Motion control / holding brake

Siemens 6SE70 Brake Control Path

Maps drive brake-control logic to relay output, brake coil supply, release/close delays and mechanical brake condition for hoist and vertical-axis applications.

Functional path

Drive enable
Brake-control function block
Threshold / timing parameters
Digital or relay output
Brake coil supply
Mechanical holding brake
Load feedback

Diagnostic signals and checkpoints

Brake does not releaseBrake closes too earlyLoad slipsStart shockDrive trips during brake sequence

Technician notes

  • Brake timing should be recorded before tuning changes.
  • Mechanical wear and sticking must be evaluated before solving the problem in parameters.
  • Vertical load tests require approved safety procedure.