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Network LED Dimmer
Features
Network LED Dimmer
Description
System Control
The Opto 22 Network LED Dimmer is a constant voltage PWM
(pulse width modulation) dimmer that controls light-emitting
diodes (LEDs). Used alone or teamed together, this compact
dimmer is suited for applications involving LED color mixing,
stage or accent lighting, step or path marking, facade or wall
lighting, or any other use that requires variable light from
LEDs.
With serial communications included in the Network LED
Dimmer, you can now control LEDs through standard serial
protocols—including DMX512-A, Modbus/ASCII, and
Optomux—and incorporate lighting control into existing
building, automation, and lighting control systems.
The Network LED Dimmer is suitable for 12–24 VDC constant
voltage LED assemblies: lamps, bulbs, strips, bars, and rope. It
can also be used for other resistive-type loads.
Pulse width modulation provides linear dimming with
minimal color shift and flicker-free performance. The Network
LED Dimmer acts by controlling the amount of power sent to
the LEDs, rapidly changing the state from on to off. This high
switching frequency makes dimming both efficient and
effective for LEDs.
The Network LED Dimmer includes a serial communications
port, a test pushbutton, and two external indicator lights:
• TX/RX for serial communications—green indicates TX and
red indicates RX.
• PWM for ramp activity—Intensifies as LEDs are ramped up.
The Network LED Dimmer uses an RS-485 serial network.
Serial link connections require no tools: they are made by
bare-wire spring connectors. Duplicated positions on the
serial connector simplify daisy chaining. Up to 124 dimmers
can be on the same serial link (total for all protocols).
Two blocks of DIP switches inside the
dimmer’s case let you set the following
parameters:
• Protocol
• Address
• Serial line termination
• Baud rate (Modbus and Optomux only)
• Parity (Modbus only)
Addresses and baud rates depend on the protocol you use:
DMX
Address range
Manual Control
The built-in test pushbutton on the Network LED Dimmer
provides manual control for testing connections and settings:
To turn on or off
Push briefly
To ramp up or down
Push and hold; let go at the level of
brightness you want
1–512
1–127
1–255
250,000
9600
19,200
115,200
230,400
9600
19,200
115,200
230,400
To set the switches, use your smart phone to scan the QR code
(above right; also located inside the dimmer’s cover) and
Part Number
Part
Description
Networkable Constant Voltage LED
Dimmer, Serial Modbus/DMX, Push
LED-SPCV-LV100W
Button, Rated 100 W Low Voltage
(12/24 VDC)
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com
SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • [email protected] • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • [email protected]
© 2012–2013 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
DATA SHEET
For manual control beyond testing, you can wire your own
momentary pushbutton (typically a doorbell or other simple
normally open pushbutton) to the dimmer.
Baud rate
Modbus Optomux
Form 2036-130301
Once you have ramped to the level you want, you can push
briefly to turn LEDs off. When you push again to turn them
back on, the setting is retained and they will be at the same
level of brightness you set before.
Network LED Dimmer
Provides complete control of LED intensity (0–100%)
through serial communication or manual pushbutton
Uses DMX512-A, Modbus/ASCII, or Optomux protocols
Uses PWM (pulse width modulation) to control LED
performance without flicker or color shift
Compact, lightweight, sturdy package
PAGE
1
Network LED Dimmer
follow the link for configuration settings, wiring diagrams, and
more. Or see the Opto 22 Network LED Dimmer User’s Guide
(form 2038) for details.
Form 2036-130301
DATA SHEET
Network LED Dimmer
Specifications
PAGE
2
Nominal Input Voltage
12 or 24 VDC (Full range: 9–30 VDC)
Operating Current
20 mA @ 12 V, 0% duty cycle
30 mA with pushbutton pressed
Max. Output Power*
100 W @ 12 V: 8 A @ 50 °C ambient
100 W @ 24 V: 4 A @ 50 °C ambient
Derate to 0 A @ 70 °C ambient
On-board Fuse
10 A automotive mini fuse (red)
Torque Specs
Recommended for 6-position screw connector: 6 in.-lb. (0.678 N-m)
External Pushbutton Excitation
Open Circuit Voltage: 8 VDC Typical (P.B. open)
Short Circuit Current: 4 mA Typical (P.B. closed)
Protocols
DMX512-A, Modbus ASCII, Optomux
Serial Communication Link
1 RS-485 (shielded twisted-pair, 2 pair: one pair for data, one for common) port
with duplicate terminal positions for easy daisy chaining
Max. Turnaround Delay
12 microseconds (Modbus and Optomux only)
Max. Dimmers on Link
124 Opto 22 Network LED Dimmers
Max. Distance
1000 feet (304.8 m.) at 115,200; 500 feet (152.4 m.) at 250,000
Selectable Data Rates (Baud)
DMX: 250,000
Modbus: 9600; 19,200; 115,200; 230,400
Optomux: 9600; 19,200; 115,200; 230,400
Address Range
DMX: 1–512
Modbus: 1–127**
Optomux: 1–255**
Termination and Biasing***
Set DIP switch (inside case) if Dimmer is at the physical end of the link. Biasing
must be supplied by master for the RS-485 link.
LEDs
TX/RX: Green = TX; Red = RX
PWM: Intensifies as LEDs are ramped up; fully lit at duty cycle of 100%
PWM Frequency
244 Hz
PWM Period
4.2 milliseconds
PWM Resolution
Brightness commands are 8-bit logarithmic curve; duty cycle commands are
15-bit resolution
Max. Number of Ramp Steps
256 using logarithmic brightness curve; 32,768 if writing linear duty cycle
Ramp Time Parameter
(Optomux and Modbus protocols only) User selectable with range from 0–255
Operating Temperature
-20 to +70 °C
Storage Temperature
-20 to +85 °C
Humidity
0–95% humidity, non-condensing
Agency Approvals
UL, CE, CSA (all pending); RoHS
Warranty
30 months
*For rated power, mount to a flat, thermally conductive surface (steel, aluminum).
**Do not use address 0; it is the broadcast address.
***Both ends of the physical link must be terminated. Master must supply bias.
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com
SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • [email protected] • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • [email protected]
© 2012–2013 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
Network LED Dimmer
Connectors and LEDs
LED outputs
12/24 VDC power
connection
External
pushbutton input
For details on wiring and serial network
connections, see the Opto 22 Network LED
Dimmer User’s Guide (form 2038).
Network LED Dimmer
PWM LED
TX/RX LED
Test pushbutton
Serial port
Wiring
Low voltage LED light fixture*
12/24 VDC
Power supply
Momentary
pushbutton
(optional)
© 2012–2013 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
Form 2036-130301
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com
SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • [email protected] • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • [email protected]
DATA SHEET
* NOTE: Pre-manufactured LED light fixtures have a resistor
built in. If you are building your own assembly from LED
components, you must include an appropriate resistor.
PAGE
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Network LED Dimmer
Dimensional Drawing
2.50" (6.35 cm)
4.60" (11.68 cm)
1.27" (3.23 cm)
Form 2036-130301
DATA SHEET
Network LED Dimmer
4.98" (12.65 cm)
PAGE
4
Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • www.opto22.com
SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • [email protected] • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • [email protected]
© 2012–2013 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
More About Opto 22
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OptoEMU Energy Management System
The easy-to-use OptoEMU Sensor monitors electrical energy
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Sensor can monitor energy data from pulsing meters,
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data online using a software service or incorporate the data
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SNAP PAC System
Designed to simplify the typically complex
process of selecting and applying an
automation system, the SNAP PAC
System consists of four integrated
components:
• SNAP PAC controllers
• PAC Project™ Software Suite
• SNAP PAC brains
• SNAP I/O™
SNAP PAC Controllers
Programmable automation controllers
(PACs) are multifunctional, modular controllers based on
open standards.
Opto 22 has been manufacturing PACs for over two
decades. The standalone SNAP PAC S-series, the rack-mounted
SNAP PAC R-series, and the software-based SoftPAC™ all
handle a wide range of digital, analog, and serial functions for
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discrete and hybrid manufacturing.
SNAP PACs are based on open Ethernet and Internet Protocol
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without the expense and limitations of proprietary networks
and protocols. Wired+Wireless™ models are also available.
PAC Project Software Suite
Opto 22’s PAC Project Software Suite provides full-featured,
cost-effective control programming, HMI (human machine
interface) development and runtime, OPC server, and
database connectivity software for your SNAP PAC System.
Control programming includes both easy-to-learn flowcharts
and optional scripting. Commands are in plain English;
variables and I/O point names are fully descriptive.
PAC Project Basic offers control and HMI tools and is free for
download on our website, www.opto22.com. PAC Project
Professional, available for separate purchase, adds one
SoftPAC, OptoOPCServer, OptoDataLink, options for controller
redundancy or segmented networking, and support for legacy
Opto 22 serial mistic™ I/O units.
SNAP PAC Brains
While SNAP PAC controllers provide central control and data
distribution, SNAP PAC brains provide distributed intelligence
for I/O processing and communications. Brains offer analog,
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linearization; PID loop control; and optional high-speed digital
counting (up to 20 kHz), quadrature counting, TPO, and pulse
generation and measurement.
SNAP I/O
I/O provides the local connection to sensors and equipment.
Opto 22 SNAP I/O offers 1 to 32 points of reliable I/O per
module, depending on the type of module and your needs.
Analog, digital, and serial modules are all
mixed on the same mounting rack and
controlled by the same processor (SNAP
PAC brain or rack-mounted controller).
Quality
Founded in 1974, Opto 22 has established a
worldwide reputation for high-quality
products. All are made in the U.S.A. at our
manufacturing facility in Temecula,
California. Because we test each product
twice before it leaves our factory, rather
than only testing a sample of each batch,
we can guarantee most solid-state relays
and optically isolated I/O modules for life.
Free Product Support
Opto 22’s California-based Product Support Group offers free,
comprehensive technical support for Opto 22 products. Our
staff of support engineers represents decades of training and
experience. Support is available in English and Spanish by
phone or email, Monday–Friday, 7 a.m. to 5 p.m. PST.
Additional support is always available on our website: how-to
videos, OptoKnowledgeBase, self-training guide,
troubleshooting and user’s guides, and OptoForums.
In addition, hands-on training is available for free at our
Temecula, California headquarters, and you can register online.
Purchasing Opto 22 Products
Opto 22 products are sold directly and through a worldwide
network of distributors, partners, and system integrators. For
more information, contact Opto 22 headquarters at 800-3216786 or 951-695-3000, or visit our website at
www.opto22.com.
www.opto22.com
www.opto22.com • Opto 22 • 43044 Business Park Drive • Temecula, CA 92590-3614 • Form 1335-121210
SALES 800-321-6786 • 951-695-3000 • FAX 951-695-3095 • [email protected] • SUPPORT 800-835-6786 • 951-695-3080 • FAX 951-695-3017 • [email protected]
© 2013 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
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