Selection criteria
5.
224
Ref.1912
DDS
HARDWARE
· 220 ·
3.
The range of FAGOR power supplies that may be selected is:
4.
Use the following sheet to calculate the input transformer, and the section of the mains cable
.
T. H5/12 Power supplies of the FAGOR catalog. They indicate: Rated power, admitted mains voltage and
whether it outputs 24 V DC or not.
T. H5/13 Power of the input transformer.
NON
REGENERATIVE
Model Output power
S1
Input voltage Integrated 24V
power supply
PS-25B4 25 kW 400-460 V AC Yes
PS-65A 65 kW 400-460 V AC No
REGENERATIVE
Model Output power
S1
Input voltage Integrated 24V
power supply
XPS-25 25 kW 400-460 V AC Yes
XPS-65 65 kW 400-460 V AC Yes
Model S1/S6-40%
output power
Input voltage Integrated 24V
power supply
RPS mode
RPS-20 20.4/26.5 kW 400-460 V AC Yes
RPS-45 45.4/59.0 kW 400-460 V AC Yes
RPS-75 75.0/97.5 kW 400-460 V AC Yes
RPS-80 80/104 kW 400-460 V AC Yes
RB6 mode
RPS-20 20.4/26.0 kW 400-460 V AC Yes
RPS-45 45.4/55.0 kW 400-460 V AC Yes
RPS-75 75/97 kW 400-460 V AC Yes
RPS-80 80/97 kW 400-460 V AC Yes
RANGE OF FAGOR POWER SUPPLIES
MAINS VOLTAGE
The FAGOR DDS system requires a mains voltage between 400 and 460 V AC
TRANSFORMER
A power transformer or auto-transformer must be used
NOTE. When using an isolating transformer, the secondary must have a star connection and its mid
point must be accessible so it can be connected to ground. This means that the output voltage of the
transformer/autotransformer is maintained for the indicated apparent power.
Note that if the system
has an
XPS power supply, the rated power Pm of cell (2) of the previous expression corresponds to
the sum of the Pn's of all the asynchronous spindle motors of the system, whose value is the result
of applying the expression
Pn = 1.4·Pmax for each of them and then adding them all. Pmax will be
the motor's maximum braking power and it may be, in general, close to the power of the
asynchronous spindle motor in S6.
If it is a PS power supply, cell (2) will register the value obtained
from the table
F. H5/7, table F. H5/8 or table F. H5/9 accordingly.
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