Fail Secure Wiring

• The fail secure mode of operation provides a high level of security to installations that require floor access
  to be secured in the case of any failure.

  This is not recommended for use in modern installations

• The floor control relays must be wired using the NO and C relay contacts

  This will only allow access to a floor if the relay is activated

• Deactivation of the relay or a complete power failure will prevent any access to the floor