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Safety relays
Standstill Monitor

Standstill monitoring without additional sensors

Your Benefits

  • Quick mounting and installation thanks to the lack of additional wiring requirements
  • Simple commissioning with a screwdriver
  • Easy to retrofit as the subsequent mounting of sensors is not necessary

Overview

Standstill monitoring without additional sensors

The Standstill Monitor MOC3ZA is a safety device for machine drives and serves to protect against dangerous movements. It also measures the residual voltage meaning that no additional sensors are required for the purpose of standstill monitoring. This renders the device suitable for applications with three-phase, single-phase and direct current motors. For optimum integration into the work environment the Standstill Monitor MOC3ZA is available in three different versions – depending on the supply voltage.

The positively guided safety contacts enable the device to be connected to all of SICK's safe control solutions.

At a glance
  • Standstill monitoring by means of residual voltage measurement
  • 3 normally open and 1 normally closed positively guided safety contacts
  • 2 application diagnostic outputs for semiconductors
  • 1 application diagnostic output normally open
  • PL e (EN ISO 13849), SIL3 (IEC 61508), SILCL 3 (EN 62061)
  • Maximum motor supply voltage 690 V
  • Adjustable voltage threshold and standstill period

 

Applications

Technical overview

 
  • Technical data overview

    Technical data overview

    ApplicationsMotion Control
    Safety integrity level

    SIL3 (IEC 61508)

    SILCL3 (EN 62061)

    CategoryCategory 4 (EN ISO 13849)
    Performance levelPL e (EN ISO 13849)
    Configuration methodVia rotary switch
    Drive safety functionsStandstill
    Encoder interfaceMotor voltage measuring
    Housing width45 mm
All technical data can be found accompanying the individual product

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