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A practical buying guide

Regenerative drive unit: RFQ Checklist and Quotation Review

The key decision

A comparable regenerative drive unit quotation starts with regenerative drive unit application and required process result, regeneration profile and supply conditions, bus compatibility protection and controls. Record the required result, site interfaces and acceptance evidence in one revision-controlled RFQ. IndustryApex engineers use these inputs to define the equipment, integration and OEM/ODM scope for your project.

KEB COMBIVERT R6 regenerative drive unit reference equipment
KEB COMBIVERT R6 · Manufacturer reference image.
Shown as a configuration reference. Availability and the equipment offered for your project are confirmed separately.

This regenerative drive unit RFQ checklist is a working procurement document. Use it to turn the requirements in the Regenerative drive unit equipment guide into a written project brief and a comparable equipment offer.

What should a quotation for regenerative drive unit include?

Complete the product-specific requirements below. Keep buyer requirements, the proposed equipment response and unresolved points in separate columns. Attach the relevant drawings, samples or site records to the same RFQ revision.

Regenerative drive unit RFQ requirements and quotation evidence
Requirement to define How to make the response comparable
Regenerative drive unit application and required process result Record the actual requirement, its supporting document and any unresolved point. Request a written response against the same requirement revision.
Regeneration profile and supply conditions
Provide drive architecture, DC bus conditions, load cycle, peak and average regenerated energy and supply characteristics. The useful recovered energy depends on the actual operating cycle and the ability of the system to accept power flow.
Provide the actual site information and connection boundary. Identify what IndustryApex supplies and what the installation site must prepare.
Bus compatibility protection and controls
Compare supported drive connections, regenerative capacity, harmonic or power-quality behavior and fault handling. Shared DC bus arrangements and protective devices need a coordinated design rather than assuming every drive can be connected together.
Provide the actual site information and connection boundary. Identify what IndustryApex supplies and what the installation site must prepare.
Representative input variation and difficult production cases State the required result and the operating case behind it. Request confirmation for that case and record any exclusions or assumptions.
Required acceptance evidence
Verify the approved electrical architecture and measure energy flow over representative motoring and braking cycles. Demonstrate the defined supply-loss and fault responses through the qualified commissioning procedure.
Agree the sample or case, measurement method, record and decision owner. Ask which evidence is included in the quotation.
Site and utility scope
Provide appropriate protection, enclosure cooling, cabling and supply review. Coordinate the regenerative unit with the drive designer and facility electrical system, including any local requirements for the intended power flow.
Provide the actual site information and connection boundary. Identify what IndustryApex supplies and what the installation site must prepare.
Service provision
Monitor cooling, electrical connections, DC bus condition and protective functions. Preserve drive and regenerative settings and investigate changes in supply quality or braking behavior before modifying limits.
Provide the actual site information and connection boundary. Identify what IndustryApex supplies and what the installation site must prepare.
OEM/ODM engineering scope
OEM panel integration may be configured; ODM bus architectures require electrical studies and validation of fault behavior, including an agreed fallback for unavailable regeneration.
Attach the current revision and mark requested changes. Ask for the approved scope, engineering responsibility and change-control record.
Upstream preparation and downstream handling interfaces Record the actual requirement, its supporting document and any unresolved point. Request a written response against the same requirement revision.
Destination country and applicable installation requirements Record the actual requirement, its supporting document and any unresolved point. Request a written response against the same requirement revision.
Production schedule, changeover mix and operator availability State the required result and the operating case behind it. Request confirmation for that case and record any exclusions or assumptions.
Drawings, samples, inspection method and rejected-output criteria Agree the sample or case, measurement method, record and decision owner. Ask which evidence is included in the quotation.

How to compare regenerative drive unit quotations

Return the same completed checklist to our engineering team when reviewing a revised offer. For each requirement, record the proposed configuration, included evidence, price boundary and open question. A blank response is an unresolved item; request clarification before treating two offers as equivalent.

  • Regenerative drive unit application and required process result: identify the requirement revision, the proposed response and the document that supports it.
  • Regeneration profile and supply conditions: identify the requirement revision, the proposed response and the document that supports it.
  • Bus compatibility protection and controls: identify the requirement revision, the proposed response and the document that supports it.

Request separate scope lines for the main equipment, application-specific tooling or accessories, site connections, integration work, commissioning, training and support, where applicable. Record delivery terms, quotation validity and exclusions beside the quoted price. Keep optional items separate from items required for the stated result.

Regenerative drive unit acceptance criteria: what must be agreed?

Use the following equipment requirements to frame the acceptance discussion:

  • Required acceptance evidence: Verify the approved electrical architecture and measure energy flow over representative motoring and braking cycles. Demonstrate the defined supply-loss and fault responses through the qualified commissioning procedure.
  • Drawings, samples, inspection method and rejected-output criteria

Have the responsible engineering personnel agree the test case and method for the exact offered equipment. Record the input or sample identification, supplied configuration, observations or measurements, agreed decision criteria, open deviations and sign-off responsibility. Separate evidence available at the factory from checks that depend on the installed site. Retain the accepted records with the equipment and document later requirement changes.

OEM/ODM regenerative drive unit: define the change boundary

  • OEM/ODM engineering scope: OEM panel integration may be configured; ODM bus architectures require electrical studies and validation of fault behavior, including an agreed fallback for unavailable regeneration.

Distinguish approved standard options, branding and documentation from mechanical, electrical, control or process development. Send the intended application, current drawings, target market, quantities and requested changes. IndustryApex engineers review feasibility and define the proposed supply and engineering scope. Agree design ownership where relevant, the validation responsibility and the evidence that will accept the changed configuration. A reference photograph does not define the offered configuration or grant rights to relabel the pictured brand.

Build your regenerative drive unit project brief

Use the worksheet to record your inputs and open questions. You can download the brief or carry it into the project request. It is sent to IndustryApex only when you complete and submit that request form.

Complete your product-specific RFQ worksheet

You can edit the final requirements on the request form. No inquiry is submitted from this worksheet.

Use this brief in my project request ↗

Discuss the equipment scope with our engineers

Send the completed brief with the required result, destination and purchase timing. Our engineers can review the equipment configuration, application interfaces and requested customization, then identify the information still needed for a confirmed quotation.

Request a regenerative drive unit quotation ↗ · Discuss OEM requirements · Discuss ODM engineering

Related equipment scope: Programmable logic controller · Industrial gearbox · Variable frequency drive.

Define your equipment requirements

Review the Regenerative drive unit buying guide for the complete equipment scope.

Discuss this equipment project ↗ · OEM requirements · ODM requirements. Configuration and feasibility are reviewed for your application.

Frequently asked questions

What belongs in an RFQ for regenerative drive unit?

Start with regenerative drive unit application and required process result, regeneration profile and supply conditions, bus compatibility protection and controls. Complete the remaining product-specific requirements in the worksheet, and attach the relevant drawings, sample information and site records. State the destination, required result and purchase timing so our engineers can review a defined project.

How do I compare regenerative drive unit quotations on the same basis?

Use the same requirement revision for each comparison. Record the proposed configuration, included evidence, required accessories or integration, commissioning responsibilities, delivery terms and exclusions. Request a written response to unresolved requirements rather than comparing the main equipment price alone.

What belongs in the regenerative drive unit acceptance record?

Identify the approved input or sample, exact configuration, agreed method, observations or measurements, decision criteria, deviations and responsible sign-off. Agree with the responsible engineering personnel what can be checked at the factory and what depends on the installed site.

Can IndustryApex review OEM/ODM regenerative drive unit requirements?

Yes. Send the application, requested changes, drawings, target market, quantities and acceptance requirements. IndustryApex engineers review the proposed equipment and engineering scope. Feasibility, validation work, commercial terms and delivery are confirmed for the agreed project; the reference photograph does not establish branding rights.

Reference information

  • R6 Regenerative Drives: Energy-Saving Line Regen
  • Six Reasons to Replace Your Braking Resistor with a Regen Drive - KEB

Reference data and images explain equipment configurations. IndustryApex engineers confirm the offered model, specification and commercial scope in your project quotation.

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