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- Siemens
- 6SN1118-1NJ01-0AA1
- 1-Axis Control-Loop Block
- Germany
- 305 × 51 × 127 mm
- 0.79 kg
- Xiamen, China
- New & In Stock
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Product Overview
The Siemens 6SN1118-1NJ01-0AA1 is a SIMODRIVE 611 universal HR single-axis control-loop block for resolver-based motor feedback, supporting speed and torque setpoint control as well as positioning functionality. It operates within the SIMODRIVE 611 drive system, processing drive commands and resolver signals for a compatible motor axis.
In a CNC machine tool, a feed axis may need to move to a programmed position and maintain controlled operation as the cutting load changes. This control-loop block processes the required commands and motor feedback, working with the associated power module to regulate the drive. The machine controller coordinates the machining sequence, while the control unit handles the configured drive-control functions.
The 6SN1118-1NJ01-0AA1 is the positioning-capable version of the single-axis resolver control board. Its related model, the 6SN1118-0NJ01-0AA1, is configured for speed and torque setpoint control. This distinction is important when selecting a replacement because the required control functions, feedback configuration, and drive parameters must correspond to the installed machine.
The module also supports integration with compatible optional interface modules. Its suitability for a particular installation depends on the SIMODRIVE hardware generation, motor and resolver combination, power module, and higher-level controller.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Model / Article Number | 6SN1118-1NJ01-0AA1 |
| Product Family | SIMODRIVE 611 universal HR |
| Product Type | 1-Axis Control-Loop Block |
| Number of Axes | 1 |
| Feedback Type | Resolver |
| Control Functions | Speed, torque, and positioning |
| Drive System | SIMODRIVE 611 universal |
| Control Architecture | Closed-loop drive control |
| Expansion Capability | Compatible optional interface modules |
| Optional Interfaces | TERMINALS, PROFIBUS DP2, or PROFIBUS DP3, depending on configuration |
| Typical Application | Single-axis resolver-based feed and positioning drives |
| Dimensions | 305 × 51 × 127 mm |
| Weight | 0.79 kg |
Product Features
- Single-axis control: Handles the configured drive-control functions for one compatible motor axis.
- Resolver feedback: Processes feedback from a compatible motor resolver.
- Positioning functionality: Supports positioning in addition to speed and torque setpoint control.
- SIMODRIVE 611 integration: Works with the associated power module and machine-control architecture.
- Optional interface expansion: Supports designated interface modules where required.
- Dedicated axis configuration: Allows motor data, feedback parameters, and control settings to be configured for the connected drive.
- Positioning and speed control: Supports applications requiring both commanded movement and regulated motor operation.
- Legacy drive-system compatibility: Provides a control-board option for appropriately configured SIMODRIVE 611 universal HR installations.
Working Principle
The 6SN1118-1NJ01-0AA1 functions as the closed-loop control element for a single resolver-equipped motor. It receives the required drive commands and processes resolver feedback to regulate motor operation through the associated power module.
A typical drive arrangement follows this sequence:
Machine Controller → Position and Speed Commands → 6SN1118-1NJ01-0AA1 → Power Module → Motor
Motor Resolver → Feedback Signal → Control-Loop Block
During positioning, the machine controller specifies the required movement. The control unit processes the command and corresponding feedback, while the power module supplies the electrical energy required by the motor. The control loop uses the feedback signal to regulate the drive according to the configured operating parameters.
For example, a machine tool may use a single feed motor to position a cutting mechanism. The controller issues the movement command, and the control-loop block manages the associated drive-control functions. The achieved positioning performance depends on the resolver signal, motor characteristics, mechanical transmission, power stage, and parameter settings.
Resolver compatibility is essential. The motor feedback device, cable connections, and control-unit configuration must match so that the feedback signal is interpreted correctly. A resolver-based module should not be substituted with an encoder-based variant without verifying the complete drive configuration.
The control-loop block does not supply the motor’s main operating power directly. It relies on a compatible SIMODRIVE 611 power module, correctly connected resolver feedback, and a configured machine-controller interface.
Role in the SIMODRIVE 611 Control Architecture
The 6SN1118-1NJ01-0AA1 occupies the drive-control layer between the machine controller and the power stage. It processes commands and resolver feedback for one axis, while the power module drives the motor and the machine controller coordinates the machine sequence.
Machine Controller → Position and Speed Commands → 6SN1118-1NJ01-0AA1 → Power Module → Motor
Motor Resolver → Feedback Connection → Control-Loop Block
| System Component | Function |
|---|---|
| 6SN1118-1NJ01-0AA1 | Provides single-axis resolver-based control with positioning functionality |
| SIMODRIVE 611 Power Module | Supplies electrical power to the motor |
| Compatible Siemens Motor | Produces the required mechanical movement |
| Motor Resolver | Provides feedback for the drive-control loop |
| Machine Controller | Generates movement commands and coordinates machine operation |
| Resolver Feedback Cable | Carries the feedback signal to the control unit |
| Motor Power Cable | Connects the motor to its power stage |
| TERMINALS Option Module | Provides supported terminal-interface functionality |
| PROFIBUS DP2 Option Module | Adds compatible PROFIBUS communication |
| PROFIBUS DP3 Option Module | Provides the corresponding supported fieldbus interface |
| Commissioning Tools | Support parameterization and functional testing |
Industrial Applications
| Application | Typical Use |
|---|---|
| CNC Machine Tools | Controlling a resolver-based feed or positioning axis |
| Machine-Tool Feed Drives | Regulating the movement of a tool mechanism |
| Industrial Positioning Systems | Controlling a single motor-driven axis |
| Metalworking Machinery | Managing feed movement during machining |
| Automated Production Equipment | Controlling a dedicated positioning mechanism |
| Material Processing Systems | Regulating compatible motor-driven equipment |
| Machine-Tool Rebuilding | Replacing a control unit after verifying drive compatibility |
| Existing SIMODRIVE Installations | Maintaining compatible single-axis drive configurations |
| Industrial Motion-Control Cabinets | Providing closed-loop control for a dedicated axis |
| Precision Feed Mechanisms | Coordinating motor movement with controller commands |
Installation and Maintenance
- Verify the complete order number: Confirm 6SN1118-1NJ01-0AA1 and distinguish it from the speed/torque-only 6SN1118-0NJ01-0AA1.
- Check the hardware generation: Verify that the installed SIMODRIVE 611 system supports the selected universal HR control-loop block.
- Confirm motor compatibility: Check the connected motor type and resolver arrangement against the intended drive configuration.
- Verify power-module compatibility: Ensure that the associated power stage matches the motor and required operating conditions.
- Isolate the drive system: Follow the approved electrical safety procedure and verify that hazardous energy has been removed before accessing the equipment.
- Inspect resolver wiring: Check the feedback cable, connectors, shielding, and signal connections for damage or incorrect assignment.
- Review optional interfaces: Confirm whether the installation requires a TERMINALS, PROFIBUS DP2, or PROFIBUS DP3 option.
- Check motor parameters: Verify the motor data, resolver configuration, setpoint scaling, and control settings.
- Verify positioning parameters: Confirm that the required positioning functions and machine-controller commands are configured correctly.
- Test the feedback response: During controlled commissioning, verify that resolver feedback corresponds to the intended motor movement.
- Investigate positioning deviations: Check feedback wiring, command scaling, mechanical transmission, motor parameters, and power-stage operation if actual movement differs from the command.
- Document the final configuration: Record the control-unit reference, motor details, resolver connections, option modules, parameter settings, and commissioning results.
Compatible System Components
| Component | Function |
|---|---|
| Siemens SIMODRIVE 611 Power Module | Supplies electrical power to the connected motor |
| Compatible Siemens Resolver-Based Motor | Provides mechanical movement and resolver feedback |
| Motor Resolver | Supplies feedback for closed-loop regulation |
| Resolver Feedback Cable | Connects the resolver to the control unit |
| Motor Power Cable | Connects the motor to its power stage |
| Higher-Level Machine Controller | Generates movement commands and coordinates machine operation |
| Siemens 6SN1114-0NA00-0AA0 TERMINALS Option | Provides supported terminal-interface functionality |
| Siemens 6SN1114-0NB00-0AA2 PROFIBUS DP2 Option | Adds compatible PROFIBUS communication |
| Siemens 6SN1114-0NB01-0AA1 PROFIBUS DP3 Option | Provides supported PROFIBUS-DP3 communication |
| SIMODRIVE Commissioning Tools | Support parameterization and drive testing |
Recommended Related Models
| Model | Product Type | Typical Application |
|---|---|---|
| Siemens 6SN1118-1NJ01-0AA1 | 1-Axis Control-Loop Block | Single-axis resolver-based positioning |
| Siemens 6SN1118-0NJ01-0AA1 | 1-Axis Control-Loop Block | Resolver speed/torque setpoint control |
| Siemens 6SN1118-1NJ01-0AA0 | 1-Axis Control Unit | Related positioning-capable resolver configuration |
| Siemens 6SN1118-0NJ01-0AA0 | 1-Axis Control Unit | Single-axis resolver speed/torque control |
| Siemens 6SN1118-1NK01-0AA1 | 2-Axis Positioning Control Module | Two-axis resolver-based positioning |
| Siemens 6SN1114-0NB00-0AA2 | PROFIBUS DP2 Option Module | Adding supported PROFIBUS communication functionality |
Key Advantages
- Provides single-axis resolver-based closed-loop control.
- Supports positioning alongside speed and torque setpoint control.
- Integrates with the SIMODRIVE 611 universal HR architecture.
- Works with compatible power modules and higher-level machine controllers.
- Supports designated interface expansion where required.
- Allows replacement selection based on the required feedback type and control functions.
Technical FAQs
What distinguishes the 6SN1118-1NJ01-0AA1 from the 6SN1118-0NJ01-0AA1?
The 6SN1118-1NJ01-0AA1 supports positioning functionality in addition to speed and torque setpoint control. The 6SN1118-0NJ01-0AA1 is the speed/torque setpoint variant. The required drive functions should determine which model is selected.
What feedback device does this control-loop block require?
It is intended for compatible resolver-based motor feedback. The resolver, cable arrangement, signal assignment, and motor parameters must match the control-unit configuration.
Can a two-axis control board replace this single-axis unit?
Some SIMODRIVE 611 universal HR two-axis boards can be used in single-axis applications, but substitution is not automatic. The feedback technology, positioning functions, hardware generation, and power-module arrangement must all be checked.
What should be checked if the motor moves but does not reach the commanded position?
Inspect the resolver feedback, positioning parameters, command scaling, reference procedure, and mechanical transmission. Also verify that the machine controller and drive use consistent coordinate and measurement settings.