Home / Work Samples / P-004
P-004 / RETROFIT / ELECTRICAL DESIGN

Control Cabinet
Retrofit & As-Built

A before-and-after hardware documentation example showing how a legacy control panel is revised, cross-checked and re-issued after defined engineering changes.

EPLAN revision controlVFD replacementPLC I/O additionsPanel GABOM delta
01 / ENGINEERING BOUNDARY

A controlled
sample scope.

A hypothetical brownfield modification derived from the future P-001 baseline. Changes to drives, sensors and field terminations are tracked by revision; no actual site walkdown or as-built verification is implied.

Demonstration assumptions
  • Starting point: controlled baseline drawings (Rev A) from P-001, once available.
  • Change request: replace two VFDs, add field instruments and extend PLC I/O allocation.
  • Update schematics, component references, terminals, cable schedule and enclosure arrangement.
  • Record every modification, open assumption and review comment; Rev B remains a demonstration, not site-verified as-built.

Technical references: IEC/EN 60204-1 for machine electrical equipment where applicable; IEC/EN 61439-1/-2 for applicable LV assemblies; IEC 81346 and IEC 61082 for structure and documentation; original client rules take precedence where contractually required.

02 / DOCUMENT REGISTER

Defined outputs.
Traceable revisions.

Planned example deliverables and formats. Status changes only once real files have been created and technically reviewed.

Document No.Engineering deliverableProposed formatStatus
P004-BS-001Controlled baseline & change requestPDF / XLSXPlanned
P004-EL-001Revised electrical schematics, redline comparisonEPLAN / PDFPlanned
P004-EL-002Updated panel GA / component locationsECAD / PDFPlanned
P004-EL-003Terminal and wiring changesEPLAN / PDFPlanned
P004-IC-001I/O list delta and allocation checkXLSX / CSVPlanned
P004-EL-004Updated BOM with added/replaced/removed itemsXLSXPlanned
P004-EL-005Cable and connection change scheduleXLSXPlanned
P004-QA-001Drawing and revision registerXLSXPlanned
P004-QA-002Interface, QC and open-point registerXLSX / PDFPlanned
P004-QA-003Issued-for-review transmittal templatePDFPlanned
RELATED SERVICES & EQUIPMENT

See corresponding scopes.

A real client engagement requires an agreed source-data pack, change boundaries and review responsibilities.