a02b-0321-b500
FANUC 0i Mate-TD Controller A02B-0321-B500
A02B-0321-B500 is a FANUC 0i Mate-TD controller that the seller's shop lists as a used unit. This page records the listing, the Mate line it belongs to, and what a buyer of a used compact controller should confirm.
What A02B-0321-B500 is
A02B-0321-B500 is the control unit of a FANUC 0i Mate-TD — the compact control fitted to smaller lathes and machining centres. The seller's shop lists this exact number as a used CNC controller, which makes it the named unit of the 0i Mate page: the Mate line is published at family level, and this is the one Mate unit the shop calls out by number.
Mate units are their own line. An A02B-0321-B500 replaces a Mate control, not a full-size Series 0i control, and the distinction is the first thing this page exists to protect: the two lines share a name and a generation, and nothing else that matters to a swap.
Where A02B-0321-B500 sits in a Mate cabinet
The Mate control runs a compact cabinet: its boards, a display on the operator panel — often a combined unit at this size — I/O to the machine, and a small drive chain below. A Mate controller is usually ordered after a control-level failure on a machine that is otherwise sound, which is the economics of compact machines: the control is a large share of the machine's remaining value, and a tested used unit is the proportionate repair.
The Series 0i page shows where the Mate line branches from the main 0i line, and the A02B table lists this number among the controls rather than the displays — the position a buyer should double-check any A02B number against before ordering.
Condition of A02B-0321-B500: used, as listed
The listing's word is used, and this page keeps it. A used Mate-TD controller is an original FANUC unit that has already served in a machine; it is sold as used, tested before dispatch, and covered by the seller's warranty for used parts — 3 months, repair, replacement or refund as the seller's warranty terms state. Nothing on this page presents it as new or as new-surplus.
What a buyer of a used controller should confirm is set out on the used FANUC parts page: the stated condition, the pre-dispatch test, and the option of a test video showing the unit booted. For a controller, the boot screen is the single most informative artefact, and asking for it by name is a normal part of ordering this unit.
Testing A02B-0321-B500 before dispatch
A used controller earns its place on the shelf by passing the bench: powered up, booted to its ready state, and checked as a complete unit. The test bench page describes the diagnosis culture behind that check. A unit that boots intermittently is not a tested unit and does not get described as one; intermittent control faults are precisely what the bench process exists to catch.
The buyer's own failed Mate control can be assessed the same way through the repair service: if the fault is at board level inside the control, the repair is priced at that level, and the shelf unit on this page becomes the fallback rather than the first answer.
Ordering A02B-0321-B500
Quote A02B-0321-B500 in full and name the machine the Mate control serves — builder, model, and whether it is a lathe (the TD in the unit's description is the lathe-side form, which is why the machine type belongs in the message). If the inquiry is a replacement for a failed Mate, add the symptom: a control that never lights, one that boots and drops, and one that runs with a dead axis are three different conversations, and the first answer can cover the shelf unit and the bench assessment of the failed one together.
Related pages
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Send the part numbers you need, or the number of a unit you want assessed, with the machine each belongs to. One desk answers for the shelves and the bench.
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