Samson 5857 - Indicate Blockage; Blocking Protection

EB 5857 EN 16-5
Annex A (conguration instructions)
Settings\Actuator\Blockage
Function WE Adjustment range
Blockage removal No No, Yes
16.4.3 Indicate blockage
The positioner indicates a blockage when the Indicate blockage function is active (only when
the 'Blockage detection' is activated).
− 12Visissuedattheoutputasposition feedback signal.
Settings\Actuator\Blockage
Function WE Adjustment range
Indicate blockage No No, Yes
16.4.4 Blocking protection
The Blocking protectionpreventsthevalvefromseizingup.Iftheactuatorstemisinthe0%
position, it is extended slightly and then moved back to the closed position 24 hours after it
last moved.
Movement of the actuator stem caused by the activated blocking protection is indicated by
the yellow LED:
− Protecting against blockage
On
Off
Time in s
Settings\Actuator\Blockage
Function WE Adjustment range
Blocking protection No No, Yes