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Cautiont:
After the motor data identification (p1910 > 0) has been selected, alarm A07991 is output and a motor data identifi-
cation routine is carried-out as follows at the next power-on command:
- current flows through the motor and a voltage is present at the drive converter output terminals.
- during the identification routine, the motor shaft can rotate through a maximum of half a revolution.
- however, no torque torque is generated.
Notice:
In order to permanently accept the determined settings they must be saved in a non-volatile fashion (p0971,
p0977).
Note:
When setting p1910, the following should be observed:
1. "With transfer" means:
The parameters specified in the description are overwritten with the identified values and therefore have an influ-
ence on the controller setting.
2. "Without transfer" means:
The identified parameters are only displayed in the range r1912 ... r1926. The controller settings remain
unchanged.
p1911
Number of phases to be identified / Phases to be ident
VECTOR
Can be changed: T
Data type: Integer16
P-Group: Motor identification
Min
1
Description:
Selects the number of phases to be identified.
The accuracy of the identification routine is higher if several phases are identified - however, the time required to
make the measurements also increases.
Values:
1:
2:
3:
r1912[0...2]
Identified stator resistance / R_stator ident
VECTOR
Can be changed: -
Data type: Floating Point
P-Group: Motor identification
Min
- [Ohm]
Description:
Displays the identified stator resistance.
Index:
[0] = Phase U
[1] = Phase V
[2] = Phase W
r1913[0...2]
Identified rotor time constant / T_rotor ident
VECTOR
Can be changed: -
Data type: Floating Point
P-Group: Motor identification
Min
- [ms]
Description:
Displays the identified rotor time constant.
Index:
[0] = Phase U
[1] = Phase V
[2] = Phase W
Siemens AG 2004 All Rights Reserved
SINAMICS G List Manual, Edition 12.2004
1 phase U
2 phases U, V
3 phases U, V, W
Data set: -
Units group: -
Max
3
Data set: -
Units group: RESISTANCE
Max
- [Ohm]
Data set: -
Units group: TIME_M3
Max
- [ms]
Parameters
Parameter list
Access level: 4
Function diagram: -
Unit selection: -
Factory setting
1
Access level: 4
Function diagram: -
Unit selection: -
Factory setting
- [Ohm]
Access level: 4
Function diagram: -
Unit selection: -
Factory setting
- [ms]
1-223
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