Code 230650: <location>SI MM: Acceptance test required
Issue Description & Safety Warning
The Siemens SINUMERIK 840D CNC has triggered a critical <location>SI MM: Acceptance test required 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: %1 Drive object: All objects Reaction: OFF2 Acknowledge: IMMEDIATELY (POWER ON) Cause: The "Safety Integrated" function on the Motor Module requires an acceptance test. Note: This fault results in a STOP A that can be acknowledged. Fault value (r0949, interpret decimal): 130: Safety parameters for the Motor Module not available. 1000: Reference and actual checksum in t he Motor Module are not identical (booting). - at least one checksum-check ed piece of data is defective. 2000: Reference and actual checksum on the Moto r Module are not identical (commissioning mode). - reference checksum incorrectly entered in to the Motor Module (p9899 not equal to r9898). 2003: Acceptance test is required as a safety parameter has been changed. 2005: The safety logbook has identified that the sa fety checksums have changed. An acceptance test is required. 3003: Acceptance test is required as a hardw are-related safety parameter has been changed. 9999: Subsequent response of another safety-relat ed fault that occurred when booting that requires an acceptance test. Remedy: Re fault value = 130: - carry out safety commissioning routine. Re fault value = 1000: - again carry out safety commissioning routine. - replace the CompactFlash card. Re fault value = 2000: - check the safety parameters in the Motor Module and adapt the reference checksum (p9899). Re fault value = 2003, 2005: - Carry out an acceptance test and generate an acceptance report. The procedure when carrying out an acceptance test as well as an example of the acceptance report are provided in the following literature: SINAMICS S120 Function Manual Safety Integrated Re fault value = 3003: - carry out the function checks for the modi fied hardware and generate an acceptance report. The procedure when carrying out an acceptance test as well as an example of the acceptance report are provided in the following literature: SINAMICS S120 Function Manual Safety Integrated Re fault value = 9999: - carry out diagnostics for the other safety-related fault that is present. Note: MM: Motor Module SI: Safety Integrated See also: p9799 (SI reference checksum SI paramet ers (Control Unit)), p9899 (SI reference checksum SI parameters (Motor Module))
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 230650 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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