SKS Sweden Bonfiglioli Vectron ACTIVE CUBE ACU 201 Series, Operating Instructions Manual, Page: 225 / 260

09/08
Operating Instructions ACU
223
The material used for the rotor winding of the motor is taken into account via the pa-
rameter
Temperature coefficient
466. This value defines the change of the rotor re-
sistance as a function of the temperature for a certain material of the rotor winding.
Typical temperature coefficients are 39%/100 °C for copper and 36%/100 °C for
aluminum at a temperature of 20 °C.
The temperature characteristic within the software is calculated via the aforemen-
tioned temperature coefficient and the parameter
Temperature adjustment
467. The
adjustment temperature enables an additional optimization of the rotor time constant
alongside the parameter
Rated slip correction factor
718.
Parameter Settings
No. Description Min. Max. Fact. sett.
466 Temperature coefficient 0.00%/100 °C 300.00%/100 °C 39.00%/100 °C
467 Adjusting temperature -50 °C 300 °C 35 °C
The synchronization of the rotor time constant as a function of the winding tempera-
ture can be adjusted. The default values should normally be sufficiently precise so
that neither an adjustment of the rotor time constants via the parameter
Rated slip
correction factor
718 nor an adjustment of the temperature synchronization via the
parameter
Temperature coefficient
466
is necessary. If an adjustment is necessary,
please remember that the rotor time constant is calculated by the guided commis-
sioning via the machine data. The
Adjusting temperature
467 is to be set to the
temperature at which the optimization of the extended machine data was carried out.
The temperature can be read out via the actual value parameter
Winding tempera-
ture
226 and can be used in the optimization for the parameter.
Operating Instructions ACU 223 09/08