Siemens SINAMICS S120 Function Manual page 161

For operation without encoders or with encoders without position information, a pole position
identification must be carried out (see the chapter on pole position identification for further
details).
Typical applications include direct drives with torque motors, which are characterized by high
torque at low speeds. When these drives are used, gear units and mechanical parts subject
to wear can be dispensed with if the application allows this.
Temperature protection can be implemented using a temperature sensor (KTY/PTC). In
order to achieve a high torque accuracy, we recommend that a KTY temperature sensor is
used.
Table 4- 6
Parameter
p0304
p0305
p0307
p0310
p0311
If the torque constant k
can calculate this value from the rated motor data (index n) or from the stall current I
stall torque M
=
Table 4- 7
p0314
p0316
p0320
p0322
p0323
p0325
p0327
p0328
p0329
P0341
p0342
Drive functions
Function Manual, (FH1), 10/2008, 6SL3097-2AB00-0BP5
4.16 Instructions for commissioning permanent-magnet synchronous motors
Motor data
Description
Rated motor voltage
Rated motor current
Rated motor power
Rated motor frequency
Rated motor speed
is not stamped on the rating plate or specified in the data sheet, you
T
as follows:
o
=
π
. .
Optional data
Parameter
Motor pole pair number
Motor torque constant
Motor rated magnetization
current/short-circuit current
Maximum motor speed
Maximum motor current
Motor pole position information
Optimum motor load angle
PE spindle, reluctance torque
constant
Motor pole position identification
current
Motor moment of inertia
Ratio between the total
motor moment of inertia
If this value is not known, a "0" can also be
entered. Using this value, the stator leakage
inductance can be more precisely calculated
(p0356, p0357).
-
-
-
-
=
Description
Remark
Remark
-
-
This is used for the field weakening
characteristic
Maximum mechanical speed
De-magnetization protection
-
-
-
-
For speed controller pre-control
-
Vector control
and
o
161