Lenze i950

13.7.2 Synchronous motor (SM): Compensate temperature and current inuences
The
properes of the permanent magnets of permanently excited synchronous motors
depend on the temperature and the amperage. The relaonship between motor current and
resulng torque changes correspondingly.
The inuences of the temperature and the amperage on the magnesaon can be taken into
account by the motor control and hence be compensated for.
•
T
o compensate for the temperature dependence of the magnets, the temperature coe-
cient (kT) of the permanent magnet must be entered in object 0x2C03:003 (linear char
ac-
terisc).
•
T
o compensate for the current dependence of the magnets, mulple grid points of a char-
acterisc must be entered in the following object (non-linear characterisc):
Parameter
Address Name / seng range / [default seng] Info
0x2C06:001 Grid points for magnet characterisc (current): x1 =
i01/iN
0 ... [0] ... 1000 %
Characterisc for the dependency of the magnec
ux on the acve
motor current.
0x2C06:002 Grid points for magnet characterisc (current): y1 =
kT01/kTN
0 ... [100] ... 1000 %
0x2C06:003 Grid points for magnet characterisc (current): x2 =
i02/iN
0 ... [100] ... 1000
%
0x2C06:004 Grid points for magnet characterisc (current): y2 =
kT02/kTN
0 ... [100] ... 1000
%
0x2C06:005 Grid points for magnet characterisc (current): x3 =
i03/iN
0 ... [200] ... 1000 %
0x2C06:006 Grid points for magnet characterisc (current): y3 =
kT03/kTN
0 ... [100] ... 1000 %
0x2C06:007 Grid points for magnet characterisc (current): x4 =
i04/iN
0 ... [415] ... 1000 %
0x2C06:008 Grid points for magnet characterisc (current): y4 =
kT04/kTN
0 ... [72] ... 1000 %
Conguring the motor control
Fine adjus
tment of the motor model
Synchronous motor (SM): Compensate temperature and current inuences
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