What it means
F49155 is raised because the firmware version in the Power Stack Adapter (PSA) is too old for the liquid cooling of the cooling unit. The manual carries the message as Cooling unit: Power Stack Adapter, firmware version too old
. It is described in the same words for the SINAMICS G130, G150, S120 and S150.
Why it appears
- The Power Stack Adapter (PSA) carries a firmware version that is too old.
- With this old firmware, the PSA lacks support for the liquid cooling.
What to check
- Upgrade the PSA firmware to a version that supports liquid cooling.
- Check the EEPROM data as well.
Acknowledging and restarting
While the fault is active, the drive coasts down and cannot restart until the fault has been cleared. The manual requires a POWER ON for this: after the firmware upgrade and the EEPROM data check, the drive's power supply must be switched off and on again before the drive is restarted.
The same on every family
Every manual that describes F49155 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | OFF2 | POWER ON | Auxiliary unit faulted (20) | None | SINAMICS S120, S150 List Manual · p. 3289 |
| G130, G150 | OFF2 | POWER ON | Auxiliary unit faulted (20) | None | SINAMICS G130, G150 List Manual · p. 1932 |
The drives this code lives on
F49155 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 F49155 mean?
It reports that the firmware version in the Power Stack Adapter (PSA) is too old and therefore does not support the liquid cooling of the unit.
How do I clear fault F49155?
Upgrade the PSA firmware and check the EEPROM data. The fault is then cleared by a POWER ON, i.e. the drive's power supply is switched off and on again.
Which SINAMICS drives raise F49155?
The code is described for the G130, G150, S120 and S150, whose manuals give the same cause and the same remedy.
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 F49xxx group · SINAMICS manuals · Siemens manuals