代码 201664: <location>SI CU: No automatic firmware update
问题描述与安全警告
Siemens SINUMERIK 840D CNC 触发了严重的 <location>SI CU: No automatic firmware update 警报。需要由合格的操作员或维修技师立即处理，以防止在制造周期中对设备造成二次损坏或导致零件报废。在接触电气控制箱之前，请务必确保遵循标准安全和停机挂牌 (LOTO) 程序。
官方故障排除步骤
Message value: %1 Drive object: SERVO, VECTOR Reaction: OFF2 Acknowledge: IMMEDIATELY (POWER ON) Cause: When booting, parameter p7826 "automatic firmware update" did not have the value "1" that is required for the automatic firmware upgrade/downgrade. This means that when the safety functions are enabled, an inadmissible combi nation of versions can occur. Note: This fault does not result in a safety stop response. See also: p7826 (Firmware update automatic) Remedy: For enabled drive-based SI monitoring: 1. Set parameter p7826 to the value 1 2. Save the parameter (p0977 = 1) and carry out a power-on reset When de-activating the drive-bas ed SI monitoring (p9601 = 0), the alarm can be acknowledged after exiting the safety commissioning mode.
Source: SINUMERIK 840D sl / 840Di sl / SINAMICS S120 Diagnostics Manual (DAsl, 03/2009)
Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.
关于 Siemens SINUMERIK 840D CNC 警报
由 Siemens 制造的工业控制器具有广泛的诊断系统，用于保护内部电路和机械连杆。当 SINUMERIK 840D CNC 出现类似 201664 的错误代码时，通常表示指令值与实际传感器反馈之间存在不匹配。
完整报警清单: 4014 Siemens SINUMERIK 840D CNC 代码s.
Have a better solution?
Help the industrial community by sharing your repair experience for code 201664.
Need a searchable reference for more Siemens SINUMERIK 840D CNC 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