Fault at DRIVE-CLiQ socket X103
Siemens · SINAMICS S120/S150 Reference List
What does F40003 mean?
A general fault has been detected at the drive object connected to the DRIVE-CLiQ socket X103. The fault value (r0949) provides information about the specific underlying fault that first occurred for this drive object. This fault requires immediate acknowledgment.
Common Causes
- Damaged or improperly shielded DRIVE-CLiQ cable between the drive and the component connected to socket X103, leading to data corruption or signal loss.
- Loose or corroded contact pins within the DRIVE-CLiQ connector at socket X103, preventing reliable communication.
- The connected DRIVE-CLiQ component (e.g., motor module, sensor module, motor with integrated encoder) at X103 is faulty or has incompatible firmware.
- Insufficient or intermittent 24VDC supply to the connected DRIVE-CLiQ component, causing communication errors or device malfunction.
- Incorrect DRIVE-CLiQ parameterization (e.g., p0940 (Component type), p0941 (Topology ID)) for the device connected to X103, preventing proper initialization.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Power down the drive, then visually inspect the entire length of the DRIVE-CLiQ cable connected to socket X103 for physical damage, sharp bends, or cuts. Verify cable shielding is intact and properly grounded at both ends.
- 2
Power down the drive, then firmly reseat the DRIVE-CLiQ connector at socket X103 on the drive and at the connected component's port. Ensure the latching mechanism is fully engaged.
- 3
Measure the 24VDC supply voltage at the power terminals of the component connected via X103 (if applicable) while the system is powered on, ensuring it remains within +/-10% of 24VDC.
- 4
Check drive parameters r0940 (Component type) and r0941 (Topology ID) for the component at X103 and compare them with the actual component type and expected topology. Reconfigure p0940 if incorrect.
- 5
If the fault persists, replace the DRIVE-CLiQ cable connected to X103 with a known good, identical length cable to rule out cable failure.
- 6
If the fault still persists after verifying cable and power, temporarily replace the DRIVE-CLiQ component connected to X103 with a known good, compatible unit to isolate a component hardware fault.