What it means
F32122 reports an internal fault in the Sensor Module of encoder 2. The manual for the G130 and G150 titles the code Encoder 2: Internal power supply voltage faulty
and describes a fault in the internal reference voltage of the ASICs for encoder 2; the manual for the S120 and S150 titles it Encoder 2: Sensor Module hardware fault
and describes an internal hardware fault detected in the Sensor Module. Both descriptions point to the same component — the Sensor Module Encoder 2 — and carry the same fault value decoding and the same remedy.
Why it appears
- An internal hardware fault in the Sensor Module Encoder 2: a fault in the internal reference voltage of the ASICs for encoder 2.
What to check
- Read the fault value in r0949 and interpret it as a decimal number to see which internal condition the drive detected (see the decoding below).
- Replace the motor with DRIVE-CLiQ or the appropriate Sensor Module — this is the remedy the manuals print for this fault.
Reading the message value
- The drive enters the fault value in r0949; interpret it as a decimal number.
- 1: Reference voltage error.
- 2: Internal undervoltage.
- 3: Internal overvoltage.
Parameters the manual names
- r0949 — fault value: read it as a decimal number to tell which of the three internal conditions (1 reference voltage error, 2 internal undervoltage, 3 internal overvoltage) raised F32122.
Acknowledging and restarting
Acknowledge the fault immediately — the drive reacts with OFF1 and will not restart until the fault has been acknowledged. Because the fault indicates a hardware defect in the Sensor Module Encoder 2, replace the motor with DRIVE-CLiQ or the appropriate Sensor Module before returning the drive to service.
The same on every family
Every manual that describes F32122 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| G130, G150 | OFF1 | IMMEDIATELY | Supply voltage fault (undervoltage) (3) | Sensor Module Encoder 2 | SINAMICS G130, G150 List Manual · p. 1770 |
| S120, S150 | OFF1 | IMMEDIATELY | Supply voltage fault (undervoltage) (3) | Sensor Module Encoder 2 | SINAMICS S120, S150 List Manual · p. 3090 |
The drives this code lives on
F32122 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 fault F32122 mean in SINAMICS?
It reports an internal fault in the Sensor Module of encoder 2 — on the G130/G150 described as a fault in the internal reference voltage of the ASICs for encoder 2, on the S120/S150 as an internal Sensor Module hardware fault.
How do I fix F32122?
The manuals give one remedy: replace the motor with DRIVE-CLiQ or the appropriate Sensor Module. Then acknowledge the fault immediately.
What do the fault values 1, 2 and 3 of F32122 mean?
Read the fault value in r0949 as a decimal number: 1 means reference voltage error, 2 internal undervoltage and 3 internal overvoltage.
Which component triggers F32122?
The Sensor Module Encoder 2. That is also why the remedy is to replace the motor with DRIVE-CLiQ or this Sensor Module.
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 F32xxx group · SINAMICS manuals · Siemens manuals