What it means
Encoder 2 signals that it could not determine the singleturn position correctly: the encoder itself raises the fault and reports the cause as individual bits of an internal status/fault word. Some of these bits trigger the fault, the others are only status displays. The drive stores the complete word as the fault value in r0949, which must be read as a binary number. In the manual's bit list the first designation applies to DRIVE-CLiQ encoders, the second to EnDat 2.2 encoders.
Why it appears
- Encoder 2 has identified a fault when determining the singleturn position and reports it bit by bit in its internal status/fault word — the bits set in r0949 name the concrete condition behind the fault.
What to check
- Read the fault value in r0949 as a binary number and determine the detailed cause from the bits that are set (decoding below).
- Replace the encoder if necessary. With an EnDat 2.2 encoder, observe the "Park" state note under Reset.
Reading the message value
- r0949 carries the encoder's internal status/fault word, to be interpreted binary.
- Bits that trigger this fault (each pointing to F3x135): bit 16 lighting, bit 17 signal amplitude, bit 18 singleturn position 1, bit 19 overvoltage, bit 20 undervoltage, bit 21 overcurrent, bit 24 singleturn system, bit 25 singleturn power down.
- Bit 0 (F1), bit 1 (F2) and bit 23 (singleturn position 2) are safety status displays only.
- With EnDat 2.2 encoders, bits 6 to 9 report EnDat supply faults or an encoder withdrawn outside the "Park" state and bits 11 to 15 internal communication errors, all leading to F3x110; bit 22 (temperature exceeded) leads to F3x405; bits 26 to 31 (multiturn) lead to F3x136. The x in these cross-references stands for 1, 2, 3 as printed.
Parameters the manual names
- r0949 — fault value: read it as a binary number to see which bit of the Encoder 2 status/fault word triggered F32135.
Acknowledging and restarting
Acknowledge the fault once the cause reported in r0949 has been cleared. An EnDat 2.2 encoder may only be removed and inserted in the "Park" state.
If such an encoder was removed when not parked, the fault can only be acknowledged after reinserting it and performing a POWER ON (switch-off/switch-on).
What differs between the drive families
Straight from the manuals' own fields — F32135 is not described identically everywhere.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | Servo: OFF1 (IASC/DCBRK, NONE, OFF2, OFF3) Vector: OFF1 (IASC/DCBRK, NONE, OFF2, OFF3) Hla: OFF1 (NONE, OFF2, OFF3) | PULSE INHIBIT | Actual position/speed value incorrect or not available (11) | Encoder 2 | SINAMICS S120, S150 List Manual · p. 3094 |
| G130, G150 | OFF1 (IASC/DCBRK, NONE, OFF2, OFF3) | PULSE INHIBIT | Actual position/speed value incorrect or not available (11) | Encoder 2 | SINAMICS G130, G150 List Manual · p. 1774 |
The drives this code lives on
F32135 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 F32135 mean on a SINAMICS drive?
Encoder 2 has reported a fault when determining the singleturn position. The encoder codes the condition bit by bit in a status/fault word that the drive stores as the fault value in r0949.
How do I find the exact cause of F32135?
Read r0949 as a binary number and look up the set bit. The triggering bits name lighting, signal amplitude, singleturn position 1, overvoltage, undervoltage, overcurrent, singleturn system or singleturn power down.
Why does F32135 stay after the encoder was reconnected?
An EnDat 2.2 encoder that was removed outside the "Park" state only lets the fault be acknowledged after reinsertion and a POWER ON (switch-off/switch-on).
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