Production sticks should not ship on trust alone. First article inspection for industrial joysticks closes the gap between configurator PDF and batch reality — axis calibration, handle force, safety-switch continuity, and seal checks before recurring production releases. Trunsin ties FAI records to build codes on every industrial joystick program from ZS30 analog to AT11 CANopen builds.
This article is the quality and procurement checklist for joystick acceptance testing at OEM and retrofit buyers. It complements B2B procurement — here the focus is measurable acceptance gates, not RFQ packaging alone.
Align FAI scope with configurator releases and store signed reports with machine serial. ISO first-article practice treats the initial unit as representative of production intent [Source: ISO 9001 first-article inspection concepts].
What first article inspection covers on an industrial joystick
Core measurements:
- Dimensional — mount pattern, grip clearance, cable exit vs drawing
- Handle force — neutral and full throw per axis
- Axis centering and linearity — analog endpoints or TPDO neutral zone
- Safety switches — deadman and rocker continuity vs interlock diagram
- IP spot-check — gasket and boot routing in closed-service state [Source: IEC 60529]
Bus builds add heartbeat, EMCY, and PDO length checks — CANopen diagnostics.
FAI checklist table for industrial joystick buyers
| Test | Acceptance target | Evidence |
|---|---|---|
| Configuration match | PDF build code equals traveler | Signed release |
| Pinout continuity | 100% vs harness drawing | Wire map |
| Handle force | Within catalog band | Force gauge log |
| CANopen bench | Heartbeat + TPDO length | Master tool screenshot |
| Seal inspection | No leak paths at boot/base | Photo set |
Harness documentation pairs with wiring harness specification.
Who attends FAI: supplier, OEM, and harness shop
OEM quality should witness or review supplier FAI when sticks are safety-interlocked. Harness shops need pinout sign-off before batch crimp — not after cab smoke test.
Mining and crane programs with friction-hold axes add functional inching tests — multi-axis crane control and mining cabin spec.
Batch release gates after FAI sign-off
Contract language should block batch shipment without:
- Signed FAI report archived with machine serial
- Nonconformance closure on any failed item
- Identical traveler for production units
- Spare parts build code matching FAI unit
Lifecycle teams link FAI to spares — spare parts lifecycle.
Nonconformance handling and rework boundaries
When first article fails handle force or continuity, stop batch release — adjust gate shims or grip assemblies at supplier under documented rework, then re-run full FAI rather than spot-checking only failed items. Partial retests miss interactions between axes on multi-axis sticks.
Customer witness FAI on crane and mining programs should use the same instruments supplier quality uses — mismatched gauges create false passes. Digital photos of seal routing belong in the FAI packet for later forensic comparison if ingress complaints appear in season two.
How we validate first article inspection programs
- Configuration freeze — no production start without signed PDF
- Instrumented force and electrical logs — stored on traveler
- Independent quality review — second sign-off on safety-interlocked builds
- Bus verification script — automated PDO/heartbeat check when applicable
- Customer witness option — available on request for crane and mining programs
Digital calipers and force gauges used during FAI should carry calibration stickers traceable to national standards — customer quality teams increasingly reject ad hoc instruments during witness inspections. Store raw measurement files, not only pass/fail summaries, for later dispute resolution.
Frequently asked questions
Is FAI required on single-stick aftermarket orders?
Recommended when output or safety interlocks are critical — at minimum request continuity and force log with shipment.
Can FAI happen in the field?
Bench FAI at supplier is standard; field functional test adds cab-specific reach review — not a substitute for dimensional FAI.
What if FAI fails handle force?
Nonconformance — adjust gate or reject batch; do not ship out-of-spec sticks to “try in cab.”
How does FAI relate to configurator PDF?
PDF is the contract — FAI proves the unit matches it; regenerate PDF before FAI if engineering changes options.
Supplier and customer alignment meetings
Hold a short FAI scope review before production starts — agree instruments, sample size, and witness rules. Surprises at first article delivery delay programs more than one week of upfront meeting time saves.
Integrators performing line build should slot FAI stick approval before serial production ramp — retrofitting FAI after fifty cabs are built is costlier than one week delay at line zero. Treat stick FAI as gating item on master project schedules beside ECU software baseline approval.
Photo-rich FAI packets help remote witness reviews — suppliers should expect customers to request high-resolution seal routing images even when travel to witness is impractical.
Related resources
- Industrial joystick hub
- B2B procurement guide
- Wiring harness specification
- CANopen diagnostics
- Spare parts lifecycle
- Mining cabin specification
- Crane spec checklist
- Configurator workflow
- Online configurator
Require FAI on your next industrial joystick PO
- Attach configurator PDF and harness drawing to purchase order
- Specify FAI measurements from checklist above
- Archive signed report before batch release