OSRAM Power Supply PS 30 - Manual (Page 2)

Page 2 of 2
Technical data
Operating voltage 10 … 24 V
DC
Output current per channel 350 mA
Output load range per channel 0 … 8 W at 24 V
DC
Max. power loss 2.22 W
Max. voltage drop (V
in
– V
out
) 0.55 V
Resolution 8 bits
DMX protocol DMX512-A standard
Max. line cross-section
(for connecting power supply and LED
outputs)
0.5 … 1.5 mm 2
Input reverse polarity protection Yes
Output short circuit protection Yes
Operating temperature -20 °C … +50 °C
Protection type IP 20
Weight 0.040 kg
Dimensions (L x W x H) 118 x 30 x 21 mm
Setting the DMX addresses
To be able to individually control the three LED outputs in a
DMX network, the dimmer is assigned three consecutive DMX
addresses (default setting: 1, 2 and 3), depending on the
particular application. Follow the operating instructions of the
control unit.
The DMX address for LED output 1 (= DMX start address)
can be set manually (default setting = 1). The following DMX
addresses are automatically assigned to LED outputs 2 and 3
(default setting: 2 and 3). Proceed as follows to set a different
DMX start address:
Note: The DMX start address can be set up globally for multiple
devices by connecting several OT DMX 3x350 DIM LI to the
same DMX network and performing the following procedure.
 Connect the dimmer to the control unit and switch on both.
‚ Set all DMX channel values to 0 (e.g. by using the sliders at
the DMX mixing desk).
ƒ Press pushbutton (C) for at least 1 s. The “DMX” LED
flashes. The dimmer starts to listen and waits for a DMX
configuration data frame (there is no timeout). If necessary,
press pushbutton (C) for less than 1 s to abort listening
mode.
„ Set one DMX channel (e.g. channel 3) to a value greater
than zero. The DMX start address associated to LED output
1 will be set to 3. The consecutive DMX addresses (chan-
nels 4 and 5) are automatically associated with LED outputs
2 and 3. The “DMX” LED stops flashing after the assignment
is made.
Reset the DMX start address to 1
 Press pushbutton (C) for at least 1 s. The “DMX” LED
flashes.
‚ Press pushbutton (C) again for at least 1 s. The “DMX” LED
goes out.
The DMX start address of the dimmer is reset to 1.
Operation
Installation (cont.)
Appendix
Connecting the DMX components
Control unit (OSRAM EASY DMX SO or equivalent):
“DMX In” (B)
Optionally, up to 32 dimmers (depending on cable length and
cable quality) can be connected in a row without DMX signal
repeater.
1 2 3 4
> 1 s
1
DMX Address
Setting
DMX
2 3 4 5 … … 1 2 3 4 5
LED output 3
LED output 2
LED output 1
The CE requirements as per EN 55015, EN 61547 and
EN 61347 are fulfilled.
Conformity with the relevant EU directives is
confirmed by the CE symbol.