Samson 3730-4, Mounting And Operating Instructions

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Error codes – Recommended action Condensed status alarm active, when prompted, Err appears.
76
No emergency mode The travel measuring system of the positioner has a
self-monitoring function (see Code 62).
A controlled emergency mode is not available on certain
actuators, such as double-acting actuators. For this reason, the
positioner moves to the fail-safe position when a measuring error
occurs. During the initialization, the positioner checks whether
the actuator has such a function or not.
Recommended action Merely information, confirm, if necessary.
No further action necessary.
77
Program loading error
Additional alarm at the fault
alarm contact
When the device starts operation for the first time after the PA
signal has been applied, it carries out a self-test (
tEStinG runs
across the display).
If the device loads a program that does not correspond to that of
the positioner, the valve moves to the fail-safe position. It is not
possible to make the valve leave this fail-safe position again by
operating the positioner.
Recommended action Interrupt fieldbus signal and restart positioner. Otherwise, return
the positioner to SAMSON AG for repair.
Extended diagnositics
78 Options parameter
Errors in options parameters
79
Diagnostic alarms Alarms are generated in the EXPERT
+
extended diagnostics if
EXPERT
+
has been successfully activated in Code 48.
80 Diagnostic parameters
Errors that are not critical for control.
Recommended action Confirm error.
Check and, if necessary, start new reference run.
81
Reference graphs Error on plotting the reference graphs of drive signal y
steady-state or drive signal y hysteresis.
• Reference run was interrupted
• Reference line y steady-state or y hysteresis was not adopted.
126
EB 8384-4 EN
Appendix