Siemens C98043-A7100-L3 SINAMICS DCM Control Unit Board
A CUD hardware board identity used in SINAMICS DCM DC converters and separated here from the complete 6RY spare-part article number.
Technical Summary
C98043-A7100-L3 identifies a Siemens SINAMICS DCM Control Unit board hardware version. Siemens documentation lists L3 among the CUD hardware versions that support all SINAMICS DCM firmware versions.
The hardware version is read from the label on the right side of the CUD. For procurement, distinguish this PCB identity from 6RY1803-0AA00-0AA1, the standard control-electronics spare article supplied with terminals and 32 MB memory.
Specifications
| Manufacturer | Siemens |
|---|---|
| PCB Identity | C98043-A7100-L3 |
| Product Family | SINAMICS DCM DC Converter |
| Board Function | Control Unit board (CUD) |
| Hardware Identification | Right-side CUD label |
| Firmware Support | Documented for all SINAMICS DCM firmware versions |
| Firmware Display | Read via diagnostic parameter r50060[6] |
| Related Spare Article | 6RY1803-0AA00-0AA1 standard control electronics |
| Supply Scope | Verify terminals, memory and accessories in the quotation |
| Compatibility Basis | Converter MLFB, CUD label, option population and connector layout |
Features
- Provides the central control-board hardware for SINAMICS DCM operation.
- Uses a clearly labeled hardware identity for service verification.
- Supports all documented SINAMICS DCM firmware versions for the L3 hardware family.
- Separates board identity from the commercial spare-part supply scope.
Compatibility
- Confirm the complete SINAMICS DCM converter MLFB and CUD hardware label.
- Compare memory, terminal assemblies, option modules and connector population.
- Record firmware, parameter set, fieldbus settings and technology functions.
- Clarify whether the requirement is the bare C98043-A7100-L3 board or the 6RY spare package.
Replacement
- Back up parameters and record firmware, licenses, options and terminal wiring.
- Use ESD controls and label every removable connector before the exchange.
- After installation, restore controlled data, verify I/O and communications, and run the DC drive through approved interlock and functional tests.
FAQ
C98043-A7100-L3: Should a quotation use the PCB number or a 6RY article number?
State the required supply scope. The PCB number identifies the board, while the 6RY article identifies a packaged Siemens spare.
C98043-A7100-L3: What prevents confusion with L4, L103 or L204 hardware?
Provide the right-side CUD label, converter MLFB, option population and connector photographs; do not select from appearance alone.
C98043-A7100-L3: Does broad firmware support remove the need for a backup?
No. Preserve firmware, parameters, fieldbus settings, technology functions and licenses before service work.
C98043-A7100-L3: Which accessories should be listed in the quote?
Identify terminals, memory media, option boards, mounting hardware and any separately shipped connectors.
C98043-A7100-L3: What test evidence is useful for a repaired board?
Request power-up, memory, communication, I/O, diagnostics and analog-channel tests with serial and hardware traceability.
C98043-A7100-L3: How should a critical spare be stored?
Use sealed ESD packaging, protect terminals, retain the label record and periodically review firmware and host compatibility.
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