F01659

Denial of parameter change

Siemens · SINAMICS G120 Variable Speed Drive

What does F01659 mean?

This fault occurs when the drive rejects a write request for one or more safety parameters, often due to problems finalizing parameters, an incorrect safety password, or an insufficient tolerance setting (p9691/p9891 too small). The drive may revert to previous settings, indicating an issue with security or parameter validation within the safety configuration.

Complete Troubleshooting Guide

  1. 1

    Acknowledge the fault and re-enter safety commissioning.

  2. 2

    Check and increase tolerance parameters p9691 or p9891 if they are smaller than p9690 or p9890 respectively.

  3. 3

    If re-entering safety commissioning is not possible, set p3900 = 11 to cancel commissioning and operate with previous safety settings.