Application Note #559 Revision C September 2016

Transcription

1 Dimming Low-Voltage LED MR Lamps Application Note #9 Revision C September 0 Light Emitting Diodes (LEDs), also known as Solid State (SSL), are replacing traditional light sources in almost all lighting applications. Low-voltage halogen MR lamps are among the sources being targeted for replacement by LEDs. Because these traditional halogen MR lamps are simple resistors, their electrical characteristics and performance are easy to model, regardless of whether they are fed from an ELV or MLV transformer. LED MR lamps are constructed with built-in electronic drivers and can cause several problems with dimming (See Technical Paper, Challenges of Dimming LED s on ELV and MLV Transformers). Dimming Solutions with MR Lamps. In the table below, identify the type of transformer used in your application.. Ensure that the dimming control model used in your application is listed below. These are the only dimming controls recommended by Lutron to work successfully with MR lamps listed in this document. Transformer Dimming Control Models Dimming Range MLV NTLV-00-xx-CPN099 E-I Core Toroidal Maximum Lamps per Transformer Maximum Lamps per Control VT-000MN-x-xx GT-0M-WH GTJ-0M-WH RRT-GLW HQRT-GLW GT-NEM-WH GTJ-NEM-WH RRT-GNEW HQRT-GNEW PD-NE-xx 00% 0% MRF-ND-0-xx 9 PD-0NXD-xx RRD-NA-xx 9 HQRD-NA-xx 9 RRD-0ND-xx HQRD-0ND-xx PHPM-PA-0-WH 0 PHPM-WBX-0-WH 0 HW/LP-RPM-U-0 Up to 0/channel; 0 total for module HW/LP-RPM-A-0 Up to 9/channel; 0 total for module GP (Harrier) Card 0 This is the dimming range achievable with LED MR bulbs. A 0% measured light level is perceived as a % light level by the eye. For low light level applications (e.g., restaurants, dining rooms, bar areas), energy-efficient halogen MR lamps can achieve a less than % measured light level which is perceived as a less than 0% light level by the eye. See Energy-Efficient Halogen MR Lamps table. Consider each LED as 0 W. For ganging and derating, refer to dimmer installation guide. All MLV transformers should be equipped with a primary fuse to protect against overheating. Toroidal transformer requires LUT-LBX-WH. Needs to be configured to forward phase mode for MLV loads. Note: If your application does not use any of the above-mentioned transformers, does not have a neutral connection at the wallbox location where dimming control is to be installed, and/or if it requires a dimming range of less than 0%, using high efficacy halogen MR lamps is suggested (see Energy-Efficient Halogen MR Lamps table). Customer Assistance.8.LUTRON

2 Application Note #9 Dimming Solutions with MR Lamps (continued) Transformer Dimming Control Models Dimming Range ELV NTELV-00-xx Hatch RS-0M-LED Lightech LET-7 Lightech LET-0 Maximum Lamps per Transformer Maximum Lamps per Control NTELV-00-xx GT-NEM-WH 0 GTJ-NEM-WH 0 RRT-GNEW 0 HQRT-GNEW 0 DVELV-00P-xx or DVELV-0P-xx CTELV-0P-xx 00% 0% SELV-00P-xx or SELV-0P-xx PD-NE-xx 0 MAELV-00-xx MRF-ELV-0-xx PHPM-PA-0-WH 8 PHPM-WBX-0-WH 8 HW/LP-RPM-A-0 Up to /channel; 8 total for module This is the dimming range achievable with LED MR bulbs. A 0% measured light level is perceived as a % light level by the eye. For low light level applications (e.g., restaurants, dining rooms, bar areas), energy-efficient halogen MR lamps can achieve a less than % measured light level which is perceived as a less than 0% light level by the eye. See Energy-Efficient Halogen MR Lamps table. Consider each LED as 0 W. For ganging and derating, refer to dimmer installation guide. ELV transformers are recommended for reducing audible noise from fixtures in new construction. Lightech LET-0LW is NOT recommended for use with any LEDs listed in this document. Needs to be configured to reverse phase mode for ELV loads. Note: If your application does not use any of the above-mentioned transformers, does not have a neutral connection at the wallbox location where dimming control is to be installed, and/or if it requires a dimming range of less than 0%, using high efficacy halogen MR lamps is suggested (see Energy-Efficient Halogen MR Lamps table). lutron.com/help

3 Application Note #9 Dimming Solutions with MR Lamps (continued). Select appropriate MR lamp. a. If you require a dimming range of 00% 0%, select one of the LED MR lamps from the following list. These LED MR lamps have been tested for performance and are recommended by Lutron. LED MR Lamps SORAA GU. Base: U.S. Product Family Model Beam Watts Halogen Equivalent SM-07-0D W VIVID W CRI 9, R9 9 SM-07-D W SM-07-D W SM-07-0D W VIVID W CRI 9, R9 9 SM-07-D W SM-07-D W SM-07-0D W VIVID W CRI 9, R9 9 SM-07-D W SM-07-D W SM-07-0D W VIVID W CRI 9, R9 9 SM-07-D W SM-07-D W SM-07-0D W BRILLIANT 700K 7.W CRI 80 SM-07-D W SM-07-D W SM-07-0D W BRILLIANT 000K 7.W CRI 80 SM-07-D W SM-07-D W Note: To view specific SORAA specification sheets and lamp characteristics, visit or b. If you require a low-light level dimming range of less than 0%, select one of the energy-efficient halogen MR lamps from the following list. These are the only halogen MR lamps recommended by Lutron. Energy-Efficient Halogen MR Lamps Wattage Manufacturer Model Rated Equivalent GE 798-Q0MRHIR/CCG 0 W 0 W OSRAM DECOSTAR ECO SUPERSTAR W W W 0 W Philips Advantage IRC 0 W W 0 W 0 W Sylvania TRU-AIM 0 W W W 0 W Dimming Range 00% %. Wire the load (see following pages for wallbox dimming control wiring diagrams). Note: Refer to wiring diagrams in the product installation guides for PHPM interfaces, HW/LP-RPM modules, and GP dimming cards. Customer Assistance.8.LUTRON lutron.com/help

4 Application Note #9 Wallbox Dimming Control Wiring Digital Controls: Single-Pole Wiring Ground Key Black Smart Red Blue (capped) White Wire connector Wire or black screw terminal* Wire or brass/gold screw terminal* Wire or green screw terminal* Wire or silver screw terminal* Wire or blue screw terminal* * Smart dimmers and companion dimmers have wires or screw terminals. Digital Controls: Multi-Location Wiring ( Side) Note: Smart dimmer must be installed on the load side of the circuit (except for models -0M, -GLW, -NEM, and -GNEW which must be installed on the line side). See next diagram for Grafik T wiring. Black Red Black Red Black Red Black Red Smart ** White Blue Blue Blue Blue ** Supports up to 9 total companion dimmers. GRAFIK T Controls: Multi-Location Wiring (Line Side) -0M, -GLW, -NEM, -GNEW models with GT-AD, RD-GRDW, or HQT-GRDW Red Red Red Note: Control must be installed on the line side of the circuit if using neutral wire. Black Grafik T *** White Blue Blue Blue *** Supports up to total companion dimmers. Total blue traveler wire length may be up to 0 ft ( m). lutron.com/help

5 Application Note #9 Wallbox Dimming Control Wiring (continued) Analog Controls: Single-Pole Wiring Ground Key Black Red or Yellow Wire connector s have wires; switches have screw terminals. White Analog Controls: -Way Wiring Note: must be installed on the load side of the circuit. Copper/Black -Way Switch Brass/Gold Brass/Gold Red Red or Red/White Yellow White Lutron is a registered trademark of Lutron Electronics Co., Inc. registered in the U.S. and other countries. GRAFIK T is a trademark of Lutron Electronics Co., Inc. Lutron Contact Numbers WORLD HEADQUARTERS USA Lutron Electronics Co., Inc. 700 Suter Road Coopersburg, PA TEL: FAX: Customer Assistance:.8.LUTRON ( ) intsales@lutron.com North & South America Technical lines USA, Canada, Caribbean: Mexico: Central/South America: EUROPEAN HEADQUARTERS United Kingdom Lutron EA Ltd. Sovereign Close London, EW JF United Kingdom TEL: +.(0) FAX: +.(0) FREEPHONE (UK): Technical Support: +.(0) lutronlondon@lutron.com ASIAN HEADQUARTERS Singapore Lutron GL Ltd. 90 Havelock Road #07-0 King s Centre Singapore 9 TEL: +.0. FAX: +.0. Technical Support: lutronsea@lutron.com Asia Technical lines Northern China: Southern China: Hong Kong: Indonesia: Japan: Macau: Taiwan: Thailand: Other Countries: +.0. Lutron Electronics Co., Inc. 700 Suter Road Coopersburg, PA U.S.A. P/N 089 Rev. C 09/0