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- Siemens
- 6SN1118-0AE11-0AA1
- Closed-Loop Plug-In Control Unit
- Germany
- 330 × 76 × 152 mm
- 0.57 kg
- Xiamen, China
- New & In Stock
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Product Overview
The Siemens 6SN1118-0AE11-0AA1 is a SIMODRIVE 611-A plug-in closed-loop control unit for two feed-drive axes using compatible Siemens 1FT5 motors and a standard interface. It belongs to the analog-control generation of the SIMODRIVE 611-A drive system and is intended for machine-tool applications that require coordinated feed-axis operation.
In a CNC machine, the feed-drive control unit manages the control functions associated with motor movement. It works with the drive power section, motor feedback arrangement, and numerical control system to regulate the connected axes. The control unit does not supply the motor’s main power directly; that function is handled by the associated power module.
The two-axis configuration allows the module to support two feed-drive axes within the specified system architecture. Depending on the machine design, these axes may control a table, carriage, tool slide, or another positioning mechanism. The numerical control system determines the commanded movement, while the drive system responds according to the configured control loops and operating parameters.
The standard interface is an important part of the model’s identification. It distinguishes this unit from other SIMODRIVE control variants with different interface arrangements or feedback requirements. The 6SN1118-0AE11-0AA1 should therefore be considered within its specified 1FT5 feed-drive configuration rather than as a universal replacement for all SIMODRIVE 611 control units.
For maintenance engineers, the control unit is relevant when servicing an existing machine that uses the corresponding SIMODRIVE 611-A architecture. Retaining the correct control configuration helps preserve the intended interaction between the numerical control, drive power section, and motor feedback system.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Model | 6SN1118-0AE11-0AA1 |
| Product Family | SIMODRIVE 611-A |
| Product Type | Plug-In Closed-Loop Control Unit |
| Axis Configuration | 2 axes |
| Drive Application | Feed drives |
| Compatible Motor Family | Siemens 1FT5 |
| Interface Type | Standard interface |
| Control Technology | Analog |
| System Function | Closed-loop feed-drive control |
| Installation Type | Plug-in control unit |
| Dimensions | 330 × 76 × 152 mm |
| Weight | 0.57 kg |
Product Features
- Dual-axis configuration: Supports two feed-drive axes within the compatible SIMODRIVE 611-A architecture.
- Closed-loop control: Regulates the associated feed drives using the configured command and feedback arrangement.
- Standard interface: Matches the interface configuration specified for this model.
- 1FT5 motor application: Intended for compatible Siemens 1FT5 feed-drive motors.
- SIMODRIVE 611-A integration: Works as part of the modular drive system rather than as a standalone motor controller.
- Analog-control architecture: Belongs to the analog-control generation of the SIMODRIVE 611-A family.
- Power-module coordination: Works with the appropriate power section to control motor operation.
- Numerical-control integration: Supports feed-axis operation as part of a compatible machine-tool control system.
- Axis-specific configuration: Requires the appropriate parameters for the connected motors and feedback arrangements.
- Machine-tool suitability: Fits compatible CNC feed-drive applications requiring controlled axis movement.
Working Principle
The 6SN1118-0AE11-0AA1 performs closed-loop control for two feed-drive axes within the SIMODRIVE 611-A system. It processes the relevant control commands and feedback signals and works with the associated power module to regulate motor operation.
Numerical Control → SIMODRIVE 611-A Control Unit → Power Module → Feed-Drive Motors → Machine Axes
The numerical control system generates the motion commands required for each axis. The control unit processes the drive-control requirements and uses the configured feedback information to regulate the connected motors.
The power module supplies the electrical energy required by the motors. The control unit manages the associated control process, while the motors convert electrical energy into mechanical movement through the machine’s feed mechanisms. Feedback allows the drive system to respond to differences between commanded and actual operating conditions.
For example, on a CNC milling machine, two feed axes may need to move in a coordinated manner while the tool follows a programmed path. The numerical control calculates the required movement, and the drive system regulates the motors according to the configured axis parameters.
Correct operation depends on compatibility between the control unit, power module, motor, feedback arrangement, and numerical control. Incorrect axis parameters or faults in associated components can affect motion even when the control unit itself is operating normally.
Role in a SIMODRIVE 611-A Feed-Drive Architecture
The 6SN1118-0AE11-0AA1 occupies the drive-control position between the numerical control and the power section. It provides closed-loop control for the configured axes, while the power module supplies motor power and the mechanical transmission converts motor movement into machine-axis motion.
Numerical Control → SIMODRIVE 611-A Control Unit → Power Module → 1FT5 Motors → Machine Feed Mechanisms
| System Component | Function |
|---|---|
| Siemens 6SN1118-0AE11-0AA1 | Provides two-axis closed-loop control for the specified feed-drive configuration |
| SIMODRIVE 611-A Power Module | Supplies power to the connected drive motors |
| Siemens 1FT5 Feed-Drive Motor | Converts electrical energy into mechanical movement |
| Motor Feedback System | Supplies feedback signals for the configured control loops |
| Numerical Control System | Generates axis commands and coordinates machine movement |
| Mechanical Feed Mechanism | Transfers motor movement to the machine axis |
| Drive Power Supply | Supplies electrical energy to the drive system |
| Control Cabinet | Houses the drive modules and associated control equipment |
| Machine Interlock System | Coordinates permitted operation with machine conditions and protective functions |
Industrial Applications
| Application | Typical Use |
|---|---|
| CNC Milling Machines | Regulating compatible feed axes during programmed machining operations |
| CNC Turning Machines | Supporting controlled feed movement within the machine’s drive architecture |
| Grinding Machines | Controlling feed mechanisms in compatible SIMODRIVE installations |
| Machining Centers | Integrating two feed axes into a compatible numerical-control system |
| Precision Machine Tools | Supporting controlled axis movement through the configured drive loops |
| Automated Production Machinery | Regulating feed mechanisms requiring closed-loop motor control |
| Industrial Motion Systems | Operating compatible feed axes using specified 1FT5 motors |
| CNC Retrofit Projects | Maintaining an existing SIMODRIVE 611-A control architecture |
| Legacy Manufacturing Equipment | Supporting continued operation of compatible analog-control drive systems |
| Machine Maintenance Operations | Replacing a matching control unit within the existing drive configuration |
Installation and Maintenance
- Confirm the control-unit reference: Verify that 6SN1118-0AE11-0AA1 matches the installed SIMODRIVE 611-A system and required two-axis configuration.
- Check the drive architecture: Identify the associated power module, numerical control, motor types, and feedback arrangements before replacement.
- Isolate the drive system: Disconnect the relevant electrical supplies and follow the machine’s established lockout and stored-energy discharge procedures.
- Record the original configuration: Document the module position, axis assignments, parameter settings, and associated connections before removal.
- Inspect the plug-in interface: Check the mounting interface and surrounding connections for damage, contamination, or signs of overheating.
- Verify motor compatibility: Confirm that the connected feed-drive motors and feedback arrangements match the specified configuration.
- Install the control unit: Fit the module into the designated SIMODRIVE 611-A position according to the system installation procedure.
- Check associated connections: Inspect the control, feedback, and power-module interfaces relevant to both axes.
- Restore drive parameters: Establish the appropriate settings for the installed motors, feedback systems, and machine axes.
- Verify axis assignments: Confirm that both axes are assigned correctly and that their parameters correspond to the machine configuration.
- Test controlled movement: Perform the approved commissioning checks and verify axis response before returning the machine to production.
- Record maintenance results: Document the installed module reference, parameter changes, fault findings, and commissioning results for future service work.
Related Components
| Component | Function |
|---|---|
| Siemens 6SN1118-0AE11-0AA1 | Two-axis plug-in closed-loop control unit for compatible SIMODRIVE 611-A feed drives |
| SIMODRIVE 611-A Power Module | Supplies motor power for the configured axes |
| Siemens 1FT5 Feed-Drive Motor | Provides mechanical movement for the machine axis |
| Motor Feedback Components | Supply feedback signals required by the drive-control arrangement |
| Numerical Control System | Generates motion commands and coordinates machine operation |
| SIMODRIVE 611-A Drive System | Provides the modular drive architecture for compatible applications |
| Drive Power Supply | Supplies electrical energy to the drive system |
| Control Cabinet Components | Support installation and electrical integration of the drive modules |
Recommended Related Models
| Model / Product Family | Product Type | Typical Application |
|---|---|---|
| Siemens 6SN1118-0AE11-0AA0 | SIMODRIVE 611-A Plug-In Closed-Loop Control Unit, 2 Axes | Feed drives with 1FT5 motors and standard interface |
| Siemens 6SN1118-0AE11-0AA1 | SIMODRIVE 611-A Plug-In Closed-Loop Control Unit, 2 Axes | Matching two-axis feed-drive configuration |
| Siemens 6SN1118-0AD11-0AA1 | SIMODRIVE 611-A Plug-In Closed-Loop Control Unit, 1 Axis | Standard-interface feed-drive applications |
| Siemens 6SN1118-0AA11-0AA1 | SIMODRIVE 611-A Feed-Drive Control Unit | Compatible feed-drive applications using the specified interface |
| Siemens SIMODRIVE 611-A | Modular Drive System | Compatible machine-tool feed-drive applications |
| Siemens 1FT5 Motor Family | Feed-Drive Synchronous Motors | Motor applications specified for the corresponding drive configuration |
Key Advantages
- Supports two feed-drive axes within a compatible SIMODRIVE 611-A system.
- Provides closed-loop control for the specified 1FT5 motor configuration.
- Uses the standard interface arrangement specified for this model.
- Integrates with the associated power module and numerical control.
- Supports machine-tool feed-axis operation within the existing analog-control architecture.
Technical FAQs
What is the intended application of the 6SN1118-0AE11-0AA1?
It is intended for two-axis feed-drive applications using compatible Siemens 1FT5 motors and the standard interface within a SIMODRIVE 611-A system. Its suitability depends on the complete drive and feedback configuration.
Does the control unit supply power directly to the motors?
No. The associated SIMODRIVE power module supplies the motor power. The control unit handles the drive-control functions and works with the configured feedback system to regulate motor operation.
How does the standard interface affect model selection?
The standard interface identifies the control-unit configuration for the specified drive arrangement. A unit with a different interface or feedback configuration should not be treated as interchangeable without establishing compatibility with the complete drive system.
What should be checked if one axis fails to move after replacement?
Check the module installation, power-module status, motor and feedback connections, axis assignments, drive parameters, and communication with the numerical control. The fault may originate in another part of the drive system rather than in the control unit itself.