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Lutron Sivoia QS Roller Shades Application Note: Battery Backup
Lutron's application note on keeping Sivoia QS shades and draperies moving through a power failure with a UPS.
Lutron, Sivoia QS Roller Shades Application Note: Battery Backup. https://assets.lutron.com/a/documents/qs_battery_backup_app_note.pdf, via https://newwaykl.com/resources/lutron/roller-shades/sivoia-qs/lutron-sivoia-qs-roller-shades-application-note-battery-backup/
About this Sivoia QS note
Lutron's Battery Backup and Sivoia QS note of 2010, with no document number printed, is the UPS note: voltage, waveform, VA and runtime tests, then automatic movement via a seeTouch QS keypad and a relay.
What this Sivoia QS note covers
This Sivoia QS note has these seven sections. Each link opens the PDF at that page in a new tab.
Specifications in this Sivoia QS note
This Sivoia QS note prints 21 values in the groups the document uses, each with the document's unit. A row names the catalog codes it applies to. The page link beside each group opens the PDF where the group starts.
- UPS voltage
- Same as the power panel or transformers
- Example, USA
- 120 V
- Example, Europe
- 230 V
- Recommended UPS voltage
- 120 VModels: SUA1500
- Required UPS output
- Pure sine wave
- Unsuitable UPS output
- Modified sine
Power delivery
PDF page 2 of this Sivoia QS note, opens in a new tab- Minimum UPS rating for a QS Smart Panel Power Supply
- 800 VA
- QS Smart Panel Power Supply load
- Under 800 VA
- QS Individual Power Supply load
- Under 100 VA
- Runtime at minimum load
- 5 hoursModels: SUA1500
- Runtime at 100 VA
- 3 hoursModels: SUA1500
- Runtime at 800 VA
- 10 minutesModels: SUA1500
- Assumed shade travel
- 30 seconds to fully open or close
- Assumed load
- Full QS Smart Panel Power Supply, 10 shades
- Runtime ratio
- (30 s per motion) x (5 h) / (10 min) = 15 min per motion
Automatic operation
PDF page 3 of this Sivoia QS note, opens in a new tab- Relay type
- High-voltage relay or contactor, double throw
- Suggested relay, 120 V
- Omron relayModels: MY2N-AC110/120(S)
- Suggested socket
- Omron relay socketModels: PYF08A-E
- Relay coil supply
- AC mains that are not battery backed
- Keypad conductors
- (3) 18 AWG (1.0 mm²)
- Keypad inputs
- Common; close input (bottom button); open input (top button)
Installation walk-through for this Sivoia QS note
This Sivoia QS note gives four steps, in the document's order, after the fixings it lists.
The clearance, the check and the warning under a step are the document's own.
Fixings
- Omron MY2N-AC110/120(S) double throw relay (suggested for 120 V)
- Omron PYF08A-E relay socket
- seeTouch QS keypad
- Three 18 AWG (1.0 mm²) conductors from the relay to the keypad inputs
Wire the keypad to the QS link
Connect the seeTouch QS keypad to the Sivoia QS communication link. Lutron's battery backup note sends the installer to the keypad's instruction sheet for this connection.
Warning: Turn off the circuit breaker or remove the main fuse before starting, or serious injury can result.
Wire the normally closed output
Run the relay's normally closed output to the keypad input that should act when power is lost. To have the shades open in a power cut, for example, land it on the keypad's open input.
Clearance: (3) 18 AWG (1.0 mm²) conductors: common, close input, open input
Warning: Never connect mains voltage to the keypad's low-voltage terminals.
Wire the normally open output, if wanted
Use the relay's normally open output in the same way when the shades should also move as power comes back. Land it on the keypad input for that movement.
Feed the relay coil from the mains
Connect the relay's input to the AC mains that are not on the battery backup. The coil then drops out only when the mains fail, while the UPS keeps the shades powered.
Check: With mains on, the coil is energized and the normally open contact is made. When power fails, the normally closed contact makes and the keypad moves its assigned EDUs.
Warning: Wire to National Electric Code methods and confirm local requirements with the electrical inspector.
Facts Lutron states in this Sivoia QS note
The values this Sivoia QS note states, as published:
- Purpose
- Move Sivoia QS shades and draperies during a power failure, for privacy or security, with supplies on a UPS
- Voltage
- Same voltage as the power panel or transformers it feeds: 120 V in the USA or 230 V in Europe
- Waveform
- Pure sine wave output required, because Sivoia QS is powered by a low voltage transformer
- Modified sine risk
- On battery a modified sine UPS overheats the transformer, which vibrates or buzzes, and may damage both units
- Power delivery
- More VA than the transformers it powers: at least 800 VA for a QS Smart Panel Power Supply
- Supply loads
- QS Smart Panel Power Supply under 800 VA and QS Individual Power Supply under 100 VA
- Recommended UPS (US)
- APC Smart-UPS 1500, model SUA1500, a 120 V pure sine wave unit
- Runtime of the SUA1500
- About 5 hours at minimum load
- 3 hours at 100 VA
- 10 minutes at 800 VA
- Runtime per movement
- Each movement takes about 15 minutes off the 5 hour runtime, assuming:
- A 30 second travel
- A full Smart Panel of 10 shades
- Automatic operation
- A seeTouch QS keypad plus a double throw high voltage relay or contactor
- Suggested relay (120 V)
- Omron MY2N-AC110/120(S) relay in an Omron PYF08A-E socket
- Keypad wiring
- Three 18 AWG (1.0 mm²) conductors: common, close input (bottom button) and open input (top button)
- Electrical safety
- Breaker off or main fuse out before any work
- No mains voltage on low-voltage terminals
- National Electric Code wiring methods and local code
Questions about this Sivoia QS note
The answers come from this Sivoia QS note and New Way's record of it.
What is Lutron's Battery Backup and Sivoia QS note?
Lutron's three-page note, under a 2010 copyright line with no document number, revision or date printed. Lutron works the example on a 120 V UPS for the US market and names no 230 V model.
Which revision of this Sivoia QS note is current?
Lutron publishes this Sivoia QS note without a revision letter. New Way checked it against assets.lutron.com on 16 October 2026.
Which roller shades does this Sivoia QS note cover?
Lutron Sivoia QS roller shades.
Which UPS waveform does a Sivoia QS system need?
Lutron's battery backup note requires a pure sine wave UPS. On battery, a modified sine wave overheats the low voltage transformer and may damage both the UPS and the transformer.
How much UPS capacity does a QS Smart Panel Power Supply need?
Lutron's battery backup note asks for a UPS that supplies more VA than the transformers it feeds. A QS Smart Panel Power Supply needs at least 800 VA; a QS Individual Power Supply loads under 100 VA.
Can the shades open by themselves in a power cut?
Lutron's battery backup note says yes: wire the relay's normally closed output to the seeTouch QS keypad's open input.
The normally open output, on another input, moves the shades when power returns. The relay coil feeds from mains that are not battery backed.
Which relay does Lutron suggest?
Lutron's battery backup note suggests an Omron MY2N-AC110/120(S) double throw relay in an Omron PYF08A-E socket for 120 V installations. The relay wires to the keypad with three 18 AWG (1.0 mm²) conductors.
How long will the shades run on battery?
Lutron's battery backup note estimates about 5 hours on the APC Smart-UPS 1500 at minimum load.
- 3 hours at 100 VA, 10 minutes at 800 VA
- Full panel of 10 shades: about 15 minutes off per movement
Other Sivoia QS application notes
Application notes for the same Sivoia QS system:
| Document | Drive class | Revision | Date |
|---|---|---|---|
| 048562Application Note: Alkaline Battery Screening and Diagnosis | Roller 20 to 300 | A | Jul 2015 |
| Application Note: Blink Codes for Shades and Venetian Blinds | Roller 20 to 300 | ||
| 3683231Application Note: Care and Maintenance of Window Treatments | Clutch, Commercial Contract Manual, Roller 20 to 300 | C | |
| 048736Application Note: Maximizing Light Blockage with Guestroom Window Treatments | Roller 20 to 300 | C | Jul 2022 |
Documents used with this Sivoia QS note
Lutron's battery backup note sizes the UPS for two Sivoia QS supplies and cites no document number for either. Lutron document 045520 is the Sivoia QS basic wiring and setup installation guide.
| Document | Type | Revision | Date |
|---|---|---|---|
| 045520Basic Wiring and Setup Installation Guide | Installation Guide | B | Nov 2016 |
| 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 |
| 045964Cordless Manual Roller Shade Installation Guide | Installation Guide | B | Nov 2025 |
| 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 |
Not covered in this Sivoia QS note, and what to read next
Lutron's battery backup note does not cover keypad programming, the QS link wiring or a UPS model for 230 V.
- Keypad wiring: the seeTouch QS keypad's instruction sheet, unnumbered
- Link wiring: 045520, the Sivoia QS basic wiring and setup installation guide
Publisher and citation for this Sivoia QS note
Lutron Electronics Co., Inc. publishes this document 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.
