Specifications

IN - 6 Installation Ver. 0002
IN.2.4 CONNECTION TO THE EXTERNAL BALLAST RESISTOR
If the energy to be dissipated when braking the motors is too high, an external ballast resistor
must be installed. The Fagor modules "RM-15" and "ER" are designed for this purpose. See
the section on Resistor Modules: RM-15, ER" of the chapter EM.
To know whether this module is necessary or not on your machine, refer to the relevant
section of the DS chapter.
Electrical configurations and Ohm value.
The Ohm value of the external Ballast resistor must be the same as that of
the internal resistor of that module.
NEVER connect an external resistor in parallel with the internal Ballast
resistor. It may cause severe damage to the system.
Compact Drives MUST NEVER be connected to the RM-15 module.
C
ONTROL
L-
L+
R. int
Configuration
for internal
resistor
Configuration
for external
resistor
R. ext RM-15
PS
XPS
L+ReRi
L-
L+
R. int
PS
XPS
L+ReRi
C
ONTROL
ER
PS-25x, XPS-25 18 Ohms
1.5 kW RM-15
950 W ER-18/1100
PS-65A, XPS-65 9 Ohms
3 kW RM-15 // RM-15
1.9 kW ER-18/1100 // ER-18/1100
SCD/ACD 1.15 41 Ohms 300 W ER-43/350
SCD/ACD 1.25 24 Ohms 650 W ER-24/750
SCD/ACD 2.50 12 Ohms 1.3 kW ER-24/750 // ER-24/750
SCD/ACD 2.75 9 Ohms
3 kW RM-15 // RM-15
1.9 kW ER-18/1100 // ER-18/1100