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3 articles
Most servo sizing errors are not arithmetic mistakes — they are shortcuts that survived the concept design. Here are five assumptions that regularly cause trouble on UK machine builds, what each one costs in practice, and the calculation or selection data that should replace it.
A Bosch drive retrofit is only as sound as the earthing and EMC infrastructure around it. This checklist covers supply arrangement checks, RCD selection, protective conductor sizing, shielded cable termination and the tests that prevent nuisance trips after commissioning.
Voltage unbalance is easy to measure badly and expensive to ignore. This field guide sets out a repeatable method for logging UK 400 V three-phase supplies, applying derating factors to Bosch induction and servo motors, and deciding when a larger frame is the engineering answer rather than another drive parameter.