W-DIM4 RDM - RC4 Wireless
RC4Wireless
W-DIM4 RDM
User Manual
R1.8
Overview
The RC4Wireless W-DIM4 is a lowvoltage DC power 4-channel wireless
dimmer. It communicates with Wireless
Solution W-DMXTM transmitters.
W-DIM4 is the ideal way to add wireless
dimming to a W-DMXTM wireless DMX
system and put battery-powered lamps,
motors, relays, solenoids, and more into
hand-held props, costumes, moving sets
pieces, and other hard-to-reach or
untethered locations. It operates with 6V
to 30VDC power input and provides up to
180W per output (peak) at 12VDC, to a
maximum combined total power of
500W. High-efficiency pwm (pulsewidth-modulation) dimming provides high
output power with minimal heat and
power loss.
W-DIM4 incorporates comprehensive monitoring of internal operating conditions,
including temperature, supply voltage, and current draw on each individual
dimmer channel.
The W-DIM dimmer card supports remote parameter configuration and real-time
sensor monitoring using RDM (DMX Remote Device Management), including basic
E1.20 and extended E1.37 RDM parameters.
An RDM-capable Wireless Solution rf card must be installed to access
RDM features via wireless. At the time of this writing, most W-DIM
devices in the field are not equipped with RDM-capable cards.
RC4 LumenDim4 User Manual
Statements of Conformity
This is a preliminary user manual. Comprehensive conformity statements are
currently being prepared. All conformity requirements have been met, and the
W-DIM4 may be used virtually anywhere in the world.
FCC Statement
Wireless Solution OEM RF cards are FCC listed and approved. Contact RC4
Wireless for additional information.
Industry Canada Compliance Statement
Wireless Solution OEM RF cards are IC approved. Contact RC4 Wireless for
additional information.
EC
W-DIM4 devices for the European market are manufactured using a lead-free
process and conform with all EC requirements.
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RC4 LumenDim4 User Manual
Disclaimers
WIRING AND INSTALLATION OF BATTERIES, DIMMERS, AND LOADS
MUST BE IN ACCORDANCE WITH APPLICABLE LOCAL AND NATIONAL
ELECTRICAL CODES.
Not for Use Where Human Safety May Be At Risk
RC4 Wireless accepts no liability for direct, indirect, or consequential
damages resulting from the use of any RC4 Wireless product or group of
products. RC4 Wireless does not guarantee the suitability of any product for any
purpose; user assumes all risk. RC4 dimmers must be used strictly in accordance
with manufacturer's instructions and cannot be used for unsupervised operation.
RC4 Wireless products must be installed and operated only by qualified
technicians and should be inspected and tested on a regular basis to ensure
proper operation.
Not for Control of Pyrotechnical Devices
RC4 Wireless dimmers should not be used to control pyrotechnics of any
kind. A brief output surge during power-up could trigger these devices. RC4
Wireless accepts no liability if RC4 equipment is used for this or any other
purpose.
Product Safety
RC4 dimmers are capable of controlling very large currents at up to 30VDC.
Dimmers, wiring, and connectors should not be allowed to operate at dangerous
temperatures. Appropriately sized wire and connectors must be used, along with
suitable ventilation and external fuses rated for the load being operated.
RC4 Wireless devices and equipment are operated at the user’s own risk
and RC4 Wireless accepts no liability, either direct or consequential, as a
result of using this equipment.
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RC4 LumenDim4 User Manual
Contents
Overview ................................................................................................................................... 1
Statements of Conformity ............................................................................................................ 2
FCC Statement ......................................................................................................................... 2
Industry Canada Compliance Statement ...................................................................................... 2
EC .......................................................................................................................................... 2
Disclaimers ................................................................................................................................ 3
Not for Use Where Human Safety May Be At Risk ......................................................................... 3
Not for Control of Pyrotechnical Devices ...................................................................................... 3
Product Safety ......................................................................................................................... 3
Contents ....................................................................................................................................... 4
W-DIM4 Hook Up ........................................................................................................................ 5
DMX Connections ........................................................................................................................ 6
USB Connections ......................................................................................................................... 7
Controls, Indicators, and Settings ................................................................................................. 7
Link W-DIM4 to Your Transmitter ............................................................................................... 9
To Unlink ................................................................................................................................. 9
LEDs ..................................................................................................................................... 10
COP (Computer Operating Properly) Blink Patterns ..................................................................... 11
W-DIM4 Dimmer Test Mode ........................................................................................................ 12
Bump Buttons ........................................................................................................................ 12
Assigning DMX Channel and Dimmer Curves ................................................................................. 13
More About Dimmer Curves ........................................................................................................ 14
ISL and LEDs ......................................................................................................................... 14
ISL Slow: The Beauty of RC4 Digital Persistence......................................................................... 14
Linear and Incandescent Lamps ............................................................................................... 15
Non-Dim ............................................................................................................................... 15
Mixing ISL and Linear Outputs ................................................................................................. 15
Selecting the Right Dimmer Curve ............................................................................................ 15
Circuit Protection, Faults, and Errors............................................................................................ 16
Voltage ................................................................................................................................. 16
Temperature .......................................................................................................................... 16
Current ................................................................................................................................. 16
RDM (Remote Device Management) Functionality .......................................................................... 17
W-DIM4 Specifications ............................................................................................................... 17
RF ........................................................................................................................................ 18
Dimmers ............................................................................................................................... 18
How to Reach Us ....................................................................................................................... 19
Physical Address .................................................................................................................... 19
Telephone / Fax ..................................................................................................................... 19
Internet ................................................................................................................................ 19
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RC4 LumenDim4 User Manual
W-DIM4 Hook Up
W-DIM4 is easy to connect and use. All wiring is done with Anderson Powerpole
connectors. Input power, usually from 12V rechargeable batteries, enters on the
RED+ and BLACK- terminals. Each of the 4 dimmer outputs has a YELLOW+
and GRAY- terminal for direct connection to load devices.
The W-DIM4 will operate with input voltages from 6V to 30VDC. It is important
that the supply voltage does not drop below 6V while dimmers are driving their
full load. This can result in output flicker or oscillation: the logic comes on,
activates the load, the supply voltage drops under load, the logic goes off, the
load is turned off, the voltage rises, the logic comes back on… and so on.
Maximum non-continuous output power for each dimmer channel is 180W. Avoid
short circuits, which may damage the dimmer circuitry. Ensure adequate
ventilation around the W-DIM4 to ensure dimmer heat can dissipate; avoid
blocking the ventilation slots on the side and top of the unit. Prolonged operation
at high temperatures can deform the case and damage the dimmer circuitry.
Duty cycle influences maximum power. Given the ratings of the components, a
250W load could be handled by one channel for a brief time. But if a load is to be
on for a significant period, then a draw of 150W or less is recommended.
A fuse should always be installed at the battery terminals, and in each
individual dimmer circuit. When operating all 4 dimmers with a 125W load at
12V, the total current draw from the battery is 41.5A. A 40A or 50A fuse should
be used, positioned as close to the battery terminals as possible. A 15A fuse can
be used on each dimmer output. When loads are smaller, fuses with lower
capacities should be used.
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RC4 LumenDim4 User Manual
The gauge of wire used should be appropriate for the rating of the
associated fuse. Follow local electrical codes, and never allow wire to run
hotter than you can comfortably hold for several seconds.
Anderson Pins, Shells, Crimping Tool
More information about Anderson connectors is available at
http://www.andersonpower.com/products/singlepole-connectors.html.
DMX Connections
The W-DIM4 features a 3.5mm 3-conductor “headphone” connector to deliver
DMX data directly from the W-DMXTM rf receiver. With an appropriate adaptor
cable, this port can be used to directly drive DMX devices. It can also be used for
RF card firmware updates.
Connections are:
Sleeve = GND (DMX XLR pin 1)
Ring = DMXA (DMX XLR pin 3)
Tip = DMXB (DMX XLR pin 2)
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RC4 LumenDim4 User Manual
USB Connections
The USB port on the W-DIM4 is no longer supported. Monitoring and remote
configuration features are now accessed via industry-standard RDM (DMX
Remote Device Management).
[The remainder of this page is intentionally blank.]
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RC4 LumenDim4 User Manual
Controls, Indicators, and Settings
All W-DIM4 pushbuttons and indicators are recessed under holes in the
case. Each dimmer channel has a pushbutton, marked A, B, C, and D, and an
LED power output indicator positioned directly below each dimmer button. There
is also a Shift Func: Set Chan button with the COP (Computer Operating
Properly) indicator below it, and an RF Sync/Disconnect button with the RF LINK
indicator below it.
Pushbuttons are marked on the W-DIM4 label with a triangle pointer. Use a
bent paperclip, needle, or other thin pointer to operate these buttons.
Other holes are LED indicators. DO NOT PUSH ANYTHING INTO THESE HOLES.
Doing so may damage the unit.
The RF Sync button works the same way as the Connect or Link button on any
W-DMXTM device. Use this button to link the W-DIM4 with your transmitter.
Below the RF Sync button is the RF LINK indicator, which is on, off, or blinking
depending on the W-DMXTM mode. See Wireless Solution W-DMXTM
documentation for additional information.
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RC4 LumenDim4 User Manual
Link W-DIM4 to Your Transmitter
1. Ensure antennas are connected to all devices.
2. Power on the transmitter and W-DIM4. Ensure that the RF indicator is off
on all receivers (use the Unlink procedure if necessary).
3. On the transmitter, press and release the FUNCTION button. The
transmitter will search (for a period of ten seconds) for unlinked receivers.
The W-DIM4 RF indicator will flash.
4. While the RF indicator is blinking, press and release the RF Sync button on
the W-DIM4. At the end of the transmitter search period, the W-DIM4
will be linked to the transmitter and the RF indicator will be on. If DMX
data is present, the DMX indicator will also be on.
To Unlink
To unlink the W-DIM4: Press and hold the RF Sync/Disconnect button for
several second. The RF indicator will go off when it unlinks.
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RC4 LumenDim4 User Manual
LEDs
The red power indicator is at the far left below the DMX miniplug. It denotes
5V power on the W-DIM4 logic board. This indicator should always be lit when
the unit is powered on.
Beside the power indicator is the yellow DMX indicator. It is below and to the
right of the DMX miniplug. It is on when the internal W-DMXTM receiver board is
generating valid DMX data packets. This indicator will be off if the W-DMX
receiver is not connected with a transmitter, or if there is no DMX data going into
the connected transmitter.
Next is the blue RF LINK indicator, which is directly below the RF
Sync/Disconnect pushbutton.
The green COP (Computer Operating Properly) indicator is located below
the Func Shift: Set Chan button.
The DimA, DimB, DimC, and DimD indicators are driven by actual power at the
output of each dimmer. They are positioned below each associated dimmer Set
button marked A, B, C, and D.
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RC4 LumenDim4 User Manual
COP (Computer Operating Properly) Blink Patterns
The COP indicator blinks slowly to indicate normal operation.
It will blink rapidly when an RDM Identify command is received, allowing this
particular unit to be found in a complex RDM system.
[The remainder of this page is intentionally blank.]
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RC4 LumenDim4 User Manual
W-DIM4 Dimmer Test Mode
Bump Buttons
The button for each dimmer will momentarily turn the dimmer on at 75% while
pressed. The associated dimmer indicator (Dim A – D) will come on, along with
the connected load. Each dimmer indicator is immediately below the associated
dimmer bump button. Use these bump buttons and indicators to check wiring,
connections, and lamps.
Dimmer bump buttons can be used to test dimmers and loads,
even when no transmitter is connected.
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RC4 LumenDim4 User Manual
Assigning DMX Channel and Dimmer Curves
Channel setup requires a W-DMXTM (or compatible) transmitter, and a DMX data
source. To assign DMX channels and dimmer curves using the hardware
pushbuttons on the W-DIM4, you must be able to bring up one DMX channel at
a time to a specific level.
A portable Goddard DMXter, Fleenor Gizmo, BIC Pocket Console DMX or
other similar device can be used if your regular console is inconvenient
for this purpose.
You need two small pointer tools. Bent paperclips are ideal. Two recessed
buttons must be pressed simultaneously to change a DMX channel assignment.
When you press the appropriate pair of buttons on the W-DIM4, it determines
the lowest channel that is currently on, and what level it is at. That channel can
be assigned to any dimmer(s), and the level of the channel determines which
dimmer curve will be used.
Here is the procedure:
1. Zero all DMX channels.
1. Bring up the level of a single channel you wish to assign to a DMX4dim
dimmer. This is the channel you will be assigning to the dimmer. The
level you use determines the dimmer curve that will be assigned:
Non-dim:
100% (75% or higher)
Linear dimming:
66% (50% to 74%)
Inverse-square-law (ISL) with Smoothing: 33% (25% to 49%)
2. With the desired channel up at the transmitter, go to the W-DIM4
receiver-dimmer. Press and HOLD the Func Shift: Set Chan button while
momentarily pressing the button for the dimmer you wish to assign. That
is, the A, B, C, or D button. For example, to assign the currently active
DMX channel to dimmer C, hold Func Shift and tap the C button. The
dimmer will come on when you press the dimmer button, and is now
assigned and responding to the selected DMX channel. Again, note that
the level of the channel determines the dimmer curve use by W-DIM4 for
that dimmer output.
The W-DIM4 will remember the channel
assignments and dimmer curves until
you decide to change them. Each
channel can have a completely unique
dimmer channel and curve.
It’s easiest to set channels using two
hands.
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RC4 LumenDim4 User Manual
More About Dimmer Curves
ISL and LEDs
W-DIM4 pwm dimmers are capable of very high resolution, making them ideal
for smoothly dimming LEDs. To look smooth to the human eye, LEDs must be
dimmed with an Inverse Square Law (ISL) curve, demanding very small changes
in level at the bottom of the curve. At maximum resolution, W-DIM4 can deliver
ISL dimming with 65,536 steps (16 bit resolution), so a single step change
represents 0.0015% of full level. Compare this to standard linear DMX dimmers
with 256 steps that each represent 0.39% of full level.
In ISL mode, W-DIM4 updates pwm levels at a default frequency of 600 times
per second (600 Hz). Compare this to the 60 Hz power line driving conventional
fixtures. This speed is fast enough to avoid strobing and shimmering that is
sometimes evident using other less sophisticated dimmers.
The disadvantage of updating at 600 Hz is that it can be audible. If an
incandescent lamp is used with the ISL curve, the filament will noticeably “sing”.
LEDs are solid state – no moving parts – so they do not sing.
Using RDM (DMX Remote Device Management), parameters are available for
pwm frequency (up to several kHz), and smoothing rate (RC4 Digital
Persistence).
ISL Smoothing: The Beauty of RC4 Digital Persistence
Because LEDs have no inherent filament persistence and respond quickly to
changes in power level, low resolution dimming (with a small number of steps)
results in noticeable jumps in LED brightness, particularly when viewed
peripherally.
RC4 Digital Persistence smoothing is provided with the ISL curve. Smoothing
makes use of the high-resolution of RC4 dimmers by gliding through all available
steps. Although DMX channels provide a range of only 256 steps (0 – 255),
having a higher resolution at the dimmer ensures accuracy at the bottom of the
ISL curve where changes in power level are very small.
Be default, the ISL curve provides a moderate glide time to emulate the filament
of a typical MR11 lamp.
Using RDM (DMX Remote Device Management), parameters are available for
pwm frequency (up to several kHz), and a range of smoothing rates (RC4 Digital
Persistence).
If you are using Red or other high-resolution video cameras, use RDM to
set the pwm frequency at the highest frequency you find necessary to
avoid visible flicker. The W-DIM4 pwm engine is capable of frequencies
far higher than required for flicker free capture with a Red camera.
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RC4 LumenDim4 User Manual
Linear and Incandescent Lamps
When a linear dimming curve is used with an incandescent lamp, low lamp noise
and high electrical efficiency are achieved by using a low pwm frequency of 75
Hz. This is similar to 50/60 Hz AC dimmers.
Non-Dim
Some loads, particularly relays, solenoids, and DC-AC power inverters, should be
driven with simple on/off non-dim power. The non-dim curve ensures this, and
includes level hysteresis: the source dmx level must rise about 53% to turn on,
and drop below 47% to turn off. Thus, the dimmer will not oscillate on and off if
the source signal is jittery and/or rises and falls slowly.
Mixing ISL and Linear Outputs
Each individual W-DIM4 dimmer is independently configurable. Any combination
of ISL, Linear, and Non-Dim outputs may be used simultaneously, and each can
be configured with independent DMX channel, curve, pwm frequency, and RC4
Digital Persistence smoothing rate.
Selecting the Right Dimmer Curve
When setting dimmer channels and curves with the W-DIM4 pushbuttons,
channel level ranges provide the following curves:
Dimmer Curve
Non-Dim
Linear
ISL Slow, RC4
Digital Persistence
Level Percentage
100% (70%+)
66% (50% - 74%)
33% (25% - 49%)
Level Dec (0-255)
255 (192+)
160 (128-191)
80 (64-127)
Level in Hex (0-FF)
0xFF (0xC0 or higher)
0xA0 (0x80-0xBF)
0x50 (0x40-0x7F)
Use ISL for LED devices. This curve provides RC4 Digital Persistence to emulate
the filament persistence of a typical MR11 incandescent lamp.
Linear is ideal for incandescent loads, including MR16s and MR11s.
Non-Dim is intended for use with relays, solenoids, air brakes, and other on/off
devices. Hysteresis ensures there will be no noise or oscillation, even if the
source DMX level is slowly changing or is noisy. The DMX level must rise above
54% (dec 138, hex 0x8A) to turn on. Then, the level must fall below 46% (dec
117, hex 0x75) to turn off.
Use RDM (DMX Remote Device Management) E1.37 parameters for pwm
frequency (up to several kHz), and a range of smoothing rates (RC4 Digital
Persistence). Use slow smoothing to make large LED look smoother; use faster
smoothing to keep blinks, flashes, and strobing looking more immediate and eyecatching.
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RC4 LumenDim4 User Manual
Circuit Protection, Faults, and Errors
To avoid damage to internal electronics, the W-DIM4 constantly monitors
voltage, temperature and current. In the event of a fault condition, dimmer
outputs may disable themselves.
Voltage
The W-DIM4 monitors the power supply for both over- and under-voltage.
Voltage higher than 31VDC will cause all dimmers to shut down until voltage
drops back down below 30V.
RDM sensing provides access to the current voltage, as well as the highest and
lowest voltages detected since the last device power-up.
Allowing 12V lead-acid batteries to drop below 10VDC under load will cause
permanent battery damage – they will never fully recover their maximum
capacity.
Temperature
A temperature sensor measures the temperature of circuit-board traces carrying
high currents to the four W-DIM4 dimmers. If these traces exceed 240F
(degrees Fahrenheit) all dimmer outputs will be disabled until the temperature
drops below 210F.
RDM sensing provides access to the current temperature, as well as the highest
and lowest temperatures detected since the last device power-up.
Current
Current flow is monitored individually for each W-DIM4 dimmer. If current rises
above 20A, the dimmer is disabled and turned off. A disabled dimmer can be
reset by either:
1. Turning the W-DIM4 off and back on, to reset the unit.
2. Clearing the DMX level driving the disabled dimmer. When the DMX level
drops to zero, the over-current error is cleared.
RDM sensing provides access an immediate current reading, as well as the
highest and lowest current draw detected since the last device power-up.
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RC4 LumenDim4 User Manual
RDM (Remote Device Management) Functionality
Wireless Solution W-DMXTM rf modules used in W-DIM4 units are RDM capable.
RDM features supported by the radio itself are available immediately, regardless
of the firmware version in the W-DIM4.
The microprocessor used in the W-DIM4 is a high-speed and powerful DSP
(digital signal processor). It provides extensive RDM support without impacting
simultaneous real-time dimmer performance.
The W-DIM4 appears as an RDM Root Device, and 4 Subdevices.
RDM Root Device Parameters Supported Include:
E120_PRODUCT_DETAIL_ID_LIST
E120_DEVICE_MODEL_DESCRIPTION
E120_MANUFACTURER_LABEL
E120_DEVICE_LABEL
E137_1_DMX_BLOCK_ADDRESS
E120_SENSOR_DEFINITION
E120_SENSOR_VALUE
E137_1_IDENTIFY_MODE
E120_FACTORY_DEFAULTS
E120_RESET_DEVICE
RDM Subdevice Parameters Supported Include:
E120_DEVICE_LABEL
E137_1_CURVE
E137_1_CURVE_DESCRIPTION
E137_1_OUTPUT_RESPONSE_TIME
E137_1_OUTPUT_RESPONSE_TIME_DESCRIPTION
E137_1_MODULATION_FREQUENCY
E137_1_MODULATION_FREQUENCY_DESCRIPTION
E120_SENSOR_DEFINITION
E120_SENSOR_VALUE
Mandatory RDM Parameters may not be listed above, but are fully supported to
ensure compliance with RDM specifications.
CURVE selects Non-Dim, Linear, or ISL dimming curves.
OUTPUT_RESPONSE_TIME adjusts RC4 Digital Persistence rate with a range of 8
settings from OFF (No Smoothing) to Very Slow.
MODULATION_FREQUENCY selects dimmer pwm frequency over a range of
options.
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RC4 LumenDim4 User Manual
W-DIM4 Specifications
RF
Please see Wireless Solution W-DMXTM RF specifications for complete details.
Dimmers
Power Input:
6VDC – 30VDC (12V typical), 90 mA minimum, plus
requirements of connected dimmer loads.
Dimmer Outputs:
4 individual dimmer channels, each with independently
assignable DMX channel and dimmer curve.
PWM Resolution:
PWM Frequency (Linear Curve):
PWM Frequency (ISL Curve):
65,536 steps (16-bit)
75 Hz
600 Hz
Dimmer Technology:
MOSFET PWM (pulse-widthmodulation)
Absolute Maximum Output Current per Dimmer:
42A (pulse only)
Absolute Maximum Input Voltage:
31VDC
Typical Continuous Output Current per Dimmer:
12.5A
Typical Maximum Continuous Output Power:
Maximum Total Output Power (4 Dimmers Combined)
150W per channel
500W total *
* RELIABLE TOTAL OUTPUT POWER IS LIMITED BY DUTY CYCLE,
AMBIENT TEMPERATURE, AND CIRCUIT-BOARD TRACE WIDTHS. High
ambient temperatures and blocked ventilation slots, among other things, will
reduce the maximum total output power that can be sustained before a thermal
shutdown occurs.
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RC4 LumenDim4 User Manual
How to Reach Us
Physical Address
RC4 Wireless is a registered trade-name of Soundsculpture Incorporated
Soundsculpture Incorporated
13604 Heathwood Court
Raleigh, NC, 27615
USA
Telephone / Fax
Toll Free Office 1-866-258-4577 (North America only)
Toll Free Fax 1-866-237-6641 (North America only)
London, UK, +44 (0)20 3289 8765
USA Office 919-229-9950
USA Emergency Cellular 919-400-3961
Internet
Email [email protected]
Skype theatrewireless
Website www.theatrewireless.com
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RC4 LumenDim4 User Manual
RC4, RC4Wireless, W-DIM4 and the RC4 logo
are trademarks of Soundsculpture Incorporated.
W-DIM4 RDM User Manual R1.8 Jun-2013 JDS
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