Drive: Commutation Angle Incorrect (Motor Model); Drive: Commutation Angle Incorrect (Pole Position Identification) - Siemens SINAMICS S210 Operating Instructions Manual

Faults and alarms
13.2 List of faults and alarms
Remedy: - correct the motor data.
- check the motor configuration.
- correct the current limits (p0640, p0323, p1603).
- reduce the induction motor load.
- if required, use a larger Motor Module.
F07412

Drive: Commutation angle incorrect (motor model)

Message value: %1
Drive object: All objects
Reaction: ENCODER (NONE, OFF2)
Acknowledge: IMMEDIATELY
Cause: An incorrect commutation angle was detected that can result in a positive coupling in the speed controller.
Possible causes:
- the phase sequence of the output phases for the motor is incorrect (e.g. the phases are interchanged).
- the motor encoder is incorrectly adjusted with respect to the magnet position.
- the motor encoder is damaged.
- the angular commutation offset is incorrectly set (p0431).
- data to calculate the motor model has been incorrectly set (p0356 (motor-stator leakage inductance) and/or p0350 (motor-
stator resistance) and/or p0352 (cable resistance).
- the changeover speed for the motor model is too low (p1752). The monitoring function only becomes effective above the
changeover speed.
- pole position identification might have calculated an incorrect value when activated (p1982 = 1).
- the motor encoder speed signal is faulted.
- the control loop is instable due to incorrect parameterization.
Fault value (r0949, interpret decimal):
SERVO:
0: The comparison of the pole position angle from the encoder and motor model resulted in an excessively high value (>
80 ° electrical).
1: -
VECTOR:
0: The comparison of the pole position angle from the encoder and motor model resulted in an excessively high value (>
45 ° electrical).
1: The change in the speed signal from the motor encoder has changed by > p0492 within a current controller clock cycle.
Remedy: - check the phase sequence for the motor, and if required, correct (wiring, p1820).
- if the encoder mounting was changed - re-adjust the encoder.
- replace the defective motor encoder.
- correctly set the angular commutation offset (p0431). If required, determine using p1990.
- correctly set the motor stator resistance, cable resistance and motor-stator leakage inductance (p0350, p0352, p0356).
Calculate the cable resistance from the cross-section and length, check the inductance and stator resistance using the
motor data sheet, measure the stator resistance, e.g. using a multimeter - and if required, again identify the values using
the stationary motor data identification (p1910).
- increase the changeover speed for the motor model (p1752). The monitoring is completely deactivated for p1752 > p1082
(maximum speed).
- with pole position identification activated (p1982 = 1) check the procedure for pole position identification (p1980) and
force a new pole position identification procedure by means of de-selection followed by selection (p1982 = 0 -> 1).
Note:
For High Dynamic Motors (1FK7xxx-7xxx), for applications with a higher current, if necessary, the monitoring should be
disabled.
F07413

Drive: Commutation angle incorrect (pole position identification)

Message value: -
Drive object: All objects
440
SINAMICS S210 servo drive system
Operating Instructions, 12/2017, A5E41702836B AA