Prepare Mitsubishi MR-J3 servo spares with absolute-position recovery evidence. Keep parameter backups, encoder state and machine home reference distinct.
Nov 12, 2026
Article Category
Procurement notes and technical articles grouped under Drives & Motion for industrial automation buyers.
Nov 12, 2026
Prepare Mitsubishi MR-J3 servo spares with absolute-position recovery evidence. Keep parameter backups, encoder state and machine home reference distinct.
Nov 11, 2026
Decode PowerFlex 525 current references using the manufacturer table. Compare full catalog codes, duty basis and supply scope before accepting a spare.
Nov 10, 2026
Assess Altivar 61 and 71 spare drives using site elevation, current demand and environmental limits. Avoid selecting high-altitude spares by kW alone.
Nov 9, 2026
Diagnose ATV61 pump sleep without guessing restart settings. Preserve PID feedback, wake-up criteria and spare identity before replacing hardware.
Oct 9, 2026
A field guide to separating DC bus, inverter board and feedback faults before sourcing Yaskawa or Fuji legacy drive spares.
Jul 23, 2026
A control board in an older FRENIC drive can fail while the motor, power stage, and mechanical load remain healthy. The board choice still depends on inverter family, firmware, feedback, keypad or network options, parameter memory, and the power section around it. A visually similar PCB is not enough evidence. DriveKNMS readers need board-level procurement…
Jul 22, 2026
A drive control board failure can be mistaken for a complete inverter failure. On an older Yaskawa system, the control board carries dependencies involving firmware, gate signals, current feedback, keypad or network communication, parameter memory, and the power section around it. A board with a similar connector can still create a second failure during commissioning….