Siemens SIMOTICS S-1FL6 - Page 397

Diagnostics
11.2 List of faults and alarms
SINAMICS V90, SIMOTICS S-1FL6
Operating Instructions, 04/2019, A5E36037884-007
395
Fault
Cause
Remedy
F7493: LR: Overflow of the
value range for position actu-
al value
Reaction: OFF1 (OFF2,
OFF3)
Acknowledgement:
IMMEDIATELY
The value range (-2147483648 ...
2147483647) for the position actual value
representation was exceeded. When the
overflow occurs, the "referenced" or "ad-
justment absolute measuring system"
status is reset.
• The position actual value (r2521) has
exceeded the value range.
• The encoder position actual value has
exceeded the value range.
• The maximum encoder value times the
factor to convert the absolute position
from increments to length units (LU)
has exceeded the value range for dis-
playing the position actual value.
If required, reduce the traversing range or
position resolution p29247.
Note for case = 3:
If the value for the maximum possible abso-
lute position (LU) is greater than 4294967296,
then it is not possible to make an adjustment
due to an overflow.
For rotary encoders, the maximum possible
absolute position (LU) is calculated as fol-
lows:
Motor encoder with position tracking:
• IPos: p29247 * p29244
• PTI: 1048576 * p29012[X] * p29244
/ p29013
Motor encoder without position tracking:
• For multiturn encoders:
– IPos: p29247 * p29248 * 4096
/ p29249
– PTI: 1048576 * p29012[X] * 4096
/ p29013
• For singleturn encoders:
– IPos: p29247 * p29248 / p29249
– PTI: 1048576 * p29012[X] / p29013
F7599: Encoder 1: Adjust-
ment not possible
Reaction: OFF1 (NONE,
OFF2, OFF3)
Acknowledgement:
IMMEDIATELY
The maximum encoder value times the
factor to convert the absolute position from
increments to length units (LU) has ex-
ceeded the value range (-2147483648 ...
2147483647) for displaying the position
actual value.
If the value for the maximum possible abso-
lute position (LU) is greater than 4294967296,
then it is not possible to make an adjustment
due to an overflow.
For rotary encoders, the maximum possible
absolute position (LU) is calculated as fol-
lows:
Motor encoder with position tracking:
• IPos: p29247 * p29244
• PTI: 1048576 * p29012[X] * p29244
/ p29013
Motor encoder without position tracking:
• For multiturn encoders:
– IPos: p29247 * p29248 * 4096
/ p29249
– PTI: 1048576 * p29012[X] * 4096
/ p29013
• For singleturn encoders:
– IPos: p29247 * p29248 / p29249
– PTI: 1048576 * p29012[X] / p29013