What it means
A01097 is raised when the drive cannot access the NTP (Network Time Protocol) server whose IP address is stored in p3105. Because the server cannot be reached, time synchronization cannot be performed. The alarm does not trip the drive and no message value is output; depending on how the drive is configured, the same condition can also be signaled with no reaction.
Why it appears
- The NTP server selected in p3105 cannot be accessed.
- As a result, time synchronization cannot be performed.
What to check
- Check that the IP address of the NTP server is set correctly in p3105, and correct the entry if it is wrong.
- Check the connection to the NTP server.
Parameters the manual names
- p3105 — NTP server IP address: the address of the NTP server the drive tries to reach; check and, if necessary, correct this setting when A01097 appears.
Acknowledging and restarting
No acknowledgement is required. Once the IP address in p3105 is correct and the drive can reach the NTP server again, the cause of the alarm is removed and time synchronization can be performed again.
The same on every family
Every manual that describes A01097 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | NONE | NONE | Communication error to the higher-level control system (9) | None | SINAMICS S120, S150 List Manual · p. 2577 |
The drives this code lives on
A01097 is described for S120, S150. These are the converters of those families in our catalogue — price on request.
Questions technicians ask
What does SINAMICS alarm A01097 mean?
The drive cannot access the NTP server whose IP address is stored in p3105, so time synchronization cannot be performed. The alarm does not trip the drive.
How do I fix A01097 (NTP server cannot be accessed)?
Set the IP address of the NTP server correctly in p3105 and check the connection to the server. The alarm ends once the drive can reach the NTP server again.
Does SINAMICS A01097 have to be acknowledged?
No. No acknowledgement is required; removing the cause — a correctly addressed, reachable NTP server — is enough.
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 A01xxx group · SINAMICS manuals · Siemens manuals