Technical data

Drive functions
7.1 Servo control
Function Manual
Function Manual, 06/2012, 6SL3097-4AB10-0BP4
159
Table 7- 14 Data determined using p1960 for synchronous motors (rotating measurement)
Determined data Data that are accepted (p1960 = 1)
r1934 q inductance identified -
r1935 q inductance identification current -
Note:
The q inductance characteristic can be used as basis to manually determine the data for the current controller adaptation
(p0391, p0392 and p0393).
r1937 torque constant identified p0316 motor torque constant
r1938 voltage constant identified p0317 motor voltage constant
r1939 reluctance torque constant identified p0328 motor reluctance torque constant
r1947 optimum load angle identified p0327 optimum motor load angle
r1969 moment of inertia identified p0341 Motor moment of inertia
* p0342 ratio between the total moment of inertia and that of
the motor
+ p1498 load moment of inertia
r1973 Encoder pulse number identified -
Note:
The encoder pulse number is only determined very imprecisely and is only suitable for making rough checks (p0408). The
sign is negative if inversion is required (p0410.0).
r1984 Pole position identification angular difference p0431 Angular commutation offset
Note:
r1984 indicates the difference of the angular commutation offset before being transferred into p0431.
&DEOH
0RWRU
5
&
&DEOH
&DEOH
S S
S>0@
S>0@
S>0@ S>0@ S>0@
S>0@
0RWRU0RGXOH
/
˰6 ˰5 5
0
/
/
55
6
Figure 7-19 Equivalent circuit diagram for induction motor and cable