09.F4.S1D-4A01 KEB COMBIVERT F4 frequency inverter

09.F4.S1D-4A01 KEB COMBIVERT F4 frequency inverter is documented for the KEB COMBIVERT F4 drive system. Its concrete system position is stated from cited facts and marked inference.

Verified system role

Rebuilt from individual evidence

Fresh evidence identifies 09.F4.S1D-4A01 as a KEB COMBIVERT F4 frequency inverter.

The exact-reference listing identifies 09.F4.S1D-4A01 as a KEB Automation AC drive and a COMBIVERT F4 frequency-inverter customer version with a braking transistor.

Inferred system position: the frequency inverter sits between the controller and motor in the KEB COMBIVERT F4 chain.

Exact reference: 09.F4.S1D-4A01
Category: Drives / VFD
Evidence checked: 2026-09-11

System role

This section explains what the product does and where it acts in the surrounding system.

Function: The frequency inverter controls motor power and output frequency in the KEB COMBIVERT F4 system.
System position: Inferred system position: the frequency inverter sits between the controller and motor in the KEB COMBIVERT F4 chain.
Upstream / inputs: Upstream input: mains power and controller commands reach the KEB COMBIVERT F4 inverter.
Downstream / outputs: Downstream output: variable motor power and frequency reach the connected motor.
Limitations: Unknown: installation-specific compatibility, firmware, condition, and replacement suitability are not established by the captured sources.

Evidence ledger

Facts, inferences, and unknowns are kept separate.

Facts

The cited source identifies 09.F4.S1D-4A01 as a KEB COMBIVERT F4 frequency inverter.
Confidence: high
- venusautomation.com.au — retrieved 2026-09-11; high confidence
The exact-reference listing identifies 09.F4.S1D-4A01 as a KEB Automation AC drive and a COMBIVERT F4 frequency-inverter customer version with a braking transistor.
Confidence: high
- venusautomation.com.au — retrieved 2026-09-11; high confidence

Inferences

Inferred system position: the frequency inverter sits between the controller and motor in the KEB COMBIVERT F4 chain.
Confidence: medium
Rationale: The exact-reference listing identifies a KEB COMBIVERT F4 frequency inverter with a braking transistor; its controller-to-motor position is an inference.
- venusautomation.com.au — retrieved 2026-09-11; high confidence

Unknowns

Unknown: installation-specific compatibility, firmware, condition, and replacement suitability are not established by the captured sources.
Confidence: low
Missing evidence: A confirmed installed-system configuration, revision, condition report, and replacement assessment.

System position diagram

Diagram showing 09.F4.S1D-4A01 between upstream equipment and downstream control or load. — System position inferred from the cited role and evidence.

View Mermaid source

flowchart LR\n  Upstream["Upstream equipment"] --> Component["09.F4.S1D-4A01"]\n  Component --> Downstream["Downstream control or load"]

View diagram labels

Nodes: 09.F4.S1D-4A01 in the documented KEB COMBIVERT F4 drive system; Downstream control or load
Edges: Evidence-backed system connection

Next action

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