Beckhoff TwinSAFE EL6900 - Page 20

Product description
EL690020 Version: 3.1.0
• 24 V
DC
sensors (EL1904) such as
emergency off pushbutton switches, pull cord switches, position switches, two-hand switches, safety
mats, light curtains, light barriers, laser scanner, etc.
• 24 V
DC
actuators (EL2904) such as
contactors, protection door switches with tumbler, signal lamps, servo drives, etc.
Test pulses
When selecting actuators please ensure that the EL2904 test pulses do not lead to actuator
switching or diagnostic message from the EL2904.
The following TwinSAFE components have been developed for these tasks:
• The EL1904 is an EtherCAT Terminal with 4 digital fail-safe inputs.
• The EL2904 is an EtherCAT Terminal with 4 digital fail-safe outputs.
• The EL6900 is an EtherCAT Terminal with integrated TwinSAFE logic.
These TwinSAFE components are suitable for operation on the
• Beckhoff EKxxxx series Bus Couplers
• Beckhoff CXxxxx series Embedded PCs with E-bus connection
WARNING
Power supply from SELV/PELV power supply unit!
The TwinSAFE components must be supplied with 24V
DC
by an SELV/PELV power supply unit with an
output voltage limit U
max
of 36V
DC
. Failure to observe this can result in a loss of safety.
CAUTION
Follow the machinery directive!
The TwinSAFE components shall only be used in machines as defined in the machinery directive.
CAUTION
Ensure traceability!
The buyer has to ensure the traceability of the device via the serial number.