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V-RTU2000 Series
Veesta - Remote Terminal Unit
Technical Specification Manual
Chapter 4 -
4.1
General
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Power Unit
The quality of power supply unit, directly affects the reliability of
entire system, and the more it must reach the hazardous electrical
environment need.
The PS card of V-RTU2000 Series is designed in 2 stages
conversion, which is the core of the entire power unit with 70% to
90% of conversion efficiency will surely reduce the heat efficient of
the system, providing wide input voltage range, from DC 24V~ DC
75V, AC 85V~AC 265V, to sustain the variations of power source at
utility site. Between the input and output isolation, designed with
2500Vrms Voltage isolation, also providing the plug-in type in
designing the power supply unit. The entire power source is featuring
for it in Plug-In design.
The power unit of V-RTU2000 Series is consisted of the followings:
DC 24V/DC 5V & 24V PS Card: Power supply card, is designed
in DC 12V~75V input and DC 5V (10W), DC 24V (3W) output.
Connecting with the backplane it is linking with 48-pin DIN
connector, which provides DC 5V working power for all Cards and
DC 24V relay driving power for HDO Card.
AC 220V/DC 5V & 24V PS Card: Power supply card, is designed
in AC 85V~265V or DC 65V~375V input and with DC 5V (10W),
DC 24V (3W) output. Connecting with the backplane it is linking
with 48-pin DIN connector, which provides DC 5V working power
for all Cards and DC 24V relay driving power for HDO Card.
Chapter 4 - Power Unit
Page 39 of 90
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