A drive doesn’t need to be in the current catalog to be doing its job. ABB‘s ACS600 Multidrive platform, Eurotherm‘s 601 series, and Yaskawa/Omron’s V7 family are all long past their original production run, and all three are still common on plant floors — because a working drive on a working line is not a problem that needs solving.
Why replace-in-kind beats a forced upgrade
- A full retrofit to a current-generation drive usually means new wiring, new parameter setup, and re-validating the whole control loop — real downtime and engineering time for a line that wasn’t broken.
- A matched replacement module or drive keeps your existing programming, wiring, and operator familiarity intact. Swap it, load the parameters, done.
- For a single aging line inside an otherwise modern facility, a full platform upgrade rarely pencils out against the cost of stocking one or two spares.
What we’re seeing come through
Right now that includes ABB ACS600 32A Multidrive modules, 178A Multidrive modules for larger motors, an Eurotherm 601 series inverter, and a Yaskawa/Omron S12 series inverter — all pulled from decommissioned systems rather than failures, and all tested-pulled stock rather than scrap.
Planning ahead instead of reacting to a failure
The best time to source a spare for an obsolete drive is before the one on the line fails, not after the line is down. If you’re running any of these families, it’s worth checking what’s currently available and keeping at least one matched spare on the shelf — see our notes on matching the right ACS600 module to your motor if you’re not sure which rating you need.