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Firmware version 1.10 - Document version 1.06 - eng
LTDVE1CH-40F | INSTRUCTIONS MANUAL
8.2. Power and logic supply
The power supply voltage must be 24 V DC. A dedicated and well-regulated switching power supply
is required. The external power supply must be capable of supplying the average and peak currents
needed for the light output.
Choose a power supply unit that limits its output current by design or use protecting fuses. The fuses
should be appropriately de-rated if mounted in an enclosure, as the inside temperature can be higher
than the ambient temperature.
Ensure that the wire gauge used for these power connections is appropriate for the current to be
drawn. The power supply low voltage and mains wiring should be separately routed.
Power supply is delivered to the controller using the screw terminals of connector P1. Connector
pinout, ordered from left to right, is listed in
Table 2: pinout of connector P
Number
Name
Description
Note
1
EARTH
Protective earth
2
+V LOG
Power supply. Positive terminal
Used for logic section
3
0V
Power supply. Negative terminal
4
+V PWR Power supply. Positive terminal
Used for power stages
Table 2: pinout of connector P1
The controller has two 24 V power terminals to independently supply the logic and power sections
inside the unit. They are named +V LOG and +V PWR. These two supplies can be connected
together or separately, as required by the application. They share the common negative terminal
named 0V. It must be connected to the power supply negative.
Ensure that the polarity of +V LOG, +V PWR and 0V is correct before applying power.
8.3. Light output
Light output is on the 2-way pluggable screw terminal socket named P2. The light output connection
must not be paralleled or grounded in any way.
The state of the output is shown by a yellow LED indicator on the top panel of the controller.
Make sure you set the correct current rating for the light before using it. See the light datasheet and
manual for details on this topic.
Connector pinout, ordered from left to right, is listed in
Table 3: pinout of connector P
Number
Name
Description
Note
1
LD+
Power channel output. LED anode
2
LD-
Power channel output. LED cathode
Table 3: pinout of connector P2
Please note that LED- is not the same as 0V.
