Mains Voltage - Fagor DDS Series Hardware Manual

   Selection criteria
3.
T. H5/12 Power supplies of the FAGOR catalog. They indicate: Rated power, admitted mains voltage and
RANGE OF FAGOR POWER SUPPLIES
5.
NON
REGENERATIVE
REGENERATIVE
4.
T. H5/13 Power of the input transformer.

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
224
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
DDS 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
HARDWARE
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.
Ref.1912
· 220 ·
The range of FAGOR power supplies that may be selected is:
whether it outputs 24 V DC or not.
Model
PS-25B4
PS-65A
Model
XPS-25
XPS-65
Model
RPS-20
RPS-45
RPS mode
RPS-75
RPS-80
RPS-20
RPS-45
RB6 mode
RPS-75
RPS-80
Use the following sheet to calculate the input transformer, and the section of the mains cable.
[ +
1
Output power
S1
25 kW
65 kW
Output power
S1
25 kW
65 kW
S1/S6-40%
output power
20.4/26.5 kW
45.4/59.0 kW
75.0/97.5 kW
80/104 kW
20.4/26.0 kW
45.4/55.0 kW
75/97 kW
80/97 kW
] *
2 1.05
kVA
Input voltage Integrated 24V
power supply
400-460 V AC Yes
400-460 V AC No
Input voltage Integrated 24V
power supply
400-460 V AC Yes
400-460 V AC Yes
Input voltage Integrated 24V
power supply
400-460 V AC Yes
400-460 V AC Yes
400-460 V AC Yes
400-460 V AC Yes
400-460 V AC Yes
400-460 V AC Yes
400-460 V AC Yes
400-460 V AC Yes
=
4
kVA