Identify the function as well as the code
A Lenze axis may perform a simple speed function or be part of a coordinated machine. The replacement discussion needs the drive code, motor and feedback details, controller and software environment. Record any application functions held in the drive so they are not overlooked when comparing hardware.
Our catalogue includes i950 and i700 cabinet servo ranges and m850 motors. Those names identify product families, not interchangeable configurations. Capture the complete installed options and preserve a parameter backup where the responsible machine engineer can do so safely.
Decide what must remain unchanged
| Fixed item | Effect on the shortlist |
|---|---|
| Existing motor | Feedback, winding and commutation must suit a proposed drive |
| Existing controller | Network implementation and required motion functions need checking |
| Existing mechanics | Flange, shaft, adapter, inertia and load duty remain constraints |
| Existing software | Parameter migration, programming and commissioning effort matter |
An axis that only needs speed control should not be specified as though it necessarily needs coordinated positioning. Conversely, a drive that accepts the network may still lack an application function used by the machine.
Allow for integration and operating duty
Include braking and holding arrangements, supply voltage, cabinet space and cooling. State the actual move or load cycle if another motor-drive combination is acceptable. Continuous torque and peak duration should be checked at the relevant speeds rather than inferred from a kW label.
For repeat machines, ask whether the objective is an urgent spare, a current design revision or long-term standardisation. These objectives can justify different trade-offs between original sourcing, component cost and redesign effort. Exact supply condition and warranty terms should be confirmed for any sourcing offer.
Send a useful Lenze replacement enquiry
Provide nameplate photographs, full codes, quantities, deadline and which machine interfaces must remain. We can investigate original-part sourcing or discuss supply-network packages, with Motion Control Products options where suitable. The complete-axis service explains how to compare the scope of a wider package. A published-figure comparison is a starting point for engineering review, not an approved Lenze cross-reference.
Lenze replacement and alternative options from our supply network
Each row compares the highest published figures for the series. A match here is a starting point: an engineer confirms the fit for your load, duty, mounting and interface before recommending anything.
| Lenze series | Type | Option for engineering review |
|---|---|---|
| c550 controller | Motion controller | Kinco AK (AK8 / AK840) Same product type; engineering check required Check this option and request pricing → |
| g7x0-P planetary gearboxes | Planetary gearbox | APEX Dynamics AB / ABR Same product type; engineering check required Check this option and request pricing → |
| i700 cabinet servo inverter | Multi-axis servo drive | ADVANCED Motion Controls DigiFlex Performance Servo Drives (DP, DZ, DV) meets or exceeds the figures compared Limited published data; check exact variant Check this option and request pricing → |
| i950 cabinet servo inverter | AC servo drive | Ask an engineer |
| m850 synchronous servo motors | AC servo motor | Ask an engineer |
| MCS synchronous servo motors | AC servo motor | Ask an engineer |
Specify Motion is not affiliated with Lenze SE. Brand and series names are used only to identify products. Comparisons use published figures; always confirm against the current datasheet.
Frequently asked questions
Can you source the original Lenze part?
Send the full model code, quantity and required date. We can investigate the sourcing route and confirm availability, supply condition and terms for the exact item.
Is a listed alternative a guaranteed equivalent?
No. Published series figures identify candidates for review. Exact model, installation, feedback, controller, firmware and mechanical fit must be checked before recommending a replacement.
Sources
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.