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Siemens 6SN1118-1NH01-0AA1 2-Axis Positioning Control Unit

Siemens 6SN1118-1NH01-0AA1 2-Axis Positioning Control Unit

Item NO.: 3767251
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Detail

  • Product NameSiemens 6SN1118-1NH01-0AA1 2-Axis Positioning Control Unit
  • Item NO.3767251
  • Weight0.5700 kg = 1.2566 lb = 20.1062 oz
  • CategoryPLC
  • BrandSiemens
  • Creation Time2026-09-11
6SN1118-1NH01-0AA1 Product Page
Siemens · SIMODRIVE 611 universal HR

Siemens 6SN1118-1NH01-0AA1 2-Axis Positioning Control Unit

The Siemens 6SN1118-1NH01-0AA1 is a two-axis SIMODRIVE 611 universal HR control-loop block for positioning applications with high-resolution encoder feedback.

Product Information

Overview

Siemens documentation identifies 6SN1118-1NH01-0AA1 as the two-axis positioning variant for encoders using sin/cos 1 Vpp signals; the product description also covers absolute encoder operation through EnDat.

The control unit is part of the modular SIMODRIVE 611 system and can be expanded with compatible option modules. Machine data and the memory module are important during service replacement.

Official Technical Data

Technical Specifications

Manufacturer Siemens
Article Number 6SN1118-1NH01-0AA1
Product Family SIMODRIVE 611 universal HR
Product Type 2-axis control-loop block
Axes 2
Primary Function Positioning
Encoder Signals sin/cos 1 Vpp
Absolute Encoder Interface EnDat
Control Capability Speed / torque setpoint plus positioning
Option Expansion Expandable by compatible option modules
Lifecycle Cancelled / spare-part status in legacy SIMODRIVE 611
Country of Origin Germany
Functional Characteristics

Key Features

Two-Axis Positioning
Controls two axes in the 611 universal HR architecture.
High-Resolution Encoder Support
Supports sin/cos 1 Vpp incremental feedback and EnDat absolute encoder functions.
Integrated Positioning
Includes positioning capability in addition to speed/torque functions.
Option Expansion
Supports the option-module concept used by SIMODRIVE 611 universal.
Typical Uses

Applications

CNC Feed Axes
Two-axis positioning in legacy CNC and machine-tool systems.
Positioning Equipment
Industrial axes requiring encoder-based position control.
Machine Retrofits
Service and repair of installed SIMODRIVE 611 universal systems.
Legacy Motion Control
Exact replacement where original 611U HR axis functions must be retained.
Service & Product Status

Lifecycle

Siemens phase-out documentation lists 6SN1118-1NH01-0AA1 among the SIMODRIVE 611 control units affected by product cancellation. It remains relevant as a service / spare part for installed machinery.
Replacement / Compatibility Note
When replacing an earlier hardware revision, keep the original memory / parameter data and verify power-module identification, firmware and encoder configuration before enabling the axes.
Buyer & Maintenance Questions

Frequently Asked Questions

1. How many axes does 6SN1118-1NH01-0AA1 control?
It is a two-axis SIMODRIVE 611 universal HR positioning control unit.
2. Which encoders are supported by 6SN1118-1NH01-0AA1?
Siemens documentation identifies sin/cos 1 Vpp encoder operation and EnDat absolute encoder capability.
3. What should be backed up before replacing 6SN1118-1NH01-0AA1?
Preserve the machine data, control parameters, memory-module contents and encoder configuration before removing the original board.
4. Is 6SN1118-1NH01-0AA1 still an active production item?
No. It belongs to the phased-out SIMODRIVE 611 platform and is used primarily for service of installed equipment.
5. Can a different 6SN1118 board be used without checking the machine configuration?
No. Axis count, feedback type, positioning function, firmware and power-module identification must match.
Product Inquiry
Need 6SN1118-1NH01-0AA1?
Send us the complete model, installed-system information and quantity for availability, quotation, lead time and shipping support.
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