Siemens SINAMICS S Series - A31432 (F, N) Encoder 1: Rotor position adaptation corrects deviation; F31500 (N, A) Encoder 1: Position tracking traversing range exceeded; F31501 (N, A) Encoder 1: Position tracking encoder position outside tolerance window

Faults and Alarms
List of faults and alarms
3-1652
© Siemens AG 2007 All Rights Reserved
SINAMICS S List Manual (LH1), 07/2007
A31432 (F, N) Encoder 1: Rotor position adaptation corrects deviation
Drive object: All objects
Reaction: NONE
Acknowledge: NONE
Cause: For track A/B, pulses have been lost or too many have been counted. These pulses are presently being corrected.
Alarm value (r2124, interpret decimal): Last measured deviation of the zero mark distance in increments (4 incre-
ments = 1 encoder pulse). The sign designates the direction of motion when detecting the zero mark distance.
Remedy: - check that the encoder cables are routed in compliance with EMC.
- check the plug connections.
- replace the encoder or encoder cable.
- check encoder limit frequency.
- adapt the parameter for the distance between zero marks (p0424, p0425).
Reaction upon F: A_INFEED: NONE (OFF1, OFF2)
SERVO: NONE (ENCODER, IASC / DCBRAKE, OFF1, OFF2, OFF3, STOP1, STOP2)
VECTOR: NONE (ENCODER, IASC / DCBRAKE, OFF1, OFF2, OFF3, STOP1, STOP2)
Acknowl. upon F: IMMEDIATELY
Reaction upon N: NONE
Acknowl. upon N: NONE
F31500 (N, A) Encoder 1: Position tracking traversing range exceeded
Drive object: SERVO, VECTOR
Reaction: OFF1 (NONE, OFF2, OFF3)
Acknowledge: IMMEDIATELY
Cause: For a configured linear axis without modulo correction, the drive/encoder has exceeded the maximum possible tra-
versing range.
For the configured linear axis, the maximum traversing range is defined to be 64x (+/- 32x) of p0421. The value
should be read in p0412 and interpreted as the number of motor revolutions.
Remedy: The fault should be resolved as follows:
- select encoder commissioning (p0010 = 4).
- reset the position tracking as follows (p0411.2 = 1).
- de-select encoder commissioning (p0010 = 0).
The fault should then be acknowledged and the absolute encoder adjusted.
Reaction upon N: NONE
Acknowl. upon N: NONE
Reaction upon A: NONE
Acknowl. upon A: NONE
F31501 (N, A) Encoder 1: Position tracking encoder position outside tolerance window
Drive object: SERVO, VECTOR
Reaction: OFF1 (NONE, OFF2, OFF3)
Acknowledge: IMMEDIATELY
Cause: When powered-down, the drive/encoder was moved through a distance greater than what 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, decimal):
Deviation (difference) to the last encoder position in increments of the absolute value.
The sign designates the traversing direction.
Note:
The deviation (difference) found is also displayed in r0477.
See also: p0413 (Measuring gearbox, position tracking tolerance window), r0477 (Measuring gearbox, position dif-
ference)
Remedy: Reset the position tracking as follows:
- select encoder commissioning (p0010 = 4).
- reset the position tracking as follows (p0411.2 = 1).
- de-select encoder commissioning (p0010 = 0).
The fault should then be acknowledged and, if necessary, the absolute encoder adjusted (p2507).
See also: p0010 (Infeed commissioning parameter filter), p2507 (LR absolute encoder adjustment status)