FIELD CURRENT SUPPLY · L1 HARDWARE IDENTITY · SERVICE ADJUSTMENT
Siemens C98043-A7004-L1 SIMOREG DC-MASTER Field Supply Board
A SIMOREG field-supply board whose L1 identity, host rating and post-replacement field-current offset adjustment must remain controlled.
Overview
C98043-A7004-L1 is Siemens field supply board A7004 in the L1 execution for the SIMOREG DC-MASTER platform. Siemens service guidance requires the replacement module number to match through the L number.
After an A7004 field module is replaced, Siemens specifies offset adjustment with P051 = 22 to set the zero point of the field-current actual-value sensing. All drive inputs, outputs and the electronics supply must be de-energized before module replacement.
Specifications
Features
Field-current supply role
Belongs to the converter field circuit rather than the armature-control signal path.
L1 execution traceability
The L number remains a mandatory comparison point during module exchange.
Documented offset procedure
A specific Siemens adjustment restores the field-current sensing zero point.
Drive-level safety boundary
Replacement begins only after every relevant supply and I/O path is de-energized.
Applications
SIMOREG field-circuit maintenance
Restoring the installed field-supply function in a documented DC drive.
Controlled board replacement
Matching the A7004-L1 identity before moving connectors or firing-circuit links.
Service acceptance
Completing the Siemens offset procedure and verifying stable field-current behavior.
Lifecycle
Prepare
Back up parameters, identify every connector and de-energize I/O plus electronics power.
Replace
Compare the old and new item numbers through L1 and transfer connections under the approved procedure.
Adjust
Run P051 = 22, then document field-current zero, response, alarms and converter operation.
FAQ
Q01
What evidence should accompany a C98043-A7004-L1 request?
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Provide the full module label, converter MLFB and serial number, field rating, connector photographs and parameter backup.
Q02
Can C98043-A7004-L2 replace C98043-A7004-L1 because the base number matches?
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No automatic substitution is established; Siemens requires the item number to match through the L number.
Q03
Which adjustment follows a C98043-A7004-L1 replacement?
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Siemens specifies P051 = 22 to adjust the zero point of field-current actual-value sensing.
Q04
What must be de-energized before removing C98043-A7004-L1?
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All drive inputs and outputs, including the electronics voltage supply, must be de-energized.
Q05
What proves C98043-A7004-L1 is ready for operation?
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Retain the L1 label match, completed offset adjustment, stable field current, clean diagnostics and successful drive tests.
About IndustryParts
https://www.industryparts.com/Exact identity before quotation
IndustryParts prepares C98043-A7004-L1 enquiries around the complete manufacturer label, requested quantity and destination. For controlled replacements, include the host-system record, field photographs and configuration evidence that apply to this exact execution.
Send the complete C98043-A7004-L1 label, requested quantity and destination.
