What it means
F07220 is raised when a drive that is being controlled by a higher-level PLC loses the "master control by PLC" signal while it is in operation. The drive then stops with the fault response configured for this message and can only be restarted once the message has been acknowledged. Depending on the drive configuration, the same condition can also be issued as an alarm (A) or as a message without a reaction (N) instead of a fault.
Why it appears
- The binector input (BI) for "master control by PLC" — p0854 — is interconnected incorrectly.
- The higher-level control has withdrawn the "master control by PLC" signal.
- Data transfer between master and drive over the fieldbus was interrupted.
What to check
- Check the interconnection of the binector input for "master control by PLC" at p0854.
- Check the "master control by PLC" signal coming from the higher-level control and switch it in again if required.
- Check the data transfer via the fieldbus (master/drive).
Parameters the manual names
- p0854 — "BI: Control by PLC/no control by PLC / Master ctrl by PLC": the binector input through which the master-control signal from the PLC reaches the drive. For this fault, check that this input is interconnected correctly.
Acknowledging and restarting
Rectify the cause first, then acknowledge the fault immediately; the drive will not restart until it is acknowledged. The manuals add that if the drive should continue to operate after the PLC withdraws "master control by PLC", the fault response must be parameterized to NONE or the message type must be parameterized as an alarm. In that configuration the condition triggers no reaction and requires no acknowledgment.
What differs between the drive families
Straight from the manuals' own fields — F07220 is not described identically everywhere.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| S120, S150 | Infeed: OFF1 (NONE, OFF2) Servo: OFF1 (NONE, OFF2, OFF3, STOP2) Vector: OFF1 (NONE, OFF2, OFF3, STOP2) Hla: OFF1 (NONE, OFF2, OFF3, STOP2) | IMMEDIATELY | Communication error to the higher-level control system (9) | None | SINAMICS S120, S150 List Manual · p. 2790 |
| G130, G150 | Vector: OFF1 (NONE, OFF2, OFF3, STOP2) Infeed: OFF1 (NONE, OFF2) | IMMEDIATELY | Communication error to the higher-level control system (9) | None | SINAMICS G130, G150 List Manual · p. 1540 |
| G120 | OFF1 (NONE, OFF2, OFF3, STOP2) | IMMEDIATELY | Communication error to the higher-level control system (9) | — | SINAMICS G120 · p. 874 |
The drives this code lives on
F07220 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 fault F07220 mean on a SINAMICS drive?
The "master control by PLC" signal was missing while the drive was in operation — the higher-level control withdrew it, the binector input p0854 is interconnected incorrectly, or the fieldbus transfer between master and drive was interrupted.
Which parameter belongs to F07220?
p0854, the binector input "Master ctrl by PLC". Check that this input is interconnected so that it actually receives the master-control signal from the higher-level control.
How is F07220 reset?
Rectify the cause — the p0854 interconnection, the PLC signal or the fieldbus master/drive transfer — and then acknowledge the fault immediately. The drive restarts only after acknowledgment.
Can the drive keep running when the PLC drops master control?
Yes, if it is configured for that: the manuals state that the fault response must then be parameterized to NONE or the message type parameterized as an alarm. The condition then triggers no reaction and needs no acknowledgment.
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 F07xxx group · SINAMICS manuals · Siemens manuals