BECKHOFF EK1914 - Manual (Page 36)

Operation
34 EK1914
4.3.3.1 Configuration of the EK1914 for light barriers, light grids, light curtains, etc.
The EK1914 also supports direct connection of contact-free protective devices with two self-testing
outputs such as light barriers, light grids, light curtains, laser scanners, etc.
CAUTION
Sensors with self-testing outputs
Only sensors with self-testing outputs and a maximum sensor self-test duration of
350 µs may be connected to the EK1914.
Parameter
To connect these sensors please set the following parameters for the EK1914 in the TwinCAT System
Manager:
•
Connect the two sensor signals to channels 1 and 2 and activate the entry asynchronous
repetition OSSD or any pulse repetition for both the inputs used under the parameter Logic for
channel 1 and 2. The difference between these settings is that with any pulse repetition
simultaneous tests of the OSSD signals up to 350 µs are allowed.
•
Switch the sensor test of the EK1914 to false for both the inputs used.
4.3.3.2 Configuration of the EK1914 for safety switching mats
The EK1914 also supports the direct connection of safety switching mats.
Parameter
To connect these safety mats please set the following parameters for the EK1914 in the TwinCAT System
Manager:
•
Connect the two sensor signals to channels 1 and 2 and activate the entry short cut channel x/y
is no module fault for both the inputs used under the parameter Logic for channel 1 and 2.
•
Switch the sensor test of the EK1914 to true for both the inputs used.