Siemens C98043-A7001-L2 CUD1 Processor Electronics Board
The CUD1 control electronics execution used by SIMOREG DC MASTER product-state A3 hardware with software version 3.x.
Technical Summary
Siemens C98043-A7001-L2 is the CUD1 processor electronics board documented for SIMOREG DC MASTER devices with product state A3. Siemens assigns this L2 execution to software versions 3.x; the earlier L1 board is associated with software versions 1.x and 2.x.
The CUD1 performs open- and closed-loop control, evaluates analog and binary I/O, handles encoder signals and processes converter electrical and temperature measurements. Its terminals and interfaces are part of the installed drive control design.
A controlled exchange therefore requires the complete converter nameplate, board product state, software record, parameter backup, I/O wiring and encoder arrangement—not the board family alone.
Specifications
Siemens
C98043-A7001-L2
CUD1
SIMOREG DC MASTER
A3
3.x
Open- and closed-loop converter control
G-SST1 at X300 on the PMU
G-SST2 at terminals 56–60
Differential A/A− and B/B− track inputs
Analog and binary I/O referenced to electronics ground
Line, armature and field values plus motor and heatsink temperature inputs
Features
Central control processing
Coordinates the SIMOREG control loops and the converter measurement chain.
Integrated signal evaluation
Processes analog, binary, encoder, current, voltage and temperature information on the CUD1 platform.
Two documented serial paths
Provides G-SST1 at the PMU connection and G-SST2 on the terminal strip.
Software-bound execution
The L2 hardware identity is tied to the 3.x software branch and must remain visible in service records.
Compatibility
Product-state boundary
Use C98043-A7001-L2 with the documented A3 execution; do not substitute the L1 version solely because the connector layout appears similar.
Software and parameter set
Record r060 and r065, archive parameters and preserve option-board and communication settings.
Encoder interface
Verify signal type, complementary tracks, electronics-ground references and terminal assignments.
Host converter identity
Match the complete SIMOREG MLFB, rated data, power section and connected PMU before approval.
Replacement
Build the service record
Capture the converter label, C98043-A7001-L2 label, product state, software values, parameters and every plug position.
Transfer only to the matched execution
Install the approved CUD1 hardware and restore the controlled parameter set under the Siemens procedure.
Prove control and feedback
Check I/O, encoder plausibility, motor temperature path, current and voltage feedback, direction and protection behavior.
About IndustryParts
https://www.industryparts.com/Traceable handling for C98043-A7001-L2
IndustryParts keeps the submitted C98043-A7001-L2 identity, requested quantity and installed-system evidence together so the proposed supply can be checked before dispatch.
Exact submitted model retained
Host-system evidence reviewed
Quantity linked to the identity record
FAQ
Q01
Which software branch belongs with C98043-A7001-L2?
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Siemens identifies the L2 CUD1 execution for SIMOREG product state A3 and software version 3.x.
Q02
Can C98043-A7001-L1 replace C98043-A7001-L2 without review?
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No. The L1 and L2 boards are assigned to different product states and software branches.
Q03
What converter records are essential for a C98043-A7001-L2 enquiry?
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Provide the complete SIMOREG MLFB, product state, r060 and r065 values, parameter archive, PMU type and clear board photographs.
Q04
Why do encoder connections matter when replacing C98043-A7001-L2?
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The CUD1 evaluates differential encoder tracks, so signal format, complementary inputs, grounding and parameterization must remain consistent.
Q05
How should a serviced C98043-A7001-L2 be accepted?
+
Confirm the restored parameter set, serial communications, I/O states, feedback values, encoder direction and the approved drive and machine-safety tests.
