What it means
N30620 is a status announcement from the Safety Integrated (SI) function: the Safe Torque Off (STO) function of the basic functions has been selected in monitoring channel 2 using the input terminal and is active. On the G120 the manual words this as the STO function having been selected on processor 2 using the input terminal. this message does not result in a safety stop response
— the code informs you about the STO state, it is not a report of a malfunction. Depending on how the drive is configured, the same condition can also be issued as a fault (F) or an alarm (A). On the S120, S150, G130 and G150 the manual adds that this message is not output when STO is selected using the Extended Functions. Abbreviations as printed by the manual: SI — Safety Integrated; STO — Safe Torque Off; SH — Safe standstill; MM — Motor Module.
Why it appears
- The Safe Torque Off (STO) function of the basic functions has been selected in monitoring channel 2 via an input terminal and is currently active — on the G120 the manual phrases the same cause as STO having been selected on processor 2.
What to check
- No remedial action is necessary — the manual states this expressly for this code. It only reports the active STO state that has been selected at the input terminal.
Acknowledging and restarting
No acknowledgement is needed and nothing has to be reset: in its message form the code triggers no drive reaction and, as quoted above, no safety stop response. Only when the configuration raises the same condition as a fault does the drive coast down (OFF2); that fault is acknowledged IMMEDIATELY (POWER ON). Issued as an alarm, the code likewise requires neither reaction nor acknowledgement.
What differs between the drive families
Straight from the manuals' own fields — N30620 is not described identically everywhere.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | — | — | Safety monitoring channel has identified an error (10) | None | SINAMICS S120, S150 List Manual · p. 2975 |
| G130, G150 | NONE | NONE | Safety monitoring channel has identified an error (10) | None | SINAMICS G130, G150 List Manual · p. 1677 |
| G120 | NONE | NONE | Safety monitoring channel has identified an error (10) | — | SINAMICS G120 · p. 921 |
The drives this code lives on
N30620 is described for G120, G130, G150, S120, S150. These are the converters of those families in our catalogue — price on request.
Questions technicians ask
What does SINAMICS code N30620 mean?
It reports that the Safe Torque Off (STO) function of the Safety Integrated basic functions has been selected in monitoring channel 2 via an input terminal and is active. It is a status message, not a malfunction report.
Does N30620 stop the drive or need a reset?
No. The message does not result in a safety stop response, and neither acknowledgement nor remedy is necessary. Only a configuration that issues the same condition as a fault coasts the drive down (OFF2) and then needs a POWER ON acknowledgement.
Why is N30620 not displayed although STO is active?
On the S120, S150, G130 and G150 the manual states that this message is not output when STO is selected using the Extended Functions rather than the basic functions.
How do I clear N30620?
The manual gives no remedial action because none is necessary; the code simply reports the terminal-selected STO state in monitoring channel 2.
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 N30xxx group · SINAMICS manuals · Siemens manuals