC program organization & structure Enclosure Azimuth motion is controlled by the EMCS control system. Control is recently moved from EMCS PLC t

image-20230412-225301.png The Enclosure Display shows the status of the Enclosure Altitude Axis, also referred to as the Shutter. The display includes on the left column the status of the permissive signals coming from the GIC: E-Stop, Seismic Alarm, Fire

Original PCV / WCS Encoders: Pepperl+Fuchs PCV80-F200-R4-V15-LS221 Two encoders, spaced at ~90 deg apart on the lower Service Ring level. WCS Encoder.jpeg Manual: Issues with the current encoder - track not perfectly circular, enclosure shifts with therma

From 15812-TRE-070-3 ATST Enclosure Design Report: AZIMUTH END STOP The Azimuth End Stop provides a shock absorbing hard limit on both ends of the travel (+200º/-200º). As the overall travel is higher than one complete turn, the mechanism shall be equippe

ECS & user control Sends commands Monitors status Routines ECS trajectory ECS drive commands Control Local Comm_ECS Az_Status, general, motors, position Mode control Sets operating mode based on inputs from ECS and Local Sequence control Takes signals fro

ECS or Local HMI send mode, position reference, velocity reference. All motion control logic is located in Routine Control_position. Sequence of operation Wait for position command Wait for mode Routine Az_Mode sets mode based on ECS or Local commands. Co

The original schematics were done using ePlan. They are currently maintained using ePlan. Master Enclosure Electronic Schematics - Revision Controlled Vault Location https://hades.int.maui.nso.edu/solidworkspdm/DKIST%20File%20Vault/TechOps/Electrical-Elec

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Enclosure Motion Control LIC The Enclosure Motion Control LIC is responsible for interlocks, limits, and emergency stop functions for the Enclosure Azimuth, Shutters, Cable Wraps, Entrance Aperture; Bridge Crane, Jib Cranes, Rear Access Doors, and TEOA Pl

Upper Enclosure Upper Enclosure Trapped Key Map image-20220809-180205.png Lower Enclosure Lower Enclosure Trapped Key Map image-20220809-180130.png

The Engineering – Doors display allows resetting or sensors and unlock overrides to the hazardous access control doors. This display is password protected. WARNING Overriding a door lock is inherently hazardous as it bypasses key safety design elements. I

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Why is the transducer high? because It's 4-20. What did the VFD say to the soft-start? I do it until it Hertz. Wastewater jokes aren't my favorite, but they're a solid #2 Two antennas got married - the wedding was lousy, but the reception was outstanding.

I am an engineer I am, and ever will be, a white-socks, pocket-protector, nerdy engineer, born under the second law of thermodynamics, steeped in the steam tables, in love with free-body diagrams, transformed by Laplace, and propelled by compressible flow

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‘EPLAN’ generally refers to EPLAN Electric P8 https://www.eplanusa.com/solutions/eplan-solutions/eplan-electric-p8/, a tool to design and draw electrical diagrams. It can also create BOMs and reports automatically from the schematics. DKIST currently uses

Hardhat Safety glasses Earplugs Hi vis vest / jacket Cold Weather gear Masks Computer Radio Keys Tools

Rockwell serial numbers The following serial numbers are registered with our Tech Connect contract: Serial No Ref. Product ID Ref. Product Description Catalog Number 1835052930 PN-C40515 RSLogix Emulate 5000 9310-WED200ENE 1835075778 PN-C40515 RSLogix Em

Fire Alarm Folder in Maintenance Document Database (MDD) https://www.dropbox.com/sh/b0ivtsb97ql3dex/AADIzMwPLoFu3EPfX9ZKyAbWa?dl=0 Fire Alarm system in E-Tech Facility Documentation https://www.dropbox.com/sh/xle6k5bzi1nsobv/AACb4gqQmz6L4Ipclukd8cdWa?dl=0

Table of Contents Overview: This page collects information about the Facility Management System. HMI Notes: Contact Charlie White for HMI information, changes, etc. Bug Reporting: If you would like to report an HMI bug or would like to request a new featu

Additional pages in this folder Accounts and access Access to the Google Drive shared folders and files Access to the Drop shared folders and files Dropbox shared folders Access to GIS TIM Engineering screen Access to Vault Ignition HMI account from Charl

Overview Functional safety is, simply put, “Protecting a user from technology”. It also protects technology from users. More technically however, the definition of Functional Safety is, “Systems that lead to the freedom from unacceptable risk of injury or

Guard Locking switches if tripped require that both the fault be cleared AND a functional test of the Guard Lock. Guard Lock Switch can become faulted if someone attempts to force open a locked door or uses the emergency escape release mechanism. Ensure d

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image-20230501-214519.png The GIC Diagnostics display shows information about the GIC controller. Much is similar to the GIC Status Display. Including Is Present?, Mode, Safety Lock, Safety Status, Safety Signature, and I/O status. There is also a button

image-20230501-214425.png This page shows the overall status of the global emergency stop as well as the collective emergency stop signals from each LIC. You can navigate to each of the LICs by pressing the associated button. The display also shows the st

Communications between the GIC and the Telescope LIC consist a single tag, of user defined type UDT_SafetyArray, which is an array of 128 BOOL values for various logic values (see below) along with safety connection status information. GIC to Telescope LI

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Overview The Global Interlock System (GIS) is a safety-related control system that provides a redundant, stand-alone safety mechanism for personnel and equipment. It consists of Allen-Bradley GuardLogix controllers and Guard I/O modules interconnected usi

There are a number of alarms in the GIS that will 'pop-up' a banner on the HMI indicating a major fault or interlock. These are generally of an urgent nature. These are generally also immediately interlock one or more observatory systems or subsystems. Tr

This document was originally released as SPEC-0112 Global Interlock System Architecture. Preface The Global Interlock System (GIS) Design represents a challenge in that its design is in parallel with (and in some cases before) the designs of the systems

Global Interlock System Configuration Item Data List Document Title Rev. Date SPEC-0046 GIS Specification A 25-Oct-12 SPEC-0112 GIS Architecture C 26-Jan-15 SPEC-0141 GIS Operational Concept Definition A 25-Oct-12 SPEC-0140 GIS Functional Description C 26

The GIS current status is contained in three Google Documents. One lists the current safety signatures, the other notes any changes or disabled safety functions, and finally the third is release notes regarding changes to the HMI. GIS Safety Signatures ht

The original design documentation for the GIS system has been imported under this section. Note that there may be a lot of outdated information. This is mostly for historical reference. @self GIS CIDL (Configuration Item Data List) Document Title Rev. Dat

The GIS has various parts of the system documented as part of individual subsystems. DKIST Drawings DKIST drawings cover: GIC (Global Interlock Controller) Facilities LIC Instrument LIC OSS (Optical Subsystem) LIC IDOM Drawings The IDOM drawings cover the

GIS REP.png The GIS switches are connected in a redundant loop via fibers. The path is as follows: GIC SWITCH S4A.GIC.1 / S4A.R1.U18.S2F.1 S4A.ACWFT.S3R.1 / E1A.ACWFT.S2R.4 E1A.ACWFT.S2F.7 / EIA.301.SAF.1 ENCLOSURE SWITCH 1 EIA.301.SAF.2 / E1A.301.S2F.9 E

This section is based on TN-0157 GIS Programming. This Tech Note contain configuration details and programming styles that were not an absolute requirement or specification. It was to layout guidelines for GIS programming to promote consistency. note The

note This information based on TN-0157 GIS GuardLogix Programming. This information based on TN-0157 GIS GuardLogix Programming. Table of Contents Preface It is desirable to layout general guidelines for programming of various components of the Global Int

Global Interlock System Operator Interface Overview The Telescope Interlock Manager (TIM) is the HMI display the provides current information about the Global Interlock System via a touch screen display. The primary display is located at the Utility Level

The GIS safety network (10.4.0.0/16) has 7 occupied subnets. Below is a list of IP addresses assigned to the various components of the GIS safety network. More detailed information about the components (such as version and serial number) can be found in a

Allen-Bradley ControlLogix/GuardLogix User Manual GuardLogix Controller Systems Safety Reference Manual https://literature.rockwellautomation.com/idc/groups/literature/documents/rm/1756-rm093_-en-p.pdf ControlLogix 5580 and GuardLogix 5580 Controllers Use

This document was originally released as SPEC-0141 GIS Operational Concepts Definition. Preface This document details various engineering choices that were made during the early design process of developing the Global Interlock System. These choices repre

This information was originally published as MAN-0001, GIS Operations and Maintenance Manual. DANGER Failure to follow the procedures detailed in this manual can result in death or serious injury. Only authorized persons may perform the procedures detail

Functional Safety The Global Interlock System (GIS) is designed as a stand-alone functional safety system for the observatory to protect personnel and equipment from hazards. Functional safety refers to the concept of ensuring that a system, process, or p

List of parts that were procured for build the GIS components in-house. https://docs.google.com/spreadsheets/d/1Z37kJqO0_zM-hQXXRgVJRDU29JC018P9chVZrrL42es/edit?usp=sharing https://docs.google.com/spreadsheets/d/1Z37kJqO0_zM-hQXXRgVJRDU29JC018P9chVZrrL42e

Various photographs of components of the GIS.

This flowchart describes the process for updating the GIS PLC code Currently we are following this procedure for the EMCS plc as well, until we move more of the azimuth control into the LIC.

Here is a collection of procedures developed for the Global Interlock System. @self

Clock Identity Class Accuracy Priority 1 Master Override Priority 2 Tiebreaker GMC1 000CECFFFE0A2BA1 6 33 125 50 GMC2 000CECFFFE0A2240 6 33 126 100 S4A-C9300-01 703509FFFE7F2200 GIC_switch E49069FFFE0E9580 248 254 128 112 GIC_R00_S02_ENET 001D9CFFFEBFFCF7

While the two terms sound similar and do perform similar functions they are distinct. GIS Reset is used to clear an interlock has been tripped and the safety function completed successfully. GIS Fault Reset is required when an interlock has been tripped a

System Ferret is a tool that used to be provided by Allen-Bradley for scanning the I/O configuration using RSLinx. It returns useful information such as part number, serial number, firmware version, IP address, etc. about the system. GIS Ferret Reports no

The various LIC in the GIS are synchronized using CIP Sync an implementation of IEEE-1588 Precision Time Protocol (PTP). The Grandmaster Clock for the facility is a Spectracom time server in the Computer Room. This distributes the time to the clock card (

This document was originally published as ICD 4.2.1 – 4.5 Global Interlock System Status to Global Interlock System, Rev. B. Description This ICD specifies the interface between the Global Interlock System Status (GISS) and the Global Interlock System (GI

What is Git? Git is a free and open source distributed version control system designed to handle everything from small to very large projects with speed and efficiency. Atlassian Git Tutorial https://www.atlassian.com/git/tutorials/what-is-git Coursea Ver

image-20230501-214305.png The GIC display shows the status of the GuardLogix controllers as well as the status of the main permissive signals that are controller by the GIS. The six controllers that make up the GIS are shown in columns. Two GOTO buttons,

Master Global Interlock System - Revision Controlled Vault Location https://hades.int.maui.nso.edu/solidworkspdm/DKIST%20File%20Vault/TechOps/Electrical-Electronics-PLC/As-Built%20Drawings/GIS?view=preview&file=GIS%20EPLAN%20Master%2020231127.pdf Copy of

The original hazardous zones plan was documented in SPEC-0133, Hazardous Zones Access. This document is out of date. Preface The DKIST team performed Preliminary Hazard Analysis (PHA) per MIL-STD 882 on each of the subsystems and included all phases of th

Below are groups of colors used for safety signs as well as HMI displays. Colors[edit https://en.wikipedia.org/w/index.php?title=ISO_3864&action=edit&section=3] These are the colors specified in ISO Standard 3864-4 in RAL color standard https://en.wikiped

There are currently two types of safety encoders installed on the telescope. There is a different procedure for adjusting the older Kuebler safety encoders https://nso.atlassian.net/wiki/spaces/EE/pages/1928593425/K+bler+Safety+Encoder+Fine+Position+Offse

A reward of four bits is offered for data leading to the lightning arrest of this desperate criminal: Hop-a-long Capacity. This unrectified criminal dissipated (discharged himself) from a Western prism where he was held in soliton confinement in a primary

An induction motor or asynchronous motor is an AC electric motor https://en.wikipedia.org/wiki/AC_motor in which the electric current https://en.wikipedia.org/wiki/Electric_current in the rotor https://en.wikipedia.org/wiki/Rotor_(electric) needed to prod

DisplaysInfo_Instruments.jpeg

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This is a the root page for all DKIST facility instruments. Visible Broadband Imager (VBI) The Visible Broadband imager is an imaging filtergraph that is operated between 393.4 nm and 656.3. It is located in the Coudé lab. The VBI is separated into two di

@self

IT Infrastructure (WBS 6.6.2) includes the computer network, computers, telephone and videoconferencing.

Additional pages in this section download (1).png Kubler (or Kuebler or Kübler) refer to the manufacturer of the first generation safety encoders used in the Telescope Mount Assembly (including Coudé rotator), Kübler Group Fritz Kübler GmbH. Programming T

Overspeed Reset The mount and Coudé main axis have their speed monitored by the Kuebler Safety Encoders. While it should not be possible to command speeds greater than allowable limits it is possible that the Overspeed Monitoring may be tripped. GIS Coudé

Failure to properly home the Kübler encoder may result in severe damage to telescope systems. During this procedure, operation of the Kübler Safety Encoder will be stopped. This will result in the hard stops associated with that axis deploying. Ensure tha

Where art thou? The Liebert racks cost enough that they are trackable inventory assets. So, about once a year, we have to locate all of them. Generally this is easy as they are rather large. Unfortunately, they have migrated across the globe during constr

The Light Path display provides information on one of the most complicated safety-related control functions of the GIS. This function blocks the light path in a myriad of situations where the concentrated light beam poses a hazard. These hazards include d

The concentrated focused beam of sunlight produced by a 4.0m mirror is around 16.9 kW. Enough energy to boil a liter of water in about 3 seconds. The concentrated focused beam can and has caused damage to telescope components at or near the prime focus an

DKIST has a Boltek EFM-100 lighting detector installed on the Utility Building at the summit. It currently is monitored by a server in the upper floor of the utility building at 10.9.1.20; contact Wade or Colleen for server setup and login details. There

Lightning Protection Handbook (ERITECH) https://www.dropbox.com/preview/DKIST-DWE-Enclosure-WORKING%20DOCS/Bills_Collection/ERITECH%20Handbook%20LP%20IEC%2062305%20LT30373.pdf?role=work

Generator Load Bank Folder https://www.dropbox.com/sh/5h3c1i3y7kesvhe/AADZIRL3pFMPcVKglsZBmz6ba?dl=0 100 KW Load Bank https://www.dropbox.com/s/agl2jkmjipdnu07/Basic%20Plan%20Sets.pdf?dl=0 500 KW Load Bank https://www.dropbox.com/sh/4m88tvjrlv2yhwh/AAASaX

For information on troubleshooting, service, replacement parts, see: Load Bank user manual https://www.dropbox.com/s/pl7txoji8yen537/Neptune_Manual-210608.pdf?dl=0 Safety Arc Flash safety. Arc Flash rating 15.8 cal/cm^2. Arc Flash PPE; Arc flash suit, Arc

M1 Electrical Drawings https://www.dropbox.com/sh/ew4b07o3vob81jp/AAAbPqAsfSfRRxCG9ntGAgaGa?dl=0 M1 Handling Equipment Folder https://www.dropbox.com/sh/6cqttbemvmu4ubg/AAAH8iYjejkPGryZPeY8NAkUa?dl=0 M1 Handling Equipment folder https://www.dropbox.com/sh

The original schematics were created using Logical SEE. They are currently maintained using Adobe. Master M1 Cell & Cart Drawings - Revision Controlled Vault Location https://hades.int.maui.nso.edu/solidworkspdm/DKIST%20File%20Vault/TechOps/Electrical-Ele

This is triggered when the Upper Enclosure trapped key is removed. Removing the trapped key removed disables Aperture Cover drives. The unintended stop may cause an Aperture Cover drive fault. When Aperture Cover drives are disabled GIC closes the M1 cove

M1 drawings folder https://www.dropbox.com/sh/owp7e47sjgewxhe/AADzRSUFVBi-SUQRBrRF8tyPa?dl=0 M1 electrical drawings https://www.dropbox.com/sh/ew4b07o3vob81jp/AAAbPqAsfSfRRxCG9ntGAgaGa?dl=0

image-20230427-211450.png There are a total of 15 GOTO display buttons on the main page. In addition, there are login, logout, and shutdown buttons as well as a display of the current user (if one is logged in). The engineering button will not appear unle

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The mount azimuth hard stops are designed to prevent the mount from exceeded it’s designed travel range. Because the mount can travel more that 360° the hard stops must be retracted to allow travel. There are two hard stops that are spring-operated to the

Calculated Access Positions Service Ring 601 (east) Service Ring 602 (west) P5/P6 P7/P8 P10/P11 MER1 70 220 40 100 190 MER2 95 245 65 125 215 MER3 120 270 or -90 90 150 240 MER4 145 295 or -55 115 175 265 MDC1 180 -30* 150 210 300 or -60 MDC1A 205 -5* 175

Level Identification Utilities Facilities Functional areas Cabinet Locations Networks Subnets Network map Locations Telescope Mount Enclosure Coude GIS HMI Trapped keys

image-20230413-215135.png Each icon serves as a button to open a faceplate that opens diagnostic data from each Stratix switch. image-20230502-172553.png There are various subpanels that can show information on port status, cable diagnostics, CIP Sync, an

Ground Floor Vibration isolation is critical. Look out for a report any crossover connection between the enclosure and Coude or Mount. Coude Cable Wrap Coude Cable wrap has 2 cables in one slot. If the cables get dirty they can bind and not slip within th

Ground Floor Vibration isolation is critical. Look for and report anything that bridges across the Enclosure to Coude or TMA. Mezzanine Level Coude Cable wraps have 2 cables in one slot. Cables can get dirty and bind. Cables in the cable wrap should be cl

1. Make sure radios have sufficient battery charge. 2. Power on SOURCE radio (one that has desired configuration) by simultaneously holding the PTT button and the UP arrow button. Display will momentarily show CLonE and then display F9- 1. 3. Repeat the a

Focused sunlight from the primary mirror at the TEOA present a thermal hazard. Approximately 15kW of energy is concentrated in a small area. This can and has caused damage to equipment mounted at the top end can and has resulted in lost time. Safety Funct

Web Applications Email Bravo Deltek costpoint DropBox Hippo Reqless Slack UltiPro Zoom Vault - Solidworks, drawing archive Software Eplan viewer Access Ignition user PanelView - add as user PanelView - add to Trapped key user screen Rockwell TechConnect c

OPC online reference https://reference.opcfoundation.org/Core/Part1/ OPC Quick Guide https://page.advantech.com/en/global/industrial-automation/industrial-io/opc-ua?gclid=CjwKCAjwsfuYBhAZEiwA5a6CDBgm29lJvabXechK-JFl3SB1_wMWZ6znG1JdA-geEBsQgbWefSMYOBoCvpIQ

With Mary’s help, we’ve installed an AiryLab Scintillometer on the OSS next to the Sun Sensors. It consists of a 3d printed interface box with an Arduino and custom interface electronics, the sensor itself, and a USB → Ethernet ->USB → Raspberry Pi connec

Communications between the Optical Support Subsystem (OSS) LIC and the GIC consists of one tag, an array of 128 BOOL values for various logic values (see below). OSS to GIC bit assignments OSS_to_GIC is a user-defined type SAFETY_ARRAY which consists of t

Sometimes a GIS door lock does not operate as expected. This can be because of one of several causes. Because the locks that prevent access to hazardous zones are an important functional safety aspect of the Global Interlock System it is equally important

@home

Battery Replacement The only regular maintenance required for the L6-series of GuardLogix Controllers is periodic replacement of the battery that backups volatile memory. From previous experience the battery should be replaced at least every 18 months. Th

Drawings Manually opening the roll-up doors may require a Job Hazard Analysis (JHA), particularly if there is a potential fall hazard. To open or close a roll-up door manually, open the control panel next to the door motor, jumper between terminals 1 and

All P-Flow spares are located in the Left Ground Floor EE Cabinet. PLC - 1766-L32BWA MicroLogix 1400 32 point. note, the spare PLC has one burned out input, but can be used with a code modification 1 x Estop button 2 x Estop button contacts 2 x Linak 121H

This page holds the CoolCon application that is running on the Liebert Racks and details how to load the program onto the Phoenix Contact PLC. Word Document details the instructions on loading the application onto the Phoenix contact PLC, but for our proc

Enclosure Motion Control System - EMCS Major areas and equipment PLC IO & Communication EMCS / LIC interface ECS interface Altitude, Azimuth, Aperture cover, Rear Door, Platform drives Altitude, Azimuth, Cable Wrap Encoders Azimuth, Cable Wrap Hardstops S

Programmable Logic Controllers A PLC, or Programmable Logic Controller, is a specialized digital computer system used to control and automate various industrial processes and machinery. PLCs are commonly employed in manufacturing, production, and industri

From GP-PRO menu bar: Click Project > Print > Print Setup You should see this screen GP-Pro Print Setup screen.png Click on ‘Screen Information’ To get a cross reference of tags on each screen Print Contents > Detail Select all screen options Select Cross

Beckhoff code development and modification happens on two applications: TwinCAT PLC Control This is the IDE for code development. Code projects are opened as *.pro file and editing is allowed in any of the standard IEC-61131 languages (Structured Text, La

What caused the DINT to get angry? The logic told him to get real. How do PLCs start a conversation? With a handshake. What did the older software say to the programmer? No comment. What did the timer say to the bit? I'm Done. Why did the programmer quit

Radios Folder https://www.dropbox.com/sh/08gayi00ik5qg37/AACaeRzvnjwsOTi6AqoyUK3Ta?dl=0 Yet another Radios folder https://www.dropbox.com/sh/574mt67cbg8voej/AADSt7fdBJauHBfTm8VMV3GYa?dl=0 Radio User Guide https://www.dropbox.com/s/9k6gnftshmvnm1g/RADIO_MA

Pages in this section: Rear Door - Enclosure Database Folder https://www.dropbox.com/sh/4ejk8etl0nml8ns/AAATGbT5mK-vu3m-7fLu8cnja?dl=0 Rear Door PLC S120 communication https://www.dropbox.com/s/5l1grvtdremw4ii/Rear%20Door%20PLC%20S120%20interface.pdf?dl=0

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Pages in this section Rockwell PLC documentation folder https://www.dropbox.com/sh/22wpt08zeysn3nr/AAAeyaJKArRQe4qyYZMSmhjBa?dl=0 Rockwell Folder https://www.dropbox.com/sh/22wpt08zeysn3nr/AAAeyaJKArRQe4qyYZMSmhjBa?dl=0 Rockwell Software https://www.dropb

We current have a TechConnect support https://www.rockwellautomation.com/en-us/support/knowledgebase/my-techconnect/techconnect-support-how-to.html contract with Rockwell (3-year ending in April 2025). With TechConnect, we have access to tools and informa

S&O Communication Plan - Revision Controlled Vault Location https://hades.int.maui.nso.edu/solidworkspdm/DKIST%20File%20Vault/TechOps/Electrical-Electronics-PLC/As-Built%20Drawings/S%26O%20Drawings%20of%20Record/Communcation%20Plan Copy of Current Master

S&O Facility One-Line & Power Plan - Revision Controlled Vault Location https://hades.int.maui.nso.edu/solidworkspdm/DKIST%20File%20Vault/TechOps/Electrical-Electronics-PLC/As-Built%20Drawings/S%26O%20Drawings%20of%20Record/Facility%20Electrical%20One-lin

S&O Grounding Plan - Revision Controlled Vault Location https://hades.int.maui.nso.edu/solidworkspdm/DKIST%20File%20Vault/TechOps/Electrical-Electronics-PLC/As-Built%20Drawings/S%26O%20Drawings%20of%20Record/Grounding%20Plan Copy of Current Master - DKIST

S&O Lighting Plan & Controls - Revision Controlled Vault Location https://hades.int.maui.nso.edu/solidworkspdm/DKIST%20File%20Vault/TechOps/Electrical-Electronics-PLC/As-Built%20Drawings/S%26O%20Drawings%20of%20Record/Lighting%20Plan%20and%20Controls Copy

Mechanical Power Plan - Revision-controlled Vault Location https://hades.int.maui.nso.edu/solidworkspdm/DKIST%20File%20Vault/TechOps/Electrical-Electronics-PLC/As-Built%20Drawings/S%26O%20Drawings%20of%20Record/Mechanical%20Power%20Plan Copy of current ma

S&O PFLOW Roof Latch Control Wiring and Panel Layout - Revision Controlled Vault Location https://hades.int.maui.nso.edu/solidworkspdm/DKIST%20File%20Vault/TechOps/Electrical-Electronics-PLC/As-Built%20Drawings/S%26O%20Drawings%20of%20Record/PFLOW%20Roof%

S&O Floor Layouts - Reference-only Vault Location https://hades.int.maui.nso.edu/solidworkspdm/DKIST%20File%20Vault/TechOps/Electrical-Electronics-PLC/As-Built%20Drawings/S%26O%20Drawings%20of%20Record/Floor%20Layouts Copy of current master - S&O Basic Fl

S120 Active Line Module LEDs.png

S120 Control Unit LED behavior Embedded file:

Anytime the GIS is operated in a non-normal way we want to log the event. A log entry should be made in any of these conditions: bypass or override via HMI hazardous zones doors end-of-travel limits break safety signature bypass or override safety logic i

Safety-Related Control Functions This section lists and summarizes the current list of planned safety functions. Safety-related control functions (SRCFs) are the result of a detailed hazard analysis of the equipment under control. After a hazard has been

@self GIS Fiber connections GIS IP assignments GIS Network Architecture https://www.dropbox.com/s/r4c2u2yd47f9sa2/GIS%20Configration%2004_21_2022.pdf?dl=0

The Beckhoff C6920-0030 IPCs (Industrial PCs) for both Mount and Coudé are provided with screens and touchpads mounted on MCC1 and CCC1 enclosure doors. The IPC chassis and I/O terminals are enclosed within self-contained, removable MMCU (Mount Motion Con

Siemens-related documentation and procedures: Siemens S120 Drives https://nso.atlassian.net/wiki/spaces/EE/pages/1732837512 Siemens STARTER Install (v5.2)

Intent Machine control programs are very complicated, expensive and fragile. Prototype (single instance) and new control systems are quite often continuously improved and upgraded. Configuration change is frequent. Multiple people will modify Drive Config

Siemens S120 Drive Configuration Folder https://www.dropbox.com/sh/zjzmmi8kautl8lz/AAD7aTNMPKmzOn9qJ53iJnBLa?dl=0 Siemens S120 Drive Configuration Files https://www.dropbox.com/home/Siemens%20Drive%20Configurations Siemens S120 Documents Siemens S120 Docu

The installer files are packaged into two *zip files: https://www.dropbox.com/s/rt45zcz9v7man1p/STARTER_V54_SP2_HF1_Programm_Part_1.zip?dl=0 https://www.dropbox.com/s/rt45zcz9v7man1p/STARTER_V54_SP2_HF1_Programm_Part_1.zip?dl=0 https://www.dropbox.com/s/6

Pages in this section: Elevation Cutaway DKIST Cutaway View.png DKIST Enclosure Elevation Top.png Enclosure Elevation - Top DKIST Enclosure Elevation Bottom.png Enclosure Elevation - Bottom Moon setting over DKIST Moonset over DKIST.jpg

RS Studio 5000 + license Rockwell FactoryTalk + license Siemens Starter + license optional Beckhoff + license B&R Automation Studio GP Proface HMI + license Delta Tau

Overarching Principles No online software changes during active observation. Peer review of excepted changes is strongly encouraged if possible. Exception: Emergency fix, with approval of the duty engineer. Exception: Low-risk changes may be collected off

We will strive to follow best practices for software development, in particular for the PLCs. The policies included here will help us to improve the operations in a deliberate and well-considered manner, moving the control software from stable point to st

Overview The solar position algorithm is part of the safety function designed to detect when the concentrated focused sunlight goes off the heat stop reflector. To do this the actual solar position is calculated and compared to the where the telescope is

Manufacturer Squared Product SurgeLogic Catalog Number TVS4IMA24P Peak Surge Current 240kA Module Catalog Number (All Phases) MA4IMA24 Diagnostic Cable (3 per kit) TVS36PCK Front Display (NEMA 1 SPDs only TVS3DSPHC Web search sources for parts https://www

The following table shows which safety functions cause which reactions within the GIS. [TRW1] Table A‑1 Reaction to Safety Function STO Safe Torque Off Safe Stop Category 0 Category 0 is an uncontrolled stop by immediately removing power to the machine a

Preface The Global Interlock System (GIS) Design represents a challenge in that its design is in parallel with (and in some cases before) the designs of the systems it is meant to safeguard. Without completed designs and hazard analyses, the safety functi

Preface This document details various engineering choices that were made during the early design process of developing the Global Interlock System. These choices represent the design decisions that were made and to serve as a guide to how the system is to

The Support Facilities and Buildings include the buildings, facility equipment and site infrastructure. Support Facilities and Building is WBS 6.0. This includes utilities (WBS 6.1.5). The Buildings (WBS 6.2): Support and Operations Building (WBS 6.2.1, U

Systems under configuration management Allen-Bradley PLCs Facility Thermal System Thermal AB (FMS) - Chris Foster Global Interlock System Enclosure LIC - Gary Foster GIC AB - Tim Mount LIC AB - Tim Coudé LIC AB - Tim OSS LIC AB - Wade Instrument LIC AB -

System Interconnects Folder https://www.dropbox.com/scl/fo/4bsnmij3n40xxiw1jqtq2/h?dl=0&rlkey=9x6fdhkqr5jnu6r80l1kqdrua Coude https://www.dropbox.com/sh/uayefgmoyk80fu3/AACxJkosFX61uM1Hu9xChaEpa?dl=0 Enclosure https://www.dropbox.com/sh/mzlld29y1j9rup3/AA

The system is now up and running, with the possibility of adding another screen for the Hazard Zone display in the control room. Login details for administration of the Intel Nuc’s running the screens is as follows, use TightVNC for remote access for upgr

Fundamentals Principles of Calculus Physical Constants, Units, Conversions Power, Energy, Work, Heat Machines Heat Transfer Flow & Pressure DC Electricity AC Electricity Inductance Capacitance Sources and sinks Equivalent circuits Boolean Logic A Primer o

Topics

Communications between the Telescope LIC and the GIC consist three tags, two REAL floating point values, Azimuth and Altitude positions; and an array of 128 BOOL values for various logic values (see below). Telescope to GIC floating point values TEL_Aliti

Telescope Altitude Display image-20230412-223552.png GIC The left side of the screen shows interlocks that a produced in the GIC and sent to the Mount LIC. GIC E-Stop Seismic Alarm Fire Alarm Altitude Trapped Key Bridge Crane Jib Crane TEOA Platform Reset

DisplaysInfo_Mount Azimuth.jpeg Azimuth Safety Encoder If the Azimuth Safety Encoder shows as incremental mode this means the encoder must be re-homed. This can reset from loss of power, loss of communications, or the controller being switched out of run

DisplaysInfo_Mount E-Stop v2.jpeg

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Indication Active State image-20231018-172013.png Safe State 1 image-20231018-172037.png Safe State 2 image-20231018-172059.png Fault State image-20231018-170313.png Condition The GIC calculated Sun position was not within 1.5 solar radii of the actual te

The Telescope Interlock Manager (TIM) is the HMI display the provides current information about the Global Interlock System via a touch screen display. The primary display is located at the Utility Level and a secondary display is in the control room. The

Additional pages in this section Drawings TMA & Coude Electrical Documents https://www.dropbox.com/sh/a6vw1vwpjhiwukd/AACeTEqvjd9MpJz5j7NsHy2da?dl=0 TMA Maintenance Document Folder https://www.dropbox.com/sh/2bumkwilb1eep3r/AACjaXTF7RiUr055cvD7K7KOa?dl=0

Mount Folder (in System Interconnects) https://www.dropbox.com/sh/sri1713yamcaued/AADUHXhabrSjJ_Dchwvp87W2a?dl=0 Mount Azimuth Cable Wrap Manual https://www.dropbox.com/s/6tn9515zmw20za2/2011.205-IE14.2073-IG-02%20Mount%20Azimuth%20Wrap%20Manual.pdf?dl=0

Telescope Mount Assembly - Revision-controlled Vault Location https://hades.int.maui.nso.edu/solidworkspdm/DKIST%20File%20Vault/TechOps/Electrical-Electronics-PLC/As-Built%20Drawings/TMA Copy of current master - Telescope Mount 20231207 For redlines: Plea

Mount Base LIC The Mount Base LIC is responsible for interlocks, limits, and emergency stop functions for the Telescope Mount Azimuth and Altitude Axes; Cable Wraps; M1 Mirror Cover; and M5/M6 Access Platforms. For details of implementation see LIC design

Telescope Overall Trapped Key Map Telescope Trapped Key Map image-20220809-172554.png

Background If the Aperture Cover drives fault, the GIS will close the light path, preventing M1 from opening and will try to force the Aperture Cover to close. Occasionally, the Aperture Cover drives will fault at the end of their opening motion with a st

TEOA Fuse Wire Routing TEOA Fuse Wire Routing.jpg

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TEOACS (TEOA control system) and GIS monitor for hazardous conditions. TEOACS is not a safety-rated system. On overtemperature (45°C) the TEOACS will close the safety shutter. GIS will deploy the safety shutter on two conditions: loss of coolant pressure

S120 support link https://support.industry.siemens.com/cs/mdm/99668646?c=57173872011&lc=pt-PT Testing fail-safe inputs and outputs Fail-safe I/O must be tested at defined intervals in order to validate their fail-safety (test stop or forced checking proce

2 kinds of people: Those who can extrapolate from incomplete data … -unknown 3 kinds of people: Those who can do math and those who cannot -unknown Engineering judgement When I hear the words ‘engineering judgement’; I know they are just going to make up

IMG_20220428_124530.jpgIMG_20220823_094845.jpg

This is a design document that is included for historical purposes and may not necessarily represent the final design. Original release of document was August 2009.

TEOA Electrical Folder https://www.dropbox.com/sh/rlm8a647jbkxf2i/AADNZOwiLkUMGnY0GDVB_C3ga?dl=0 TEOA Electrical Drawings Folder https://www.dropbox.com/sh/rlm8a647jbkxf2i/AADNZOwiLkUMGnY0GDVB_C3ga?dl=0 TEOA folder (Enclosure database) https://www.dropbox

Top End Optical Assembly Electronic Schematics Revision-controlled Vault Location https://hades.int.maui.nso.edu/solidworkspdm/DKIST%20File%20Vault/TechOps/Electrical-Electronics-PLC/As-Built%20Drawings/TEOA Copy of current master - TEOA Electronic Schema

The concentrated focused beam of sunlight produced by a 4.0m mirror is around 16.9 kW. Enough energy to boil a liter of water in about 3 seconds. The concentrated focused beam can and has cause damage to telescope components at or near the prime focus and

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Additional pages in this section List of technology topics useful for DKIST E Techs and Engineers Installed Technology overview Electrical distribution Control system architecture Networks / interfaces Cabinet locations / functions Instruments & Sensors E

Enclosure & GIS PLC Install RSLogix Go online with all PLC (EMCS + GIS) Understand LIC Logix and GuardLogix Understand how PLC and S120 drives interact Know where to find Rockwell documents S120 Motors & drives Install Siemens Starter. Go online with Rear

Transfer Bridge https://www.dropbox.com/sh/qvwh0c9bpsjvsio/AABwY-QpmVxz0J6cr7zuiYKVa?dl=0

Basic steps Prepare a USB drive. Save the application in GP-Pro Create a backup file of the application on a USB Drive Transfer the project on the USB drive to the Display EMCS HMI Transfer to display 0.png Prepare a USB drive. Get a USB drive that can be

AKA TVSS AKA SPD (Surge Suppression Device) TVSS locations Cabinet Description Location Events 03/22/2023 SES1 Square D Utility building, service entrance 1922 UB-SH2 Square D Utility building, across from Automatic Transfer Switch 814 SB-NH1A Square D Gr

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'A' trapped key 440T-AKEYE100A.jpg Overview The GIS utilizes trapped key interlocking. Trapped key interlocks are also known as Castell or Kirk key among other names. Trapped key interlocks utilize a series of keys and locks for sequential control of equi

This page is to help identify issues with the operation on the telescope and corrective action. 1 4/19/22 Mount did not go active Aborted-Error 2 Az failed with error(-14) controller interlocked Alt failed with error(-14) controller interlocked Beckhoff e

Vertiv tech support phone: 1-800-543-2378 Additional pages in this section UPS Folders https://www.dropbox.com/sh/5af8tffw7bwxrt7/AAB8F1V78Xj3CkyLu3nybNasa?dl=0 UPS Identification (in progress - to be confirmed) Site ID Description Documentation folder Ve

Liebert NX UPS rating at altitude Liebert NX UPS Derate for Altitude.png M1 Cover UPS Eaton 9xxx battery derating at altitude https://www.dropbox.com/s/xnluebgtpssymer/eaton-9px-ups-altitude-de-ratings-technical-information-ps153001en.pdf?dl=0

Test Procedures in this section:

Bill McBride's collection https://www.dropbox.com/home/DKIST-DWE-Enclosure-WORKING%20DOCS/Bills_Collection Clean Room Training http://hades.int.maui.nso.edu/solidworkspdm/DKIST%20File%20Vault/SysDocs/IT%26C/IT%26C%20Procedures/PROC-0263%20Coude%20Cleanroo

Pages in this folder A primer on the Engineering Profession: The Unwritten Rules of Engineering https://www.dropbox.com/s/bpnjk51mtm1zu94/Unwritten_Laws_of_Enginering.pdf?dl=0 A Primer on Industrial Instrumentation https://www.dropbox.com/preview/Electric

Electrical/Electronic Schematics

Cladding and vent gates plan https://www.dropbox.com/home/Maintenance%20Document%20Database%20(MDD)/enclosure/Maintenance%20Docs/Cladding%20and%20Ventilation%20Gates?preview=Cladding+and+vent+gates+plan.pdf Enclosure vent gate arrangement https://www.drop

Current Master Drawing ViSP - All Stop Distribution Box - 5263-WD-100407 Copy of Current Master - DKIST EC Master 20220727 For redlines: Please download a copy of the current master. Mark up electronically or by hand. Add a new line to the table with deta

Overview The Daniel K. Inouye Solar Telescope (DKIST) Visible Spectro-Polarimeter (ViSP) is a traditional slit-scanning spectrograph with the ability to observe solar regions up to a 120×78 arcsec2120×78 arcsec2 area. The design implements dual-beam polar

Pilz PNOZ relays in ViSP Electronics Rack #2 image-20230306-214502.png GIS Remote I/O in ViSP Electronics Rack #2 IMG_20220113_125353.jpg After taking a deep dive into the world of the ViSP all stop. Here are some of the key points. The ViSP all stop syst

Overview The ViSP features a safety function that can inhibit all motion. There is a group of All-Stop Buttons and a Safe/Run switch connected to a safety-rated relay. The system has been modified so that All-Stop is no longer tied the Global E-Stop syste

Electrical/Electronic Schematics

Google, Email, GDrive Access to the Google Drive shared folders and files Bravo Deltek DropBox Access to the Drop shared folders and files Dropbox shared folders Hippo Reqless Slack CAS Aura Central Administration Services UltiPro Zoom Vault - Solidworks,

Where do I find files, documents, drawings, etc.? As the project has evolved so has our tracking and storage of various files, documents, and drawings. This results in applicable documents that can possible be archived in numerous locations. This requires

A Work Breakdown Structure (WBS) is a tool used by project management and systems engineering to decompose a project into manageable components. It is typically organized into a hierarchical tree structure with clearly defined objectives and responsibilit