Samson 5857, Mounting And Operating Instructions, Page: 45 / 80

EB 5857 EN 9-1
Malfunctions
9 Malfunctions
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Troubleshooting (see Table 9-1).
Contact SAMSON's After-sales Service for malfunctions not listed in the table.
Table 9-1: Troubleshooting
Error Possible reasons Recommended action
Actuator stem does not move. Actuator is blocked.
Î
Check attachment.
Î
Remove the blockage.
No or incorrect supply voltage
connected.
Î
Check the supply voltage
and connections.
Actuator stem does not move
through the whole range.
No or incorrect supply voltage
connected.
Î
Check the supply voltage
and connections.
The actuator does not control the
valve position 1) .
The actuator was not initialized
during start-up.
Î
Check the switch position
of the direction of action
switch.
Î
Initializing the actuator
The mounting has been changed.
1)
Version with positioner only
9.1 Error indication by LEDs (version with positioner)
Blinking pattern of the red LED
− Limit contact error
On
Off
Time in s
− Input signal failure detected
On
Off
Time in s
Note