Siemens Sinumerik 840D sl Diagnostic Manual page 753

03/2009
207441 <location>LR: Save the position offset of the absolute encoder
adjustment
Message -
value:
Drive object: SERVO, VECTOR
Reaction: NONE
Acknowledge: NONE
Cause: The status of the absolute encoder adjustment has changed.
In order to permanently save the determined position offset (p2525) it must be saved in a non-volatile
fashion (p0971, p0977).
Remedy: None necessary.
This alarm automatically disappears after the offset has been saved.
See also: p2507 (LR absolute encoder adjustment status), p2525 (LR encoder adjustment, offset)
207442 <location>LR: Multiturn does not match the modulo range
Message -
value:
Drive object: SERVO, VECTOR
Reaction: OFF1 (OFF2, OFF3)
Acknowledge: IMMEDIATELY
Cause: The ratio between the multiturn resolution and the modular range (p2576) is not an integer number.
This results in the adjustment being set back, as the position actual value cannot be reproduced after
power-off/power-on.
Remedy: Make the ration between the multiturn resolution and the modulo range an integer number.
The ratio v is calculated as follows:
1. Motor encoder without position tracking:
v = (p0421 * p2506 * p0433 * p2505) / (p0432 * p2504 * p2576)
2. Motor encoder with position tracking for the measuring gear:
v = (p0412 * p2506 * p2505) / (p2504 * p2576)
3. Motor encoder with position tracking for the load gear:
v = (p2721 * p2506 * p0433) / (p0432 * p2576)
4. Motor encoder with position tracking for the load and measuring gear:
v = (p2721 * p2506) / p2576
5. Direct encoder without position tracking:
v = (p0421 * p2506 * p0433) / (p0432 * p2576)
6. Direct encoder with position tracking for the measuring gear:
v = (p0412 * p2506) / p2576
Note:
With position tracking, it is recommended that p0412 and p2721 are changed
See also: p0412, p0432, p0433, p2504, p2505, p2506, p2576, p2721
207443 <location>LR: Reference point coordinate not in the permissible range
Message %1
value:
Drive object: SERVO, VECTOR
Reaction: OFF1 (OFF2, OFF3)
Acknowledge: IMMEDIATELY
Cause: The reference point coordinate received when adjusting the encoder via connector input p2599 lies
outside the half of the encoder range and cannot be set as current axis position.
Fault value (r0949, interpret decimal):
Maximum permissible value for the reference point coordinate.
Remedy: Set the reference point coordinate to a lower value than specified in the fault value.
See also: p2598 (EPOS reference point coordinate, signal source), p2599 (EPOS reference point
coordinate value)
© Siemens AG 2009 All Rights Reserved
SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
Overview of Alarms
SINAMICS-Alarms
2-753