Siemens 6SN1118-0NH00-0AA0 SIMODRIVE 611 universal two-axis control unit

Siemens documentation identifies the 6SN1118-0NH00 family as a two-axis control unit for sin/cos 1 Vpp or TTL encoders with n-set control, and the catalog copy identifies the exact 0AA0 suffix.

Documented product role

Rebuilt from individual evidence

Siemens documentation identifies the 6SN1118-0NH00 family as a two-axis control unit for sin/cos 1 Vpp or TTL encoders with n-set control, and the catalog copy identifies the exact 0AA0 suffix.

The exact 0AA0 board processes encoder feedback and speed commands for up to two axes in the SIMODRIVE 611 universal system.

Unknown: installation-specific compatibility, firmware, wiring, and unit condition require separate verification.

Exact reference: 6SN1118-0NH00-0AA0
Category: Drives / VFD
Evidence checked: 2026-09-12

System role

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

Function: Controls up to two axes in the SIMODRIVE 611 universal drive system.
System position: Sits in the SIMODRIVE 611 universal drive path between encoder feedback, control commands, and the power section.
Upstream / inputs: Receives n-set commands and sin/cos 1 Vpp or TTL encoder signals.
Downstream / outputs: Regulates the connected axes through the SIMODRIVE 611 universal power section.
Limitations: Unknown: installation-specific compatibility, firmware, wiring, and unit condition require separate verification.

Evidence ledger

Facts, inferences, and unknowns are kept separate.

Facts

Siemens documentation identifies the 6SN1118-0NH00 family as a two-axis control unit for sin/cos 1 Vpp or TTL encoders with n-set control, and the catalog copy identifies the exact 0AA0 suffix.
Confidence: high
- support.industry.siemens.com — retrieved 2026-09-12; high confidence
- congnghiepthinhphat.com — retrieved 2026-09-12; high confidence

Inferences

The exact 0AA0 board processes encoder feedback and speed commands for up to two axes in the SIMODRIVE 611 universal system.
Confidence: medium
Rationale: The system position follows from the exact reference description and the documented interfaces or drive-system context.
- support.industry.siemens.com — retrieved 2026-09-12; high confidence
- congnghiepthinhphat.com — retrieved 2026-09-12; high confidence

Unknowns

Unknown: installation-specific compatibility, firmware, wiring, and unit condition require separate verification.
Confidence: low
Missing evidence: The individual lookup does not establish the installed topology, firmware state, wiring, or physical unit condition.

System position diagram

A flow from the upstream system through 6SN1118-0NH00-0AA0 to the downstream system. — The diagram places 6SN1118-0NH00-0AA0 in the documented industrial control path.

View Mermaid source

flowchart LR
  upstream["Upstream system"] --> product["6SN1118-0NH00-0AA0"]
  product --> downstream["Downstream system"]

View diagram labels

Nodes: Upstream system; 6SN1118-0NH00-0AA0 SIMODRIVE 611 universal two-axis control unit; Downstream system
Edges: Documented control path; Inferred system position

Next action

Use this reference when the installed SIMODRIVE 611 universal system requires the documented two-axis encoder control unit.

Confirm the complete order code, installed system, wiring, and firmware before replacement or commissioning.

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