Siemens G130 List Manual page 1744

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4 Faults and alarms

4.2 List of faults and alarms

Reaction upon N:

Acknowl. upon N:

Reaction upon A:

Acknowl. upon A:

F31501 (N, A)

Encoder 1: Position tracking encoder position outside tolerance window

Message value:

Message class:

Actual position/speed value incorrect or not available (11)

Drive object:

B_INF, ENC, VECTOR_G

Vector: OFF1 (NONE, OFF2, OFF3)

Infeed: OFF1 (NONE, OFF2)

Acknowledge:

When switched off, the drive/encoder was moved through a distance greater than was parameterized in the tolerance

window. It is possible that there is no longer any reference between the mechanical system and encoder.

Fault value (r0949, interpret decimal):

Deviation (difference) to the last encoder position in increments of the absolute value.

The sign designates the traversing direction.

The deviation (difference) found is also displayed in r0477.

See also: p0413 (Measuring gear position tracking tolerance window), r0477 (Measuring gear position difference)

Reset the position tracking as follows:

- select encoder commissioning (p0010 = 4).

- reset the position tracking as follows (p0411.2 = 1).

- deselect encoder commissioning (p0010 = 0).

The fault should then be acknowledged and, if necessary, the absolute encoder adjusted (p2507).

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Sinamics G150