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Selection guide

Servo replacement: nameplate and information checklist

Collect the right motor, drive and machine information for a replacement enquiry. A practical checklist for engineers, maintenance and purchasing.

Engineering support · Product sourcing · Procurement

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  • Exact parts and engineer-checked alternatives
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  • Standard, modified and custom solutions

No obligation to buy. Have a datasheet, drawing or nameplate photo? Reply to your confirmation email to attach it.

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Specify Motion technical library · Updated · How we prepare our content · 2 sources

In short:Photograph the whole nameplate and preserve the full code. Then identify the associated motor, drive, feedback, controller and machine constraints.

Checklist

Start with photographs that show the full label, not just the brand and series. Keep every suffix, revision and option code visible. If the label is damaged, include several angles and explain which characters cannot be read confidently.

EquipmentUseful information
MotorComplete model, serial where relevant, winding, speed, feedback and brake
DriveFull model and option code, input supply, firmware and fitted modules
Gearbox or actuatorCode, ratio or lead, stroke, mounting arrangement and accessories
ControllerHardware, network and software version
MachineBuilder, function, fault history and required operating duty

Do not remove guards, open equipment or access live terminals merely to obtain an enquiry photograph. Ask the person responsible for the machine to collect information using its normal safe access procedures.

Preserve the configuration

A parameter backup, wiring diagram and existing bill of materials can clarify details that are absent from the label. Have the responsible engineer preserve these before equipment is removed or reset. Record which cable belongs to which connection and whether special adapters are fitted.

A fault message is useful context but is not proof that the named component has failed. Include when the problem occurs: power-up, enabling, acceleration, steady running or stopping. Note recent mechanical, software or wiring changes without assuming that they caused the fault.

Record the interfaces that must stay

A replacement motor may need the same flange and shaft, while a replacement drive may need to support the existing feedback and controller. Mark these as fixed requirements. If there is room to change the whole motor-drive package, explain the permitted redesign and downtime.

For mechanical parts, a sketch showing key mounting dimensions is often more useful than an isolated product photograph. For controlled axes, add speed, torque or force, travel, cycle rate and holding requirements where known.

Make the buying requirement explicit

State quantity, required date and whether only a new original part is acceptable. If another condition or a different manufacturer can be considered, ask for it to be identified explicitly. A supply offer should state condition, warranty, delivery assumptions and the exact configuration.

Use the obsolete replacement service or replacement form to start. Send the essential codes first and reply to the confirmation email with photographs, drawings or backups. This checklist supports a review; it is not a diagnosis or an assurance that a replacement is available.

Sources

  1. ADVANCED Motion Controls: third-party compatibility
  2. Motion Control Products: products and configurable motion packages

Figures are summarised from the sources above and from manufacturers' published data on the date shown. Always confirm against the current datasheet for your exact part.

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