Fagor DDS Series Hardware Manual page 61

Terminal strip to connect the Ballast resistor
Regenerative power supplies also have a small Ballast circuit for dissipating
energy in case of an emergency. This emergency is issued when there is no
connection to mains and the Ballast circuit activating voltage is exceeded.
See table T. H2/14 in this chapter. Here are the two possible configurations:
Configuration of the
internal resistor
Ri Re L+
CONTROL
F. H2/20
Ballast resistor connection configurations.
Removing this jumper between Ri and L+ (factory setting) and not
connecting an external resistor between Re and L+ generates error code
E215 E304
or on the display.
The following table shows the values for gap, tightening torque, sections and
other interesting data of the feed-through terminals blocks for connecting the
Ballast resistor:
T. H2/17 Feed-through terminal blocks for connecting the ballast resistor.
Technical data.
Connector data
Min./max. tightening torque (N·m)
Screw thread
Min./max. section (mm²)
Rated current In (A)
These power supplies carry a protection against over-temperature which
E301
triggers error code on the display when reaching 105°C/221°F.
Derating curves
The power that may be dissipated through the internal ballast resistor
located inside the power supply XPS-25 depends on the ambient
temperature as determined by the derating curve.
INTERNAL BALLAST
POWER (W)
600
520
35/95
F. H2/21
Regenerative power supply, XPS-25. Derating curve.
The performance of the internal Ballast resistor of the regenerative power
supply XPS-65 does not suffer at high temperatures.
Configuration of the
external resistor
CONTROL
XPS-25
0.6/0.8
M3
0.2/4
32
XPS-25
°C/°F
45/113
  Power supplies
2.
Ri Re L+
XPS-65
0.6/0.8
M3
0.2/4
32
HARDWARE
Ref.1912
DDS
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