BECKHOFF EP1908 - Manual (Page 10)

Product description
8 EP1908-0002
3.2 Intended use
WARNING
Caution - Risk of injury!
The TwinSAFE EtherCAT Box may only be used for the purposes described below!
The TwinSAFE EtherCAT Box expands the application range of the Beckhoff system with functions that
enable it to be used for machine safety applications. The TwinSAFE Boxes are designed for machine
safety functions and directly associated industrial automation tasks. They are therefore only approved for
applications with a defined fail-safe state. This safe state is the wattless state. Fail-safety according to the
relevant standards is required.
The TwinSAFE EtherCAT Box allows the connection of:
•
24 V
DC
sensors such as
emergency stop push buttons, pull cord switches, position switches, two-hand switches, safety
mats, light curtains, light barriers, laser scanners etc.
•
initiators and encoders for speed measurement (frequency) with a signal voltage of 24 V
DC
WARNING
The fail-safe principle
The basic rule for a safety system such as TwinSAFE is that failure of a part, a system
component or the overall system must never lead to a dangerous condition. The safe
state is always the switched off and wattless state.
CAUTION
Follow the machinery directive
The TwinSAFE EtherCAT Box may only be used in machines that meet the
requirements of the Machinery Directive.
CAUTION
Ensure traceability
The buyer has to ensure the traceability of the device via the serial number.