Siemens CU240B-2 Parameter Manual page 231

r1773[0...1] Motor model slip speed / MotMod slip
Access level: 4
Can be changed: -
Units group: 3_1
Min
- [rpm]
Description: Displays estimated (speed) signals of the motor model.
r1773[0]: Displays the estimated (mechanical) slip of the motor model.
r1773[1]: Displays the estimated input speed of the motor model.
Index: [0] = Slip speed estimated
[1] = Speed estimated
p1774[0...n] Motor model, offset voltage compensation alpha / MotMod offs comp A
Access level: 4
Can be changed: U, T
Units group: -
Min
-5.000 [V]
Description: Sets the offset voltage in the alpha direction; this compensates the offset voltages of the drive converter/inverter at
low speeds. The value is valid for the rated (nominal) pulse frequency of the power unit.
Note: The value is pre-set during the rotating measurement.
p1775[0...n] Motor model, offset voltage compensation beta / MotMod offs comp B
Access level: 4
Can be changed: U, T
Units group: -
Min
-5.000 [V]
Description: Sets the offset voltage in the beta direction; this compensates the offset voltages of the drive converter/inverter at
low speeds. The value is valid for the rated (nominal) pulse frequency of the power unit.
Note: The value is pre-set during the rotating measurement.
r1776[0...6] Motor model status signals / MotMod status sig
Access level: 4
Can be changed: -
Units group: -
Min
-
Description: Displays the internal status signals of the motor model:
Index 0: Changeover ramp between current and voltage models
Index 1: Changeover ramp for model tracking (encoderless induction motors only)
Index 2: Changeover ramp for zero frequency range (encoderless induction motors only)
Index 3: Transition ramp actual speed from speed setpoint to model value (encoderless FEM)
Index 4: Speed controller enable (encoderless FEM)
Index 5: Transition ramp between current and voltage models (encoderless FEM)
Index 6: Transition ramp for EMF deviation at PLL input (encoderless PESM)
Index: [0] = Changeover ramp motor model
[1] = Changeover ramp model tracking
[2] = Changeover ramp zero frequency encoderless ASM
[3] = Changeover ramp actual speed encoderless FEM
[4] = Enable speed controller encoderless FEM
[5] = Changeover ramp motor model encoderless FEM
[6] = Changeover ramp motor model encoderless PESM
Note: Indices 3 through 5 are only relevant in the case of encoderless control of separately excited synchronous motors.
© Siemens AG 2011 All Rights Reserved
SINAMICS G120 Control Units CU240B/E-2 Parameter Manual (LH11), 01/2011
Calculated: -
Scaling: -
Unit selection: p0505
Max
- [rpm]
Calculated: -
Scaling: -
Unit selection: -
Max
5.000 [V]
Calculated: -
Scaling: -
Unit selection: -
Max
5.000 [V]
Calculated: -
Scaling: -
Unit selection: -
Max
-
Parameters
List of Parameters
Data type: FloatingPoint32
Data set: -
Factory setting
- [rpm]
Data type: FloatingPoint32
Data set: DDS, p0180
Factory setting
0.000 [V]
Data type: FloatingPoint32
Data set: DDS, p0180
Factory setting
0.000 [V]
Data type: FloatingPoint32
Data set: -
Factory setting
-
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