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CLS Manuals
CLS MTD 44 universal LED driver
GB
INTRODUCTION
The CLS MTD 44 generates 3 output voltages (10V, 12V, 24V) and 3 different current settings (350mA,
700mA, 1050mA). Easy adjustable through dipswitch settings. For the DIM-input can be used: a standard 1-
10V controller (range 0-100%), a 100K potentiometer (range 0-100%), or a pulse switch (range 3-100%). A
short
pulse switches the LEDs on or off. The CLS MTD44 has fourfold protection: Thermal; short circuit; over voltage
andopen circuit.
Disorganized system when using pulse function
When parallel connecting a pulse switch on several drivers it can occur that the pulse length is exactly too
short or too long. On this critical border it can be that the drivers are not working in unison. It can be reset
without disconnecting the mains power.
Reset procedure:
• By long pressing the pulse switch the drivers always turn on, independently of the initial state.
• Give a short pulse and all the drivers are now off.
• By long pressing again all drivers turn on and ramp up in unison. We recommend pulse operation mainly
for fixtures in which each driver is regulated independently. Complete synchronous regulation is only
possible with a master-slave system where the master processes the pulse. We did not equip our drivers
with such a system.
IMPORTANT INFORMATION
• The CLS MTD44 must be installed by qualified electricians only!
• Switch off the power supply before installation, also when making any change in the secondary circuit.
• WATCH OUT: Check if the LED units to be connected are current or voltage type! If incorrectly connected,
they can be damaged!
• The CLS MTD44 is intended for indoor use only!
• Never connect more load than 20W at 230V (15W at 110V). If you do, the LEDs will flicker while dimming!
• The maximum sec. wire length is 10mtr (at max. Power).
• The CLS MTD44 is intended for indoor use only.
• The outputs and 1-10 Volt input are SELV and may never be combined with the mains-cables.
• Pulse operation only recommended for a single driver.
Unexpected behaviour when using 1-10V controller system
When controlling the driver with 1-10 Volt system it can occur, the 1-10 Volt controller delivers (or allows) a
spike that higher is than 12 volts. This spike triggers the driver in to ‘pulse switch mode’. Resulting in unex-
pected and unintended behavior of the LEDs. In case of symptoms like these, it is sufficient to clamp the out-
put of the control system with a 10 or 12 volts zener diode. (cathode to the positive.)
AFMETINGEN / MEAsUREMENTs
MTD44 driver
34 mm (w)
18,5 mm (d)
200 cm cable
34 mm (w)
12 mm (h)
200 cm cable
111 mm (d)
53 mm (w)
24 mm (h)
10 Volt
12 Volt
24 Volt
350 mA
700 mA
1050 mA
DIPswITCh INsTELLING / DIPswITCh sETTINGs
10 Volt
12 Volt
24 Volt
350 mA
700 mA
1050 mA
LET OP! / ATTENTION!
Standaard fabrieks instelling is 700 mA.
Wilt u een maximale lichtopbrengst voor
uw CLS MR16, dan dient u de driver op
1050 mA in te stellen.
Standard factory setting is 700 mA. If you
want to get the maximum light output out
of your CLS MR16, you need to set the
driver at 1050 mA.
