6
Installation and Operation
EDBC250SIO | 2.0
72
WARNING
Non-detection of a corrupt external wiring when test pulse outputs are
disabled
Unsafe machine state, safety hazard
Always use the correct and enabled test pulse output to supply power to
contact-type sensors.
Note: Consider protecting the cables and/or laying them separately to
ensure a sufficient degree of safety.
6.3.4
Output Parameters
CAUTION
Consideration of the parametrization
For single-channel applications (inputs and outputs), the test pulse frequency
must be adapted to the application. It must be ensured that for applications in
which a frequent change of state occurs, the test pulse frequency is selected at
least 100 times greater than the state change time of the application.
See 6.3.2 FSoE Parameters.
Parameter "extGroundOutputs"
Enable if the sensor is not connected to module terminal SO X- but uses an external ground
connection. Pick from a drop-down list provided by the configurator software. Linking the
sensor to an external ground connection instead of terminal SO X- disallows you to control an
external 24 VDC power supply.
Also set this parameter if output SO X+ supplies an electronic load such as a digital input of an
Safety I/O-module.
Parameter "Used Outputs"
Enables the outputs you use (SO 0 and / or SO 1)
Pick from a drop-down list
Parameter "Test pulse duration output"
Test pulses cyclically check the digital outputs of the Safety I/O-module for faults such as short
circuits or internal defects. Parameter "Test pulse duration output" sets the time of a test
pulse allocated to a digital output. If you connect a capacitive load to the digital power output,
you may have to modify the test pulse duration.
NOTE
Test pulses to the outputs
Match the connected loads and the test pulse duration setting such that the test
pulses are prevented from switching the loads.
I
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