What it means
A30034 is raised when the alarm threshold for internal overtemperature in the power unit has been reached. The alarm triggers no automatic reaction and requires no acknowledgment. If the temperature inside the unit continues to increase, the drive triggers fault F30036.
Why it appears
- The ambient temperature might be too high.
- Cooling is insufficient, for example because of a fan failure.
What to check
- Check the ambient temperature.
- Check the fan for the inside of the unit.
Reading the message value
The drive stores the alarm value for this alarm in r2124. What the value tells you depends on the family:
- On S120 and S150 the alarm value is interpreted binary, and each set bit names the overheated area:
- Bit 0 = 1: Overtemperature in the control electronics area.
- Bit 1 = 1: Overtemperature in the power electronics area.
- Bit 2 = 1: Overtemperature in the processor area.
- Bit 3 = 1: Overtemperature in the processor area.
- Bit 4 = 1: Overtemperature when the internal fan is defective.
- Bit 5 = 1: Intake air overtemperature.
- On G120, G120XA, G130 and G150 the alarm value is interpreted decimal and is
Only for internal Siemens troubleshooting.
Parameters the manual names
- r2124 — alarm value: for this alarm the drive writes the overtemperature alarm value here. On S120 and S150 read it as binary to identify the overheated area (see above); on G120, G120XA, G130 and G150 the value is only for internal Siemens troubleshooting.
Acknowledging and restarting
This alarm requires no acknowledgment. Remove the overtemperature cause — if the temperature inside the power unit keeps rising, the drive escalates the condition to fault F30036.
What differs between the drive families
Straight from the manuals' own fields — A30034 is not described identically everywhere.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | NONE | NONE | Power electronics faulted (5) | Power Module | SINAMICS S120, S150 List Manual · p. 2950 |
| G130, G150 | NONE | NONE | Power electronics faulted (5) | Power Module | SINAMICS G130, G150 List Manual · p. 1661 |
| G120 | NONE | NONE | Power electronics faulted (5) | — | SINAMICS G120 · p. 913 |
| G120XA | NONE | NONE | — | — | SINAMICS G120XA PN converter · p. 1159 |
The drives this code lives on
A30034 is described for G120, G120XA, G130, G150, S120, S150. These are the converters of those families in our catalogue — price on request.
Questions technicians ask
What does alarm A30034 mean on a SINAMICS drive?
The power unit has reached its alarm threshold for internal overtemperature. The alarm itself triggers no reaction and needs no acknowledgment, but if the temperature keeps rising the drive triggers fault F30036.
How do I fix A30034?
Check the ambient temperature and check the fan for the inside of the unit. No acknowledgment action is required for the alarm itself.
What is the alarm value r2124 for A30034?
On S120 and S150 it is interpreted binary and each set bit names the overheated area — control electronics, power electronics, processor, internal fan or intake air. On G120, G120XA, G130 and G150 the value is only for internal Siemens troubleshooting.
Will A30034 trip the drive?
The alarm itself triggers no automatic reaction. Only if the internal temperature rises up to the fault threshold does the drive trigger fault F30036.
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 A30xxx group · SINAMICS manuals · Siemens manuals