Fagor DDS Series Hardware Manual page 63

Observe the PF version on the versions label. Depending on this version, it
will be possible to connect the APS-24 or not to the DC BUS of the DDS
system with XPS regenerative power supplies.
F. H2/22
Auxiliary power supply, APS-24. Version label.
INFORMATION. It will not be necessary to install external protection fuses
i
in these power lines of the auxiliary power supply. They are already
integrated in the power supply itself.
Remember that the purpose of connecting an auxiliary power supply APS-
24 to the DC BUS of a DDS system is to ensure the supply to all the control
circuits of the power supply and of the drives connected to the DC bus in
case of a mains power outage in the auxiliary power supply ensuring a
controlled stop of the moving axes instead of braking out of control by
friction.
Bear in mind that although XPS power supplies come with an internal
auxiliary power supply offering 3 outputs with 24 V DC and a total of 8 A,
192 W, this power may not be enough to feed the control circuits of all the
modules connected or other elements (e.g. a fan). That is why it may be
necessary to also install an APS-24 auxiliary power supply to guarantee all
the power needed.
The APS-24 auxiliary power supply offers 3 outputs with 24 V DC and a
total of 10 A, 240 W.
For further information about the auxiliary module APS-24, see chapter 4.
AUXILIARY MODULES in this manual.
CHOKE connection terminals
Regenerative power supplies XPS-25 and XPS-65 offer the connection
terminals labeled CH1 and CH2 at the bottom of the module for connecting
the choke. See figure F. H2/17 and figure F. H2/18.
This inductive device is a must to limit the current circulating from the power
bus to mains.
FAGOR supplies the choke XPS-25 and choke XPS-65-A for this
application.
Use cables with the maximum section allowed 16 and 50 mm² y and shorter
than 2 meters (6 feet). They do not have to be shielded.
T. H2/18 Feed-through terminal blocks for connecting the choke. Technical
data.
Connector data
Min./max. tightening
torque (N·m)
Screw thread
Min./max. section (mm²)
Rated current In (A)
WARNING. The choke is an absolute must for the operation of a regenerative
power supply. Installing the coil with an inductance other than the choke
recommended in table T. H2/14 may cause severe damage to the unit.
XPS-25 CHOKE XPS-65-A CHOKE
2.0/2.3 6.0/8.0
M5
0.5/16 16/50
76
  Power supplies
2.
DDS
M6
HARDWARE
150
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