What it means
A30919 is raised when the temperature monitoring in the power unit fails: the drive can no longer evaluate the sensors for the internal temperature. The manual states plainly: Fault-free operation of the drive system is no longer guaranteed.
The alarm value in r2124 tells you which of the two internal temperature sensors is affected.
Why it appears
- The temperature monitoring in the power unit has failed.
- Sensor 1 and/or sensor 2 for the internal temperature can no longer be evaluated — the alarm value shows which one it is.
What to check
- Read the alarm value in r2124 and interpret it binary: bit 0 means sensor 1, bit 1 means sensor 2 for the internal temperature can no longer be evaluated.
- Replace the power unit immediately. This is the only remedy the manual gives for this alarm; no other corrective steps are described.
Reading the message value
The drive stores the alarm value in r2124; interpret it binary:
- Bit 0: Sensor 1 for the internal temperature can no longer be evaluated.
- Bit 1: Sensor 2 for the internal temperature can no longer be evaluated.
Parameters the manual names
- r2124 — alarm value: for this alarm, read it binary to see which internal temperature sensor (bit 0 = sensor 1, bit 1 = sensor 2) can no longer be evaluated.
The same on every family
Every manual that describes A30919 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | — | — | Overtemperature of the electronic components (6) | Power Module | SINAMICS S120, S150 List Manual · p. 3023 |
The drives this code lives on
A30919 is described for S120, S150. These are the converters of those families in our catalogue — price on request.
Questions technicians ask
What does alarm A30919 mean on a SINAMICS drive?
The temperature monitoring in the power unit has failed and the internal temperature sensors can no longer be evaluated. The manual states that fault-free operation of the drive system is no longer guaranteed.
How do I fix A30919?
The manual's only remedy is to replace the power unit immediately. No other corrective action and no reset procedure are described for this alarm.
Which sensor triggered A30919?
Read the alarm value in r2124 as a binary number: bit 0 means sensor 1 and bit 1 means sensor 2 for the internal temperature can no longer be evaluated.
Can I keep running the drive with A30919 active?
The manual does not support that: it says fault-free operation is no longer guaranteed and calls for the power unit to be replaced immediately.
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 A30xxx group · SINAMICS manuals · Siemens manuals