What it means
A35226 reports that there is no frequency setpoint for the Terminal Module 41 (TM41). Because that setpoint is missing, the output of tracks A/B has been held (frozen). The manual lists five situations that lead to this on an S120 or S150, ranging from a missing interconnection at connector input p4420 to a TM41 that is not connected to DRIVE-CLiQ.
Why it appears
- The interconnection of connector input p4420 is missing, so no setpoint reaches the TM41.
- The leading encoder is not in the
ready
state — for example a parking encoder is active or the encoder data set is not parameterized. - The TM41 itself has a fault.
- The TM41 is in the commissioning mode (p0010 > 0).
- The TM41 component is not connected to DRIVE-CLiQ.
What to check
- Interconnect connector input p4420 appropriately so that the TM41 again receives its setpoint.
- Bring the leading encoder into the
ready
state; check whether a parking encoder is still active or the encoder data set is not parameterized. - Check p0010: while the TM41 is in the commissioning mode (p0010 > 0) the tracks stay frozen, so end commissioning (p0010 = 0).
- Check that the TM41 component is connected to DRIVE-CLiQ.
- Diagnose the TM41 and remove any TM41 faults.
Parameters the manual names
- p4420 — CI: TM41 encoder emulation position setpoint (Enc_emul s_set). For this alarm, check that this connector input is interconnected; a missing interconnection is the first cause the manual names.
- p0010 — Drive commissioning parameter filter (Drv com par_filt). For this alarm, the TM41 counts as being in the commissioning mode whenever p0010 > 0, so confirm the value is 0 before looking for a hardware cause.
The same on every family
Every manual that describes A35226 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | — | — | Application/technological function faulted (17) | Terminal Module (TM) | SINAMICS S120, S150 List Manual · p. 3219 |
The drives this code lives on
A35226 is described for S120, S150. These are the converters of those families in our catalogue — price on request.
Questions technicians ask
What does alarm A35226 mean on a SINAMICS S120 or S150?
It means there is no frequency setpoint for the Terminal Module 41 (TM41), so the output of tracks A/B has been held (frozen).
Why does A35226 appear?
The manual names five causes: connector input p4420 not interconnected, the leading encoder not in the "ready" state, a TM41 fault, the TM41 in the commissioning mode (p0010 > 0), or the TM41 component not connected to DRIVE-CLiQ.
How do I fix A35226?
Interconnect connector input p4420 appropriately, bring the leading encoder into the "ready" state and remove any TM41 faults. Also finish commissioning (p0010 = 0) and make sure the TM41 is connected to DRIVE-CLiQ.
Which parameters matter for A35226?
p4420, the CI: TM41 encoder emulation position setpoint, must be interconnected. p0010 matters because the commissioning mode (p0010 > 0) freezes the tracks.
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