Original Siemens Cib Comm. Component 6SL3352-6TE35-0AA3 6SL33526TE350AA3 6SL3352-6TE35-OAA3 6SL3 352-6TE35-0AA3

Siemens 6SL3352-6TE35-0AA3 | SINAMICS S Replacement Control Interface Board — 380–480V, 490A Motor Module, S120 Chassis

Part Number: 6SL3352-6TE35-0AA3

Manufacturer: Siemens AG (Germany)

Product Type: Replacement Control Interface Board (Spare Part)

Product Family: SINAMICS S (6SL3352 spare part series)

Compatible Unit: SINAMICS S120 Single Motor Module, 380–480V 3AC, 490A

Overview

The 6SL3352-6TE35-0AA3 is a Siemens SINAMICS S replacement control interface board — a 6SL3352 series spare part designed to restore the control electronics of a SINAMICS S120 Single Motor Module rated for 490A output current on a 380–480V three-phase AC system.

This board forms the control interface layer within the Motor Module: it bridges the Drive-CLiQ communication from the Control Unit to the power stage IGBTs, processes the motor current feedback, manages temperature monitoring, and implements the local protective functions that keep the Motor Module operating safely.

The SINAMICS S120 is Siemens' high-performance modular drive platform for multi-axis and single-axis servo and vector control applications.

The system covers a broad power range, from compact booksize modules to large chassis format installations. 

The S120 chassis Motor Module at 490A sits at the upper end of the standard chassis range for 380–480V systems — at 400V supply, 490A output current corresponds to a motor rating in the region of 280–315kW, placing this board in the heavy-duty industrial drive sector.

At this power level, the S120 chassis Motor Module is found in large machine tools, rolling mills, printing machines, paper and board lines, test stands, and large-scale material handling systems.

The demands on the control interface board are correspondingly high — gate drive timing accuracy, current sensing fidelity, and protection response speed directly affect both the performance and the operational safety of high-power drive systems.

Key Specifications

SINAMICS S120 Motor Module — Control Interface Board Role

The S120 Motor Module's function is to convert DC bus power from the Line Module into variable-frequency, variable-voltage three-phase AC power for the motor. It does this through its IGBT power stage, which is controlled by the gate signals generated by the control interface board.

The 6SL3352-6TE35-0AA3 sits between the CU (Control Unit) and the power stage.

It receives the computed switching duty cycles from the CU over Drive-CLiQ, translates them into gate drive pulses for each of the six IGBTs in the three-phase inverter stage, and simultaneously reads back the motor phase currents from the current sensing shunts in the power stage.

These current readings are fed back to the CU, which uses them to close the current control loop.

The board also reads the heatsink NTC temperature sensors and reports heatsink temperature to the CU.

When the heatsink temperature rises toward the thermal limit — due to high load, reduced cooling airflow, or high ambient temperature — the CU applies a current derating to protect the IGBTs.

If the temperature reaches the shutdown threshold, the drive stops to protect the hardware.

Safety Integrated Functions

The 6SL3352-6TE35-0AA3 supports SINAMICS S120's Extended Safety Integrated functions. Safety Integrated is Siemens' integrated safety technology that implements functional safety functions (STO, SS1, SLS, SDI, and others) within the drive itself, without requiring external safety relays for many applications.

The control interface board plays a role in this — it implements the hardware-level safe torque off (STO) function that cuts the gate drive signals to the IGBTs when a safety stop command is received.

At the 490A current level, Safety Integrated functions are particularly important in applications where personnel may need access to areas near moving machinery, such as large format machine tools, handling systems, and process lines.

Replacement Procedure and Precautions

The 6SL3352-6TE35-0AA3 is installed inside the SINAMICS S120 Motor Module chassis. Replacement requires full isolation of the drive system, a mandatory waiting period for DC bus discharge (minimum five minutes after mains isolation, confirmed by checking DC bus voltage below 50V), and careful handling of all internal connectors and cables.

After board replacement, re-run the Drive-CLiQ auto-configuration to ensure the Motor Module is correctly identified by the Control Unit.

If Safety Integrated functions are used, perform the required safety acceptance test as specified in the drive's safety documentation. Verify all alarm and fault messages are clear before returning the drive to service.

FAQ

Q1: The S120 Motor Module at 490A generates fault F30001 (overcurrent) at no load. Cables and motor are confirmed good. Is the 6SL3352-6TE35-0AA3 the fault?

F30001 at no load with confirmed healthy motor and cabling points to a current sensing fault on the control board.

The board's current sensors are reporting a phase current when none should flow. First check all connector seating on the board. 

If connectors are secure and the fault persists, the current sensing section of the 6SL3352-6TE35-0AA3 requires replacement.

Q2: After replacing the board, the Drive-CLiQ topology shows the Motor Module with a "component mismatch" warning. What is the cause?

A component mismatch warning after board replacement typically indicates that the Electronic Rating Plate (ERP) data on the new board does not match what was previously stored in the Control Unit's drive configuration.

Re-run the Drive-CLiQ topology scan in STARTER or TIA Portal. The CU will re-read the ERP from the new board and update its stored topology.

Confirm the new component data and accept the configuration.

Q3: The system uses Safety Integrated functions. After replacing the 6SL3352-6TE35-0AA3, what additional steps are needed?

Safety Integrated functions that operate through the drive (STO, SS1, SLS, etc.) must be re-verified after any hardware replacement that affects the safety function.

Perform the safety acceptance test as described in the drive's safety documentation — this typically involves testing each safety function through its full operation cycle and confirming the test results in the safety logbook. 

The safety parameters are stored in the CU, not on the board, so they do not need to be re-entered.

Q4: The AA3 revision is being installed but the drive originally had AA0. Is there any commissioning difference?

Revision AA3 is backward compatible with AA0 and is a drop-in replacement. No additional commissioning steps are needed due to the revision change.

Drive-CLiQ auto-configuration handles the component recognition automatically. 

The later revision incorporates component and reliability improvements but is functionally identical in its interface to the CU and Motor Module assembly.

Q5: Can the 6SL3352-6TE35-0AA3 board be installed in a Motor Module of different current rating, such as the 380-480V 400A module?

No. Control interface boards in the 6SL3352 series are matched to specific current ratings because the gate drive parameters, current sensing calibration, and thermal monitoring setpoints are tuned for the specific IGBT module and power section of each current-rated Motor Module.

Using a board from a 490A module in a 400A module (or vice versa) will produce incorrect operation. 

Always match the replacement board part number to the exact current rating of the installed Motor Module.