Wahlberg Mini Roll Down Series User manual

WWW.WAHLBERG.DK AXEL GRUHNS VEJ 3
TELEPHONE: [phone] HØJBJERG
EMAIL: [email protected] DENMARK
Mini Roll Down Series
Item No. 289.701 (Slow Motor) and No. 289.702 (Fast Motor)
User Manual

289.805.003 2Date: 2018-11-28
Safety Information
The following symbols are used to identify important safety information on the product an in this
manual:
This product is for professional use only. It is not for household use.
This product presents risks for sever injury or death due to fire hazards, electric shock, and falls.
Read this manual before installing, powering or servicing the Mini Roll Down; follow the safety
precautions listed below and observe all warnings in this manual and printed on the Mini Roll
Down. If you have questions about how to operate the Mini Roll Down safely, please contact you
Wahlberg Motion Design supplier or Wahlberg Motion Design.
PROTECTION FROM ELECTRIC SHOCK
−Disconnect the Mini Roll Down from AC power before removing or installing any cover or
part and not when in use.
−Always ground (earth) the Mini Roll Down electrically.
−Use only a source of AC power that complies with local building and electrical codes and
has both overload and ground-fault (earth-fault) protection.
−Before using the Mini Roll Down, check that all power distribution equipment and cables
are in perfect condition and rated for the current requirements of all connected devices.
−Power input throughput cables must be rated 20 A minimum, have three conductors 1.5
mm2(AWG16) minimum conductor size and an outer cable diameter of 6-16 mm (0.24-
0.47 inch). Cables must be heat-resistant to 90°C (194°F) minimum. In the EU the cables
must be <HAR> approved or equivalent and in the USA minimum hard usage type (SJT or
equivalent).
−Use only Neutrik powerCON TRUE1 NAC3FX-W cable connectors to connect to power
input sockets. Use only Neutrik powerCON TRUE1 NAC3FX-W cable connectors to connect
to power throughput sockets.
−Assembly power supply cables following the instructions in this manual only (see page 10).
−Isolate the Mini Roll Down from power immediately if any seal, cover, cable, or other
component is damaged, defective, deformed, wet, or showing signs of overheating. Do
not reapply power until repairs have been completed.
−Do not expose the Mini Roll Down to rain or moisture.
−Refer any service operation not described in this manual to a qualified technician.

289.805.003 3Date: 2018-11-28
PROTECTION FROM BURNS AND FIRE
−Do not operate the Mini Roll Down if the ambient temperature (Ta) exceeds 40° C
(104° F).
−The exterior of the Mini Roll Down becomes warm during use. Avoid contact by persons
and materials. Allow the Mini Roll Down to cool for at least 10 minutes before handling.
−Do not modify the Mini Roll Down in any way not described in this manual.
−Install only genuine Wahlberg parts.
PROTECTION FROM INJURY
−Fasten the Mini Roll Down securely to a fixed surface, rig, or structure when in use. The
Mini Roll Down is not portable when installed.
−Ensure that any supporting structure and/or hardware can hold at least 10 times the
weight of all the devices they support, and that the installation respects all locally
applicable regulations.
−If suspending from a rigging structure, fasten the Mini Roll Down using the two supplied
Manfrotto slim couplers according to the manual, see page 9.
−Always install the Mini Roll Down as described in this manual. If the Mini Roll Down is
installed in a location where it may cause injury or damage if it falls, install as described
on page 9.
−If possible, allow enough clearance beneath the Mini Roll Down so it cannot cause any
danger to personnel beneath it. Else, adjust the lower limit accordingly following the
instructions in this manual.
−Check that all external cobblers and rigging hardware are securely fastened.
−Block access below the work area and from a stable platform whenever installing,
servicing or moving the Mini Roll Down.
−Do not operate the Mini Roll Down with missing or damaged covers, or shields.
−Do not use the Mini Roll Down over the head of people.
−Do not use the Mini Roll Down to lift people or animals.
−Only use the Mini Roll Down to lift static loads.
Disposing of this product
Wahlberg Motion Design products are supplied in compliance with Directive
2012/19/EU of the European Parliament and of the Council of the European
Union on WEEE (Waste Electrical and Electronic Equipment), including
amendments where applicable.
Help preserve the environment! Ensure that this product is recycled at the
end of its life. Your supplier can give details of local arrangements for the
disposal of Wahlberg Motion Design products.

289.805.003 4Date: 2018-11-28
Index
SAFETY INFORMATION 2
INDEX 3
TECHNICAL SPECIFICATIONS 5
DRAWING 6
INTRODUCTION 7
PACKAGE CONTENT ...................................................................................................................................... 7
DESCRIPTION............................................................................................................................................... 7
AREA OF USE............................................................................................................................................... 8
USING FOR THE FIRST TIME ............................................................................................................................ 8
TRANSPORT ................................................................................................................................................ 8
PHYSICAL INSTALLATION 9
FASTENING THE MINI ROLL DOWN TO A FLAT SURFACE ...................................................................................... 9
MOUNTING THE MINI ROLL DOWN ON A TRUSS (TUBE/PIPE).............................................................................. 9
AC POWER 10
VOLTAGE.................................................................................................................................................. 10
POWER CABLES AND POWER PLUG ................................................................................................................ 10
INSTALLING A POWER INPUT CONNECTOR ON A POWER CABLE ........................................................................... 10
DATA LINK 11
TIPS FOR RELIABLE DATA TRANSMISSION ........................................................................................................ 11
CONNECTING THE DATA LINK........................................................................................................................ 11
SETUP 12
MOUNTING THE LOAD ................................................................................................................................ 12
MODE SETTING.......................................................................................................................................... 13
DMX ADDRESS SETTING AND CHANNEL OVERVIEW........................................................................................ 13
SETTING THE TOP AND END POSITIONS........................................................................................................... 15
POSITIONING............................................................................................................................................. 16
MANUAL OPERATION USING THE CONTROL BOX ............................................................................................. 17
CONTROL BOX AND HARD-LIMIT SWITCH PORT................................................................................................ 17
DUTY-CYCLE.............................................................................................................................................. 18
SYNCHRONIZED MOVEMENTS OF MULTIPLE MINI ROLL DOWNS......................................................................... 18
SERVICE AND MAINTENANCE 19
SPARE PARTS............................................................................................................................................. 19
ON-SITE SERVICE........................................................................................................................................ 19
MAINTENANCE PLAN .................................................................................................................................. 19
CHECKLIST ................................................................................................................................................ 20
APPENDIX 1 - DIMENSIONS 21
APPENDIX 2 –POWER CONNECTOR 21
APPENDIX 3 - BLOCK DIAGRAM 24
MINI ROLL DOWN –CHEAT SHEET 25

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Technical specifications
Model: Mini Roll Down Series
Item no.: 289
Dimensions: (L×W×H) Tube length max. 4m (13.1 ft) × 150 × 295 mm. (5.9 ×
11.6 in.) without Manfrotto clamps
Power supply: 100-240 V AC 50-60 Hz.
Power consumption: Max. 150 Watt
Power inlet: Neutrik powerCON TRUE1 NAC3PX (F/M)
DMX control signal: DMX 512 1990 + DMX512A / 6 channels used.
DMX connection: 5 pole XLR, male & female
Slow Motor (289.701)
Lifting capacity (Load): 7.0 kg. (15.4 lb)
Lifting speed: 2.5-26 cm/sec. (1.0-10.2 in/sec.)
Motor: 24 V DC, 54 W
Fast Motor (289.702)
Lifting capacity (Load): 3.0 kg. (6.6 lb)
Lifting speed: 5-61 cm/sec. (2.0-24.0 in/sec.)
Motor: 24 V DC, 92 W
Noise emission: ≈55 dB
Ambient temperature: 5-40°C (41-104°F)
Weight (1 m tube): 7.5 kg (16.5 lb), tube 1.3kg/m (0.87 lb/ft.)
Mounting clamp: 2x Slim eye coupler 50 mm (2 in)
Duty-cycle: 50% when running more than 30min.

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Drawing
Mini Roll Down Series (289)
More detailed drawings can be found in Appendix 1 on page 21

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Introduction
Thank you for selecting the Mini Roll Down, a DMX controlled roll down system from Wahlberg
Motion Design. Before using the Wahlberg Mini Roll Down for the first time, please read this
manual carefully. Failure in handling can cause injury of persons and/or damage the roll down.
Package content
1× Mini Roll Down
2× Manfrotto Slim coupler
2× Mounting bolt, nut, and washers (M12) for slim coupler mounting
1× powerCon TRUE1 female plug NAC3FX-W for power cable
1x User Manual
1x Cheat sheet
Description
The mini Roll Down is for stage use, mainly for use in theatres, shows, and concerts. It lifts small
curtains, projector screens, or similar in and out of the stage sphere at maximum load of 7.0 kg
for the slow variant and 3.0 kg for the fast variant. The length of the drum depends on the
application and can easily be changed. Two different versions have been developed, which vary in
maximum lifting speed. The slow version has a lifting speed of 2.5 to 26 cm/s, while a faster version
has been developed with a lifting speed up to 61 cm/s. Both versions are highly accurate and stop
within 2 mm of the target position. Multiple Mini Roll Downs can easily be connected, as a chain,
allowing for advanced and creative ways of making dynamic movements.
The two versions are controlled in the same manner. Typically, through 6 DMX channels from a
lighting desk where the position and speed can be changed live or pre-programmed as wished.
Through the lighting desk the top and bottom positions can also be set. Furthermore, the Mini Roll
Down can be controlled using a Manual Control Box from Wahlberg Motion Design, or
alternatively manually through mode 9 or 0.
Safety functions
The control system ensures that the motor is only powered when:
•The DMX signal is reliable.
•The speed control channel is on (more than 0%).
•The motor is instructed to move.
•No overload.
The Mini Roll Down should only be operated by an experienced lighting-desk-operator. The
lighting desk must be programmed according to the manual, so the Mini Roll Down will stop when
the speed is put to 0 %. It is also possible for the user to stop the Mini Roll Down by disconnecting
the mains power. After Power interruption the top position of the Mini Roll down needs to be
reset before the Mini Roll Down can function again

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Area of use
For indoor use only!
WARNING! To reduce the risk of electric shock or injury: use indoors only
WARNING! To reduce the risk of electric shock, do not expose to rain: store indoors!
The Mini Roll Down is intended for indoor use only. It is designed for lifting and lowering material
at the weight and speed stated in "Technical Data". Any other use of the Mini Roll Down may result
in a risk of injury of persons or equipment damage.
Exceeding the load rating may cause failure of the equipment.
Do not modify the Mini RollDown. For any modification of your Mini Roll Down, contact Wahlberg.
It is the customers' responsibility that any local restrictions concerning the use of the Mini Roll
Down are fulfilled.
Using for the first time
Important! The Mini Roll Down must be protected from environmental factors such as physical
shocks and vibration during transportation and storage.
WARNING! Read “Safety Information” on page 2 before installing, powering, operating, or
servicing the Mini Roll Down. Before applying power to the Mini Roll Down:
−Check the Wahlberg Motion Design website at www.wahlberg.dk for the most recent
documentation and technical information about the Mini Roll Down. Wahlberg user manual
revisions are identified by the revision number in the bottom of each page.
−Carefully review the “Safety Instructions” on page 2.
−Check that the local AC mains power source is within the Mini Roll Down power voltage and
frequency ranges.
−See “Power cables and power plug” on page 2. Install a Neutrik powerCON TRUE1 NAC3FX-W
power input connector on a suitable power cable. If using the power from a mains power outlet,
install a suitable power plug on the power cable.
Transport
Important! The Mini Roll Down must be protected from environmental factors such as physical
shocks and vibration during transportation.
Use only the original packaging, flight case, or pallet frame for protecting the product during
transport. Contact Wahlberg for enquiries regarding flight cases or pallet frames.

289.805.003 9Date: 2018-11-28
Physical installation
WARNING! The Mini Roll Down must be either fastened to a flat surface such as a roof or
clamped to a truss or similar structure. Do not apply power to the Mini Roll Down if it is not
securely fastened.
WARNING! The supporting surface must be hard and flat. Fasten the Mini Roll Down securely.
WARNING! Use only the supplied rigging clamp and M12 bolt. The clamp must be screwed into
the Mini Roll Down’s mounting brackets using the supplied M12 washers and M12 locking-nuts.
WARNING! When the unit is installed in a location where it may cause injury or damage if it
falls, install a secondary suspension such a BGV C1 / DGUV 17 safety cable at the primary
suspension (clamp) nearest the motor unit, and fasten it securely between the truss/pipe and
the top bar of the Mini Roll Down. Make sure the safety cable is rated for the total weight of
the complete unit including the load.
Fastening the Mini Roll Down to a flat surface
The Mini Roll Down can be fastened to flat surface such as a roof. Check that the surface can
support at least 10 times the weight of all Mini Roll Downs and equipment to be installed on it,
and that the installation respects all locally applicable regulations.
Mounting the Mini Roll Down on a truss (tube/pipe)
The Mini Roll Down can be clamped to a truss or similar rigging structure.
To clamp a Mini Roll Down to a truss (tube/pipe):
1. Check that the rigging clamp is undamaged and that the rigging structure can support at
least 10 times the combined weight of all Mini Roll Downs and equipment to be installed on
it.
2. Use the supplied rigging clamp or contact Wahlberg Motion Design for a replacement.
3. Fasten the clamp to the Mini Roll Down with the supplied M12 bolts, nuts, and washers in
the hole in the mounting clamp of the Mini Roll Down.
4. Block access under the work area. Working from a stable platform, hang the Mini Roll Down
on the truss with the wire downwards. Tighten the rigging clamp.
5. Install a suitable safety cable when hanging over-head.
Safety Cable

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AC power
WARNING! Read “Safety Information” on page 2 before connecting the Mini Roll Down to AC
mains power.
WARNING! For protection from electric shock, the Mini Roll Down must be grounded (earthed).
The power distribution circuit must be equipped with a fuse or circuit breaker and ground-fault
(earth-fault) protection.
WARNING! Socket outlets or external power switches used to supply the Mini Roll Down with
power must be located near the Mini Roll Down and easily accessible so that the Mini Roll Down
can easily be disconnected from power.
Voltage
WARNING! Check that the voltage range specified on the Mini Roll Down’s serial number label
matches the local AC mains power voltage before applying power to the Mini Roll Down. Do
not apply AC mains power to the Mini Roll Down at any other voltage than that specified on the
Mini Roll Down’s serial number label.
Power cables and power plug
The Mini Roll Down requires a power input cable with a Neutrik powerCON TRUE1 NAC3FX-W
cable connector for AC mains power input. The cable must meet the requirements listed under
“Protection from electric shock” on page 2.
If you install a power plug on the power cable, install a grounding-type (earthed) plug that is rated
20 A for USA and 16A for Europe. Follow the plug manufacturer’s instructions. Table 1 shows
standard wire color-coding schemes and some possible pin identification schemes; if pins are not
clearly identified, or if you have any doubts about proper installation, consult a qualified
electrician.
Table 1 - Colour guide
Wire Colour
Conductor
Symbol
Screw (US)
Brown
Live
L
Yellow or brass
Blue
Neutral
N
Silver
Yellow/green
Ground (earth)
or
Green
Installing a power input connector on a power cable
To install a Neutrik powerCON TRUE1 NAC3FX-W input connector on a power cable, follow the
original Neutrik instructions in Appendix 2 on page 21.
By supplying power to the Mini Roll Down, the DMX and Mode LED should light up or start flashing
depending on the situation, see page 12 for setup.

289.805.003 11 Date: 2018-11-28
Data link
A DMX 512 data link is required in order to control the Mini Roll Down via DMX. The Mini Roll
Down has 5-pin XLR connectors for DMX data input and output. The pin-out on all connectors is
pin 1 = shield, pin 2 = (data -), and pin 3 = (data +). Pins 4 and 5 in the 5-pin XLR connectors are not
used in the Mini Roll Down but are available for possible additional data signals as required by the
DMX512-A standard.
The Mini Roll Down is subject to the common limit of 32 devices per daisy-chained link. Note that
if independent control of a Mini Roll Down is required, it must have its own DMX channels. Motors
that are required to behave identically can share the same DMX channels. To add more motors or
groups of products when the above limit is reached, add a DMX universe and another daisy-
chained link.
Tips for reliable data transmission
−Use shielded twisted-pair cable designed for RS-485 devices: standard microphone cable cannot
transmit control data reliably over long runs. AWG24 cable is suitable for runs up to 100 meters
(328 ft.).
−Never split a DMX line without using an opto-isolated RS-485 splitter/amplifier.
−Terminate the link by installing a termination plug in the output socket of the last product. The
termination plug, which is a male XLR plug with a 120 Ohm, 0.25 Watt resistor soldered between
pins 2 and 3, “soaks up” the control signal so it does not reflect and cause interference. If a splitter
is used, terminate each branch of the link.
Connecting the data link
To connect the Mini Roll Down to data:
1. Connect the DMX data output from the DMX controller to the Mini Roll Down’s male 5-
pin XLR DMX input connector (DMX 512 IN).
2. Connect the DMX output of the Mini Roll Down to the DMX input of the next Mini Roll
Down and continue connecting Mini Roll Downs output to input (DMX 512 OUT).
3. Terminate the last Mini Roll Down on the link with a 120 Ohm resistor.
The DMX lamp is the green led, next to the DMX-selectors.
−Glows constant, when the DMX connection is correct.
−Flash if the DMX signal is missing or wrongly connected. Note that for mode 7-8-9-0 no
DMX signal is needed, thus the DMX lamp will blink but the Mini Roll Down will operate
as desired.

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Setup
WARNING! Read “Safety Information” on page 2 before installing, powering, operating, or
servicing the Mini Roll Down.
WARNING! Only experienced DMX users should operate the Mini Roll Down. Contact Wahlberg
for further information and education on DMX protocol.
Mounting the load
When mounting the load make sure it is orientated correctly,
otherwise the fabric mounted will roll over itself in the
wrong direction when moving to the top position.
The easiest way to mount a load on the tube is simply to
attach it with double sided tape. Just make sure that at least
1 full rotation is left on the tube when it is rolled all the way
out in operation.

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Mode setting
The mode switch is found on the front panel left to the DMX address switches and this can be used
to select various functions and ramps for normal operation, setup and diagnostic purpose.
Mode setting overview
MODE
Function
Description
Note
1
DMX Positioning slow ramp
For normal operation of the Mini Roll Down,
and the slow, medium or fast ramps may be
selected depending on the use and the type of
load.
See page 14, 15 and
Figure 1 for details
about the setup and
run.
2
DMX Positioning medium ramp
3
DMX Positioning with fast
ramp
4
DMX Positioning slow ramp
and hard-limits active
For applications where hard-limit switches are
desired, like in situations where the range
needs to be limited by a hardwired switch. The
slow, medium or fast ramps may be selected
depending on the use and the type of load.
For more information
about this option see
manual for the DMX
Motor Unit.
5
DMX Positioning medium ramp
and hard-limits active
6
DMX Positioning with fast
ramp and hard-limits active
7
Manual set soft limit top and
bottom position using the
control box
Manually set/run to the soft limit top and
bottom positions using the optional control box
(not included), as for stand-alone operation
without DMX.
See page 17 for
details about the
setup and run.
CAUTION! Manual
modes will overrule
any DMX control,
and movement of
the motor may only
be interrupted by
powering off the
mains voltage.
8
Manual run to top and bottom
limits using the control box
9
Manual CW (DMX address =
speed)
Manually setting the motor to a desired
direction and speed via the DMX address
switches, for simple stand-alone operation
without DMX control.
0
Manual CCW (DMX address =
speed)
DMX ADDRESS setting and channel overview
The DMX address, also known as the start channel, is the first channel used to receive instructions
from the controller. For independent control, each Mini Roll Down must be assigned its own
control channels.
The DMX address is configured using the three DMX ADDRESS selectors on the Mini Roll Down.
The selected DMX address states from which channels, on the lighting desk, the Mini Roll
Down is controlled. The Mini Roll Down uses 6 DMX channels. The example below shows a DMX
start address 212 (200+10+2).

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DMX channel overview
DMX
channel
Function
Description
1
Position rough
This channel controls the position of the Mini Roll Down, with the speed (DMX channel 3).
This rough position works together with the fine position (DMX channel 2).
The rough position and the fine position are multiplied in to a 16 bit channel. The rough
position is the MSB.
2
Position fine
This channel controls the position of the Mini Roll Down, with the speed set on DMX
channel 3.
This fine position works together with the rough position (DMX channel 1).
The fine position and the rough position are multiplied in to a 16 bit channel. The fine
position is the LSB
3
Speed
This channel controls the speed of the Mini Roll Down.
This channel defines the maximum speed, and the Mini Roll Down slows down as closing in
on the wanted position.
This channel also works as a main brake; the motor does not run unless the channel is set
above 0%. The speed-channel can also be used to make soft and slow movements or fast
and sudden movements.
4
Enable save
soft limits
When channel 4 is between 60-65% saving of soft-limit top and bottom position is enabled.
The Mini Roll Down can be operated while channel 4 is between 60-65%, however, to
minimise the risk of accidentally setting new top and bottom limit, channel 4 should be set
to 0% when not in use.
5
Manuel Up /
Set soft-limit
top (100%
position)
The value of the channel determines the speed at which the Mini Roll Down moves up. This
channel overrules movement with positioning via channel 1 & 2.
•Channel 4 between 60-65% enable save soft-limits.
When channel 4 is in this range the top position can be adjusted using channel 5.
The Top position is saved when channel 5 is put back at 0%. Note that it should be
moved gradually towards 0% to give the banner time to slow down.
The top position should be set with channel 5 before the bottom position is set with
channel 6, since the range is calculated relative to the top position.
•Channel 4 not between 60-65% enable save soft-limits is NOT enabled.
When save soft-limits is not enabled, channel 5 can still run the roll up but any position
is not saved, so it returns to the position given by channel 1 &2.
6
Manuel Down
/ Set soft-limit
bottom, and
range (0%
position)
The value of the channel determines the speed at which the Mini Roll Down moves up. This
channel overrules movement with positioning via channel 1 & 2.
•Channel 4 between 60-65% enable save soft-limits.
When channel 4 is in this range the end position can be adjusted when running with
channel 6. The bottom position is set when channel 6 is put back at 0%.
The top position should be set with channel 5 before the bottom position is set with
channel 6, since the range is calculated relative to the top position.
•Channel 4 not between 60-65% enable save soft-limits is NOT enabled.
When save soft-limits is not enabled, channel 5 can still run the roll down but any
position is not saved, so it returns to the position given by channel 1 & 2.

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Setting the top and end positions
When the Mini Roll Down is ready, the first step is to set the soft-limit top and bottom positions.
See channel description for channel 4, 5 and 6 above. When the range has been set once on
channel 6 it is saved and does not need to be set again unless a new range is needed.
Example:
−DMX channel 4 is set to 62% →Soft-limit save enabled.
−DMX channel 5 is set to 30% →The roll starts moving up.
−DMX channel 5 is set to 0% →The roll stops, and the soft-limit top position is saved at
this point.
−DMX channel 6 is set to 30% →The roll starts to move down.
−DMX channel 6 is set to 0% →The roll stops, and the soft-limit bottom position is also
saved.
The Mini Roll Down is now ready for use and the soft-limit top and bottom positions have been
saved. Finally, the position control with channel 1 and 2 is now relative to the top and bottom soft-
limits settings.
It is recommended to set the soft-limit top position after each power-up, however, moving the
roll to the top position before powering off should lead to identical top and bottom positions
whenever the unit is repowered, provided that the drum position was not manually changed or
the drum return to the top position was interrupted by a power failure, furthermore excessive
transportation conditions may also affect the drum position.
For further guidance see below illustration for application of the soft-limits.
Figure 1: Illustration of application of the soft-limits.
Setting soft-limit top
position (DMX Ch. 5)
Setting soft-limit bottom
position (DMX Ch.6)
Working range and
speed
(DMX Ch. 1, 2 & 3)
Adjustable
Step
1
Step
2
Step
3
Down
Up

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Positioning
When the Mini Roll Down has been setup and the top position is set, it is possible to use it for
positioning run.
The position is set on the DMX channel 1 and 2, which controls the rough-and fine-position. Where
100 % is the top-position and 0 % is the bottom-position.
The positions lamp indicates, by fast flashing, that the Mini Roll Down is going towards the wanted
position. The position lamp indicates, by stable light, that the Mini Roll Down has found the
wanted position and the motor has stopped.
The speed is set on the DMX channel 3, where 100 % is the fastest and 0 % is the slowest.
The Mini Roll Down does not run unless DMX channel 3 is set above zero, and therefore this
channel works as a main brake.

289.805.003 17 Date: 2018-11-28
Manual operation using the Control Box
Insert the control box (not included) into the limit switch connector and apply mains power to the
product.
Procedure:
State
Step
Description
Setup/
Adjustment
1
Select mode 7 on the MODE switch and set a slow motor speed using the DMX
address switches, approx. 100 is recommended for setup purpose.
2
Push the Up (CW) button on the control box and keep it pushed until the desired
soft-limit top position is reached.
3
Push the Down (CCW) button on the control box and keep it pushed until the
desired soft-limit bottom position is reached.
4
Select mode 8 and set the desired speed using a value between 060 and 512 on
the DMX address switches (The minimum obtainable speed may vary due to the
weight of the load).
Operation
1
Push the Up (CW) button and the motor will move to the top position.
2
Push the Down (CCW) button and the motor will move to the bottom position.
Power
down
-
Return to the top position as this is always the expected position at power-on. In
case this is not followed, a full setup procedure will need to be done.
Power-on
-
Whenever the product is repowered, there should be no need to setup the top
and bottom positions, provided the product was powered down at the top
position, and the shaft position was not changed (manually or due to
transportation).
Control box and Hard-limit switch port
The following table shows the needed connections to the control box port for using the manual
mode, it also includes the connections for hard-limit switches when desired.
Pin
Control box option
(mode 7 and 8)
Hard-limit switch option
(mode 4, 5 and 6)
Connector
LIMIT SWITCH
1
GND (COM/Common)
GND (COM/Common)
2
Down (CCW) control button input
(NO/normal open switch type)
CW(Up) hard-limit switch input
(NC/normal closed switch type)
3
Up (CW) control button input
(NO/normal open switch type)
CCW(Down) hard-limit switch input
(NC/normal closed switch type)
4
+5VDC output (optional)
+5VDC output (optional)
Note: All inputs are internally pulled-up to +5V, and then activated by a short (externally switch) to the
GND pin.

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Duty-cycle
When the unit is continually operated for more than 30 minutes at full load, speed and high
ambient temperatures, the below duty-cycle (DC) limitation will need to be considered.
The duty-cycle (DC) is the fraction of a period where the motor is active. The duty-cycle is
commonly expressed as a percentage or ratio. Its described as the period it takes for a system to
complete an on-and-off cycle.
Thus, a 10% duty-cycle means the system is on 10% of the time and off 90% of the time. The “on
time” for a duty-cycle is normally related with a cycle length in time. E.g. a max duty-cycle of 50%
(30 min. ON / 30 min. OFF), means that the motor may not be active for more than 30 minutes
every hour, or after 5s ON the motor must be OFF for 5s if continually operated for more than 30
minutes.
Synchronized movements of multiple Mini Roll Downs
If several Mini Roll Downs are installed to perform synchronized movements, the best result is
achieved by using a fading 16 bit position. By nature, there is a slight deviation in performance of
the motors, and some motors have a slightly higher maximum speed than others.
Like when fading light, the positions of the different Mini Roll Downs should be faded, and the
Mini Roll Downs will tend to follow that fade. When fading the positions:
1. The speed channel should be a set to 100 % to gain the highest possible speed.
2. The position channel should be added as a 16 bit channel and not just the MSB on channel
1.
3. The speed of the fade needs to be slower than the maximum speed, so the motors have
speed enough to perform the movement.
If the fade of the positions is too fast, the Mini Roll Downs will move at the maximum speed, and
you will see the difference in the motor speed.
If the fade is to slow the Mini Roll Downs will move –stop –move –stop, when the position
changes, thus giving a discontinuous movement.

289.805.003 19 Date: 2018-11-28
Service and maintenance
WARNING! Read “Safety Information” on page 2 before servicing the Mini Roll Down.
WARNING! Disconnect the Mini Roll Down from AC mains power and allow cooling down for at
least 10 minutes before handling.
WARNING! Refer any service operation not described in this user manual to a qualified service
technician.
WARNING! Incorrect insertion of the powerCON TRUE1 may cause electrical contact
misalignment resulting in equipment malfunction and/or personal injury.
ATTENTION! Interval of inspections should be determined according to the frequency of use and
the working scenario of the Mini Roll Down.
ATTENTION! Signs of malfunction or poor operation should always lead to an inspection of the
Mini Roll Down, and the Mini Roll Down should be taken out of operation until the error is
eliminated.
Spare parts
Only parts ordered at or approved by Wahlberg should be used in the Mini Roll Down to ensure
product function and stability. Contact Wahlberg to inquire about spare parts.
On-site service
On-site service and maintenance can be provided by the Wahlberg Motion Design, giving owners
access to Wahlberg Motion Design’s expertise and product knowledge in a partnership that will
ensure the highest level of performance throughout the product’s lifetime. Please contact
Wahlberg Motion Design for details.
Maintenance plan
The results of all the regular inspections are to be documented and kept available at the company.
The written result of the last inspection must be kept available at the site of operation, e.g. by an
inspection sticker on the Mini Roll Down showing the date of the inspection, the basis of the
inspection and the name of the inspector.
Before every use and weekly
Every time when rigging the Mini Roll Down, before running the Mini Roll Down –and at least
every week when the Mini Roll Down is in use:
−Check that the fabric is winded neatly on the drum.
Monthly
At regular intervals –but at least every month when the Mini Roll Down is in use:
−Check the mounting clamp and snap hook for damages and proper fastening.
−Change damaged parts according to this manual.
Yearly
The Mini Roll Down has to be inspected by a specialist every 12 months.
Every 48 months
The Mini Roll Down should be inspected by an authorised expert every 48 months.

289.805.003 20 Date: 2018-11-28
Checklist
Use the checklist accordingly; before each use, each month etc.
Check
Type
Result
Installed / mounted correct
Inspection
Load and LEDs visible for the operator
Inspection
Load mounted safely
Inspection
powerCON TRUE1
Inspection
powerCON TRUE1
Regularly check the condition of the powerCON TRUE1 connector system (cable connector and
chassis) for clear signs of wear and tear.
Through improper use and the excessive use of force, the encoding lugs and guide slots in the
connector system can become so severely worn or damaged that it is possible to insert the cable
connector the wrong way. However, when inserted the wrong way, the cable connector should
not twist-lock into place.
A cable connector inserted the wrong way could, in some circumstances, lead to contact between
live wires and the grounding contact in the plug socket.
To determine that the cable connector is inserted correctly, follow the use instructions and listen
for the “click” when performing the twist-lock. Immediately unplug any connector that does not
twist-lock correctly in place.