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- Siemens
- 6SN1118-0NJ01-0AA2
- 1-Axis Control Loop Block
- Germany
- 305 × 51 × 127 mm
- 0.56 kg
- Xiamen, China
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Product Overview
The Siemens 6SN1118-0NJ01-0AA2 is a SIMODRIVE 611 universal HRS2 single-axis closed-loop control module for resolver-based motor feedback. It belongs to the SIMODRIVE 611 drive system and supports speed and torque setpoint control in compatible industrial motion-control applications.
In a machine-tool drive system, the controller must coordinate the commanded motor operation with feedback from the connected motor. This module processes the required control information and resolver feedback as part of the drive-control loop, working with the associated power module to regulate motor operation.
The single-axis configuration is suitable for installations that require an individual control channel for a resolver-equipped motor. Typical applications include compatible machine-tool feed drives, motorized positioning mechanisms, and industrial machinery requiring controlled motor movement. Actual suitability depends on the motor, power module, feedback arrangement, and control-system configuration.
The 6SN1118-0NJ01-0AA2 is associated with the HRS2 control-board generation. Although it shares the general single-axis resolver-control function with the 6SN1118-0NJ01-0AA1, the two order numbers identify different hardware or software-generation configurations. Replacement selection should therefore account for the installed system generation and required compatibility, rather than treating the suffix as an interchangeable option.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Model / Article Number | 6SN1118-0NJ01-0AA2 |
| Product Family | SIMODRIVE 611 universal HRS2 |
| Product Type | 1-Axis Closed-Loop Control Module |
| Module Configuration | Single Axis |
| Feedback Type | Resolver |
| Control Function | Speed / Torque Setpoint Control |
| Drive System | SIMODRIVE 611 |
| Control Board Generation | HRS2 |
| Optional Expansion | Compatible option modules, subject to configuration |
| Application | Compatible resolver-based industrial drive systems |
| Dimensions | 305 × 51 × 127 mm |
| Weight | 0.56 kg |
Product Features
- Single-axis drive control: Provides closed-loop control functionality for one compatible resolver-based axis.
- Resolver feedback: Supports motor feedback through the specified resolver arrangement.
- Speed and torque setpoints: Supports the corresponding drive-control mode.
- HRS2 control-board generation: Identifies the hardware generation associated with this order number.
- SIMODRIVE 611 integration: Operates within the corresponding drive-converter architecture.
- Expandable configuration: Supports compatible optional interfaces where required by the installation.
- Motor-control coordination: Works with the associated power module and higher-level controller.
- Variant-specific selection: Requires verification of the exact order number and system configuration when replacing an existing module.
Working Principle
The 6SN1118-0NJ01-0AA2 participates in a closed-loop motor-control process. It receives the configured speed or torque setpoint and processes feedback from a compatible resolver-equipped motor. The associated drive electronics use this information to regulate motor operation.
A typical drive arrangement follows this sequence:
Machine Controller → Control Module → Power Module → Motor → Resolver Feedback → Control Module
When a machine controller issues a drive command, the control system evaluates the requested operating condition alongside the available motor feedback. The control module works with the power module to adjust the drive response, while the resolver supplies information about the motor’s operating state.
For example, a machine-tool feed mechanism may require controlled movement during a machining cycle. The control module processes the drive command and resolver feedback so that the motor can operate according to the configured control strategy. Actual axis performance also depends on the mechanical transmission, motor characteristics, power-stage configuration, and commissioning parameters.
Resolver compatibility is essential. A control module specified for resolver feedback should not automatically be substituted with a variant intended for a different encoder technology. The feedback device, cable, motor, and control module must form a compatible measuring and control chain.
The module does not independently supply the motor’s main operating power. It functions as part of the larger SIMODRIVE 611 system, which includes the appropriate power module, motor, feedback connections, and higher-level control interface.
Role in the SIMODRIVE 611 Control Architecture
The 6SN1118-0NJ01-0AA2 occupies the drive-control layer between the machine controller and the power stage. It processes the configured setpoint and feedback information, while the associated power module drives the motor.
Machine Controller → Setpoint Interface → 6SN1118-0NJ01-0AA2 → Power Module → Motor
Motor Resolver → Feedback Connection → Control Module
| System Component | Function |
|---|---|
| 6SN1118-0NJ01-0AA2 | Provides single-axis resolver-based closed-loop control |
| SIMODRIVE 611 Power Module | Supplies the electrical power required by the motor |
| Compatible Siemens Motor | Converts electrical energy into mechanical movement |
| Motor Resolver | Provides feedback for the control process |
| Machine Controller | Coordinates motion commands with the machine sequence |
| Setpoint Interface | Transfers the required speed or torque command |
| Compatible Option Module | Adds supported communication or terminal functionality |
| Motor Power Cable | Connects the motor to the power module |
| Resolver Cable | Carries feedback signals to the control system |
| Commissioning Software | Supports parameterization and drive setup |
Industrial Applications
| Application | Typical Use |
|---|---|
| CNC Machine Tools | Controlling compatible resolver-based feed drives |
| Machine-Tool Feed Mechanisms | Regulating motor operation according to the configured setpoint |
| Industrial Positioning Systems | Controlling individual motor-driven mechanisms |
| Metalworking Equipment | Supporting controlled motion during machine operation |
| Automated Production Machinery | Integrating a single drive axis into a machine sequence |
| Mechanical Feed Systems | Coordinating motor movement with the higher-level controller |
| Industrial Motion Control | Providing a resolver-feedback control channel |
| Drive Cabinet Maintenance | Replacing a module after verifying the installed system generation |
| Machine Rebuilding Projects | Maintaining compatible SIMODRIVE 611 drive configurations |
| Legacy Automation Systems | Supporting existing resolver-based motion-control arrangements |
Installation and Maintenance
- Verify the complete order number: Confirm 6SN1118-0NJ01-0AA2 and distinguish it from the related 6SN1118-0NJ01-0AA1 hardware generation.
- Check system compatibility: Confirm that the installed SIMODRIVE 611 system supports the HRS2 control-board configuration.
- Verify motor feedback: Check that the connected motor uses a compatible resolver and that the feedback arrangement matches the module.
- Confirm the power module: Verify that the associated power stage is suitable for the motor and the intended axis-control application.
- Isolate the drive system: Follow the prescribed electrical safety procedure and verify that hazardous energy has been removed before accessing the control unit.
- Inspect connectors and wiring: Check the resolver connection, motor power connections, and control interfaces for damage or loose contacts.
- Review optional interfaces: Confirm whether the installation uses a compatible terminal or communication option and check its configuration.
- Verify the parameter set: Confirm that the motor data, control mode, and setpoint scaling match the installed drive arrangement.
- Check feedback signals: During controlled commissioning, verify that the resolver feedback is detected correctly and behaves consistently with the motor’s operating state.
- Test the control response: Confirm that the motor responds appropriately to the configured setpoint and that the machine sequence receives the expected status information.
- Investigate abnormal operation: Check the feedback cable, motor data, power module, setpoint interface, and control parameters before attributing a fault to the control module.
- Document the configuration: Record the module order number, control-board generation, motor reference, feedback arrangement, option modules, and commissioning settings.
Compatible System Components
| Component | Function |
|---|---|
| Siemens SIMODRIVE 611 Power Module | Supplies the associated motor |
| Compatible Siemens Resolver-Based Motor | Provides the mechanical drive and resolver feedback |
| Motor Resolver | Supplies feedback for closed-loop regulation |
| Resolver Feedback Cable | Connects the motor feedback device to the control system |
| Motor Power Cable | Connects the motor to the power stage |
| Higher-Level Machine Controller | Generates motion commands and coordinates machine operation |
| Compatible Terminal Option | Provides the required connection interface where specified |
| Compatible PROFIBUS Option | Supports communication where required and supported by the configuration |
| SIMODRIVE Commissioning Tools | Support parameterization and troubleshooting |
| Drive-System Documentation | Defines the correct component combination and commissioning procedure |
Recommended Related Models
| Model | Product Type | Typical Application |
|---|---|---|
| Siemens 6SN1118-0NJ01-0AA2 | 1-Axis Control Loop Block | Single-axis resolver-feedback speed/torque control |
| Siemens 6SN1118-0NJ01-0AA1 | 1-Axis Closed-Loop Control Module | Related single-axis resolver-control configuration |
| Siemens 6SN1118-1NJ01-0AA1 | 1-Axis Positioning Control Module | Resolver-based single-axis positioning |
| Siemens 6SN1118-0NK01-0AA1 | 2-Axis Closed-Loop Control Module | Two-axis resolver-feedback control |
| Siemens 6SN1118-1NK01-0AA1 | 2-Axis Positioning Control Module | Two-axis positioning with resolver feedback |
| Siemens 6SN1114-0NB00-0AA2 | PROFIBUS DP2 Option Module | Adding compatible PROFIBUS communication functionality |
Key Advantages
- Provides a single-axis control channel for compatible resolver-based drives.
- Supports speed and torque setpoint control.
- Integrates into the SIMODRIVE 611 drive architecture.
- Uses resolver feedback as part of the closed-loop control process.
- Supports compatible system expansion options.
- Helps maintain existing drive installations when hardware generation and configuration are correctly matched.
Technical FAQs
What does the HRS2 designation mean for the 6SN1118-0NJ01-0AA2?
HRS2 identifies the associated SIMODRIVE 611 universal control-board generation. When selecting a replacement, verify the installed hardware and software generation rather than relying only on the shared single-axis resolver-control function.
Does this module support resolver feedback or sin/cos encoder feedback?
This model is identified as a single-axis resolver control module. If the motor uses a sin/cos encoder or another feedback technology, confirm compatibility with the corresponding control-unit variant before connecting the feedback device.
Can the 6SN1118-0NJ01-0AA2 replace the 6SN1118-0NJ01-0AA1 directly?
The two models have closely related control functions, but their order numbers identify different hardware or software-generation configurations. Verify system compatibility, control-board generation, and parameter requirements before treating them as interchangeable.
What should be checked if the drive does not follow the commanded setpoint?
Check the motor feedback connection, motor parameters, setpoint scaling, power-module status, and configured control mode. Also confirm that the controller and control module use the expected interface and that the complete drive chain is configured correctly.