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See all results3672063 · Product Brochure · May 2010 · English · PDF, 8 pages, 2.5 MB
Lutron Sivoia QS Roller Shades Product Brochure: Intelligent Hembar Alignment (3672063)
Lutron's white paper on Intelligent Hembar Alignment, which holds Sivoia QS and Sivoia QED hembars within 1/8 in.
Lutron 3672063 (May 2010), Sivoia QS Roller Shades Product Brochure: Intelligent Hembar Alignment. https://assets.lutron.com/a/documents/367-2063 - lutron iha white paper.pdf, via https://newwaykl.com/resources/lutron/roller-shades/sivoia-qs/lutron-sivoia-qs-roller-shades-product-brochure-3672063/
About document 3672063
Lutron document 3672063, dated May 2010, is the Intelligent Hembar Alignment technical white paper: closed-loop speed control, roll-up diameter compensation, causes of misalignment, the timed-preset comparison, standard, customized and advanced IHA, and why alignment matters.
What brochure 3672063 covers
Lutron document 3672063 has these six sections. Each link opens the PDF at that page in a new tab.
- Introduction, opens in a new tab page 2
- Science behind IHA, opens in a new tab page 2
- Causes of misalignment in shades without IHA, opens in a new tab page 3
- Industry standard alignment versus IHA, opens in a new tab page 4
- Application of IHA: standard, customized and advanced, opens in a new tab page 4
- The importance of IHA, opens in a new tab page 7
Specifications in 3672063
Lutron document 3672063 prints 22 values in the groups the document uses, each with the document's unit. The page link beside each group opens the PDF where the group starts.
Introduction
PDF page 2 of 3672063, opens in a new tab- Hembar alignment
- Within 1/8 in, during motion and at all resting positions
- Difference the eye detects
- 1/4 in at 5 ft
- Shades covered
- All sizes and models of Sivoia QS and Sivoia QED shades
Part 1: Closed loop electronic speed control
PDF page 2 of 3672063, opens in a new tab- Speed monitoring
- 500 times per second
- Loop elements
- Motor output speed sensor; microchip computing speed error; motor drive circuit adjusting power
- Motor load
- Nearly zero at open to maximum at closed
- Variations corrected
- Load; shade-to-shade and motor-to-motor differences; motor wear; wiring type and run length; line voltage and frequency; power supply output voltage
Part 2: Roll up diameter compensation
PDF page 3 of 3672063, opens in a new tab- Roll up diameter
- Outside diameter of tube plus rolled fabric, in inches
- Hembar speed
- Vertical linear speed, in inches per second
- Drive speed
- Rotational speed of tube and drive, in RPM
- Algorithm inputs
- Shade height; fabric thickness
- Non-preset positions
- Aligned within 1/8 in
Causes of misalignment in shades without IHA
PDF page 3 of 3672063, opens in a new tab- Causes
- Drive type; tube size; fabric thickness; installation levelness and tracking; drive age
Industry standard alignment vs. IHA
PDF page 4 of 3672063, opens in a new tab- Maintains position over time
- IHA only
- Works at non-preset positions
- IHA only
- Works across shade and drive types
- IHA only
- Accounts for installation variables
- IHA only
- Preset positions and open/close limits
- Timed presets and IHA
Application of IHA
PDF pages 4, 5 and 6 of 3672063, opens in a new tab- Standard IHA
- Factory calibration to one drive speed; most installations within 1/8 in
- Customized IHA
- Field calibration by laptop from per-shade measurements; similar-length shades within 1/8 in at all times
- Customized IHA field example
- Three roller 64 and two roller 100 shades synchronized in under an hour
- Advanced IHA
- Quantum system: slanted roofs with uneven shade lengths; vertically stacked shades; choreographed movement
Facts Lutron states in 3672063
The values Lutron document 3672063 states, as published:
- Alignment tolerance
- Within 1/8 in during motion and at all resting positions
- Difference the eye detects
- 1/4 in at 5 ft, as Lutron notes
- Where IHA is included
- All sizes and models of Sivoia QS and Sivoia QED shade treatments, with field fine-tuning available
- Speed control loop
- Shade speed sampled 500 times per second
- Sensor at the motor output, microchip computing the speed error
- Drive circuit adjusting power
- Factors the loop corrects
- Load rising from open to closed
- Shade-to-shade and motor-to-motor variation, motor wear
- Wiring type and run length, line voltage and frequency
- Power supply output variation
- Constant-speed drive effect
- A constant-speed drive moves the hembar slower near the closed limit and faster near open, as roll-up diameter changes
- Roll-up diameter compensation
- A patented algorithm varies motor RPM with shade height and fabric thickness, keeping the hembar's linear speed constant
- Non-preset positions
- A bank of shades sent to a non-preset position by a raise or lower command stays aligned within 1/8 in
- Causes of misalignment without IHA
- Drive type, tube size, fabric thickness, installation levelness and tracking, and drive age
- Timed presets comparison
- Timed-preset systems do not sense absolute position and can drift
- IHA keeps position over time and works at non-preset positions
- IHA works across shade and drive types and accounts for installation variables
- Standard IHA
- All shades factory-calibrated to the same drive speed, with most installations within 1/8 in
- Customized IHA
- Applied by laptop after installation and leveling, from per-shade measurements
- Accounts for lot-to-lot fabric variation and shim tape
- Three roller 64 and two roller 100 synchronized in under an hour
- Advanced IHA
- Through a Quantum system: shades of uneven length along a slanted roof, shades stacked vertically, and choreographed movement
- Why alignment matters
- Misaligned blackout shades can leak light into an AV boardroom
- Misaligned solar-tracked shades can admit glare
- Hembars can miss mullions, hang below the ceiling or rest on sills
Questions about document 3672063
The answers come from Lutron document 3672063 and New Way's record of it.
What is Lutron document 3672063?
Lutron's eight-page white paper, part number 367-2063 of May 2010, filed in the library as a product brochure.
Which revision of 3672063 is current?
Lutron publishes document 3672063 without a revision letter, dated May 2010. New Way checked it against assets.lutron.com on 16 October 2026.
Which roller shades does 3672063 cover?
Lutron Sivoia QS roller shades.
How closely does IHA keep shade hembars aligned?
Within 1/8 in during motion and at all resting positions, per Lutron document 3672063. IHA comes on all sizes and models of Sivoia QS and Sivoia QED shades.
Lutron sets that against the 1/4 in difference the eye detects at 5 ft.
Why do timed presets drift?
Timed-preset systems do not sense the shade's absolute position, so presets drift over time, per Lutron document 3672063. Drifted presets need field service calls to realign.
Lutron document 3672063 shows IHA keeping position over time, at non-preset positions and across shade and drive types.
How does the drive keep hembar speed constant as the roll grows?
A patented algorithm in the drive's microcontroller varies the motor RPM continuously, per Lutron document 3672063. The algorithm takes the shade height and fabric thickness, so the hembar's linear speed stays constant.
Lutron document 3672063 pairs that with a speed loop sampling 500 times per second.
What is the difference between standard and customized IHA?
Lutron document 3672063 says standard IHA is the factory calibration that puts most installations within 1/8 in.
Customized IHA is applied by laptop after the shades are installed and leveled, from measurements on each shade. Lutron document 3672063 cites five shades in one space synchronized that way in under an hour.
Can shades of different lengths under a sloped ceiling stay aligned?
Lutron document 3672063 handles that case with advanced IHA through a Quantum system.
- Shades of uneven length along a slanted roof
- Shades mounted one above another
- Choreographed movement
Other Sivoia QS brochures
Brochures for the same Sivoia QS system:
| Document | Drive class | Revision | Date |
|---|---|---|---|
| 3672346Roller Shades Product Brochure: Commercial Shading Solutions | Commercial Contract Manual, Roller 20 to 300 | B | Jan 2016 |
| 3672148Roller Shades Product Brochure: Commercial Selection Guide | Commercial Contract Manual, Roller 20 to 300 | F | Mar 2016 |
| 3671319Product Brochure: Residential Shading Solutions | Roller 20 to 300 | K | Feb 2023 |
| 3672596Roller Shades Product Brochure: Armstrong Integrated | Roller 20 to 300 |
Documents used with 3672063
Lutron document 3672063 names no part numbers. Lutron documents 3672346 and 3672148, the commercial shading solutions brochure and the commercial roller shade selection guide, sit beside it.
| Document | Type | Revision | Date |
|---|---|---|---|
| 085835Serena Open Roll Roller Shades Specification Submittal | Specification Submittal | A | Feb 2026 |
| 369612Pico Wireless Control Specification Submittal | Specification Submittal | Q | Jun 2025 |
| 0454114-Group RF Remote Control Installation Guide | Installation Guide | D | Jan 2015 |
| 045520Basic Wiring and Setup Installation Guide | Installation Guide | B | Nov 2016 |
| CAD Drawing: 30-Output Configurable Power Panel Enclosure (Power Modules Sold Separately), 35V Output, Elevation View (Front) | CAD Drawing | ||
| CAD Drawing: 30-Output Configurable Power Panel Enclosure (Power Modules Sold Separately), 35V Output, Plan View (Bottom) | CAD Drawing | ||
| 045000710 Output Power Panel Power Supply (12 V) Installation Guide | Installation Guide | A | Jul 2025 |
| 08533510-Output Smart Panel Specification Submittal | Specification Submittal | D | Apr 2020 |
| Roller Shades Wiring Diagram: Multiple Shades per Single QS Smart Panel | Wiring Diagram | ||
| Roller Shades Wiring Diagram: One Shade per Single QS Smart Panel | Wiring Diagram |
Not covered in 3672063, and what to read next
Lutron document 3672063 gives no laptop software steps, commissioning procedure, or drive, tube or fabric data.
Publisher and citation for document 3672063
Lutron Electronics Co., Inc. publishes document 3672063 and serves it from assets.lutron.com. New Way hosts no copy and last checked the file there on 16 October 2026.
Lutron and Sivoia QS are trademarks of Lutron Electronics Co., Inc.
Reviewed by Edmond Hong, Technical Specialist, New Way.
Specifying Sivoia QS?
New Way supplies and installs Lutron Sivoia QS shading in Malaysia and Singapore. A New Way specifier can check your shade schedule and drawings before you submit.
The form opens with document 3672063 filled in.
