Samson 3731-5, Mounting And Operating Instructions

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EB 8387-5 EN 95
Appendix
Operational errors
Error codes –
Recommended action
Condensed state message active, when prompted, Err appears.
When fault alarms exist, they are displayed here.
57 Control loop Control loop error, the valve no longer follows the controlled variable
within tolerable times (tolerance band alarm Code 19).
• Actuator is blocked.
• Positioner attachment has shifted subsequently.
• Insufficient supply pressure
Status classification [Maintenance required]
Recommended action • Check attachment.
58 Zero point Incorrect zero position. Error can occur when the positioner's attachment
position is shifted or when the valve trim is worn, particularly with soft-
sealed plugs.
Status classification [Maintenance required]
Recommended action Check valve and attachment of the positioner. If OK, perform a zero cali-
bration over Code 6 (see section 7.6).
If the lever position on the back of the positioner has been changed (e.g.
while exchanging the lever), move the lever as far as it will go in both
directions to adapt it to the internal measuring lever.
We recommend to re-initialize the positioner if zero deviates by more
than 5 %.
59 Auto-correction Errors in the positioner's data section are detected detected by automatic
monitoring and corrected automatically.
Status classification [No message]
Recommended action Automatic
60 Fatal error Error in safety-relevant data that cannot be corrected automatically. Possi-
ble cause: EMC disturbances.
The positioner goes to the fail-safe position (
SAFE ).
Status classification Maintenance alarm (cannot be classified)
Recommended action Reset over Code 36 . Re-initialize positioner (see sections 7.7 and 7.5).