Code 207016: <location>Drive: Motor temperature sensor fault
Issue Description & Safety Warning
The Siemens SINUMERIK 840D CNC has triggered a critical <location>Drive: Motor temperature sensor fault 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: SERVO, VECTOR Reaction: OFF1 (NONE, OFF2, OFF3, STOP1, STOP2) Acknowledge: IMMEDIATELY SINAMICS-Alarms Diagnostics Manual (DAsl), 03/2009 Cause: An error was detected when evaluating the temperature sensor set in p0600 and p0601. Possible causes: - wire breakage or sensor not connected (KTY: R > 1630 Ohm). - measured resistance too low (PTC: R < 20 Ohm, KTY: R < 50 Ohm). Note: If alarm A07015 is present, the time in p0607 is started. If the fault is still present after this time has expired, then fault F07016 is output; however, at the earliest, 1 s after alarm A07015. Fault value (r0949, interpret decimal): For SME selected (p0601 = 10), number of the sensor channel leading to the message. See also: p0607 (Temperature sensor fault timer) Remedy: - check that the sensor is connected correctly. - check the parameterization (p0600, p0601). - induction motors: De-activate temperature sensor fault (p0607 = 0). See also: r0035, p0600, p0601, p0607, p4600, p4601, p4602, p4603, r4620
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 207016 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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