Speed and direction monitor unit NV57H

Functional Description

The NV57H is used to monitor speed and direction of a movable part detected using sensor E57HDV

Application fields

  • Speed and direction monitoring of an elevator car during its manual movement or in normal operation in MRL systems
  • Measurement of speed and direction of a moving component

Main features

  • Power supply: 9-30Vdc
  • Inputs for E57HDV sensor
  • 3 Open collector transitor outputs for speed monitor
  • 1 Relay output for overspeed signaling
  • RS485 serial interface for continuous speed monitoring or configuration
  • Dip switch to set the maximum allowed speed