6SL3055-0AA00-5AA3 SINAMICS S120 SMC10 Resolver Sensor Module 30mm

The 6SL3055-0AA00-5AA3 is a SINAMICS S120 SMC10 Sensor Module designed specifically for evaluating resolver feedback signals in modular drive systems.

It receives the analog position signals generated by a compatible resolver and converts the feedback information for transmission through DRIVE-CLiQ to the connected drive Control Unit.

The SMC10 enables motors without a native DRIVE-CLiQ encoder interface to be integrated into an S120 control architecture when resolver feedback is used.

Unlike a Motor Module, the 6SL3055-0AA00-5AA3 does not supply electrical power to a motor. It also does not independently execute speed, torque or position-control algorithms.

Its dedicated function is to provide the feedback interface required for closed-loop motor control.

The narrow 30 mm cabinet-mounted construction is suitable for installation in drive cabinets where encoder feedback must be separated from the motor power stage.

The official product configuration does not include a DRIVE-CLiQ cable, so the required cable must be selected separately according to the cabinet layout and system topology.

Key Features

• Dedicated resolver evaluation module
• Converts resolver feedback for DRIVE-CLiQ
• Supports one external feedback channel
• 30 mm cabinet-mounted construction
• Suitable for closed-loop motor control
• Separates feedback wiring from the power module
• Designed for modular drive systems
• DRIVE-CLiQ cable not included
• Not a Motor Module or Control Unit

Typical Applications

• Resolver-equipped servo motors
• CNC feed axes
• Packaging machinery
• Printing equipment
• Retrofit drive systems

Resolver Feedback Evaluation

The 6SL3055-0AA00-5AA3 is designed specifically for motors fitted with resolver feedback.

A resolver supplies analog sine and cosine signals corresponding to the motor-shaft angle.

The SMC10 evaluates these signals so that the drive controller can determine:

• Rotor position
• Shaft speed
• Direction of rotation
• Motor commutation position
• Axis operating status

Accurate feedback evaluation is essential for stable closed-loop motor operation.

Typical Signal Path

Resolver-Equipped Motor

Resolver Cable

SMC10 Sensor Module

DRIVE-CLiQ

Drive Control Unit

Motor Control Calculation

The Motor Module supplies power to the motor, while the SMC10 provides the feedback data required by the controller.

Dedicated Resolver Interface

The SMC10 should only be positioned as a resolver feedback module.

It should not be described as suitable for every encoder type.

For other feedback technologies, a different Sensor Module may be required.

Examples include:

• Sin/Cos incremental encoders
• EnDat absolute encoders
• TTL incremental encoders
• HTL incremental encoders
• SSI absolute encoders

The feedback interface must match the installed motor encoder exactly.

SMC10 vs SMC20

SMC10

Evaluates resolver feedback signals.

SMC20

Evaluates Sin/Cos 1 Vpp incremental encoders and supported EnDat absolute encoders.

These modules cannot be selected only according to their similar housing.

SMC10 vs SMC30

SMC10

Dedicated to resolver feedback.

SMC30

Designed for supported TTL, HTL and SSI encoder configurations.

The correct Sensor Module depends on the encoder signal type rather than the motor power rating.

30 mm Cabinet-Mounted Design

The 6SL3055-0AA00-5AA3 uses a narrow 30 mm cabinet-mounted format.

This design supports:

• Compact cabinet installation
• Separation of motor feedback and power wiring
• Side-by-side system component placement
• Organized encoder cable routing
• Easier Sensor Module replacement

Installation space and cable-bending radius should still be verified before replacement.

DRIVE-CLiQ Communication

The SMC10 transmits evaluated feedback data to the compatible Control Unit through DRIVE-CLiQ.

Typical DRIVE-CLiQ functions include:

• Component identification
• Encoder feedback transmission
• Operating-status exchange
• Diagnostic communication
• System topology detection
• Simplified commissioning

The official product package does not include the DRIVE-CLiQ cable.

Closed-Loop Motor Control

The SMC10 supplies feedback information used by the drive controller for closed-loop control.

Depending on the machine configuration, this may support:

• Speed regulation
• Torque regulation
• Rotor-position detection
• Positioning functions
• Dynamic acceleration
• Controlled deceleration

The control performance depends on the complete combination of motor, resolver, Motor Module, Control Unit and drive parameters.

External Sensor Module Function

An external Sensor Module is useful when:

• The motor encoder does not have native DRIVE-CLiQ
• Feedback wiring must terminate in the control cabinet
• The existing machine uses a resolver-equipped motor
• The original Motor Module lacks the required resolver input
• A failed SMC10 must be replaced without redesigning the axis

The SMC10 does not convert the resolver motor into a DRIVE-CLiQ motor; it provides the required feedback interface within the drive system.

System Integration

A complete axis may include:

• Line Module
• Shared DC link
• Control Unit
• Motor Module
• SMC10 Sensor Module
• Resolver-equipped motor
• Resolver feedback cable
• DRIVE-CLiQ cable
• Approved motor and encoder parameters

The SMC10 cannot operate as a complete servo drive by itself.

Replacement Identification

Correct Model Number

6SL3055-0AA00-5AA3

Correct Product Type

SMC10 Sensor Module

Supported Feedback

Resolver

Module Width

30 mm

DRIVE-CLiQ Cable

Not Included

Before replacement, confirm:

• Complete order number
• Resolver signal type
• Motor feedback configuration
• Existing connector arrangement
• Control Unit compatibility
• Firmware version
• DRIVE-CLiQ topology
• Required cable length
• Stored motor parameters

Do not select a Sensor Module only according to the 6SL3055 prefix or its physical appearance.

Installation Guidelines

Disconnect the complete drive-system power.

Wait for the DC link to discharge fully.

Verify the absence of hazardous voltage.

Use electrostatic-discharge protection.

Record the existing cable connections.

Confirm the resolver wiring.

Verify the exact model number.

Install the module securely.

Connect the resolver cable correctly.

Install the required DRIVE-CLiQ cable.

Restore the approved drive parameters.

Check encoder identification.

Test the motor at reduced speed.

Verify position and direction feedback.

Check all machine safety functions.

Installation should be completed by qualified drive-system personnel.

FAQ

Q1: What is 6SL3055-0AA00-5AA3?

A1: It is a SINAMICS S120 SMC10 Sensor Module used to evaluate resolver feedback signals.

Q2: Which encoder type does it support?

A2: It is designed specifically for resolver feedback.

Q3: Does it support Sin/Cos or EnDat encoders?

A3: Those encoder types are normally associated with other Sensor Modules such as the SMC20. The installed encoder interface must be verified.

Q4: Does it directly control a motor?

A4: No. It supplies resolver feedback data to the connected drive Control Unit.

Q5: Does it supply motor power?

A5: No. Motor power is supplied by a compatible Motor Module.

Q6: What is the module width?

A6: The cabinet-mounted SMC10 is 30 mm wide.

Q7: Does it use DRIVE-CLiQ?

A7: Yes. Evaluated feedback information is transmitted through DRIVE-CLiQ.

Q8: Is a DRIVE-CLiQ cable included?

A8: No. The official product description states that the module is supplied without a DRIVE-CLiQ cable.

Q9: Can an SMC20 directly replace it?

A9: No. SMC10 and SMC20 support different encoder technologies.

Q10: Where is the SMC10 commonly installed?

A10: It is installed in a control cabinet as part of a resolver-equipped closed-loop motor axis.