What it means
This alarm is raised when the target position of an EPOS traversing block lies outside the modulo range. The alarm value identifies the affected block: the drive writes the number of the traversing block with the illegal target position into r2124, which is read as a decimal number.
Why it appears
- The target position set in the traversing block lies outside the modulo range.
What to check
- Read the alarm value in r2124 (interpret it as a decimal number); it contains the number of the traversing block with the illegal target position.
- Correct the target position in that traversing block.
- Change the modulo range (p2576) so that the target position lies inside the range.
Reading the message value
- r2124, interpreted as a decimal number: the number of the traversing block whose target position is outside the modulo range.
Parameters the manual names
- r2124 — alarm value; read as a decimal number it gives the number of the traversing block with the illegal target position.
- p2576 — EPOS modulo correction modulo range; this is the parameter in which the modulo range is changed as one of the two remedies for this alarm.
Acknowledging and restarting
This alarm requires no acknowledgment. The condition is resolved by correcting the target position in the affected traversing block or by changing the modulo range (p2576).
The same on every family
Every manual that describes A07471 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | NONE | NONE | Application/technological function faulted (17) | None | SINAMICS S120, S150 List Manual · p. 2824 |
| G130, G150 | NONE | NONE | Application/technological function faulted (17) | None | SINAMICS G130, G150 List Manual · p. 1561 |
The drives this code lives on
A07471 is described for G130, G150, S120, S150. These are the converters of those families in our catalogue — price on request.
Questions technicians ask
What does SINAMICS alarm A07471 mean?
It reports that the target position of an EPOS traversing block lies outside the modulo range. The number of the affected traversing block is stored in r2124 as a decimal value.
How do I fix alarm A07471?
Read the traversing block number from r2124 (decimal), then correct the target position in that block, or change the modulo range in p2576.
Does A07471 have to be acknowledged?
No. The alarm requires no acknowledgment; it is resolved by correcting the target position or the modulo range (p2576).
Which parameter sets the modulo range for A07471?
p2576, the EPOS modulo correction modulo range. It is the parameter to change when the remedy is to widen the range rather than correct the target position in the traversing block.
Codes next to this one
Source
Written from Siemens' own List Manuals and operating instructions; every number, designation and parameter on this page is checked against them before publication.
All SINAMICS codes: fault and alarm codes · the A07xxx group · SINAMICS manuals · Siemens manuals