Malfunctions; Error Indication By Leds (Version With Positioner) - Samson 5857 Mounting And Operating Instructions

9 Malfunctions

Î Troubleshooting (see Table 9-1).
Note
Contact SAMSON's After-sales Service for malfunctions not listed in the table.
Table 9-1: Troubleshooting
Error
Actuator stem does not move.
Actuator stem does not move
through the whole range.
The actuator does not control the
valve position .
1)
Version with positioner only
1)

9.1 Error indication by LEDs (version with positioner)

Blinking pattern of the red LED
− Limit contact error
− Input signal failure detected
EB 5857 EN
Possible reasons
Actuator is blocked.
No or incorrect supply voltage
connected.
No or incorrect supply voltage
connected.
The actuator was not initialized
during start-up.
The mounting has been changed.
On
Off
On
Off
Malfunctions
Recommended action
Î Check attachment.
Î Remove the blockage.
Î Check the supply voltage
and connections.
Î Check the supply voltage
and connections.
Î Check the switch position
of the direction of action
switch.
Î Initializing the actuator
Time in s
Time in s
9-1