Wybron NEXERA 2560 User manual

Color Mixing Luminaire

2
TABLE OF CONTENTS
Product Modification Warning ........................................................................................3
Important Safety Instructions .........................................................................................3
Quick Start........................................................................................................................5
Nexera Fixture Specifications.........................................................................................6
Model 2560: Wash - Tungsten.....................................................................................6
Model 2570: Profile - Tungsten....................................................................................7
Model 2580: Wash – CDM...........................................................................................8
Model 2600: Profile – CDM..........................................................................................9
Fixture Setup and Configuration ..................................................................................10
Installing the Lamp.....................................................................................................10
Lamp Optimization.....................................................................................................11
Mounting and Adjusting the Fixtures..........................................................................11
Attaching Accessories to the Front Accessory Holder ...............................................12
Connecting AC Power ...............................................................................................12
Adjusting Field Angle.................................................................................................12
Nexera and the RAM system.....................................................................................13
Head-Feet Restrictions ..............................................................................................14
Head-Feet Example...................................................................................................14
DMX Setup and Operation.............................................................................................15
Controls and Indicators..............................................................................................15
Menu Tree and Navigation ........................................................................................16
Display Messages......................................................................................................17
Service ............................................................................................................................18
Lamp Replacement....................................................................................................18
Cleaning the Reflector ...............................................................................................18
Cleaning the Color Module ........................................................................................19
Cleaning the Lenses..................................................................................................19
Replacing Fuses........................................................................................................20
Error Messages / Troubleshooting.............................................................................20
Reprogramming via AVR ISP port .............................................................................21
Appendix 1 – Color Table ..............................................................................................25
Warranty Information.....................................................................................................27

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SAVE THESE INSTRUCTIONS
READ AND FOLLOW ALL
INSTRUCTIONS
This manual gives step-by-step instructions for preparation,
setup, and operation of the NexeraTM Luminaire.
There is a potential risk of fire, electric shock or injury to
persons if the product is not used as instructed.
The Nexera Luminaire is to be used in an indoor environment
only and is not intended for residential use.
Product Modification Warning
Wybron, Inc. products are designed and manufactured to meet the requirements
of United States and International safety standards. Modifications to the products
could affect safety and render the product non-compliant to relevant safety
standards.
Important Safety Instructions
This product is for professional use only. It is not for
residential use.
Read this manual before powering or installing the fixture. Follow the safety
precautions and observe all warnings in this manual and on the fixture. If you
have questions about how to operate the fixture safely, please contact your
Wybron dealer or call Wybron directly at 1-800-624-0146.

4
To protect yourself and others from electric shock:
•If the Nexera fixture was received without an AC cord plug attached, attach the
appropriate lamp cord plug according to the following code:
green – ground/earth
gray – neutral
gray – line
•Disconnect the fixture from AC power before removing or installing the lamp, fuses, or
any electronic parts.
•Always ground (earth) the fixture electrically.
•Use a good source of AC power that complies with local building and electrical codes and
has both overload and ground fault protection.
•Nexera fixtures and RAM Power Supplies are suitable for dry locations only. Do not
expose the fixture or power supply to rain or moisture.
•Refer all service to a Wybron certified service technician.
To protect yourself and others from burns and fire:
•Do not operate the fixture with missing or damaged lenses or reflector.
•When replacing the lamp, allow the fixture to cool for at least 5 minutes before removing
the lamp holder from the fixture.
•Do not stare directly into the light. Never look at an exposed lamp while it is illuminated.
•Replace the lamp if it becomes damaged or thermally deformed.
•A hot lamp may be an explosion hazard. Do not open the fixture for 5 minutes after power
has been disconnected. Wear eye and hand protection when re-lamping.
•Do not use any lamps other than those approved for use by Wybron and listed in this
manual. Use of any other lamp may be hazardous and may void the warranty.
•Keep all combustible materials (fabric, wood, paper, etc) at least 1 meter (39 inches)
away from the fixture. Keep flammable materials well away from the fixture.
•Do not illuminate surfaces within 1 meter (39 inches) of the fixture.
•Nexera fixtures are convection cooled. Provide a minimum clearance of 0.1 meter (4
inches) around all air vents.
•The exterior of the fixture can reach temperatures up to 177ºC (350ºF). Allow the fixture
to cool before handling.
•Do not modify the fixture or install any parts other than genuine Wybron replacement
parts.
•Do not operate the fixture if the ambient temperature exceeds 40º C (104ºF).
To protect yourself and others from injury due to falls:
•When suspending the fixture above ground level, verify that the structure can hold at
least 10 times the weight of all installed devices.
•Use a secondary safety cable when mounting this fixture.
•Verify that all external accessories and rigging hardware are securely fastened and use
an approved means of secondary attachment such as a safety cable.
•Always hang the Nexera fixture with the front accessory retaining clip in the locked
position.
•Block access below the work area whenever installing or removing the fixture.

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Introduction
NexeraTM is Wybron's family of affordable dichroic CMY color mixing luminaires expressly
designed to complement your current equipment. Nexera wash lights and profile spots operate
just like the conventional theatrical fixtures you're using already, but with the addition of Wybron
CMY dichroic color mixing.
Nexera fixtures are offered with the Philips®GLC/GLA 575W compact tungsten sources (the
preferred source for theater and television) or CDM lamps, and provide superb light output and
beam uniformity. All Nexera fixtures are convection cooled and servo-driven, utilizing no fans for
silent operation. The patent-pending Wybron CMY color mixing module produces a wide color
palette, featuring an exceptional range of control over the most subtle theatrical colors like
bastard amber, light pink and no-color blue, all with seamless transitions between colors. Color
consistency over time is assured, because the glass filters will not fade with heat or age. Each
unit requires 3 DMX channels, thus they are easy to use and patch, even on the simplest of
control consoles. The chosen color is easily selected using any two of the three DMX control
channels. Color fades are gracefully accomplished with your choice of color path from one color
to the next. The Wybron CMY dichroic color-mixing module also allows designers to make color
choices and changes in real time.
All Nexera fixtures share a common lamp housing, borosilicate cold mirror reflector and Wybron
CMY dichroic color-mixing module for ease of service and flexibility. The Wybron CMY module
offers a menu display for DMX addressing and operational info. The Nexera has a front
accessory frame, allowing for standard sized accessories like gel frames, snoots, barn doors and
donuts to be fitted to the fixtures. The profiles accept standard M size patterns and accessories.
Quick Start
1. Connect the Equipment
a. Install the C-clamp onto the yoke using the yoke bolt.
b. Mount luminaire on mounting pipe using the C-clamp and safety cable.
c. Connect Nexera to the RAM Power Supply by using the 4-pin Power / Data
cable.
d. Connect the RAM Power Supply to a DMX source with a 5-pin cable.
e. Connect the RAM Power Supply to a 115/230V AC power.
f. Connect the Nexera to AC power (115V or 230V depending upon lamp installed.)
Metal parts of the lamp and reflector housing get hot!
2. Setup Nexera and Power Supply
a. Set the power supply starting channel to 1 (see power supply manual for
questions).
b. Set the power supply mode to CR2.
c. Set Nexera channel to 1 (Factory default).
d. Set Nexera to low speed color change mode (Factory default).
3. Control Nexera with DMX
a. DMX channel 1 controls Cyan (0% = no color, 100% = full saturation)
b. DMX channel 2 controls Magenta (0% = no color, 100% = full saturation)
c. DMX channel 3 controls Yellow (0% = no color, 100% = full saturation)
d. DMX channel 4 controls Dimming (CDM only, 0%=off, 100%=full on)

6
Nexera Fixture Specifications
Model 2560: Nexera Wash - Tungsten
Dimensions:
Height (with yoke attached): 551.82 mm / 21.73 inches
Width (with yoke attached): 270.64 mm / 10.65 inches
Length (with yoke attached): 482.35 mm / 19.092 inches
Weight: 8.79 kg / 19.38 pounds
Electrical Specifications:
Lamp Power Consumption: 600W max
Lamp Power Input Ratings: 115V, 50/60Hz @ 7A
230V, 50/60Hz @ 2.5A
Environmental Specifications:
Maximum Ambient Temperature: 40ºC / 104ºF
Maximum External Surface Temperature: 177ºC / 350ºF
Minimum Distance to Flammable Objects: 1 meter / 3.28 ft
Minimum Distance to Illuminated Objects: 1 meter / 3.28 ft
Features:
•Precise, tool-free lamp optimization
•Integral safety cable mount on fixture
•Precision milled aluminum construction
•6” borosilicate fresnel lens
•No fans for silent operation
•Integral Color Module provides a nearly
infinite color palette via 3-channel DMX
control
•Philips® 575W compact tungsten, high
CRI source (GLA/GLA)
•Standard 7.5-inch accessory holders
•Utilizes RAM Power Supplies
•Legendary Wybron reliability
•Made in the USA
482.35mm/18.99”
221.46mm
8.72”

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Model 2570: Nexera Profile - Tungsten
Dimensions:
Height (with yoke attached): 551.82 mm / 21.73 inches
Width (with yoke attached): 301.88 mm / 11.86 inches
Length (with yoke attached): 484.18 mm / 19.06 inches
Weight: 9.6 kg / 21.18 pounds
Electrical Specifications:
Lamp Power Consumption: 600W max
Lamp Power Input Ratings: 115V, 50/60Hz @ 7A
230V, 50/60Hz @ 2.5A
Environmental Specifications:
Maximum Ambient Temperature: 40ºC / 104ºF
Maximum External Surface Temperature: 177ºC / 350ºF
Minimum Distance to Flammable Objects: 1 meter / 3.28 ft
Minimum Distance to Illuminated Objects: 1 meter / 3.28 ft
Features:
•Precise, tool-free lamp optimization
•Integral safety cable mount on fixture
•Precision milled aluminum construction
•Zoom adjust detents at 30° and 36° for
quick setup
•No fans for silent operation
•Integral Color Module provides a nearly
infinite color palette via 3-channel DMX
control
•Philips® 575W compact tungsten, high
CRI source (GLA/GLA)
•Standard 6.25-inch accessory holders
•Utilizes RAM Power Supplies
•Legendary Wybron reliability
•Made in the USA

8
Model 2580: Nexera Wash - CDM
Dimensions:
Height (with yoke attached): 551.82 mm / 21.73 inches
Width (with yoke attached): 270.64 mm / 10.65 inches
Length (with yoke attached): 482.35 mm / 19.092 inches
Weight: 10.31 kg / 22.74 pounds
Electrical Specifications:
Lamp Watts (nominal): 150W max
Ballast Voltage: 120-227VAC
Environmental Specifications:
Maximum Ambient Temperature: 40ºC / 104ºF
Maximum External Surface Temperature: 177ºC / 350ºF
Minimum Distance to Flammable Objects: 1 meter / 3.28 ft
Minimum Distance to Illuminated Objects: 1 meter / 3.28 ft
Features:
•Precise, tool-free lamp optimization
•Integral safety cable mount on fixture
•Precision milled aluminum construction
•6” borosilicate fresnel lens
•No fans for silent operation
•Integral Color Module provides a nearly
infinite color palette plus mechanical
dimming via 4-channel DMX control
•150W compact CDM light source
•Standard 7.5-inch accessory holders
•Utilizes RAM Power Supplies
•Legendary Wybron reliability
•Made in the USA

9
Model 2600: Nexera Profile - CDM
Dimensions:
Height (with yoke attached): 551.82 mm / 21.73 inches
Width (with yoke attached): 301.88 mm / 11.88 inches
Length (with yoke attached): 484.18 mm / 19.06 inches
Weight: 11.13 kg / 24.54 pounds
Electrical Specifications:
Lamp Watts (nominal): 150W max
Ballast Voltage: 120-227VAC
Environmental Specifications:
Maximum Ambient Temperature: 40ºC / 104ºF
Maximum External Surface Temperature: 177ºC / 350ºF
Minimum Distance to Flammable Objects: 1 meter / 3.28 ft
Minimum Distance to Illuminated Objects: 1 meter / 3.28 ft
Features:
•Precise, tool-free lamp optimization
•Integral safety cable mount on fixture
•Precision milled aluminum construction
•Zoom adjust detents at 30° and 36° for
quick setup
•No fans for silent operation
•Integral Color Module provides a nearly
infinite color palette plus mechanical
dimming via 4-channel DMX control
•150W compact CDM light source
•Standard 6.25-inch accessory holders
•Utilizes RAM Power Supplies
•Legendary Wybron reliability
•Made in the USA

10
Fixture Setup and Configuration
Installing the Lamp
Disconnect fixture from line voltage before replacing
lamp.
Lamp and lamp mounting surfaces are hot! Allow lamp to
cool before replacing.
Lamp Specifications:
Note: Wybron supplies and approves only Philips® Broadway™ P3 Series tungsten halogen
lamps for use in Nexera tungsten luminaires.
Lamp socket / base: G9.5
Part # ANSI Watts Volts Lumen Output Life(h) Color Temp
287391 GLC 575 115 15,500 400 3200º K
294322 GLA 575 115 13,500 1500 3100º K
363721 GKV 600 230 15,000 400 3200º K
363739 GLB 600 230 13,000 1500 3100º K
Nexera CDM Units:
Part #
CDM150T6830 Lamp, CDM 150W with UV Fade Block
Disconnect fixture from AC power.
Remove lamp cap by unscrewing both thumbscrews and
pulling the lamp assembly straight back out of the fixture.
Grasp lamp by the base and remove from heat sink lamp
holder.
Touching the lamp glass can reduce lamp life. Handle
new lamps with a clean cloth. Fingerprints can be
cleaned off lamp glass with alcohol and a clean cloth.
Install a new lamp by firmly inserting the lamp into the lamp socket.
Verify lamp is fully seated by looking through the hole in the side of the lamp socket.

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Lamp Optimization
The Nexera lamp position system consists
of four knobs. This system allows
changes made to the Z-axis to occur
without disturbing the X \ Y-axis settings.
Turn on Nexera and aim at a flat
surface.
Use the three X \ Y axis adjustment
knobs to center the lamp in the
reflector.
Rotating one of the X \ Y knobs
clockwise will draw the lamp closer to
the knob. Using two knobs together
moves the lamp along a vector between the knobs.
Use the center knob to adjust the lamp Z-axis for a maximally flat field.
Mounting and Adjusting Fixture
Adjusting the C-clamp
The C-clamp provides a means for installing
Nexera on a mounting pipe. It also allows
the user to rotate the position of the fixture.
Connect C-clamp to the yoke with the
yoke bolt and washer.
Hang C-clamp on mounting pipe and
secure with the C-clamp pipe bolt.
Nexera can be rotated to the desired
position by loosening the pan screw,
setting position, and tightening the pan screw to hold position.
Adjusting the yoke
The Nexera yoke provides two height
positions and allows pitch adjustment of the
fixture.
To adjust yoke height, remove both yoke
adjustment knobs and spacers.
Set desired yoke height and install
spacers and adjustment knobs.
Set desired tilt position and secure by
tightening the yoke adjustment knobs.

12
Attaching Accessories to the Front Holder
Nexera can accept up to two standard accessories.
(7.5” for the wash, 6.25” for the profile) Accessories
are safely held in place with a standard spring-loaded
latch.
From the front of the fixture push the accessory
retaining latch to the right.
After the latch locking pin clears, move the latch
up.
Load the accessory then push the latch to the right
and down to hold the accessory in place. The
spring will engage the locking pin in the fixture.
Connecting AC Power
Be sure the fixture is properly
grounded. Don’t touch the sparky
parts.
Use a good source of AC power that complies with local building and electrical codes and
has both overload and ground fault protection. If the Nexera fixture was received without
an AC lamp cord plug attached, attach the appropriate lamp cord plug according to the
following code:
green – ground/earth
gray – neutral
gray – line
Be sure that the AC power source is appropriate for the lamp being used.
Adjusting Field Angle
Field angle can be adjusted on the Nexera wash light.
Loosen the Fresnel adjustment knob.
Move the Fresnel back to increase field angle, or
forward to reduce the field angle.
Tighten the Fresnel adjustment knob to secure
desired field angle.
Retaining
latch
Accessory
holder
Fresnel
adjustment
knob

13
Nexera and The RAM System
The Nexera gets power from the RAM Power Supply, making it a RAM System
compatible device. The system consists of one or more Nexera Luminaires and/or one or
more other RAM compatible products and a RAM Power Supply.
The DMX512 control signal from the lighting board is connected to the Power Supply and
can continue on to more RAM Power Supplies or other DMX controlled devices. The
RAM Power Supply sends both power and control signal to the Nexera and any other
devices on a single cable.
A RAM Power Supply can power the following number of Nexeras:
PS-600 (600 watts): up to sixteen (16) tungsten or twelve (12) CDM fixtures
PS-300 (300 watts): up to eight (8) tungsten or six (6) CDM fixtures
PS-150 (150 watts): up to four (4) tungsten or three (3) CDM fixtures
See Head-Feet Restrictions for maximum number of units and distances for a single link.
Note: Nexera is compatible with all RAM Power Supplies equipped with software
version 3.11 or higher, and set to CR2 mode. The most recent power supply
software version can be downloaded from www.wybron.com.
The RAM system is not compatible with the
Forerunner system. DO NOT connect Nexera to
Forerunner Power Supplies, or Forerunner Color Changers to RAM
Power Supplies. The Forerunner and the RAM System warranties
will not cover damage from such action.
RAM
Power
Supply
Nexera
Nexera
Nexera
Nexera
DMX control
console
DMX512
AC Power

14
Head-Feet Restrictions
Head-Feet is defined as “the sum of cable lengths from each Nexera color module to a
single power supply output”. The Head-Feet parameter is a method of accounting for the
voltage drop in the power / signal cable caused by the current drawn by each color
module.
To help understand this issue, think of it as water pressure (voltage) in a hose (cable)
where you have multiple water sprinkler heads (Nexera color modules). If the hose
(cable) is too long or you have too many sprinkler heads (color modules), the water
pressure (voltage) will be too low.
Use the following equation to determine total head feet:
Head-Feet = [(A)+(A+B)+(A+B+C)+….]
where:
A = Cable length from power supply to first color module
B = Cable length between first and second color module
C = Cable length between second and third color module
and so on.
The maximum Head-Feet for each of the Nexera fixtures is as follows
Model 2560 Nexera Wash - Tungsten 1500 Head-Feet max.
Model 2570 Nexera Profile - Tungsten 1500 Head-Feet max.
Model 2580 Nexera Wash - CDM 1500 Head-Feet max.
Model 2600 Nexera Profile - CDM 1500 Head-Feet max.
Head-Feet Example
In the figure above four Nexera fixtures are daisy-chained off of the same power supply
output. Using the equation given above, total head-feet can be calculated as follows:
Head-Feet = [(A)+(A+B)+(A+B+C)+(A+B+C+D)]
= [(100) + (100 + 25) + (100 + 25 + 20) + (100 + 25 + 20 + 25)]
= [100 + 125 + 145 + 170]
= 540 Head-Feet
Since total Head-Feet (540) is less than the maximum (1500) this is a valid configuration.
A
100 feet
B
25 feet
C
20 feet
D
25 feet

15
DMX Setup and Operation
Controls and Indicators
Nexera has controls and indicators as follows:
A three character seven-segment display
4 push buttons: Menu, (+), (-), and Enter
Power (red) and signal (green) indicator LED’s
The seven-segment display shows the channel number (c01 – c46) and the speed mode
(hi S – lo S). It also displays any error messages, which will be covered in a later section.
The Menu button allows you to switch between channel and mode select. Pressing the
Select button saves the current channel or mode setting before switching.
The (+) button allows you to increment Nexera’s RAM channel when in channel mode, or
toggle between high and low speed in speed mode. Changes are recorded in non-
volatile memory immediately, and display flashes for 10 seconds to indicate that a
change has been made.
The (-) button allows you to decrement Nexera’s RAM channel when in channel mode, or
toggle between high and low speed in speed mode. Changes are recorded in non-
volatile memory immediately, and display flashes for 10 seconds to indicate that a
change has been made.
The Enter button stops the display from flashing after changing the channel or speed.
The red power indicator LED remains lit as long as there is power at the PC board.
The green LED flashes when a signal is present. It turns off 60 seconds after the last
button press.
The ISP programming port allows the user to reprogram the unit as new software
revisions become available without having to disassemble the unit. See ‘Reprogramming
via the ISP port’ in the Service section of the manual for instructions on upgrading Nexera
software.

16
Menu Tree and Navigation
Nexera’s operating channel is set like other RAM compatible products.
DMX channel = Nexera start channel + Power supply start channel – 1
Please see the RAM Power Supply user manual for instructions on setting the power
supply start channel. A copy of the manual in .pdf format is available at
www.wybron.com.
To change Nexera’s start channel, press the Select button until the display shows
cXX, where XX is a number between 01 and 46.
Use the (+) button to increment the channel. (Channel number loops from 46 to 1
when incremented.)
Use the (-) button to decrement the channel. (Channel number loops from 1 to 46
when decremented.)
Press Select to save setting, or allow Nexera to automatically save the setting after
10 seconds.
Nexera offers high and low speed settings. High speed color changes are complete in
two seconds or less. Low speed movements are inaudible and complete in four seconds
or less.
Press Select until the display shows SXX, where XX is either hi or lo.
Use the (+) or (-) buttons to toggle between high and low speed.
Press Select to save setting, or allow Nexera to automatically save the setting after
10 seconds.
MENU
001 … 509
ADDRESS
SPEED
FOCUS
loS … hiS

17
Display Messages
Displayed for 2 seconds after power up, indicates the version (F) and
revision (9) of software installed in the unit.
Indicates that the unit is initializing the dichroic filter positions.
Indicates the starting channel Nexera will operate on. Channel number
flashes when changed.
Indicates Nexera is in high-speed mode. Speed setting flashes when
changed.
Indicates Nexera is in low speed mode. Speed setting flashes when
changed.
(Flashing) Indicates that the unit is waiting for a roll-call request from the
power supply.
(Flashing) Indicates that motor 1 has encountered an error and has
stopped moving.
(Flashing) Indicates that motor 2 has encountered an error and has
stopped moving.
(Flashing) Indicates that motor 3 has encountered an error and has
stopped moving.
(Flashing) Indicates the unit reads a voltage of lower than 17 volts. The
unit will stop operating at 16 volts.
(Flashing) Indicates the unit has shut down as commanded by the
power supply.
(Flashing) Indicates that the unit attempted to write a value to EEPROM
and was unable to do so. The unit will continue to function.
(Flashing) Indicates that the serial number in the unit has been erased.
The unit will create a random serial number and continue to function
normally.
Blank Unit is running, no error conditions exist, and it has been longer than 60
seconds since last button press.

18
Service
Lamp Replacement
Disconnect fixture from line voltage before replacing
lamp.
Lamp and lamp mounting surfaces are hot! Allow lamp
to cool before replacing.
Refer to the table on page 10 for recommended replacement lamps.
Disconnect fixture from AC power.
Remove lamp cap by unscrewing both
thumbscrews and pulling the lamp assembly
straight back out of the fixture.
Grasp lamp by the base and remove from heat sink
lamp holder.
Touching the lamp glass can reduce lamp life. Handle
new lamps with a clean cloth. Fingerprints can be
cleaned off lamp glass with alcohol and a clean cloth.
Install a new lamp by firmly inserting the lamp into the lamp socket.
Verify lamp is fully seated by looking through the hole in the side of the lamp socket.
Cleaning the Reflector
To avoid burns or damage to the fixture, allow fixture
to cool before cleaning.
Remove the lamp cap by unscrewing both thumbscrews and pulling the lamp
assembly straight back out of the fixture.
Separate the front and rear barrel halves by removing the four screws from the front
barrel as indicated in the picture.
Leaving the reflector installed in the rear barrel, use clean pressurized air to clean
dust from the reflector surface.
If necessary, use a soft cloth and alcohol to clean the reflector surface.
Mate the front and rear barrels and secure in place with four screws.
Replace lamp cap.
Harsh chemicals and rough cloth can damage the
coating on the reflector. Replace damaged reflectors.

19
Cleaning the Color Module
Remove the color module from the front barrel by removing four screws indicated in
the figure.
Use a DMX source and a RAM Power Supply to
command all color filters to 0% DMX.
Using the DMX source command the magenta
filter up into the color module aperture so the top
of the filter is at the top of the aperture.
Clean the exposed filter surfaces with a clean
cloth and alcohol.
Command the magenta filter higher to expose
more of the filter, and clean with alcohol.
After the entire magenta filter has been cleaned,
command it back to 0% and repeat for the
remaining color filters.
Install the color module in the front barrel with the
XLR connectors facing the rear of the unit.
Replace the four mounting screws.
Cleaning the Lenses
Remove the color module from the front barrel by removing four screws indicated in
the figure in the ‘Cleaning the Color Module’ section above. Set the color module
aside.
Separate the front and rear barrel halves by
removing the four screws from the front barrel
as indicated in the picture. Set the rear barrel
aside.
Remove the Fresnel lens screw and washers.
Back the Fresnel knob 90% out, then using the
knob tilt the Fresnel lens out toward the front of
the fixture.
Grasp the edge of the Fresnel lens and back the knob the rest of the way out.
Tilt the Fresnel lens between the accessory brackets and remove the lens. The
accessory brackets can be removed
to ease extraction of the Fresnel lens.
Use clean pressurized air to remove
dust from the lenses.
Clean the condenser and Fresnel lens
with a soft cloth and an ammonia
based cleaner.
Reinstall the Fresnel lens by tilting
lens back into position in the barrel.
Start the Fresnel lens washers and
screw while holding the lens in
alignment with the range slot.
Start the Fresnel knob, then tighten the Fresnel screw, and finally tighten the knob.
Mate the front and back barrels and secure with four screws.

20
Replacing the Fuse
The fuse is located on the same panel as the XLR connectors. Check the fuse if the unit
does not operate and the red power indicator LED does not light when connected to a
power supply. Use a 1.5A slow blow fuse only. Damage caused to the unit with the
incorrect fuse installed is not covered under the warranty.
Error Messages / Troubleshooting
ErX Where Xis 1,2, or 3. The indicated motor has encountered a problem that
prevents it from completing the commanded move.
Check for broken motor or encoder wires.
Check for any foreign objects in the color module that might impede
motion of the color filter.
Check condition of the motor / lead screw belt.
Check condition of the lead screw and lead screw nut.
lo dc The processor is reading low board voltage.
Check that head feet restrictions are not exceeded.
Check for damaged cable between the power supply and fixture.
Uni Off The unit was commanded to shut down at the power supply.
Cycle power at the unit.
SEr Err The serial number was erased.
Most likely occurred during reprogramming, call Wybron technical
support.
EEP Err Nexera is unable to store channel and mode information in non-volatile
memory. Unit will operate, but will not remember settings after cycling power.
Call Wybron technical support.