Pepperl+Fuchs KFD2-HLC-Ex1.D Series Manual page 50

HART Loop Converter KFD2-HLC-Ex1.D(.**)
Configuration
Response delay has the following effects:
•
EN
•
•
The following illustration shows an example of switching characteristics with response delay
Switching direction max, mode active, with delay:
Figure 4.3
48 - EN
When the value of the trip point is out of range (exceeded or not reached) for a period
of time longer than the delay time, the relay switches.
When the value of the trip point ± hysteresis is in range (not reached or exceeded) for a
period of time longer than the delay time, the relay switches back.
Shorter overranges/underranges do not have an effect.
Value
Max
Max – hysteresis
energized
de-energized
Delay Delay
Time