Applications / Production and field
EVSE End-of-Line Testing for Production
Test each charging station before it leaves production. Run a defined sequence, record the result against its serial number and identify units that need rework.
Our Easy Chester EOL and Easy Chester EOL HPC test systems bring this repeatable testing workflow to your production line.
The production outcome
A production test must end in a controlled decision.
Engineering defines the approved acceptance requirements. Production applies them consistently to the identified charger and records the result.
Release
All mandatory checks were executed with the released profile and the unit met the approved acceptance criteria.
Rework
A known and repairable deviation is assigned to a defined rework route before the same relevant checks are repeated.
Reject
The unit cannot be released because a mandatory criterion failed or the required test boundary could not be established.
Engineering review
An unexpected pattern, test-system condition or new product behaviour requires controlled analysis outside the standard line flow.
Factory acceptance scope
Define what every manufactured EVSE must prove before selecting the tester.
The production plan should separate mandatory series checks from type testing, development investigations and adjacent quality processes. The exact scope follows the charger family, market, interface and released acceptance plan.
Serial number, production order, variant, options, firmware and other approved identity fields.
Connector and locking checks, Control Pilot (CP), Proximity Pilot (PP), PLC and CAN interfaces, and auxiliary signals.
Released charging protocol, expected sequence, configurable parameters, timing and selected negative reactions.
Selected charger-side protective behaviour, interlocks, isolation or residual-voltage checks where included in the production contract.
Connection states, enable conditions, contactor sequence, voltage and current response, start and controlled termination.
Defined source or load points, duration, ramps and limits sized to the production decision rather than a headline power value.
Reference comparison at defined operating points when production also owns a metrology-oriented verification step.
Barcode, PLC, MES, QMS, database, report, operator guidance, rework routing and approved interfaces.
Controlled production cycle
One approved profile. One controlled cycle. One attributable decision.
The released profile gives production the approved test sequence, parameters and evaluation rules.
- 1Identify the unit
Read or enter the serial number, charger variant, firmware, order and other required production context.
- 2Load the released profile
Select the approved test sequence and parameter set for the identified product configuration.
- 3Establish the protected test boundary
Confirm connections, interlocks, external equipment and safe initial conditions before power is enabled.
- 4Execute the charging checks
Run the released communication, function, parameter, safety-reaction and optional power or metrology steps.
- 5Evaluate automatically
Apply the approved result logic, preserve measured values and make every deviation visible.
- 6Release, rework, reject or escalate
Store the decision and evidence against the unit, then route the charger through the controlled production process.
Unit-level traceability
A verdict is useful only when it belongs to the charger that was tested.
Keep a record of what was tested, the approved profile and the test conditions. It must explain why the unit was released or sent to another step in the production process.
Factory architecture
Fit charging-specific test logic into the line, not beside it.
Before integration, agree who is responsible for product identification, the EVSE (electric vehicle supply equipment, or charging station), external power and measurement equipment, and factory results. Also define automation and who is responsible for the data.
Define and maintain the released test requirements
Approve profiles, limits, configuration changes and diagnostic escalation.
Execute the controlled sequence
Own acceptance and retention
Define release evidence, audit needs, rework rules and record retention.
Connect systems without hiding responsibility
Integrate barcode, PLC, MES, QMS, databases and approved data interfaces.
System path
Match the system to your production task.
Choose the system for your acceptance plan. Product pages cover hardware, ratings, interfaces, options and released functions.
For repeatable EVSE function, communication and parameter checks with unit-level traceability in production.
Explore Easy Chester EOLFor DC fast-charger production with defined power operating points and a coordinated high-power test cell.
Explore Easy Chester EOL HPCAdd real energy transfer, a suitable AC or DC reference meter and a controlled metrology workflow to the same unit record.
Open applicationChoose this route when production or transfer requires an open engineering environment, extensive fault simulation, power integration or deeper protocol analysis.
Explore EVCA FlexCoordinate supported test equipment, customer-owned devices, automated sequences, evaluation, reporting and data handover.
Open softwareSeparate factory acceptance, high-power production, field service and mobile calibration before selecting the product variant.
Compare systemsConfiguration inputs
Define the product, cycle, integration and evidence before requesting a system.
Complete EVSE or module, connector families, charging technologies, market versions, options and firmware.
Mandatory communication, function, parameters, safety reactions, power points and pass/fail rules.
Target takt time, repetitions, stabilization, peak and continuous duty, shift model and maintenance window.
Independent voltage, current, power, duration, regeneration, cooling, switching and facility constraints.
Operator guidance, remote control, line PLC, robotics, barcode, sequence ownership and safe-state handling.
MES, QMS, database, file exchange, APIs, result acknowledgement and offline behaviour.
Required fields, raw data, step results, reports, signatures, audit trail, storage location and retention period.
Reference meter, range, uncertainty, traceability, procedure, operating points and responsible legal or quality process.
Published implementation examples
Standardized execution can still integrate customer-specific equipment.
Customer-owned power electronics inside one EOL workflow
A customer combined Easy Chester EOL with internally developed power electronics for a specific production setup. Standard Easy Chester operation is designed to work without a laptop; production interfaces are specified separately.
Read the customer projectConsistent evidence from AC development to production
A portable EVCA Flex unit supported development while a smaller rack system served the production site. Shared test and measurement data helped maintain consistency between the engineering and factory environments.
Read the system storyFrequently asked questions
EVSE end-of-line testing
What is EVSE end-of-line testing?
EVSE end-of-line testing verifies a completed charging station or a defined production module against released factory acceptance criteria before it is released. The test keeps unit identity, approved configuration, executed checks, measured evidence and the final decision connected.
How does end-of-line testing differ from development validation?
Development validation explores behaviour, limits, robustness and faults while the product is still changing. End-of-line testing applies a released and controlled acceptance plan repeatedly to manufactured units. It is optimized for consistency, cycle time, traceability and production decisions.
What should be checked on every manufactured charging station?
The exact scope is product-specific. Typical checks can include unit identity, charging-interface behaviour, low-level signals, high-level communication, functional charging, selected electrical-safety reactions, configured parameters and production evidence. Mechanical, visual and regulatory checks remain separate unless explicitly integrated.
How is the test result linked to the charger serial number?
The production workflow reads or receives the approved unit identity, loads the matching released profile and stores the test configuration, measurements, step verdicts and overall result against that identity. The concrete barcode, database, MES or QMS interface is project-specific.
Can one test station handle several EVSE variants?
Yes, when the hardware boundary supports the required interfaces and each product variant has a released test profile. Variant selection should be driven by controlled production identity or an approved operator workflow, not by manually rebuilding the test sequence for each unit.
Can customer-owned power electronics or factory equipment be integrated?
Yes, within a defined integration scope. comframe and released interfaces can coordinate supported external sources, loads, meters, line controllers and databases. The May 2025 customer project integrated customer-owned power electronics through the Generic Source API.
Production test planning
Define the release process for each charging station.
Agree the unit identity, approved test profile, cycle time, acceptance criteria and rework path. Translate the production process into the required EOL configuration and line interfaces.