This manual provides instructions on how to upgrade from Altivar 78 drives to Altivar 61 or Altivar 71 drives.
This migration manual explains how to replace an Altivar 78 variable‑frequency drive with either an Altivar 61 (variable torque) or Altivar 71 (constant torque) drive. It helps you select the appropriate drive, choose power‑circuit options, and understand mounting accessories and I/O extensions.
The document also provides detailed wiring recommendations, mounting procedures, and safety warnings, and points to the Installation and Programming manuals for further configuration details.
It guides you through replacing an Altivar 78 drive with an Altivar 61 or Altivar 71 drive.