F37887 — HF Damping Module (CU): Component faulted

F37887 is raised when the drive detects a fault on the HF Damping Module — the DRIVE-CLiQ component involved. The message value tells you which component is affected and which fault cause the drive observed: the component number and the fault cause are coded together in the value that r0949 / r2124 display, and the decoding is given below.

• Fault detected on the DRIVE-CLiQ component (HF Damping Module) involved.
• Faulty hardware cannot be excluded.
• Which of the fault causes listed under the message value applies is shown in r0949 / r2124.

1. Check the DRIVE-CLiQ wiring (interrupted cable, contacts, …).
2. Check the electrical cabinet design and the cable routing for EMC compliance.
3. If required, use another DRIVE-CLiQ socket (p9904).
4. Replace the component involved.

• The message value contains the component number (%1) and the fault cause (%2).
• In r0949 / r2124 the information is coded as 0000yyxx hex: yy is the component number, xx is the error cause.
• Fault cause 32 (= 20 hex): error in the telegram header.
• Fault cause 35 (= 23 hex): receive error — the telegram buffer memory contains an error.
• Fault cause 66 (= 42 hex): send error — the telegram buffer memory contains an error.
• Fault cause 67 (= 43 hex): send error — the telegram buffer memory contains an error.
• Fault cause 96 (= 60 hex): response received too late during runtime measurement.
• Fault cause 97 (= 61 hex): time taken to exchange characteristic data too long.

• r0949 — fault value: read the coded message value of F37887 here (0000yyxx hex) to get the component number and the fault cause.
• r2124 — alarm value: the manual names it alongside r0949 for the same coding of this message value.
• p9904 — topology comparison acknowledge differences: use it to acknowledge the topology difference after the DRIVE-CLiQ cable has been moved to another socket as part of this remedy.