What it means
C01689 is a safety message with the manual title “SI Motion: Axis re-configured”. It is issued because the axis configuration was changed — for example a switchover between a linear axis and a rotary axis. The drive has already reacted to this change: it sets parameter p0108.13 internally to the correct value. The message therefore tells you that a re-configuration has taken place and that the saving and safety commissioning steps that follow it still have to be completed.
The manual adds two notes: This fault does not result in a safety stop response.
And in the commissioning tool or commissioning software, the units are only consistently displayed after a project upload. The “See also” note points to p9502 (SI Motion axis type (Control Unit)).
Why it appears
- The axis configuration was changed, e.g. a changeover between a linear axis and a rotary axis (switchover).
- As a result, parameter p0108.13 is set internally by the drive to the correct value.
What to check
- Exit the safety commissioning mode (p0010).
- Save all parameters (p0977 = 1 or "copy RAM to ROM").
- Carry out a POWER ON.
- After this POWER ON, safety message F01680 or F30680 indicates that the checksums in r9398[0] and r9728[0] have changed in the drive — the manual therefore requires a second sequence:
- Activate the safety commissioning mode again.
- Complete the safety commissioning of the drive.
- Exit the safety commissioning mode again (p0010).
- Save all parameters again (p0977 = 1 or "copy RAM to ROM").
- Carry out a POWER ON again.
Reading the message value
- The drive writes the number of the parameter that initiated the change into r0949; interpret the fault value as a decimal number.
- The message value shows "Parameter: %1", i.e. the parameter that initiated the change. No further bit decoding is given.
Parameters the manual names
- p0108 (Drive objects function module / DO fct_mod): the drive sets p0108.13 internally to the correct value when the axis configuration changes.
- r0949 (fault value): read it as a decimal number to identify the parameter that initiated the change.
- p0010 (drive commissioning parameter filter): use it to exit the safety commissioning mode — and to activate the mode again for the second commissioning sequence.
- p0977 (save all parameters): set it to 1 ("copy RAM to ROM") to save all parameters before each POWER ON.
- r9398 (SI Mtn act CRC MM): actual checksum of the SI Motion parameters (MM); after the POWER ON, the change of its index [0] is reported via F01680 or F30680.
- r9728 (SI Mtn act CRC): actual checksum of the SI Motion parameters; r9398[0] and r9728[0] are the two checksums whose change the follow-up safety message reports.
- p9502 (SI Mtn ax type CU): SI Motion axis type (Control Unit); the manual's "See also" note for this fault points to this parameter.
Acknowledging and restarting
The drive coasts down and, per the manual's sequence, only runs again after a POWER ON: exit the safety commissioning mode (p0010), save all parameters (p0977 = 1 or "copy RAM to ROM"), then carry out a POWER ON. Because the re-configuration changes the checksums in r9398[0] and r9728[0], the drive signals this after switch-on with safety message F01680 or F30680 — a second safety commissioning cycle (activate mode, complete commissioning, exit mode, save, POWER ON) is then required before the drive is back in service.
The same on every family
Every manual that describes C01689 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | OFF2 | POWER ON | Error in the parameterization / configuration / commissioning procedure (18) | None | SINAMICS S120, S150 List Manual · p. 2669 |
| G130, G150 | OFF2 | POWER ON | Error in the parameterization / configuration / commissioning procedure (18) | None | SINAMICS G130, G150 List Manual · p. 1457 |
The drives this code lives on
C01689 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 C01689 mean on a SINAMICS drive?
It is the safety message "SI Motion: Axis re-configured": the axis configuration was changed (e.g. a linear/rotary changeover) and the drive set parameter p0108.13 internally to the correct value.
Does C01689 trigger a safety stop?
No. The manual states explicitly that this fault does not result in a safety stop response; the drive simply coasts down.
How do I clear fault C01689?
Exit the safety commissioning mode (p0010), save all parameters (p0977 = 1 or "copy RAM to ROM") and carry out a POWER ON. Afterwards F01680 or F30680 reports the changed checksums in r9398[0] and r9728[0], so safety commissioning must be completed again, saved, and followed by a further POWER ON.
What is in the fault value of C01689?
r0949, interpreted as a decimal number, contains the number of the parameter that initiated the change; the message value shows it as "Parameter: %1".
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 C01xxx group · SINAMICS manuals · Siemens manuals
