Fagor DDS, Hardware Manual

Page: 32 / 386

   Power supplies
94
2.
POWER SUPPLIES
Non
-re
gen
erative pow
er
su
ppli
es
32
DDS
HARDWARE
Ref.1310
2.1 Non-regenerative power supplies
When referring to non-regenerative power supplies, we'll use PS-25B4
and PS-65A. They all admit a voltage range between 400 to 460 V AC.
They are:
The PS-25B4 supplies 25 kW and includes an internal auxiliary 24 V DC
power supply for the control circuits of the modular drives. The over-volt-
age and ballast alarm activation levels are the ones of the power supplies
that admit 460 V AC. The
PS-65A supplies 65 kW and always needs an
auxiliary power supply APS-24 for the control circuits of the modular
drives.
F. H2/1
Non-regenerative power supplies: A. PS-25B4, B. PS-65A.
A B
L+ Re Ri L+ Re Ri
L1 L2 L3
L1 L2 L3