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
Additional alarm at the fault
alarm output
Control loop error, the control valve does not react within the tol
-
erable times of the controlled variable (tolerance band alarm
Code 19).
• Actuator mechanically blocked.
• Attachment of the positioner subsequently shifted.
• Supply pressure not sufficient.
Status classification [Maintenance required]
Recommended action Check attachment.
58
Zero point Zero point incorrect.
Error may arise when the mounting position/linkage of the posi
-
tioner moves or when the valve seat trim is worn, especially with
soft-sealed plugs.
Status classification [Maintenance required]
Recommended action Check valve and mounting of the positioner. If OK, perform a
zero calibration over Code 6 (see section 7.6 on page 58).
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 mea-
suring lever.
We recommend re-initializing the postioner if the zero point de
-
viates by more than 5 %.
59
Autocorrection Should an error occur in the data range of the positioner, the
self-monitoring function recognizes it and automatically corrects
it.
Status classification [No message]
Recommended action Automatic
60
Fatal error An error was detected in the data relevant for safety,
autocorrection is not possible. This may be due to EMC
disturbances.
The positioner changes to the fail-safe position (SAFE).
Status classification Maintenance alarm (cannot be classified)
Recommended action Reset over Code 36.
Re-initialize the positioner (see sections 7.7 and 7.5).
78 EB 8387-3 EN
Code list
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