代碼 SEAL-021: Gun on/off too late: Sch %d
問題描述與安全警告
Fanuc R-30i Series Robot Controller 觸發了嚴重的 Gun on/off too late: Sch %d 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: In the Schedule number listed, the Gun On signal has been set up to turn on or off too long after the node the SS[] or SE is attached to. Currently, if this signal is set up to turn on or off greater than 100ms after the node, this warning will be posted and the signal will fore 100ms after the node. These are the formulas used to determine when the gun will be turned on or off relative to the node for seal schedule 'n': For SS[n]: Time_Before = EQUIPMENT_DELAY - GUNON_DELAY For SE: Time_Before = EQUIPMENT_DELAY - GUNOFF_DELAY Note that a NEGATIVE Time_Before means AFTER the node. Remedy: There is no real danger in this condition. You should be aware that if you try to turn the gun on or off after 100ms AFTER the node, the signal will always be fired 100ms after the node and this warning will be posted. To correct this problem, make the equipment_delay more positive or the gunon/gunoff delay more negative, to move the firing of the signal up earlier.
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 SEAL-021 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。
Have a better solution?
Help the industrial community by sharing your repair experience for code SEAL-021.
Need a searchable reference for more Fanuc R-30i Series Robot Controller manuals?
We structure equipment manuals into searchable code, title, cause, solution, safety note, and source-reference data. Send a PDF and example searched codes when you need public pages, private search, or structured exports.
Space reserved for Google AdSense / Industrial Affiliate Links
Monetization target for 2026