6
Installation
and Operation
EDBC250SIO | 2.0
206
Parameter "Test frequency input"
If used together with the module's test pulse outputs, test pulses cyclically check the input cir-
cuit connected to the Safety I/O-module for faults such as short circuits or internal defects. Pa-
rameter "Test pulse duration input" sets the switching frequency and, thus, the frequency of
test pulses allocated to a digital test pulse output.
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 en-
sure a sufficient degree of safety.