FIG.: 2
230V AC
10V to 48 V DC
KNX
BUS
unsuitable as they may already contain
control electronics for constant current,
which may not be compatible with control
devices as the CHROMOFLEX Pro .
We always recommend switching power
supplies in power supply technology! Sui-
table power supplies are available from us.
One power supply can be used for several
units in parallel, if the maximum output
power of the supply is observed. For wi-
ring cables with a cross section of max.
2.5mm² can be used.
The modules should be provided with
min. 10 Volts; the maximum voltage of the
CHROMOFLEX Pro KNX is 48 Volts.
6. CONNECTION
Please note that the LEDs have to be
connected in a de-energised state of the
dimmer!
NOTES ON THE SELECTION OF THE POW-
ER SUPPLY:
Important: The power supply must have
appropriate pulse load. Unstabilized or too
weak power supplies may lead to unwan-
ted flickering effects in the color changes.
Important: The module must be operated
with a power supply, that is suitable for the
used LEDs! Improper power supplies may
lead to malfunctions, unwanted flickering
effects, destruction of LEDs, destruction of
electronics or in worst case to overheating.
We strongly recommend using high-qua-
lity (stabilized) switching power supplies!
We strongly advise against the use of
unstabilized cheap power supplies! Also
special „LED“ power supplies are usually
NOTES / ADDITIONS
At the output channels please
• avoid reverse polarity
• note correct voltage
• ensure that the power per output channel
is not exceeded
• never connect current-controlled LEDs
(CC)
Note:
We deliver flexible stripes on reels in
length of max. 6 metres, with a power
consumption of about 1 Amperes at 24
Volts per color. The „CHROMOFLEX Pro
KNX CV“ 4-channel version is able to con-
trol up to 2.2 amperes per channel (Fig. 3).
It is possible to use 1-channel with 8.8 am-
peres, but it is very important to bridge all
channel outputs (Fig. 4).
For the use of „Channel 1 Tunable Whi-
te“ the channels 1 and 2 are bundled to-
gether for a color temperature, as well as
the channels 3 and 4 for the second color
temperature.
6.1 CHROMOFLEX PRO KNX CV
„CV“ is an abbreviation for constant voltage.
This model does not have any internal
current regulator. Supply voltage is pas-
sed through and the voltage of the power
supply must match the voltage of the LED
stripe. So if the LED strip requires 12 volts,
this must also be the output voltage of the
power supply.
Note:
LED stripes of 12 Volts, 24 Volts and 48
Volts are offered on the market. Depending
on the cable length the used LEDs might
need very high currents.
FIG.: 3
FIG.: 4
W/A
B
G
R
4
3
2
1
CH
Imax. 4x2,2A
ta: 0-50°C
tc:80^C
10..48VDC
PWR
IN
COM
max. 32A
W/A
B
G
R
4
3
2
1
CH
Imax. 4x2,2A
ta: 0-50°C
tc:80^C
10..48VDC
PWR
IN
COM
max. 32A
How to avoid malfunctions or fire risk:
• Do not affect air circulation by covering
the unit.
• Do not attach anything to the unit e.g. de-
coration items etc.
Do not let your children play unattended
with electrical equipment. Children cannot
always perceive possible dangers correctly.
7. OPERATION
Please operate this unit only, when it
is working properly. In case of an error,
switch off the unit immediately. Do not
operate the unit, until the unit was verified
electronically by a qualified electrician.
A case of error is:
• visible signs of damage on the unit
• the unit is not working properly
• fume rising or crackling sounds from the
unit
• visible signs of overheating
Maintenance and service which require
access to live components inside the unit
must be carried out by an authorized elec-
trician.
WARNING: Danger of life! Risk of electric
shock!
