CC SBH rot. speed too high %.2s

What does 7954 A840 mean?

The maximal permissible velocity of the standstill monitoring (SBH) was exceeded. This indicates that the axis moved faster than allowed when standstill monitoring should have been active.

• Maximal permissible velocity of the standstill monitoring was exceeded.

Click steps to track your progress.

1. 1

   Verify that the axis is indeed at standstill or below the SBH speed limit when standstill monitoring is active.

2. 2

   Inspect the drive and encoder feedback system for the affected axis to ensure accurate speed measurement and reliable control.

3. 3

   Check the SBH (Safe Controlled Stop or Standstill Monitoring) parameters in the NC control to ensure they are configured correctly and the speed limit is appropriate for the application.

4. 4

   Look for any external mechanical forces or disturbances that could cause unexpected movement or speed when standstill is expected.