City Theatrical QolorFLEX 5750 User manual

QolorFLEX® 4x10A Dimmer
(5750)
User’s Manual
Rev 1.03
© 2019 City Theatrical, Inc.

2
System Compliance Information .......................................................................................3
Safety Notices, Ratings and Power Requirements...........................................................3
Introduction..........................................................................................................................3
4x10A Front View.................................................................................................................4
Setting up the QolorFLEX® 4x10A Dimmer..........................................................................5
Installation............................................................................................................................5
Power Connections .............................................................................................................5
Dimmer Output Connections..............................................................................................5
Over-current Protection ......................................................................................................5
DMX512 Input / Output ........................................................................................................5
0-10V Input ...........................................................................................................................5
User interface.......................................................................................................................5
4x10A Dimmer RDM Parameter IDs ...................................................................................6
DMX addressing...................................................................................................................7
Selecting Dimmer Curves ...................................................................................................8
Smoothing (Dimmer Response Time)................................................................................9
Using 4x10A Dimmer with CTI Flicker Candles ................................................................9
Appendix A: Using QolorFLEX series Dimmers with LED Tape.....................................10
How much Tape can I use with one 4x10A Dimmer?.....................................................10
Connecting Single Color Tape .........................................................................................10
Connecting Three Color (RGB) or Four Color (RGBW, RGBA) LED Tape....................11
4x10A Dimmer Specifications.............................................................................................11
DMX Control Features.......................................................................................................11
Mechanical .........................................................................................................................11
Electronic/ Functional Features .......................................................................................11
Other Features...................................................................................................................11
Compliance:.......................................................................................................................12

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System Compliance Information
The QolorFLEX® 4x10A Dimmer is CE Certified.
Standards applied:
EN 55203-1: 2009
EN 55203-2: 2009
EN 301 489-1 V1.8.1
EN 301 489-3 V1.4.1
EN 60950-1:2006 / A1:2010
FCC Rules, Part 15, Subpart B, Sections 15.107 and 15.109
Products Conform to CE Marking Directive 93/68/EEC
All models are RoHS compliant
Safety Notices, Ratings and Power Requirements
Please read this entire manual before using your new equipment. Please keep the manual in a safe place
so you can refer to it in the future as required.
The QolorFLEX 4x10A Dimmer is intended for use only by qualified professionals. Connection,
installation and hanging of this equipment must be performed in accordance with all pertinent local,
regional and national safety codes and regulations.
The QolorFLEX 4x10A Dimmer is intended for indoor use.
The unit enclosure is rated NEMA 1 / IP20.
Rated operating voltage; 100~240 VAC, 10A max
Maximum operating temperature: 0°C - 40°C.
Introduction
Thank you for using City Theatrical’s QolorFLEX 4x10A Dimmer. The QolorFLEX 4x10A
Dimmer represents new benchmarks for control features and affordability in a dimmer for use
with LEDs, incandescent fixtures, relays, or other devices.
The QolorFLEX 4x10A Dimmer features include:
•Built-in 600W power supply.
•Rotary DMX selector switches.
•Bump buttons
•Channel output indicator lights.
•DMX termination switch.
•DMX present light.
•Status light
•Replaceable input fuse.
•Fuseless outputs.
•XLR DMX512-A and RJ-45 DMX512-A Input/Pass-Thru (Only one input, and one output
may be used at the same time).
•RDM responder functions.
•0-10V control input.

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•Detachable terminal block outputs
•Five TV/Film modes
•Six smoothing rates
•NEMA 1 / IP 20 rated enclosure (indoor use)
•Four channel DC Dimmer with two outputs per channel (10 Amps per channel).
•FCC and CE Certified
•Fan Cooled
•Attached power cord
•Mounting
Every effort has been made to anticipate your questions in this manual, but if you have any
questions that are not answered here, or you want to discuss a special application, please feel
free to contact us directly at City Theatrical.
QolorFLEX® 4x10A Front View

5
Setting up the QolorFLEX® 4x10A Dimmer
Installation
Install the QolorFLEX 4x10A Dimmer in a suitable location, following the instructions below.
Power Connections
Connect 100 - 240VAC power to the Dimmer using the front facing power input. The Input power
is fed to an internal power supply that is protected by the 10A T 250V fuse located next to the
power input.
Dimmer Output Connections
The four dimmer channels are labeled “A”, “B”, “C”, and “D”. Each channel supports up to two
load outputs. If the QolorFLEX 4x10A Dimmer has terminal blocks, connect +VDC to the + (plus)
Terminal,and – (minus) VDC to the – Terminal. These terminals will accommodate up to 14
AWG / 1.5mm2 wire.
Overcurrent Protection
The QolorFLEX 4x10A Dimmer is provided with an external 10A 250V fuse for AC input
protection. This fuse is user serviceable. Each dimmer output is provided with fuseless hardware-
based overcurrent protection that functions automatically when an overcurrent condition exists.
When overload condition is removed, normal operation resumes.
DMX512 Input / Output / Termination
This is a PLASA/ANSI compliant DMX512-A Input / Output. The QolorFLEX 4x10A Dimmer
supports five-pin XLR DMX512-A input as well as RJ-45 input which is a lower cost alternative to
DMX cable. Once connected, the DMX start address can be changed using the three rotary
switches on the front panel of the unit. A single position DIP switch is provided as a DMX
termination switch if the unit is at the end of the DMX line. The Termination switch is located at
the far right of the DMX Address DIP Switch array and is marked “T”. Only one DMX input and
one DMX output per 4x10A is permitted.
0-10V Input
The QolorFLEX 4x10A Dimmer supports 0-10V input control. If your 0-10V control supplies
voltage, leave the 10V DIP switch in the OFF position. Otherwise put the DIP switch in the ON
position so the QolorFLEX 4x10A Dimmer supplies the current to your device. This device is set
so the highest input level takes precedence to control the output on the load. Make sure to leave
the 10V DIP switch in the off position if you are not using this function. Otherwise your load will
be set to maximum because there will be nothing pulling down the current being supplied on the
0-10V screw terminals.
User interface
The QolorFLEX 4x10A Dimmer is provided with a set of switches and LED indicators for
configuration and status monitoring:

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1. DMX Present LED: Indicates DMX512 Data is being received, blinks if no data is
present.
2. Dimmer Pilot Light LEDs: Fade up and down with the dimmer to permit easy monitoring
and testing
3. Status LED: Indicates the following error/fault conditions:
Condition BlinkPatternBlinksfollowedby1sec
pause
UNDERVOLTAGE...1
INVALIDDMXADDRESS ......2
OUTPUTOVERCURRENT ….….….4
INPUTOVERCURRENT …..…..…..5
OVERTEMP ………………6
OVERVOLTAGE …….…….…….7
OUTPUTSHORTCIRCUIT ……..……..……..8
4. Bump Buttons: A bump button is provided for each channel output.
5. Curve Selection DIP Switch (eight position): Select the dimming curve for each of the
individual dimmer outputs in the unit.(See page 8)
6. MOD (Mode) Selection DIP Switch (two position): Select the PWM modulation
frequency for dimmer channels set to the LED Curve. (See page 8)
7. 10V Dip Switch (one position): Set this to OFF if this function is not in use or if your
device provides the voltage for 0-10V control. Otherwise set this to ON.
8. R DIP Switch (one position): Setting this reset switch to ON resets the Dimmer and
holds in reset until set to OFF.
9. T Dip Switch (one position): Setting this termination switch to ON connects end-of-line
DMX termination.
QolorFLEX® 4x10A Dimmer RDM Parameter IDs
The QolorFLEX 4x10A Dimmer supports all the mandatory RDM Parameter IDs (PIDs)
plus the following PIDs:
PROXIED_DEVICE_COUNT
PROXIED_DEVICES_ENHANCED
SUPPORTED_PARAMETERS
PARAMETER_DESCRIPTION
DEVICE_MODEL_DESCRIPTION
MANUFACTURER_LABEL
DEVICE_LABEL
FACTORY_D EFAULTS
SOFTWARE_VERSION_LABEL
DMX_BLOCK_ADDRESS
SENSOR_DEFINITION
SENSOR_VALUE
RECORD_SENSORS
OUTPUT_RESPONSE_TIME
OUTPUT_RESPONSE_TIME_DESCRIPTION

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MODULATION_FREQUENCY
MODULATION_FREQUENCY_DESCRIPTION
DMX_START_ADDRESS
SLOT_INFO
SLOT_DESCRIPTION
SENSOR_DEFINITION
SENSOR_VALUE
RECORD_SENSORS
CURVE
CURVE_DESCRIPTION
IDENTIFY_DEVICE
To learn more about RDM, a good place to start is the Wikipedia article on RDM (lighting) at:
http://en.wikipedia.org/wiki/RDM_(lighting)
DMX addressing
Set the starting address for the QolorFLEX® 4x10A Dimmer using the DMX Address rotary
switch. The switches are labeled as 100’s, 10’s, and 1’s. To set the starting address, simply
twist the rotary switches to match the desired starting address,and the remaining three slots
are addressed contiguously. The highest starting address that can be set by the rotary switches
is limited to 509 in the 4x10A Dimmer.
DMX addressing may also be set using RDM. When RDM is used, the individual dimmer
channels may be set independently, and to any DMX address.
Whichever method is used, last takes precedence. The unit maintains the last used setting over
power cycles, and checks on power up to see if switches have been changed while the unit was
off.

8
Selecting Dimmer Curves
The dimming curve can be set individually for each 10A channel output. The QolorFLEX
4x10A Dimmer has an eight position DIP Switch with two positions for each channel output.
Dimmer Switch
1 Switch 2 Switch 3 Switch 4 Switch 5 Switch 6 Switch 7 Switch 8 Function
A
OFF OFF

Normal Dimming, ISL Curve
OFF ON

NON - DIM
ON OFF

Linear Dimming Curve
ON ON

LED Curve
B
OFF OFF

Normal Dimming, ISL Curve
OFF ON

NON - DIM
ON OFF

Linear Dimming Curve
ON ON

LED Curve
C
OFF OFF

Normal Dimming, ISL Curve
OFF ON

NON - DIM
ON OFF

Linear Dimming Curve
ON ON

LED Curve
D

OFF OFF Normal Dimming, ISL Curve

OFF ON NON - DIM

ON OFF Linear Dimming Curve

ON ON LED Curve
The LED Curve is the default mode, and is intended for controlling LEDs but may be used for
other specialized loads.
The LED Curve Modes have been optimized for flicker free performance in TV and Film
applications. All settings have been camera tested with motion picture film and digital cinema
cameras. The settings are different to allow compensation for variations in shutter speed and
shutter angle. A camera test is recommended to confirm the correct setting has been selected.
The ISL (Inverse Square Law) Curve is intended for incandescent lamp dimming and is similar
to a conventional mains-powered lighting dimmer curve. The PWM period for ISL is 60Hz.
The NON-DIM function is intended for relays and other devices requiring switched power
without PWM dimming.
The Linear Curve is a simple linear scale that can be used to drive DC integrators or other
devices where linear response needed. The Linear PWM period is 60Hz.

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Mode Settings
The Mode Settings include TV/Film Mode 1 - 4 which are DIP selectable, and TV/Film
Mode five which is selectable via RDM only using the MODULATION_FREQUENCY RDM
parameter. OFF OFF
TV/Film Mode 1
ON OFF
TV/Film Mode 2
OFF ON
TV/Film Mode 3 (Default)
ON ON
TV/Film Mode 4
The settings are also provided to allow control of other specialized loads (see below). Dimmer
curves and Modes may be set manually using the Dimmer Curve and Mode DIP switches or
using RDM. Whichever method is used last takes precedence. The unit maintains the last
used setting over power cycles, and checks on power up to see if switches have been
changed while the unit was off.
Smoothing (Dimmer Response Time)
When the LED Curve is selected, one of six different smoothing settings can be selected using
RDM. The smoothing setting determines how quickly the dimmer responds to changes in DMX
level. With the fastest smoothing setting (5ms) the dimmer and connected LED loads will
respond immediately to any level change. As longer smoothing settings are selected, the
dimmer and connected LED loads will “ramp” more smoothly between DMX levels, simulating
the delayed response of an incandescent filament lamp. The six Smoothing settings are:
•5ms
•10ms
•50ms
•100ms (default)
•200ms
•400ms
The selected Smoothing setting affects all channels configured with the LED Curve. The default
setting is 100ms. The Smoothing (Dimmer Response Time) setting is selected via RDM using
the DIMMER_RESPONSE_TIME Parameter.
Using 4x10A Dimmer with CTI Flicker Candles
Curve: The Curve must be set to LED, which is both switches1 & 2 set to ON.
Mode: Must be in TV/Film Mode 1, which is both mode switches in off position.

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1. Connect the +VDC circuit to one of the four + output terminals and connect the -VDC
circuit to the accompanying – output terminal.
2. Select the LED Curve for each dimmer channel used.
3. If you wish to change the PWM frequency, use RDM or the MOD DIP switch to select
the frequency desired.
5750 Output Terminals
Note
The 4x10A Dimmer is a constant voltage PWM dimmer and so will work with any size LED load
that is within the Dimmer’s 40A current and 12VDC voltage range. Note that constant voltage
dimmers do not compensate for voltage drop in load wiring so care should be taken to optimize
load wiring designs by minimizing run length, assuring termination quality, and assuring
adequately sized wire is used.
Appendix A: Using QolorFLEX™ Dimmers with LED Tape
The CTI 5700 QolorFLEX™ Dimmers have been optimized for use with 12V LED tape. The
4x10A Dimmer can be used with single color, two color (variable white), three color (RGB), or
four color (RGBW, RGBA) tape.
How much Tape can I use with one QolorFLEX® 4x10A Dimmer?
LED tape load current varies by brand and style. Use the manufacturer’s mA/meter
specification figure to determine your load, and distribute your load to assure no more than 10A
per 4x10A Dimmer. Consult your tape manufacturer for more information.
Connecting Single Color Tape
12 Volt single color tape is provided with a single +VDC circuit and a –VDC circuit.

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Connecting Three Color (RGB) or Four Color (RGBW, RGBA) LED Tape
12 Volt three color LED tape is provided with a single +12VDC circuit and a –VDC circuit for
each color.
1. Connect the +12VDC circuit to any one of the eight + output terminals. The + terminals
are bussed and provide constant voltage. Note that some tape comes pre-wired with
Black wire for the +12VDC circuit while other tape comes pre-wire with White wire.
2. Connect the R, G, and B circuits each to one the eight – output terminals (in the case of
four color tape, connect the A or W circuit to the fourth – output terminal).
–The terminals are the PWM dimmed outputs of the Dimmer. *Note that some tape
comes with the R, G, and B (and A or W) circuits in a different order than others.
3. – Output terminals located on the same channel will be controlled by the same DMX
address.
4. Select the LED Curve for each dimmer channel used.
5. If you wish to change the PWM frequency, use RDM or the MOD DIP switch to select
the frequency desired.
QolorFLEX 4x10A Dimmer Specifications
DMX Control Features
The QolorFLEX 4x10A Dimmer Includes:
•Rotary switches for DMX addressing.
•0-10V input control.
•DMX 5-pin XLR terminals for input/Pass-Thru.
•Ethernet Terminals for DMX In/Pass-Thru.
o*Note: a total of one input and one output may be used per 4x10A.
•Termination switch for end-of line DMX termination.
•RDM Responder functions.
Mechanical
•Rugged NEMA one Aluminum enclosure surface mounting tabs for wall or deck mounting
Electronic/ Functional
Features All units include:
•Bump buttons
•Rotary switch, DMX Addressing
•DIP Switch, Curve Selection (four choices)
•DIP Switch, LED TV and Film Modes (five choices)
•DIP Switch, 0-10V Input Control Enable (on-off)
•DIP Switch, DMX Termination (on-off)
•LED indicators:
oDimmer pilot lights (one for each channel)
oDMX (data present)
oStatus
•Fan cooled
Other Features
All units include:
•Four dimmer output channels with two outputs per channel.
oMax output per dimmer channel 10A ( shared betweentwo outputs).
oscrew terminals

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•Max total output per device 40A
•Fully RDM enabled
•Individual DMX addresses
•100 - 240 VAC input
•10A T 250V fuse for protection
•Internal power supply (12V, 40A)
•Self healing over current protection
•Individually protected against over-
temperature
•Individual bump buttons
•PWM resolution 16-bit
•Dimming Curves
oLinear, 60Hz
oISL, 60Hz
oNon-Dim
•LED Features:
oSix variable LED smoothing rates
oFive TV/Film Modes
Compliance:
•ETL Listed to UL508-A
•CE Certified
oEmissions/
Immunity
oElectrical Safety
oWEEE
oSustainability
oRoHS Compliant
CTI Part #s: 5750 QolorFLEX 4x10A Dimmer
Power: 100 - 240 VAC 10A Max Power Input
Weight: 6.7 lbs. (3 kg)
Dimensions: 12.25” (L) x 8.00” (W) x 4.062” (H) 311mm (L) x 203mm (W) x 103mm (H)