FM Traceability Card · 控制板/固件死机复位

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Equipment VFD-101 FM control_board_firmware_crash ISO 14224 mode Control board firmware crash Control board firmware crash Source synthetic + standards-based engineering estimate (ISO 14224 / IEC 61800 / IEEE C57 框架归类)

控制板/固件死机复位

VFD-101 · Variable Frequency Drive (VFD)

Related equipment → VFD-101

0.82Source conf.

—Evidence conf.

Control board firmware crashISO 14224 mode

1Failure Mechanism

Function:执行 PWM 调制与保护逻辑

Failure cause:EMI/电源扰动/看门狗失效致 MCU 程序跑飞或复位

Damage mechanism：控制板 MCU 受电磁干扰或供电跌落导致程序跑飞/看门狗复位；固件逻辑缺陷触发异常

2Source Basis (where this FM comes from)

synthetic + standards-based engineering estimate (ISO 14224 / IEC 61800 / IEEE C57 框架归类)

Source confidence 0.82: this FM is derived from the ontology KB and cross-validated by synthetic + standards-based engineering estimate (ISO 14224 / IEC 61800 / IEEE C57 框架归类).

3Evidence Chain (supporting basis)

This FM has no offline curated evidence text; it is derived from the ontology KB and cross-validated by the listed standard clauses and related accident investigations.

Governing standards (evidence)：

std:IEC 61800-3 — Adjustable speed electrical power drive systems — EMC requirements · 机理级工程估计，非实测；引用 governing standard 作为分类出处
std:IEC 61800-5-1 — Adjustable speed electrical power drive systems — Safety requirements · 机理级工程估计，非实测；引用 governing standard 作为分类出处

4Related Real Accidents (traceable to accident cards)

NUREG-IN-94-51 NUREG-LER-2006-004-FERMI2

This FM is recorded in 2 real accident investigation(s); tap the report no. to open the corresponding accident lesson card.

5Applicable Standards & Clauses

IEC 61800-3IEC 61800-5-1

No separate clause reference.

6Derived Analysis (seeded from this FM)

7/3/4FMEA Sev/Occ/Det

0.06RBI λ

0.6Monitor pdet

12 月Insp. int.

Current tasks:控制板自诊断日志 | 固件版本管理/看门狗测试

RCFA incident:控制板/固件死机复位：EMI/电源扰动/看门狗失效致 MCU 程序跑飞或复位，后果类型 Operational/Safety，严重度 7

7RCM Maintenance Decision (strategy landing)

PMScheduled (Proactive) Maintenance

Recommended task标定/零点-跨度校验 + SIL Proof test + 阀门行程试验 + 变更管理

Suggested intervalHigh risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)

Decision basis机理类别=instrument

Governing standards

GB/T 21109IEC 61511ISA 84

⚠ This decision is engineering-inferred by RCM logic from the damage mechanism / root cause / failure cause — it is not derived from measured site history. Confirm with the equipment owner and process before execution.

⚠ 本卡技术正文（功能 / 致因 / 损伤机理 / RCFA 叙事）保留中文原文——依可信 AI 红线，自由技术文本不自动机翻、不编造英文译文。UI、设备类型、FM 名、ISO 码、标准号均为英文。

FM control_board_firmware_crash · Data from OPC KB and whitelisted public sources, compiled by Reliability AI for reliability demonstration only. Evidence ref codes are internal indices, not public DOIs.