Siemens 6SL3351-6TE32-6AA3 SINAMICS CIB Module
The replacement CIB control interface board for the 400 V, 260 A SINAMICS S Power Module execution.
Product Profile
6SL3351-6TE32-6AA3 is a Siemens replacement CIB control interface board for a SINAMICS S Power Module in the 400 V, 260 A class. It provides the internal interface between converter control and the assigned power hardware.
The board is a service component, not a CU320 control unit and not a stand-alone PROFINET controller. Compatibility depends on the exact Power Module, board revision, connector layout and service instructions.
Technical Data
| Manufacturer | Siemens |
|---|---|
| Model | 6SL3351-6TE32-6AA3 |
| Product Family | SINAMICS S120 / S chassis power components |
| Product Type | Replacement CIB control interface board |
| Assigned Power Module Class | 400 V, 260 A |
| Assigned Complete Powerblock Reference | 6SL3351-1AE32-6AA1 |
| Service Function | Internal control interface for the matching Power Module |
| Installation Boundary | Manufacturer-assigned chassis Power Module only |
| Revision Requirement | Complete AA3 suffix retained |
| Connector Check | All ribbon, feedback, gate-control and auxiliary connectors |
| Mechanical Check | Board mounting, clearances and insulation barriers |
| Handling | Safe isolation, DC-link discharge and grounded ESD controls |
| Commissioning Basis | Restore host-drive configuration and verify power-stage diagnostics |
System Role
- Connects the host drive control architecture to the 260 A Power Module electronics.
- Carries assigned control, feedback and diagnostic interfaces inside the chassis unit.
- Restores a diagnosed CIB position without changing the approved power-module rating.
- Operates only as part of the matching SINAMICS drive assembly.
Compatibility
- Confirm the complete host Power Module MLFB and 400 V, 260 A execution.
- Do not confuse the CIB with a CU320 control unit or with nearby current-class CIB codes.
- Match hardware suffix, connector population, mounting and all service labels.
- Preserve the parameter archive, firmware record and Drive-CLiQ topology.
Applications
- Service replacement in the assigned SINAMICS S Power Module.
- Planned spare holding for a documented 260 A drive fleet.
- Converter refurbishment after diagnostics isolate the control interface board.
FAQ
Why must the host Power Module be identified before ordering 6SL3351-6TE32-6AA3?
The CIB is assigned to the 400 V, 260 A Power Module; nearby boards can fit different current classes or power hardware.
Is 6SL3351-6TE32-6AA3 a PROFINET Control Unit?
No. 6SL3351-6TE32-6AA3 is an internal CIB service board for the Power Module, not a stand-alone CU320 or network controller.
What should be preserved before replacing 6SL3351-6TE32-6AA3?
Save drive parameters and topology, record fault history, and photograph every connector, label, switch, mounting point and grounding connection.
Which diagnosis reduces the risk of an unnecessary 6SL3351-6TE32-6AA3 exchange?
Check auxiliary supplies, power semiconductors, feedback circuits, ribbon cables, cooling and host control-unit diagnostics before isolating the fault to the CIB.
How should the drive be released after installing 6SL3351-6TE32-6AA3?
Restore only the approved configuration, review diagnostics and complete controlled enable, no-load and loaded tests with qualified drive-service personnel.
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