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  1. Products
  2. Condition monitoring
  3. Pulse evaluation
  4. Safe standstill monitoring

Safe standstill monitoring

  • For the safe detection of underspeed and standstill
  • Monitoring of two input channels with one separate output relay each
  • Clearly visible LEDs for indicating operation, error and switching status
  • Suitable for triggering a door guard locking system
  • Switch point selectable from four different values

Safe standstill monitoring


Safe standstill monitoring


The DA standstill monitor is a pulse evaluation system for safe detection of underspeed or standstill. It receives the pulses from the sensors connected on the inputs as pulse pick-ups and calculates the frequency. By continuously comparing the input frequency (actual value) and the switch point (preset value), the unit promptly detects underspeed or standstill.
For example, the standstill monitor can be used on a rotating machine part such as a drive, motor or shaft to determine whether it has been brought to a standstill due to a braking action. Any damage to persons or installations is reliably prevented.