Ultimo aggiornamento: 7 ottobre 2026
Risposta rapida: Power supply output acceptance records should preserve four different evidence fields: the exact ordered component, its nominal marking, the approved evaluation criteria and the result actually observed. A legible voltage label supports identity, not a completed test. The WEHO EDR-120-24 example below illustrates this distinction in two disconnected industrial-control review arrangements; neither scene establishes an electrically matched load or a released installation.
Why one output-voltage field is not enough
An incoming-component form can look complete while hiding an important distinction. Procurement enters a voltage from the purchase line, receiving copies it from the enclosure, and a tester later enters an instrument reading. If all three entries occupy one field, another reviewer cannot reliably tell what was ordered, what the unit says and what was measured.
Power supply output acceptance records keep these meanings separate. They should identify the responsible evidence owner and the attributable source for every entry. Their purpose is not to manufacture an acceptance limit from a nominal voltage, turn a photograph into a certificate or infer compatibility from nearby equipment. Their purpose is to make the record understandable to a later engineering, procurement or quality reviewer.
The documentary example is the exact EDR-120-24 variant listed on WEHO’s current 120 W DIN-rail power supply product page. Its complete retained mechanical drawing and real component photographs provide identity and visual-construction evidence. Actual site input, equipment demand and powered test conditions were not established for the illustrations.
Capture the complete received identity
Retain the entire model suffix rather than recording only “EDR” or “24 V supply.” The photographed sample reads EDR-120-24, OUTPUT: 24 V DC, 5.0 A, and INPUT: 100–240 VAC, 2.6 A, 50/60 Hz. These are attributable sample markings. They are not a measurement made on a received delivery and not a guarantee of output performance under an unspecified input, temperature or load.
Preserve a real receiving photograph with the order reference and the supplier’s applicable document identifier. If an actual delivered unit carries a serial or other traceability identifier, capture what that unit actually shows. The reference front used here has no serial or barcode; an illustration must not add one to make an incomplete record appear complete.
If the purchase description and the received identity differ, retain both observations and request clarification. Do not silently change a receiving record to fit the expected purchase line. An approved substitution needs its own complete identity and engineering decision reference, not the preceding component’s measurement record.
Assign four fields to different evidence owners
Use the following distinction when developing power supply output acceptance records for an OEM workflow.
| Record di campo | Evidence to retain | Responsible confirmation |
|---|---|---|
| Ordered identity | Complete purchase-line variant, supplier document reference and received-unit identifier when present | Procurement and receiving |
| Nominal marking | Literal model, voltage and current markings with an attributable unit photograph | Receiving or quality |
| Approved criteria | Authorized procedure, applicable conditions, measurement location, method and acceptance limits | Responsible OEM engineer |
| Observed result | Actual reading, test time, instrument identity, configuration and disposition | Authorized tester and reviewer |
An unresolved field remains pending. A nominal marking does not fill in a missing engineering limit, and a desired equipment voltage is not an observed result. The responsible engineer must establish the applicable procedure before a reviewer can call a reading acceptable.
Keep the recorded evidence connected to its owner. Procurement may confirm that the complete variant matches the order, while engineering still needs to confirm the relevant document revision and criteria. Those are different decisions. An identity match can be documented without implying that a powered evaluation occurred.
Record conditions before interpreting an observation
A meaningful measurement needs a defined location, configuration and instrument. The authorized procedure should state which observation belongs to the component and which belongs to the complete equipment. A reading at one connection point is not automatically interchangeable with another location, and a component-level observation does not by itself release an OEM assembly.
This article supplies no invented mains condition, connected load or test current. The pictured seven contacts remain empty and the status indicator is not presented as an energized test result. The scenes are dry mechanical and documentary reviews. Actual mains work and powered evaluation require the responsible engineer’s procedure and appropriately authorized personnel.
The source has a voltage-adjustment control, but its presence does not authorize an arbitrary adjustment or establish an approved target. This article is about evidence ownership, not instructions for changing voltage. Keep the nominal value, any separately authorized criterion and an actual observed value in different fields.
Application example: a wheel-washing machine service cabinet
The first application illustration places the exact source-supported unit in an opened auxiliary-control service cabinet next to a stationary, dry wheel-washing machine brush-drum arrangement undergoing inspection. The product is on the left, viewed from a higher known front-left angle, with its blue identity face visible. The physical equipment arrangement identifies the review context; it is not a claim that this component can power a particular brush motor or host machine.
Its documentary question is whether the component identity can be traced to the purchase reference and an approved evaluation procedure. Receiving can retain the actual unit photograph, procurement can link the complete variant to the order, and engineering can identify the applicable criteria. Quality enters an observed output only after an authorized evaluation actually occurs.
Keeping those steps separate prevents a dry cabinet review from being reported as successful commissioning. The illustration shows mechanically supported placement and a reviewable scale reference; it does not establish electrical compatibility, operating clearances or a complete equipment release.
Application example: a sheet-metal punch service panel
The second illustration uses a different physical equipment arrangement: an opened auxiliary-control service panel associated with a sheet-metal turret-punch station. The surrounding turret and sheet-support features distinguish it from a washing drum. The product occupies the right of the panel and uses a lower, near-frontal known-left view rather than repeating the first product position and perspective.
The component is again disconnected. No punch-drive demand, operating input or powered output is invented. The purpose is to demonstrate that the same four-field evidence structure remains useful in a different machinery workflow, not to claim that every punching machine needs this exact model.
Separate a visual reference from an ordered fit release
The complete retained mechanical drawing documents 40 mm front width, 125.2 mm height and 113.5 mm rear-to-front depth. Those are the three construction axes used by the illustrations. The real photographs show the rear upper hook and spring-latch attachment engaging a horizontal rail. A rear-mounted component must not be pictured as hanging from its front face, floating in the cabinet or resting on a cable duct.
The application-scale anchor is the actual 35 mm rail profile on the same rear mounting plane. The source height divided by that profile is 125.2 ÷ 35, or approximately 3.577. Independent visual review compares actual rear-case boundaries and the visible rail’s complete outer profile, not a closer front label face against a more distant rail. This is an illustration-scale check, not certified dimensional measurement or an installation approval.
Retained documents and public-page statements do not establish one resolved order revision. The current page’s case/input-range text differs from the actual photographed metal construction and the retained specification versions. The real sample’s left lower-body opening also differs from the fastener symbol shown at that position in the drawing. These differences remain explicit rather than being reconciled through invented hardware or revision history.
For actual procurement, obtain the order-applicable controlled document and clarify any relevant discrepancy before approving fit, operation or release. The article uses only the shared nominal identity and three-axis construction evidence; it does not merge differing operating ranges, efficiency values, temperature limits or protection details into a universal claim.
The source-specific reconstruction retains the four upper contacts marked −V, −V, +V, +V; the three lower contacts marked earth, N, L; the adjustment and DC OK positions; the honeycomb ventilation; and the documented rear mounting structure. No fan, factory leads, extra controls or unknown opposite-side warning face is invented. A plausible generic DIN-rail supply would not be acceptable identity evidence.
Keep the disposition visible
Power supply output acceptance records should distinguish “identity reviewed,” “criteria pending,” “test recorded” and “released.” A photograph may support an identity review. It cannot supply a missing approved procedure or an unperformed test. The record map therefore leaves criteria and results pending rather than displaying fabricated values.
If a mismatch appears, preserve the original observation and its decision reference. Do not overwrite an unfavorable reading with a nominal value, or attach another unit’s identifier to complete a form. A candid pending state is more useful than an apparently complete record that cannot be traced to evidence.
Punti chiave
- Separate ordered identity, nominal markings, approved criteria and observed results.
- Retain the complete EDR-120-24 identity and the actual received unit’s attributable evidence.
- Treat 24 V / 5.0 A as the source sample’s nominal marking, not a performed test or unspecified-load guarantee.
- Keep missing identifiers, procedures, conditions and unmeasured results pending.
- Use retained geometry for visual reference while requesting controlled order evidence before fit or operation release.
Conclusione
Power supply output acceptance records are useful when they preserve what was ordered, what the unit says, what the OEM authorized and what was actually observed. The EDR-120-24 provides a concrete nominal-identity example, while two different dry machinery-review arrangements avoid inventing electrical compatibility. Contatta WEHO with the full model and document reference when a marking or revision difference needs clarification.
Domande frequenti
What should power supply output acceptance records contain?
Keep the complete ordered identity, literal nominal markings, engineering-approved evaluation criteria and the result actually observed in four separate fields. Retain attributable source references and leave unresolved fields pending.
Does the EDR-120-24 nameplate prove a measured 24 V output?
No. The real reference sample marks 24 V DC / 5.0 A. That identifies a nominal variant; it is not an instrument reading from a particular received unit or proof of equipment performance.
Does a pictured adjustment control authorize a different acceptance target?
No. The documented control is not an authorization to change a setting. The responsible engineer must approve the applicable criteria and procedure separately from the nominal marking and an actual measured result.
Do the machinery illustrations establish electrical compatibility?
No. The seven contacts remain disconnected. The wheel-washing and sheet-metal punch arrangements illustrate documentary and mechanical review, not connected load selection, mains testing or equipment release.
How are dimensions and document differences treated?
The retained complete mechanical drawing provides 40 mm width, 125.2 mm height and 113.5 mm depth for illustration geometry. The 35 mm rear rail is a same-plane visual scale anchor. Public and retained document discrepancies remain explicit; request the controlled order-applicable revision before actual fit, operation or release approval.
