PFP

Power failure, voltage drop, voltage fluctuation… have you ever had this problem?

PFP (power fail protection) protects workpiece, tool, spindle and machine thanks to the controlled stop of the shaft and spindle movements and the defined lift-off of the tool shaft.

Safety through a controlled process

The consequences of power failures can be very annoying and expensive, depending on the processing situation.

Possible consequences

  • Damage to the workpiece surface
  • Tool breakage
  • Spindle damage

Power Fail Protection PFP works during:

  • Power failure
  • Voltage drop
  • Voltage fluctuations
  • RMS fluctuations

The functional principle

Power Fail Protection PFP works during:

  • Power failure
  • Voltage drop
  • Voltage fluctuations
  • RMS fluctuations

The control detects failures by continuously monitoring the power quality. The system retains enough energy to stop all movements in a defined, safe procedure.

Shaft and spindle movements are stopped actively and the Z-axis is lifted off, if necessary. This ensures that workpieces and tools are not damaged. Once power has been restored correctly, the process can be restarted manually at the point of disruption.

Products and solutions