Code F01614: Frequency consistency fault
Issue Description & Safety Warning
The Siemens SINAMICS G120 CU240S Drive has triggered a critical Frequency consistency 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
Reaction: OFF 2 (OFF 3) Acknowledge: Quit fault eg. via DI2 Cause: Error in frequency detection of the frequency estimation circuit (voltage frequency measurement (VFM) module): - r0949 = 100: Difference in frequency comparison on P1. - r0949 = 101: VFM estimated frequency too high on P1. - r0949 = 102: VFM estimated frequency too low on P1. - r0949 = 103: Estimated frequency of VFM module was not detected on P1. - r0949 = 104: Error in cycle-time on P1. - r0949 = 200: Frequency deviation on P2. - r0949 = 201: VFM estimated frequency too high on P2. - r0949 = 202: VFM estimated frequency too low on P2. - r0949 = 203: Estimated VFM frequency was not detected on P2. - r0949 = 204: Error in cycle-time on P2. Error can occur with small ramping times. When the VC or SLVC mode is configured (see p1300) the cause can be the same as for fault F0453. Remedy: - Increase ramping times p1120 and p1121. - Make sure that drive is not at current limit when starting. - See remedies for F0453. - Check hardware speed estimation circuit.
Source: SINAMICS G120 Control Units CU240S Faults and Alarms (Edition 05/2007)
Last reviewed: 2026-07-01 · Verified against the manufacturer’s official documentation.
About Siemens SINAMICS G120 CU240S Drive Alarms
Siemens controllers include extensive self-diagnostics that flag or halt the machine when a fault is detected. Error code F01614 on the SINAMICS G120 CU240S Drive 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: 108 Siemens SINAMICS G120 CU240S Drive codes.
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