Malfunctions; Emergency Action - Samson 3730-1 Mounting And Operating Instructions

9 Malfunctions

In case of a fault, the fault indication icon
appears at the bottom of the display.
past Code P0 or P21. The respective
Turn
error code E0 to E15 together with ERR ap-
pear on the display.
Refer to the error codes (section 11.3.1) for
the cause of the errors and the recommend-
ed action.
Example:
If, for instance, a travel has been entered in
Code P4 (nominal range) which is larger
than the maximum valve travel possible, the
initialization process would be interrupted
(E2 error code) because the rated travel
would not have been reached (E6 error
code). The valve moves to the fail-safe posi-
tion (S indicated on the display).
S
S
The nominal range (Code P4) must be
changed and the positioner re-initialized to
remedy this problem.
EB 8384-1 EN
Display of the fault
indication
S
Reset error codes
The E0 and E8 error codes can be reset as
follows:
1. Turn to select the error code.
2. Press , display: ESC
3. Turn until RST appears.
4. Press to reset the error.
The reset procedure can be canceled by
pressing when ESC appears.

9.1 Emergency action

Upon failure of the air supply or electric sig-
nal, the positioner vents the actuator, causing
the valve to move to the fail-safe position de-
termined by the actuator.
Tip
Emergency action in the event of valve or ac-
tuator failure is described in the associated
valve and actuator documentation.
Î The plant operator is responsible for
emergency action to be taken in the
plant.
Malfunctions
79