Application factor fA

For BE.. series brakes, the application factor f_A is used to define the application's ratio of braking torque to load torque, which is important for ensuring proper brake function:

The factor indicates the ratio of the nominal braking torque MB to the static load torque M_L in relation to the motor shaft.

By definition, the factor f_A always has values >1 and describes the following two limit states:

• The limit state required to reliably hold a static load at standstill.
• The limit state required to reliably bring a moving application with a defined dynamic load to a standstill.

The term "reliable" is to be understood in the statistical sense. The intended use of the brakes requires compliance with the required minimum factor f_A as well as all other conditions mentioned in the project planning regulations and the operating instructions.

Note: The application factor f_A is not a safety factor in the true sense. This definition would require the failure limit to be 1. In contrast, the factor f_A is to be seen as a binding dimensioning factor; in other words, functional failure can also begin to occur with values >1.

If the actual values fall below the specified minimum values for f_A, the characteristic safety values B_10D no longer apply to the use case.