Walk the parts crib in most San Antonio plants and you will find the same thing: a shelf of spare drives, some in original cartons, some pulled off machines years ago, and almost none of them with a tag saying when they were last powered up or whether they were ever tested. The shelf looks like insurance. Until the night it is needed, nobody knows whether it is.
IVS Incorporated repairs and fully tests industrial automation equipment so the units on your shelf are known-good, and so a failed drive, controller or motor can be restored rather than written off.
San Antonio's industrial base is unusually varied. Truck assembly on the south side and the supplier campus built around it drive a large share of the region's manufacturing employment. Food and beverage production is a long-standing presence, from bakery and snack operations to bottling and packaged goods, all running high-speed filling, wrapping and palletizing equipment. Aerospace maintenance, repair and overhaul work at the city's aviation complex handles engines and airframes on a rebuild-to-specification basis.
Alongside those sit medical device and bioscience manufacturing, plus a substantial building products sector — cement, aggregates and construction materials serving one of the fastest-growing corridors in the country. What these industries share is process equipment that is expected to run for decades and control hardware that stopped being manufactured long before the machinery wore out.
A spares program that actually functions starts with an honest list: which machines have no redundancy, which of those depend on a drive or controller with a long replacement lead time, and which of those models are no longer sold at all. That list is usually shorter than people expect and rarely matches the shelf they already have. Everything on it should be held as a tested unit, labeled with what it came from and what condition it was verified in.
Storage matters more than most maintenance groups realize. Electrolytic capacitors in a drive's DC bus degrade while sitting unpowered, and a unit that has been on a shelf for several years can fail on first energization even though it was perfect when it went into storage. Periodically energizing stored drives — bringing them up gradually so the capacitors reform rather than slamming full voltage across them — keeps the shelf viable. It is also why a repaired unit from a shop that runs full functional testing is worth more as a spare than an unopened box of unknown vintage: one has been proven under load, the other has only been promised.
For teams doing their own triage before deciding what to ship, see our guides to PLC troubleshooting and maintenance and how to test a servo motor.
Whether you have a unit down now or a shelf of untested spares you would rather verify, call 734-261-8801 or request a quote to get started.
IVS Incorporated — 750 Junction St, Plymouth, MI 48170 — 734-261-8801. Serving San Antonio and manufacturers nationwide.
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