What it means
The Terminal Module (TM) has detected an error while evaluating the temperature sensor connected to channel 5. The alarm value in r2124, interpreted as a decimal number, tells you which error the drive saw: 1 means wire breakage or a sensor that is not connected, 2 means the measured resistance is too low. The same sensor error on the other channels is reported under its own message number. Depending on how the drive is configured, this condition can also be output as a fault (F) or as a message with no reaction (N).
Why it appears
- The Terminal Module registered an error when evaluating the temperature sensor on channel 5.
- The sensor is not connected or the wire is broken (alarm value 1 in r2124).
- The measured resistance is too low for the connected sensor type (alarm value 2 in r2124).
What to check
- Read the alarm value in r2124 (interpret it as a decimal number): 1 = wire breakage or sensor not connected, 2 = measured resistance too low.
- Make sure that the sensor is connected correctly.
- Replace the sensor.
Reading the message value
- 1 — wire breakage or sensor not connected: KTY84: R > 2170 Ohm, PT100: R > 194 Ohm, PT1000: R > 1944 Ohm.
- 2 — measured resistance too low: PTC thermistor: R < 20 Ohm, KTY84: R < 180 Ohm, PT100: R < 60 Ohm, PT1000: R < 603 Ohm.
Parameters the manual names
- r2124 — alarm value: read it here (decimal interpretation) to see whether the Terminal Module detected wire breakage or a sensor that is not connected (1) or a resistance that is too low (2) on channel 5.
Acknowledging and restarting
The alarm requires no acknowledgement. If the drive is configured to output the same condition as a fault (F), the acknowledgement is IMMEDIATELY (POWER ON); in the no-reaction configuration (N) there is likewise nothing to acknowledge.
The same on every family
Every manual that describes A35925 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | NONE | NONE | External measured value / signal state outside the permissible range (16) | Terminal Module (TM) | SINAMICS S120, S150 List Manual · p. 3246 |
| G130, G150 | NONE | NONE | External measured value / signal state outside the permissible range (16) | Terminal Module (TM) | SINAMICS G130, G150 List Manual · p. 1908 |
The drives this code lives on
A35925 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 alarm A35925 mean on a SINAMICS drive?
The Terminal Module has detected an error while evaluating the temperature sensor on channel 5. Alarm value 1 in r2124 means wire breakage or a sensor that is not connected, alarm value 2 means the measured resistance is too low.
How do I fix A35925?
Make sure that the sensor is connected correctly and replace the sensor if the message stays. The alarm itself requires no acknowledgement; only if the condition is configured as a fault (F) is it acknowledged IMMEDIATELY (POWER ON).
Which resistance limits belong to A35925?
For wire breakage or a missing sensor: KTY84 R > 2170 Ohm, PT100 R > 194 Ohm, PT1000 R > 1944 Ohm. For a resistance that is too low: PTC thermistor R < 20 Ohm, KTY84 R < 180 Ohm, PT100 R < 60 Ohm, PT1000 R < 603 Ohm.
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 A35xxx group · SINAMICS manuals · Siemens manuals