User Instructions

DC/DC50SD-SEP

v.1.0

DC/DC 5A step down DC/DC converter

with separation

Edition: 1 from 21.11.2017

Supercedes the edition: ---------

The module’s features:

 The DC/DC voltage - step down converter

 Example of use: voltage- step down from 24V to

12V DC

 The input voltage range: 20÷28V DC

 The output voltage range: 12V DC

 The maximum load current 5A (60W)

 Protections:

 Short-circuit protection SCP

 Overload protection OLP

 Over voltage protection OVP

 Galvanic separation between input/output (IN-AUX)

 High efficiency: 87%

 Optical LED indication

 Warranty – 2 years from the production date

 Mounting:

 Mounting strip with adhesive tape

 Mounting screws

Example of use of the DC/DC50SD-SEP step down DC/DC converter with separation.

Schematic diagram of the converter operation.

Converter output voltage: 12V DC, 5A max.

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DC/DC50SD-SEP v.1.0 DC/DC 5A step down DC/DC converter with separation EN Edition: 1 from 21.11.
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1. Technical description The DC / DC 5A (DC / DC50SD-SEP) buck converter is used to reduce the voltage from 20V ÷ 28V DC at the converter input to 12VDC at the output. The maximum load current is IMAX=5A (PMAX= 60W). The module is galvanically isolated between the input and output (IN-AUX). 1.1. Block diagram (Fig. 1). Fig.1. Block diagram of the converter’s module. 1.2. Description of components and connectors (Fig. 2, Table 1, Table 2). Table 1. No. [Fig.
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1.3. Technical parameters: - Electrical parameters (Table 3) - Mechanical parameters (Table 4) Table 3.
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2.2. Installation procedure. 1. Mount the enclosure (cabinet, etc.) and lead cables through cable glands. 2. Mount the DC/DC converter with adhesive tape or mounting screws. 3. Supply DC voltage to the + IN, -IN terminals with correct polarization. 4. Connect the receivers’ cables to the +AUX, -AUX connectors of the terminal block on the module’s board. 5. Switch on the DC voltage (the red IN LED should be permanently illuminated, the AUX green LED should be permanently illuminated). 6.