Actuator; Functions/Actuator - Samson 5824 Mounting And Operating Instructions

Configuration and operation using TROVIS-VIEW

9.6 Actuator

9.6.1

Functions/actuator

Detect input signal failure
The positioner detects a failure of the input signal as soon as the value falls below the lower
range value by 0.3 V or 0.6 mA. An input signal failure is indicated in the Service folder
(Error) as well as by the red LED:
Note
The input signal failure can only be detected when at least 0.5 V or 1 mA is set as the lower
range value.
On
Off
2
If the input signal failure function is active, the reaction of the actuator upon failure of the in-
put signal is determined by the Positioning value upon input signal failure parameter.
− Positioning value upon input signal failure = Internal
The actuator stem moves to the position specified in the Internal positioning value param-
eter upon failure of the input signal.
− Positioning value upon input signal failure = Last position
The actuator stem remains in the last position that the valve moved to before failure of the
input signal.
The error message is reset and the actuator returns to closed-loop operation if the input sig-
nal moves within 0.2 V or 0.4 mA of the lower range value.
Input signal failure settings: Settings\Actuator\Functions
Functions
Detect input signal failure
Positioning value upon input signal failure
Internal positioning value
46
4 6 8 10
WE Adjustment range
No Yes/No
Internal Internal, last position
0.0 % 0.0 to 100.0 %
Time [s]
EB 5824-2 EN