What it means
N05007 is a message without a reaction; the manuals title it Power unit: Overtemperature thermal model (chassis PU)
. It reports that the temperature difference between the chip and the heat sink of the power unit has exceeded the permissible limit value stored in r0293, and the manuals describe this for chassis power units only. Depending on p0290, the drive initiates an appropriate overload response while the message is present. The same condition can also be issued as an alarm (A); the drive's configuration decides which form appears.
Why it appears
- The temperature difference between the chip and the heat sink of the power unit has exceeded the permissible limit value held in r0293. The manuals state this applies to chassis power units only.
- Depending on p0290, the drive initiates an appropriate overload response.
What to check
- No remedy is necessary. The message is withdrawn automatically once the temperature difference has fallen below the limit value again.
- While it is active you can watch the values the manuals point to: r0293, the power unit alarm threshold for the model temperature, and r0037, the Control Unit temperature.
- If you want to know which overload response the drive is applying during the message, look at p0290.
Parameters the manual names
- r0293 — power unit alarm threshold model temperature: the limit value whose exceedance raises N05007 and whose undershoot clears it again.
- p0290 — power unit overload response: determines which overload response the drive initiates when this message appears.
- r0037 — Control Unit temperature: named by the manual under 'See also' as a related signal to observe while the condition is present.
Acknowledging and restarting
No acknowledgement is required and none is expected: the drive removes the message on its own once the chip-to-heat-sink temperature difference has fallen below the limit value in r0293. This applies equally when the condition is issued as an alarm (A) — there too nothing has to be acknowledged and the drive takes no message reaction beyond the p0290 overload response.
The same on every family
Every manual that describes N05007 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | NONE | NONE | Power electronics faulted (5) | Power Module | SINAMICS S120, S150 List Manual · p. 2748 |
| G130, G150 | NONE | NONE | Power electronics faulted (5) | Power Module | SINAMICS G130, G150 List Manual · p. 1520 |
The drives this code lives on
N05007 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 N05007 mean on a SINAMICS drive?
It reports that the temperature difference between the chip and the heat sink of a chassis power unit has exceeded the permissible limit value stored in r0293, and that the drive initiates the overload response configured in p0290.
How do I acknowledge or reset N05007?
You cannot and need not acknowledge it. The drive withdraws the message automatically once the temperature difference falls below the limit value in r0293 again.
Is N05007 a fault or an alarm?
It appears as a message without a reaction and can also be issued as an alarm (A); the drive's configuration decides. In neither form does it demand an acknowledgement.
Which parameters belong to N05007?
r0293 holds the power unit alarm threshold for the model temperature, p0290 selects the power unit overload response, and the manual names r0037, the Control Unit temperature, as a related signal.
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 N05xxx group · SINAMICS manuals · Siemens manuals