代碼 SRVO-281: SVOFF input(SVEMG abnormal)
問題描述與安全警告
Fanuc R-30i Series Robot Controller 觸發了嚴重的 SVOFF input(SVEMG abnormal) 警報。需要由合格的操作員或維修技師立即處理,以防止在製造週期中對設備造成二次損壞或導致零件報廢。在接觸電氣控制箱之前,請務必確保遵循標準安全和停機掛牌 (LOTO) 程序。
官方故障排除步驟
Cause: When the SVOFF signal was asserted, an SVEMG error was detected. The emergency stop circuit is faulty. Remedy: If the RDY LED (green) is lit: 1. Check the switch and cable connected to 9 (EGS1) - 10 (EGS11) and 11 (EGS2) - 12 (EGS21) on operator panel terminal TBOP4. 2. Replace the panel board. 3. Replace the EStop unit. 4. Replace the servo amplifier. 5. Replace the connection cable between the EStop unit and the panel board. If the RDY LED (green) is not lit: 1. Replace the cable connecting between the main board (JRS11) and the panel board (JRS11). 2. Replace the panel board. Note: Before executing the next step, perform a complete controller back-up to save all of your programs and settings. Failure to perform this task could result in damage to the equipment or lost data. 3. Replace the main board. Note: If the SYST-067 Panel HSSB disconnect alarm occurs simultaneously or the RDY LED is turned off, the following alarms are also generated: z SRVO-001 Operator panel E-Stop z SRVO-004 Fence open z SRVO-007 External emergency stop z SRVO-204 External (SVEMG abnormal) E-Stop z SRVO-280 SVOFF input Check the alarm history display on the teach pendant.
Source: FANUC Robot R-30iA Alarm Code List Operator's Manual
Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.
關於 Fanuc R-30i Series Robot Controller 警報
由 Fanuc 製造的工業控制器具有廣泛的診斷系統,用於保護內部電路和機械連桿。當 R-30i Series Robot Controller 出現類似 SRVO-281 的錯誤代碼時,通常表示指令值與實際感測器回饋之間存在不匹配。
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