DVP432 User Manual, 59300088, rev004 Introduction •2
Introduction
General
The DVP432 is a power supply for the EASITM rack
installations. It features enhanced EMC protection, output
voltage fine-tuning and stabilisation. Two logically controlled
long life fans gives the unit optimal cooling and thus further
increased reliability.
The DVP432 is using the primary switch mode technology
providing a wide input voltage range, high efficiency and
reliability. It is short circuit and over temperature protected and
it includes the PFC (Power Factor Correction). Additionally,
the outputs are diode protected to allow two or several units to
be connected in parallel to implement backup functions. The
DVP432 also features fine-tuning capabilities and enhanced
stability for all of the three output voltage circuits.
NOTE! When two or several DVP power supplies are connected in parallel
to feed a common system it is especially important that the voltages are
fine-tuned so that the currents drawn from the voltage circuit in question
spreads evenly between the feeding supplies. This can be verified by
comparing the “Current (A)” values between power supplies used. See the
configuration displays for more information.
The specified output voltages and currents per circuit are 25V /
8A, 12.5V / 5A and 6.3V / 10A. These voltages are connected
to the EASITM -system via the DVX002 installation frame, so
no connection cables are needed. If an output has overload, the
built-in current limiting function begins to take effect at 25V /
9A, 12.5V / 5.5A and 6.3V / 12A. The 12.5V and 6.3V current
is drawn from the 25V output, so note that the total maximum
available power from all 3 outlets must not exceed 200W. All
the outputs are short circuit protected.
