Axis %1 drive %2 rotor position identification failed

%1 = NC axis number %2 = Drive number

If P1075=1 (procedure based on saturation)

The rotor position could not be determined from the measurement signals (motor current), as significant saturation effects did not occur.

For detailed diagnostics see also parameter P1734.

If P1075=3 (procedure based on movement)

1.    Power increase too small.

2.    Max permissible time exceeded.

3.    No clear rotor position found.

-    Mode group not ready.

-    The NC switches to follow-up mode.

-    Channel not ready.

-    NC Start disable in this channel.

-    Interface signals are set.

-    Alarm display.

-    NC Stop on alarm.

-    Channel not ready.

Please inform the authorized personnel/service department.

If P1075=1

Increase current via P1019

Check armature inductance (P1116) and increase if necessary.

Check the motor/converter connection (phase missing).

Check the motor protection.

DC link voltage available?

Check the DC link connections (check that the screws are tight).

The Uce monitoring circuit in the power section has been activated (perform a reset by switching the power supply off and on again).

Replace the power section or closed-loop control module.

If P1075=3 Re 1.

The motor was not properly connected.

The power connection of the motor must be checked.

Re 2.

Remove disturbing external forces (e.g. axis couplings not released)

Identification procedure must remain stable (P1076 must be reduced)

Use encoder with higher resolution

Improve encoder attachement (not rigid enough)

Re 3.

Remove disturbing external forces (e.g. axis couplings not released)

The axis must move freely (e.g. motor not stalled)

Reduce high axis friction (increase P1019)

Only SIMODRIVE POSMO SI, CD, CA If P1075=1

Increase current via P1019

Check on armature inductance (P1116) and increase if necessary.

Check motor/converter connection cable (phase missing)

Check on motor protection.

DC link voltage available?

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