Siemens Sinumerik 840D sl Diagnostic Manual page 906

Overview of Alarms
SINAMICS-Alarms
232500 <location>Encoder 2: Position tracking traversing range exceeded
Message -
value:
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 traversing range. The value should be read in p0412 and interpreted as the number of motor
revolutions.
When p0411.0 = 1, the maximum traversing range for a configured linear axis is defined to be 64x (+/-
32x) the setting in p0421.
When p0411.3 = 1, the maximum traversing range for a configured linear axis is preset to the highest
possible value and equals +/-p0412/2 (rounded to whole rotations). The highest possible value
depends on the pulse number (p0408) and fine resolution (p0419).
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.
232501 <location>Encoder 2: Position tracking encoder position outside
tolerance window
Message %1
value:
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 was parameter-
ized in the tolerance window. It is possible that there is no longer any reference between the mechan-
ical 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 gear, position tracking tolerance window), r0477 (Measuring gear, posi-
tion difference)
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, p2507
232502 <location>Encoder 2: Encoder with measuring gear, without valid
signals
Message -
value:
Drive object: SERVO, VECTOR
Reaction: OFF1 (OFF2, OFF3)
Acknowledge: IMMEDIATELY
Cause: The encoder with measuring gear no longer provides any valid signals.
Remedy: It must be ensured that all of the encoders, with mounted measuring gear, provide valid actual values
in operation.
2-906
SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
© Siemens AG 2009 All Rights Reserved
03/2009