What it means
The drive raises fault F06010 — printed as “Infeed: Power unit EP 24 V missing in operation” — on the G130, G150, S120 and S150 infeeds when the 24 V pulse enable drops out while the converter is running. EP stands for “Enable Pulses”: the signal the Line Module receives at terminals X21.3 and X21.4 to keep its power pulses enabled. If this enable is withdrawn during operation, the infeed trips and its pulses are inhibited. The manuals describe the condition identically for the power unit of these infeeds, and the fault value carries no additional information.
Why it appears
- While the drive was in operation, the pulse enable via terminal EP (X21.3, X21.4) at the Line Module was withdrawn — the infeed no longer received its 24 V “Enable Pulses” signal.
What to check
- Keep the line-side switch closed while the drive is running:
do not open the line side switch in operation - only when the pulses are inhibited
. - Check the wiring of terminal EP (X21.3, X21.4) at the Line Module to rule out poor contacts.
Acknowledging and restarting
The fault reaction inhibits the infeed's pulses immediately (OFF2, with OFF1 also specified for this fault). Acknowledge the fault immediately once the cause has been removed; the manual additionally specifies POWER ON, so the drive unit's power supply is switched off and on again as part of clearing the fault. The infeed only restarts once the EP 24 V enable is present again at X21.3 and X21.4 and the fault has been acknowledged.
The same on every family
Every manual that describes F06010 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | OFF2 (OFF1) | IMMEDIATELY (POWER ON) | Infeed faulted (13) | Power Module | SINAMICS S120, S150 List Manual · p. 2755 |
| G130, G150 | OFF2 (OFF1) | IMMEDIATELY (POWER ON) | Infeed faulted (13) | Power Module | SINAMICS G130, G150 List Manual · p. 1527 |
The drives this code lives on
F06010 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 F06010 mean on a SINAMICS infeed?
The 24 V pulse enable at terminal EP of the Line Module was withdrawn while the drive was in operation. EP stands for Enable Pulses, and the terminals involved are X21.3 and X21.4.
How do I clear F06010?
Remove the cause first: do not open the line-side switch during operation, only when the pulses are inhibited, and check the EP wiring (X21.3, X21.4) at the Line Module for poor contacts. Then acknowledge the fault immediately; POWER ON is also specified, so the drive unit is switched off and on again.
Which terminals carry the EP pulse enable signal?
Terminals X21.3 and X21.4 on the Line Module carry the EP (Enable Pulses) 24 V signal whose loss during operation triggers F06010.
Why does F06010 appear during operation?
Because the infeed lost its 24 V pulse enable while it was running. The situations the manual's remedy addresses are opening the line-side switch in operation and poor contacts in the EP wiring at X21.3/X21.4.
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 F06xxx group · SINAMICS manuals · Siemens manuals