Contact-equipped sensors (single-channel)

A one-channel sensor is connected via the sensor supply F-SS0 or F-SS1. The sensor cycle available there makes it possible for crossfaults in the wiring to be detected. Note the detailed assignment of F-DI.. to the sensor supply F-SS0 or F-SS1 in the chapter Terminal assignment.

Settings in the "Assist CS.." parameterization tool:

  • Choose the one-channel connection type.
  • Depending on the requirement with respect to safety technology, activate or deactivate the "crossfault monitoring" and pulsed voltage supply of the sensor supply.

The following figure shows the MOVISAFE® CS..A safety option with one-channel sensors with contacts:

Operation with activated crossfault monitoring

The following errors are detected:

  • Crossfault between every digital input line F-DI.. and a 24 V supply voltage.
  • Crossfault between a digital input line F-DIx and another digital input line F-DIy, which is assigned to another sensor supply, if at least the associated switch contact of the other digital input F-DIy is closed.
  • Crossfault between a digital input line F-DI.. and a sensor supply line not assigned to the input F-DI..
  • Crossfault between a sensor supply line F-SS.. and a 24 V supply voltage if the digital input F-DI.. is assigned to the sensor supply and the switch contact belonging to F-DI.. is closed.
  • Crossfault between the sensor supply lines F-SS.. themselves if the switch contact belonging to the digital input F-DI.. is closed.

WARNING

The MOVISAFE® CS..A safety option cannot detect a short circuit between a sensor supply F-SS.. and an associated safe input F-DI..
Severe or fatal injuries.
  • Make sure that no short circuit between the sensor supply F-SS.. and an associated safe input F-DI.. is possible.

WARNING

If crossfault monitoring is deactivated, the MOVISAFE® CS..A safety option cannot detect crossfaults in the cabling. This configuration is not permitted for safe applications without further measures.
Severe or fatal injuries.
  • A one-channel sensor with crossfault monitoring can achieve a category 2 structure according to EN ISO 13849-1.