LEDVANCE MCU Select DALI-2 Controllers User Guide
- July 25, 2024
- LEDVANCE
Table of Contents
MCU Select DALI-2 Controllers
“`html
Specifications
-
Product Name: MCU SELECT DALI-2 controllers
-
Model Numbers: MCU SELECT DALI-2 EXC TW, MCU SELECT DALI-2
TW -
EAN: 4058075837522, 4058075837485, 4058075837508
Product Information
The MCU SELECT DALI-2 controllers are advanced lighting
management devices designed for efficient control of DALI-2
compatible luminaires. With features like setting minimum dimming
levels, memory value storage, and behavior customization after
mains interruption, these controllers offer versatile lighting
solutions for various applications.
Product Usage Instructions
1. Mounting
Ensure to switch off mains and DALI supply during
installation.
-
Flush Box Mounting: Suitable for concrete walls or hollow
walls. -
Surface Mounting: Follow dimensions and fixation hole patterns
provided. Ensure cable/wire preparation is done correctly.
2. Configuration
Behavior after mains interruption can be set using the rotary
switch on the backside of the MCU:
-
* **A:** Last dimming level and switching statebefore interruption will be re-established.
- *B:** Dimming level stored by Double Click (=
Memory value).
- *B:** Dimming level stored by Double Click (=
3. Handling
User Operation:
-
* Follow the instructions provided in the user manual for dailyoperation.
4. Resetting MCU and DALI Drivers
-
1. Switch off mains of the MCU and all connected devices, then setrotary switch to position 9.
-
Switch on mains of the MCU and connected devices.
-
If light is ON, switch off lights via short push to the rotary
knob of the MCU.
Frequently Asked Questions (FAQ)
Q: What should I do if the lights do not respond to the
controller?
A: Check the power supply to the controller and ensure proper
wiring connections. Reset the controller following the provided
instructions if needed.
“`
1
LIGHT MANAGEMENT IS VIVARES
Application guide MCU SELECT DALI-2 controllers
Status: June 2024 | LEDVANCE Subject to change without and notes. Errors and
omission excepted.
2
Application guide MCU SELECT / SELECT TW
MCU SELECT DALI-2 EXC TW
MCU SELECT DALI-2
MCU SELECT DALI-2 TW
EAN: 4058075837522
EAN: 4058075837485
EAN: 4058075837508
3
Application guide MCU SELECT / SELECT TW
Table of contents
Topic
page
1. General: Features & benefits / Compatible design covers
3
3. Mounting: Flush box mounting / Surface mounting
5
4. Configuration: Behaviour after mains interruption / RESET / Set minimum dimming level
7
5. Handling: User operation
10
6. Application example 1: Meeting room
12
7. Application example 2: Room with motion detectors
14
8. Application example 3: Room with room with partition wall
16
9. Application example 4: Room with room with partition walls and motion detectors
18
10. Questions and Answers
21
11. Troubleshooting
22
12. Technical data
23
4
Application guide MCU SELECT / SELECT TW Features & benefits
Product Features
· Dimming and switching of DALI fixtures via integrated rotary knob · Change
of color temperature* in combination with DALI DT8 drivers · Control up to 25
DALI LED drivers per active control unit
Product Benefits
· All in one solution with integrated DALI power supply · Plug and control
ready · Compatible with 3rd party design covers of leading European brands ·
Interconnection of up to 4 MCU’s with automatic synchronization via DALI ·
Suitable for rooms with separation walls · Possibility of combination with
standard motion detectors · Fits into standard flush device boxes with > 40mm
depth · Works in active (= mains powered) or
passive mode (= DALI powered) · Automatic or manual memory of switch on level
· Individual setting of lowest dimming level · Configuration of power on state
after mains interruption by rotary switch
Application areas
· Conference rooms · Residential / Shop/ Hospitality areas
- Only MCU SELECT DALI-2 TW and MCU SELECT DALI-2 EXC TW
5
Application guide MCU SELECT / SELECT TW Compatible design covers
Compatible design covers
6mm Adapter *
(subject to change without notice)
- Supplied with MCU SELECT DALI-2 EXC TW
6
Application guide MCU SELECT / SELECT TW Flush mounting
Suitable flush boxes
For concrete walls / for hollow walls
Wire preparation
Switch off mains and DALI supply during installation !
7
Application guide MCU SELECT / SELECT TW Surface mounting
Mounting principle
Dimensions and fixation hole pattern
Side cable entry
Rear cable entry
SURFACE MOUNT FRAME
(4058075843561)
Switch off mains and DALI supply during installation !
Cable / wire preparation
8
Application guide MCU SELECT / SELECT TW Configuration: Behaviour after mains interruption
State of the lighting after mains interruption can be set by the rotary switch on the backside of the MCU
Setting MCU SELECT DALI-2
MCU SELECT DALI-2 TW / MCU SELECT DALI-2 EXC TW
A
Last dimming level and switching state before Last dimming level / last CCT and switching state before mains
mains interruption will be re-established
interruption will be re-established
B*
Dimming level stored by Double Click (=
Memory value)
Dimming level and CCT stored by Double Click (= Memory value)
C
10% brightness
10% brightness, CCT = 4000K
D
20% brightness
20% brightness, CCT = 4000K
E
30% brightness
30% brightness, CCT = 4000K
F
50% brightness
50% brightness, CCT = 4000K
0
80% brightness
80% brightness, CCT = 4000K
1
100% brightness
100% brightness, CCT = 4000K
2
OFF (Light level 0%)
OFF (Light level 0%)
3
No light level command send
(= individual “DALI POWER ON LEVEL” programmed in the DALI drivers applies)
4-8
Reserved (do not use)
Switch off mains and DALI supply before accessing the rotary switch on the backside!
- In Setting B the double click is disabled. Please store the memory value to be used after mains interruption by setting the rotary switch temporarily to position A.
9
Application guide MCU SELECT / SELECT TW Configuration: RESET
RESET MCU and the connected DALI drivers
Step 1: Step 2:
Switch off mains of the MCU and of all connected devices, then set rotary
switch on the backside of the MCU to position 9
Switch on mains of the MCU and of all connected devices
Step 3: If light is ON, Switch Off lights via Short push to the rotary knob of the MCU
Step 4: Keep rotary knob of the MCU pressed for > 10s until light goes to 100%
Step 5: Step 6:
Switch off mains of the MCU and of all connected devices, then set rotary
switch back to the original position
Switch on mains of the MCU and of all connected devices
Remark
Note previous position of the switch
A DALI RESET command is sent to all connected drivers and the minimal dimming
level is reset to 1%. RESET affects all interconnected powered up MCUs and
drivers
Switch off mains and DALI supply before accessing the rotary switch on the backside!
10
Application guide MCU SELECT / SELECT TW Configuration: Set minimum dimming
level
Setting the minimal dimming level
Remark
Step 1: Step 2:
Switch off mains of the MCU and of all connected devices, then set rotary
switch on the backside of the MCU to position 9
Switch on mains of the MCU and of all connected devices
Note previous position of the switch
Step 3: If light is OFF, Switch On lights via Short push to the rotary knob of the MCU
Step 4: Step 4: Step 5:
Adjust brightness level by clockwise / counterclockwise rotation of the knob
until desired minimal brightness level is achieved Keep rotary knob of the MCU
pressed for > 10s until lights blink
Switch off mains of the MCU and of all connected devices, then set rotary
switch back to the original position
If 1% or low dimming levels cannot be achieved by rotation of the knob, please
RESET the MCU and the drivers
Current brightness level is stored as new minimum dimming level. Minimum
dimming level setting affects all interconnected and powered up MCUs.
Step 6: Switch on mains of the MCU and of all connected devices
Switch off mains and DALI supply before accessing the rotary switch on the backside!
11
Application guide MCU SELECT / SELECT TW User operation
Switch ON / OFF
· To switch on / off briefly press the rotary knob. · Switching direction
toggles with each knob press.
Define manual Switch ON behaviour
· To store a fixed brightness and CCT for Switch ON, adjust brightness and
CCT value as desired and store by Double Click.
(Note: Double Click is disabled in turnkey position B)
· Storage is indicated by two times blinking of the lights.
Double Click
· To delete a fixed brightness and CCT* for Switch ON, switch off the light
and Double Click the knob.
(Note: Double Click is disabled in turnkey position B)
· Deletion is indicated by lights switching to ON 100%/4000K. Without after
deletion, the last values before manual OFF will be used for Switch ON.
Double Click
- Only MCU SELECT DALI-2 EXC TW and MCU SELECT DALI-2 TW
12
Application guide MCU SELECT / SELECT TW User operation
Dimming
· If light is switched on, light level can be increased by a clockwise
rotation of the knob and decreased by a counterclockwise rotation.
· The magnitude of change of the light level is derived from the rotation
speed and rotation angle · The minimum dimming level can be restricted as
described in the chapter “Configuration” of this guide
Setting the colour temperature (CCT)*
· If light is switched on and DALI DT8 compatible luminaires are connected,
the colour temperature can be increased by a clockwise rotation when the knob
is pressed and decreased by a counterclockwise rotation of the pressed knob.
· The magnitude of change of the CCT is derived from the rotation speed and
rotation angle
- Only MCU SELECT DALI-2 EXC TW and MCU SELECT DALI-2 TW
13
Application guide MCU SELECT / SELECT TW Application example 1: Meeting room
Description
FUNCTIONALITY · Up to 25 luminaires shall be controlled by a broadcast DALI
signal · Dimming and switching of all luminaires shall be possible at both
entry doors of the
room
PRINCIPLE SETUP · A MCU SELECT is installed at both entry doors · The MCU at
one door is connected to mains and acts as central DALI bus power
supply (= active MCU) · The second MCU is connected to DALI only and is
supplied from the DALI bus (=
passive MCU) · All luminaires are connected to mains and the DALI bus
OPTIONS · If tunable white luminaires shall be controlled, please use MCU
SELECT DALI-2 EXC TW
or MCU SELECT DALI-2 TW · If number of luminaires is > 25, please connect
second MCU also to mains
Installation scheme
230VAC
Active MCU
Passive MCU
14
Application guide MCU SELECT / SELECT TW Application example 1: Meeting room
Installation
Safety · Switch off mains and DALI supply during installation ! · DALI must be
treated like mains voltage
Wiring · Max. total DALI wire length: 300m · Recommended DALI wire diameter
1,5mm² · DALI and mains voltage may be routed in the same cable
(e.g. NYM 5×1,5mm²) Hints: – Ensure correct polarity DA+/DA- when connecting
the
second MCU – Respect the max. number of luminaires per circuit breaker
as otherwise high inrush currents at mains switch on of the
ComLEmDisdsriivoenrisnmg ay trigger the fuse · To avoid that lights are
switched on after a temporary mains
interruption please set turnkeys of all MCU to identical position A (=last
state) or position 2 (=OFF)
Possible system size · Max. 25 DALI drivers per active DALI MCU · Max. 4 DALI
MCU per system · Each Active MCU can power 1 passive MCU via DALI bus
Wiring diagram 1:
Active MCU SELECT
DA+
DA-
L
N
N L DA-DA+
~
~
DT6/DT8 DALI
DA
driver
DA
Up to 25 drivers
~
~
DT6/DT8 DALI
DA
driver
DA
Passive MCU SELECT
N L DA-DA+
15
Application guide MCU SELECT / SELECT TW Application example 2: Room with
motion detectors
Description
FUNCTIONALITY · Up to 25 luminaires shall be switched by standard motion
detectors · Dimming and switching of all luminaires shall be possible at both
entry doors of the room
if persons are present
PRINCIPLE SETUP · A MCU SELECT is installed at both entry doors · The MCU at
one door is connected to mains and acts as central DALI bus power supply
(= active MCU) · The second MCU is connected to DALI only and is supplied from
the DALI bus (= passive
MCU) All luminaires are connected to the DALI bus · Mains of all luminaires
and the active MCU is switched via the load contacts of the detectors
Installation scheme
Active MCU 230VAC
Passive MCU
16
Application guide MCU SELECT / SELECT TW Application example 2: Room with
motion detectors
Installation
Safety · Switch off mains and DALI supply during installation ! · DALI must be
treated like mains voltage
Wiring · Max. total DALI wire length: 300m · Recommended DALI wire diameter
1,5mm² · DALI and mains voltage may be routed in the same cable
(e.g. NYM 5×1,5mm²) Hints: – Ensure correct polarity DA+/DA- when connecting
the
second MCU – Respect the max. number of luminaires per circuit breaker
and max. load at the switched sensor output Commissioning · Fully automatic
ON/OFF by motion detection:
Set turnkeys of all MCU to identical position C-F, or 0,1 · Semi automatic (=
Manual ON via MCU and automatic OFF
via Motion detector): Set turnkeys of all MCU to position 2
Possible system size · Max. 25 DALI drivers per active DALI MCU · Max. 4 DALI
MCU per system · Each Active MCU can power 1 passive MCU via DALI bus
Wiring diagram 2:
Active MCU SELECT
DA+
DA-
L
N
L´
N L DA-DA+
~
~
DT6/DT8 DALI
DA
driver
DA
Motion /Presence sensors with mains voltage contact
L´
Up to 25 drivers
~
~
DT6/DT8 DALI
DA
driver
DA
L´
Passive MCU SELECT
N L DA-DA+
17
Application guide MCU SELECT / SELECT TW Application example 3: Room with
room with partition walls
Description
FUNCTIONALITY · Central dimming and switching of all luminaires shall be
possible at both entry doors
of the room when separation wall is open · Independent control of each part
room shall be possible as soon as soon as the room
is split in two separate rooms by closing the wall
PRINCIPLE SETUP · A MCU SELECT is installed at both entry doors · Both MCU at
are connected to mains and act as DALI bus power supply (= active
MCUs) · While the DALI wires of both part rooms are interconnected when the
wall is open, the
DALI connection between both parts is interrupted at one pole when the wall is
closed · All luminaires are connected to mains and the DALI bus of the DALI
MCU of the
corresponding part room.
Installation scheme
230VAC
Active MCU
OPTIONS · If tunable white luminaires shall be controlled, please use MCU
SELECT DALI-2 EXC
TW or MCU SELECT DALI-2 TW
230VAC
Active MCU
18
Application guide MCU SELECT / SELECT TW Application example 3: Room with
room with partition walls
Installation hints
Safety · Switch off mains and DALI supply during installation ! · DALI must be
treated like mains voltage
Wiring · Max. total DALI wire length: 300m · Recommended DALI wire diameter
1,5mm² · DALI and mains voltage may be routed in the same cable
(e.g. NYM 5×1,5mm²) Hints: – Ensure correct polarity DA+/DA- when connecting
the
second MCU – Respect the max. number of luminaires per circuit breaker
Commissioning · To avoid that lights are switched on after a temporary mains
interruption please set turnkeys of all MCU to identical position A (=last
state) or position 2 (=OFF)
Possible system size · Max. 25 DALI drivers per active DALI MCU · Max. 4 DALI
MCU per system · Each Active MCU can power 1 passive MCU via DALI bus
Wiring diagram 3:
Active MCU SELECT
N L DA-DA+
DA+
DA-
L N
~
~
DT6/DT8 DALI
DA
driver
DA
~
~
DA
DA
Separation wall switch (contact open when wall is closed)
driver
DT6/DT8 DALI
driver
DT6/DT8 DALI
Up to 25 drivers
Up to 25 drivers
~
~
DA
DA
~
~
DT6/DT8 DALI
DA
driver
DA
Active MCU SELECT
N L DA-DA+
19
Application guide
MCU
SELECT
/
SELECT
TW
Application
example
4:
Room with room motion detectors
with
partition
walls
and
Description
FUNCTIONALITY · If separation wall is closed light is switched on individually
in each room part when
motion is detected and can then be dimmed and switch via the MCU of this room
part. · If separation wall is open light is switched on centrally for the
whole when motion is
detected by one of the sensors. If the room is occupied and the wall is open,
a central manual control of all luminaires is possible via both MCU.
PRINCIPLE SETUP · A MCU SELECT is installed at both entry doors · All MCU are
connected to mains (= active MCUs)
Luminaires of a room part are connected to the DALI bus of the MCU in this
room part · Mains supply of the luminaires and the MCU in a part room are
switched via the
motion detector in this part · When separation wall is opened the DALI Bus of
the part rooms are interconnected · When separation wall is opened the mains
output of the motion detectors are
interconnected
Active Installation scheme
MCU
230VAC
OPTIONS · If tunable white luminaires shall be controlled, please use MCU
SELECT DALI-2 EXC
TW or MCU SELECT DALI-2 TW
Active MCU
20
Application guide
MCU
SELECT
/
SELECT
TW
Application
example
4:
Room with room with motion detectors
partition
walls
and
Installation hints
Safety · Switch off mains and DALI supply during installation ! · DALI must be
treated like mains voltage Wiring · Max. DALI wire length (total for all room
parts): 300m · Recommended DALI wire diameter 1,5mm² · DALI and mains voltage
may be routed in the same cable
(e.g. NYM 5×1,5mm²) Hints: – Ensure correct polarity DA+/DA- when connecting
the
second MCU – Respect the max. number of luminaires per circuit breaker
and max. load at the switched sensor output
Commissioning · Fully automatic ON/OFF by motion detection:
Set turnkeys of all MCU to identical position C-F, or 0,1 · Semi automatic (=
Manual ON via MCU and automatic OFF
via Motion detector): Set turnkeys of all MCU to position 2
Possible system size · Max. 25 DALI drivers per room part · Max. 4 room parts
with one active DALI MCU each
Wiring diagram 4a :
Motion /Presence sensor with mains voltage contact
Active MCU SELECT
DA+
DA-
L
N
L´
N L DA-DA+
~
~
DT6/DT8 DALI
DA
driver
DA
~
~
DT6/DT8 DALI
DA
driver
Separation wall switch (contacts open when wall is closed)
Up to 25 drivers
DA
~
~
DT6/DT8 DALI
DA
driver
DA
~
~
DA
DA
Motion /Presence sensor with mains voltage contact
Up to 25 drivers
DT6/DT8 DALI
driver
Active MCU SELECT
N L DA-DA+
21
Application guide
MCU
SELECT
/
SELECT
TW
Application
example
4:
Room with room with motion detectors
partition
walls and
Wiring diagram 4b: dividable room with motion detectors, separate mains circuits for the part rooms
Motion /Presence sensor with mains voltage contact
Separation wall switch (contacts open when wall is closed)
Motion /Presence sensor with mains voltage contact
L´
L´
Active MCU SELECT
DA1+
DA1-
L1 N
L1´
N L DA-DA+
~
~
DT6/DT8 DALI
DA
driver
DA
Up to 25 drivers
A K1 B
~
~
DT6/DT8 DALI
DA
driver
DA
DT6/DT8 DALI
driver
Up to 25 drivers
DA
DA
~
~
DA
DA
~
~
A K3 B
A K2 B
DT6/DT8 DALI
driver
Active MCU SELECT
N L DA-DA+
DA2+
DA2-
L2 N L2´
22
Application guide MCU SELECT / SELECT TW
Questions and Answers
Q: How can I set an individual level / a individual CCT for automatic switch
on when motion is detected? A: Temporarily set the turnkey of all MCU to
position A, ensure that separation wall is open and the MCU are interconnected
via DALI and are powered up.
The adjust the brightness and the CCT to the desired levels and store this
level by a Double click to the rotary knob of the MCU. Finally set the turnkey
of all MCU to position B Q: As the of room parts are bigger, they can not be
covered by the detection area of a single motion detector, how can I increase
the number of detectors? A: If you need multiple detectors in one part room
just interconnect the Outputs with switched phase (L’) of the detectors Q:
What if the high number of drivers per part room exceeds the load capacity of
the switching contact of the motion detector? A: If the max. capacitive load
of the detector is not sufficient, please use a power conductor / power relay
in-between luminaires and load contact of the motion detector Q: What if the
room parts are connected to different phases and circuit breakers and may
therefore not be interconnected by the switch contact of the movable wall? A:
In this case you need additional power conductors, please see corresponding
wiring diagram Q: Can I use also daylight dependent control? A: If the
selected motion detectors have an integrated light sensor, it is possible to
set a brightness threshold directly at the sensors. That avoids an unnecessary
switch on if
sufficient daylight is available. A closed loop / daylight harvesting control
is not possible. Q: Can I use DALI sensors instead of the standard motion
detectors? A: No, the DALI MCU does not support other DALI control devices
such as DALI Sensors or DALI Push button couplers.
Q: Can I connect a DALI MCU to another DALI control system or a BMS solution?
A: No, the DALI MCU is a standalone control solution
Q: Is it possible to control more than 25 drivers with one MCU ? A: Yes. If
you need to control more luminaires, please use an external DALI power supply.
The DALI MCU should not be connected to mains but supplied out of DALI
(=passive
DALI MCU). Consider 10mA as DALI current consumption of the DALI MCU and 2mA
for each driver.
23
Application guide MCU SELECT / SELECT TW
Questions and Answers
Q: Can I mix/interconnect MCU SELECT and MCU TOUCH in the same installation?
A: In principle that is possible, as there may be some limitations concerning
the synchronization of MCU of different type, this combination is not
officially recommended
24
Application guide MCU SELECT / SELECT TW
Troubleshooting
Q: What can I do if some luminaires have a different dimming behavior than the
rest ? A: Most probably not all DALI drivers have ex-factory settings. Please
perform a RESET as described at the beginning of this application guide
Q: I have installed two MCU, why do the lights behave differently depending
which MCU I use? A: To ensure a complete synchronization, the MCU must be
interconnected and powered when configuration settings such as storing a
Switch On level or a Min level are done
Q: The MCU is not working, and lights stay always at 100%, what is the
possible root cause? A: Most probably the DALI bus voltage is missing, and the
luminaires are at System failure level. Please check DALI voltage with a
multimeter (typically: ~16V DC).
Possible root cause: The MCU has no mains supply or the DA+/DA- wires of
interconnected are mixed up at one MCU or the number of drivers / passive MCU
is too high
25
Application guide MCU SELECT / SELECT TW
Technical data
Input voltage range (AC) Power consumption Allowed wire diameter Protection
class Protection type Ambient temperature range Humidity range Max. total DALI
wire length Max. DALI output current* DALI input current** Dimming range CCT
setting range Dimensions (l x w x h) Net weight Lifetime
MCU SELECT DALI-2
MCU SELECT DALI-2 EXC TW
MCU SELECT DALI-2 TW
100-240V (50/60Hz) 0.65-2.7W 0.5-1.5mm² II IP 20 -20…+50°C 10-95%
100m@0.5mm² / 200m@1.0mm² / 300m@1.5mm² 65mA 10mA 1-100% —
80x80x53mm 162g
50.000h
100-240V (50/60Hz)
100-240V (50/60Hz)
0.65-2.7W
0.65-2.7W
0.5-1.5mm²
0.5-1.5mm²
II
II
IP 20
IP 20
-20…+50°C
-20…+50°C
10-95%
10-95%
100m@0.5mm² / 200m@1.0mm² / 300m@1.5mm² 100m@0.5mm² / 200m@1.0mm² / 300m@1.5mm²
65mA
65mA
10mA
10mA
1-100%
1-100%
2700-6500K
2700-6500K
81x81x54mm
80x80x53mm
133g
162g
50.000h
50.000h
*Mains supplied MCU (=active MCU) / **DALI supplied MCU (= passive MCU)
THANK YOU
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