ROBA®-SBCplus: Safe brake control – applicable up to PLe and SIL CL3

ROBA®-SBCplus: Safe brake control – applicable up to PLe and SIL CL3

  • Applicable up to PLe and SIL CL3
  • Switches two brakes safely
  • Control part and power part separated
  • Overexcitation time configurable

The safe brake control ROBA®-SBCplus is used to control and monitor two ROBA-stop® safety brakes, especially in applications which have to fulfill requirements regarding personal protection according to the standards for functional reliability, for example, ISO 13849 and IEC 62061.

Maximum switching reliability

The brake control must safely interrupt the current in the magnetic coil when switching off the brake. The ROBA®-SBCplus module works with wear-free electronic semiconductors and thus achieves almost unlimited switching frequencies and switching reliability.

Safe inner configuration

Amongst other things, the internal diagnostics inspections for short circuits, earth short-circuits, and line breaks, as well as safe overexcitation for releasing the brake and switching to reduced holding voltage when the brake is opened are the components required for “fail-safe” inner configuration.

Numerous safety functions

Numerous safety functions permit comprehensive error diagnostics. The brake voltage is monitored. An excessively high voltage could dangerously extend the drop-out time on switch-off, if, for example, this were to cause a vertical axis to drop to an unpermittedly low level. The monitoring of the switching times, which influence the braking distance, is therefore another component of error diagnostics.

Safe switching condition monitoring

The signal evaluation of the release monitoring with plausibility check permits switching condition monitoring of the brake. The plausibility is controlled as follows: if voltage is applied, the brake must be opened after a defined time and vice versa. The switching condition monitoring can be used to reliably prevent the drive starting up against a closed brake. In this way, creeping errors such as gradually increasing wear, which affect the switching times, can be detected.

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Certifications

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pdf | 3,57 MB Language: en Date: 30.06.2021
Available languages
pdf | 382,29 KB Language: en Date: 18.03.2019
Available languages
pdf | 1,79 MB Language: en Date: 01.02.2023
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