Independent manufacturer reference

Schneider ElectricProduct families & fault codes

Schneider Electric provides industrial controllers and variable-speed drives. This reference covers Modicon M580, Modicon M262 and Altivar Machine ATV320, plus five detected-error codes verified in the ATV320 Programming Manual.

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Schneider Electric at a glance

Manufacturer
Schneider Electric
Relevant areas
Programmable automation controllers, logic/motion controllers and variable-speed drives
Selected families
Modicon M580, Modicon M262 and Altivar Machine ATV320
Main engineering and diagnostic environments
EcoStruxure Control Expert for M580; EcoStruxure Machine Expert and controller web pages for M262; drive HMI, SoMove/compatible tools and ATV320 documentation
Diagnostic model
M580/M262 expose controller, I/O, communication and application diagnostics; ATV320 also exposes short detected-error codes with manual-specific cause/remedy entries
Manufacturer website
Schneider Electric ↗

Selected Schneider Electric product families

Modicon M580

Role
Modicon M580 is Schneider Electric's Ethernet-enabled programmable automation controller family for process, high-availability and safety architectures.
Typical use
M580 systems are used in industrial control architectures with local or remote I/O, Ethernet communications and, depending on CPU and system design, redundant or safety functions.
Diagnostic identifiers
CPU/module LEDs, Control Expert diagnostic buffer and module diagnostics, system bits/words, application alarms
Important
CPU status, module channel errors, communication status, system words, function-block errors and application alarms are separate contexts.

Modicon M262

Role
Modicon M262 is Schneider Electric's logic/motion controller family for performance machines.
Typical use
M262 controllers coordinate machine logic, I/O, networks and—on suitable variants—motion axes.
Diagnostic identifiers
Controller LEDs, Machine Expert online/device diagnostics, web pages and PLC system structures
Important
M580 is engineered with Control Expert; M262 uses Machine Expert and different system structures, firmware and device models.

Altivar Machine ATV320

Role
Altivar Machine ATV320 is Schneider Electric's variable-speed drive for asynchronous and synchronous motors in machine applications.
Typical use
ATV320 drives are used in simple and advanced machine applications to regulate motor speed and torque.
Diagnostic identifiers
HMI code/label, error history, parameters, motor/drive data and operating state
Important
Interpret the complete diagnostic message using the exact device, installed configuration and current manufacturer documentation.

How to diagnose Schneider Electric devices

Use the complete diagnostic identifier together with the exact device, configuration and manufacturer documentation. The number or display label alone does not establish the cause.

  1. 01Identify the device

    What to check: Exact product, hardware variant, options and firmware.

    Why it matters: Diagnostic meanings depend on the installed configuration.

  2. 02Capture the identifier

    What to check: Complete code, full message, timestamp and operating state.

    Why it matters: A short code can omit the context needed to interpret an event.

  3. 03Identify the source

    What to check: Controller, module, drive, amplifier, application or connected system.

    Why it matters: Similar identifiers can come from different diagnostic systems.

  4. 04Read detailed diagnostics

    What to check: Device log, engineering software, display and event history.

    Why it matters: Detailed records identify the affected component and event sequence.

  5. 05Match the correct manual

    What to check: Documentation for the exact family, hardware and software version.

    Why it matters: This avoids using the meaning from a different product or release.

Modicon M580CPU/module LEDs, Control Expert diagnostic buffer and module diagnostics, system bits/words, application alarms
Modicon M262Controller LEDs, Machine Expert online/device diagnostics, web pages and PLC system structures
ATV320HMI code/label, error history, parameters, motor/drive data and operating state

ATV320 error codes

Direct meaning: The ATV320 detected an overcurrent condition.

OCF · Overcurrent

OCFOvercurrent

Documented meaning: The ATV320 detected an overcurrent condition.

Scope: ATV320, NVE41295.06

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SCF1 · Motor short circuit

SCF1Motor short circuit

Documented meaning: The ATV320 detected a short circuit or grounding condition at the drive output.

Scope: ATV320, NVE41295.06

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OLF · Motor Overload

OLFMotor Overload

Documented meaning: Motor overload was triggered by excessive motor current.

Scope: ATV320, NVE41295.06

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OSF · Supply Mains Overvoltage

OSFSupply Mains Overvoltage

Documented meaning: The ATV320 detected supply-mains overvoltage.

Scope: ATV320, NVE41295.06

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USF · Supply Mains UnderV

USFSupply Mains UnderV

Documented meaning: The ATV320 detected supply-mains undervoltage.

Scope: ATV320, NVE41295.06

Open the Schneider Electric source ↗

Schneider Electric-specific questions

What is the difference between Modicon M580 and M262?

M580 is an Ethernet PAC family for larger process, high-availability and safety architectures and is engineered with Control Expert. M262 is a logic/motion controller for performance machines and is engineered with Machine Expert.

Do M580 and M262 use the same fault codes?

No. Their engineering systems, hardware models, system structures and firmware differ. Always preserve the complete diagnostic message and exact controller reference.

What does ATV320 OCF mean?

OCF means Overcurrent. The manual lists parameter issues, high inertia/load and mechanical locking among probable causes, so captured context is needed before a remedy is chosen.

Can an ATV320 detected error be reset immediately?

Not safely by assumption. NVE41295 distinguishes different clearing behaviors, and a reset does not remove the cause or guarantee a safe restart. Preserve the event and follow the machine procedure.

Do these codes apply to ATV340 or ATV600 drives?

No automatic equivalence is claimed. The codes on this page are verified only for ATV320 against NVE41295.06.

Manufacturer sources