Code 201697: <location>SI Motion: Motion monitoring functions must be tested
Issue Description & Safety Warning
The Siemens SINUMERIK 840D CNC has triggered a critical <location>SI Motion: Motion monitoring functions must be tested alarm. Immediate attention from a qualified operator or maintenance technician is required to prevent secondary damage to the equipment or spoiled parts during the manufacturing cycle. Always ensure standard safety and LOTO procedures are followed before accessing electrical cabinets.
Official Troubleshooting Steps
Message value: Drive object: SERVO, VECTOR Reaction: NONE Acknowledge: NONE Cause: The time set in p9559 for the forced checking procedur e of the safety motion monitoring functions has been exceeded. A new test is required. After next selecting the forced checking procedure parameterized in p9705, the message is withdrawn and the monitoring time is reset. Note: This message does not result in a safety stop response. See also: p9559 (SI Motion forced checking procedure timer (Control Unit)), p9705 (SI Motion: Test stop signal source) Remedy: Carry out the forced checking procedure of the safety motion monitoring functions. The signal source for initiati on is parameterized in BI: p9705. Note: SI: Safety Integrated See also: p9705 (SI Motion: Test stop signal source) SINAMICS-Alarms
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.
About Siemens SINUMERIK 840D CNC Alarms
Siemens controllers include extensive self-diagnostics that flag or halt the machine when a fault is detected. Error code 201697 on the SINUMERIK 840D CNC identifies one specific fault condition — its documented cause and the official corrective steps are listed above, sourced from Siemens's service documentation. Always confirm against the manual for your exact machine configuration and follow LOTO procedures before servicing.
Complete Alarm List: 4014 Siemens SINUMERIK 840D CNC codes.
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