Description Purpose and application

Description Purpose and application
Description
Purpose and application
The DALI MCU digital potentiometer controls up to 25 DALI
electronic control gears and enables the manual operation of
luminaires with a DALI interface.
DALI MCU
The potentiometer is mounted in flush device boxes.
Function
The potentiometer converts rotations of and pressure on the
rotary knob into DALI commands.
By switching multiple DALI MCU in parallel, the number of control locations or the number of controllable luminaires can be increased. If multiple potentiometers are switched in parallel, the
commands of the potentiometer actuated last apply. Automatic
synchronization makes it possible to change the control location
without disturbing effects (e.g. brightness fluctuations).
The DALI MCU can be supplied directly from the DALI control
line (= passive operation) or can deliver the required control
current itself when connected to the mains voltage (= active
operation).
Design
The potentiometer is made up of the following components:
• Rotary potentiometer (A)
Digital potentiometer
Operating instructions
A
• Connections (B)
–– Control line (da+, da–)
–– Neutral conductor (N)
–– Phase (L)
• Housing with rotary knob (C)
da+ da- L
N
B
C
Operation
Symbols
Rotary knob
Luminaire on
Rotary knob
Luminaire off
Switch on
Luminaire
flashes
Switch off
Confirmation
of the setting
Short press
(< 0.5 s)
Manual
dimming
Long press
Double-click
1x
1
2
3
1x
1
2
3
2x
1
< 30 s
2
max
3
1
2
3
max
1
2
Switching luminaire on and off
3
Via short press on rotary knob.
A
IV 2009
max
DALI_MCU_ba0904en_we1.01.indd
1
2
OSRAM GmbH
Kunden Service Center
Customer-Service-Center (CSC)
3
1x
1
B
2
1
Steinerne Furt 62
86167 Augsburg
Germany
3
4
2
3
...
1x
4
Changing the brightness
Tel : +49 (0) 1803 677 - 200
> 30 s
1
(kostenpflichtig
/ charges apply)
Fax.: +49 (0) 1803 677 - 202
1x
2
3
1
2
3
4
5
To increase the brightness: Turn the rotary knob to the right.
To reduce the brightness: Turn the rotary knob to the left.
1x
www.osram.com
1
www.osram.de
40083211897216
4008321189721
2
3
4
5
F Continued on the back page!
1
2
4
3
Defining the minimum brightness value
Operation (cont.)
1x
1
2
3
3
1x
4
5
Switch on if necessary.

T
urn the rotary knob to the left to the minimum brightness.
‚
T
urn the rotary knob to the required brightness.
ƒ
P
„
ress the rotary knob and keep it there for approx. 10 s.
Confirmation: Luminaire flashes.
…
Deleting the minimum brightness value
1x
1
1
2x
1
< 30 s
2
2
2
3
Switch off if necessary.

P
‚
ress the rotary knob and keep it there for approx. 10 s.
Confirmation: Luminaire flashes.
ƒ
max
3
3
Defining the switch-on brightness
1x
1
1
max
1
2
A
2
2
1
3
3
2
4
Switch on if necessary.

Set the desired brightness.
‚
Double-click on the rotary knob.
ƒ
Confirmation: Luminaire flashes.
„
1x
max
3
3
...
B
1x
1
2
1
1
2
1
3
3
2
2
max
4
5
Switch off if necessary.

Double-click on the rotary knob.
‚
C
ƒ
onfirmation: Luminaire changes to the maximum bright-
1x
3
4
3
Deleting the default value for the
switch-on brightness
ness.
Appendix
Technical data
1x
11
2x
1
< 30 s
2
22
33
4
4
1x
5
3
1x
1
A
2
4
3
5
max
1
1
< 30 s
1
1
1
< 30 s
2
3
2
3
2
3
2
3
2
3
2x
...
B
2x
Operating voltage
230 V AC, 50-60 Hz
Maximum total length of
signal line
300 m
DALI connection
Max. 25 DALI ECG with one active
DALI MCU
Maximum power consumption
3 W
Permissible line cross
section
1 – 4 mm²
Permissible ambient
temperature
0 °C to 50 °C
Protection type
IP 20
Protection class
II
Dimensions
Flush-mounted part (Ø x H):
51 x 32 mm
Mounting plate (L x W):
71 x 71 mm
A
max
...
B
Dimensions
4
A
max
11
22
33
...
50
B
32
71
1
2
3
da+ da-
L
N
51
71
The requirements as per EN 60928 und EN 61547 are fulfilled.
Conformity with the relevant EU directives is
confirmed by the CE symbol.
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