What it means
A35222 (manual title: TM: Encoder pulse number not permissible
) is raised when the encoder pulse number that was entered does not match the pulse number the hardware permits. Which window applies depends on the module variant: for TM41 SAC the rotary encoder pulse number p0408 may lie between 1000 and 8192, for TM41 DAC between 1000 and 16384. Depending on the drive configuration, the same condition can also be issued as a fault or raised without a reaction instead of as an alarm.
Why it appears
- The set encoder pulse number does not match the pulse number permissible from the hardware side.
- The permissible window for p0408 depends on the fitted module: 1000 to 8192 for TM41 SAC, 1000 to 16384 for TM41 DAC.
What to check
- Read the alarm value in r2124 and interpret it as a decimal number.
- A value of 1 means the entered pulse number is too high, a value of 2 means it is too low, and a value of 4 means the pulse number lies below the zero mark offset held in p4426.
- Set the encoder pulse number in p0408 to a value inside the window of the module in use: 1000 to 8192 for TM41 SAC, 1000 to 16384 for TM41 DAC.
- If the pulse number you need exceeds what TM41 SAC accepts, replace TM41 SAC (Article No. 6SL3055-0AA00-3PA0) with TM41 DAC (Article No. 6SL3055-0AA00-3PA1).
Reading the message value
- 1: the encoder pulse number is too high.
- 2: the encoder pulse number is too low.
- 4: the encoder pulse number is less than the zero mark offset (p4426).
Parameters the manual names
- p0408 — rotary encoder pulse number: the value to correct for this code; keep it inside the window of the TM41 variant that is connected.
- r2124 — alarm value: read it as a decimal number to see whether the pulse number was rejected as too high (1), too low (2) or below the zero mark offset (4).
- p4426 — TM41 encoder emulation pulses for the zero mark: with alarm value 4 the pulse number in p0408 lies below this offset.
Acknowledging and restarting
As an alarm, the message needs no acknowledgement. If the drive is configured to raise the same condition as a fault instead, the drive objects concerned carry out their configured stop response and the fault is then acknowledged immediately; depending on the drive object a POWER ON may be necessary. The condition itself is resolved by entering a permissible encoder pulse number in p0408.
The same on every family
Every manual that describes A35222 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | NONE | NONE | Error in the parameterization / configuration / commissioning procedure (18) | None | SINAMICS S120, S150 List Manual · p. 3218 |
| G130, G150 | NONE | NONE | Error in the parameterization / configuration / commissioning procedure (18) | None | SINAMICS G130, G150 List Manual · p. 1885 |
Parts the manual names
- 6SL3055-0AA00-3PA0: TM41 SAC, the module variant whose permissible range for the encoder pulse number p0408 ends at 8192; the remedy is to replace it with the TM41 DAC variant when a higher pulse number is required.
The drives this code lives on
A35222 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 A35222 on my SINAMICS mean?
It reports that the encoder pulse number entered does not match the pulse number the encoder hardware permits. The alarm value in r2124 shows whether the value is too high, too low or below the zero mark offset p4426.
Which values may p0408 have with a TM41?
TM41 SAC accepts 1000 to 8192, TM41 DAC accepts 1000 to 16384. If the SAC variant cannot accept the pulse number you require, replace it with the DAC variant.
How do I clear A35222?
Enter a permissible encoder pulse number in p0408 and, if the condition is configured as a fault, acknowledge it immediately (POWER ON may be required). As an alarm the message needs no acknowledgement.
How is the alarm value of A35222 decoded?
Interpret r2124 as a decimal number: 1 means the pulse number is too high, 2 means it is too low, and 4 means it is less than the zero mark offset in p4426.
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