2 - Fagor Automation

Terminal strip to connect the Ballast resistor
The power supply is supplied from factory with a wire jumper between terminals
Ri and L+. This configuration of the power supply means that it
comes from the factory with its internal Ballast resistor.
However, if with this internal resistor it is not possible to dissipate enough
power (e.g. when braking), the configuration must be modified so the
power supply can work with an external ballast resistor capable of dissipating
that energy. Remove the wire between terminals Ri and L+ and
connect the proper external resistor between terminals Re and L+. See
the diagram in the figure.
Removing the jumper between Ri and L+ and not connecting an external
ballast resistor generates error code E215 or E304 on the display. On PS-
25B4 power supplies, the power bus will not be charged.
Here is a graphic representation of the two possible configurations:
Configuration for connecting the
internal Ballast resistor
PS-25B4
PS-65A
R.int
L-
CONTROL
L+
F. H2/9
Ballast resistor connection configurations.
Configuration for connecting the
external Ballast resistor
R.ext
ER+TH-X/X
ER+TH-18/X+FAN
Ri Re L+ Ri Re L+
PS-25B4
PS-65A
R.int
The following table shows the values for gap, tightening torque (wire entry
holes) and other data regarding the screw-on terminals of the ballast
resistor according to power supply model:
T. H2/9 Technical data of the connection terminals of the ballast resistor.
Connector data PS-25B4 PS-65A
Gap (mm) 10.16 -
Min/max tightening torque (Nm) 1.2/1.5 2/2.3
Screw thread M4 M5
Min./max. section (mm²) 0.5/16 0.5/25
Rated current In (A)
Wire data
76 76
Length to strip (mm) 10 16
These power supply carry a protection against over-temperature which
triggers error E301 on the display and stops its operation when reaching
105 °C (221 °F).
L-
CONTROL
Power supplies
L+
POWER SUPPLIES
Non-regenerative power supplies 2.
DDS
HARDWARE
Ref.1307
43