Fagor DDS Series Hardware Manual page 68

  Power supplies
2.3 Regenerative regulated power supplies
When referring to regenerative regulated power supplies (step-up or boost
power supplies in RPS mode), we use models RPS-80, RPS-75, RPS-45
and RPS-20. These also offer an unregulated RB6 mode that lower the heat,
stress, noise and disturbances generated in the system and, particularly, on
the motors.
They all admit a line voltage between 400 (1-10 %) V AC and 460 (1+10 %)
V AC and a mains frequency of 50/60 Hz.
2.
In RPS mode, they can consume and return to mains sinusoidal power
continuously with a near-1 power factor and, unlike XPS power supplies, the
bus voltage of these power supplies is programmable and independent from
line voltage; i.e. for the same consumed power, the RPS power supplies can
have a higher bus voltage than the XPS power supplies.
When using a transformer, it is preferable to install an RPS power supply in
RB6 mode (rectifier) rather than an XPS power supply.
These power supplies look like this on the outside:
A B
D
C
94
F. H2/26
Regenerative regulated power supplies.
A. RPS-80, B. RPS-75, C. RPS-45, D. RPS-20.
See table T. H2/23 to get information on data regarding power and
consumption of these modules in both operating modes.
DDS
INFORMATION. They all integrate an auxiliary 24 V DC, 8 A power supply
HARDWARE
i
to feed its own control circuits and those of the modular drives connected to
them. Consequently, they will not require the auxiliary power supply APS-24
to perform this function unless more than 8 A are required.
Ref.1912
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