What it means
A35211 comes from a Terminal Module (TM): the temperature acquired through its temperature sensing, channel 0 (r4105[0]), has risen above the alarm threshold set in p4102[0]. Depending on how the drive is configured, the same condition can also be output as a fault (F) or as a message without a reaction (N) instead of the alarm.
Why it appears
- The temperature measured using the temperature sensing of the Terminal Module (TM) — value r4105[0] — has exceeded the threshold value in p4102[0] that initiates this alarm.
What to check
- Compare the temperature currently measured via the Terminal Module's temperature sensing (r4105[0]) with the alarm threshold p4102[0].
- Allow the temperature sensor to cool down to below p4102[0] minus the hysteresis — the hysteresis is 5 K, and on a TM150 it can be set using p4118[0].
- If the sensor is a PTC thermistor or a bimetallic NC contact (p4100[0] = 1, 4), read the sensor resistance in r4101[0]: a resistance above 1650 ohms corresponds to 250 °C, one of 1650 ohms or less to -50 °C.
Reading the message value
- Alarm value (r2124, interpret decimal): the temperature actual value at the time the alarm was initiated, in 0.1 °C.
- For sensor type "PTC thermistor" and "Bimetallic NC contact" (p4100[0] = 1, 4):
- r4101[0] > 1650 ohms: r4105[0] = 250 °C
- r4101[0] <= 1650 ohms: r4105[0] = -50 °C
Parameters the manual names
- r4105[0] — temperature actual value of the Terminal Module's temperature sensing, channel 0; read it to see the measured temperature.
- p4102[0] — alarm threshold of channel 0; the alarm comes when r4105[0] rises above it, and clears again below this value minus the hysteresis.
- p4100[0] — sensor type of channel 0; 1 is a PTC thermistor, 4 a bimetallic NC contact, and for these types the resistance determines the displayed temperature.
- r4101[0] — sensor resistance (parameter name: TM120 sensor resistance); read it for PTC thermistor and bimetallic NC contact sensors to interpret the displayed temperature.
- r2124 — alarm value; interpreted as a decimal number it holds the temperature actual value at the time the alarm was initiated, in 0.1 °C.
- p4118[0] — TM150 hysteresis of the alarm/fault threshold; sets how far below p4102[0] the temperature must fall before the message clears.
Acknowledging and restarting
No acknowledgement is needed: the drive does not intervene in operation on this alarm, and it clears by itself once the temperature at the sensor falls below p4102[0] minus the hysteresis. If the drive is configured to output the condition as a fault (F) instead, the manual specifies acknowledgement IMMEDIATELY (POWER ON).
The same on every family
Every manual that describes A35211 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. 3215 |
| G130, G150 | NONE | NONE | External measured value / signal state outside the permissible range (16) | Terminal Module (TM) | SINAMICS G130, G150 List Manual · p. 1883 |
The drives this code lives on
A35211 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 A35211 mean on a SINAMICS drive?
A Terminal Module (TM) has measured a temperature through its temperature sensing channel 0 (r4105[0]) that is above the alarm threshold set in p4102[0]. Depending on the configuration, the same condition can also be output as a fault (F) or as a message without a reaction (N).
How do I clear A35211?
No acknowledgement is required. Let the temperature sensor cool down below p4102[0] minus the hysteresis (5 K; on a TM150 settable via p4118[0]) and the message clears by itself.
Where can I see the temperature that triggered A35211?
The alarm value r2124, interpreted as a decimal number, holds the temperature actual value at the time the alarm was initiated, in 0.1 °C. The currently measured temperature is in r4105[0].
Why does the Terminal Module show 250 °C or -50 °C?
With sensor type PTC thermistor or bimetallic NC contact (p4100[0] = 1, 4), the drive maps the resistance r4101[0] to a fixed temperature: more than 1650 ohms gives 250 °C, 1650 ohms or less gives -50 °C.
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