ID Message NAM
UR
1)
Possible cause Notes/remedies
150 Number of direction
changes actuator
exceeded
2)
–
Set threshold value
exceeded
–
Service life of the drive
reached
–
Oscillating behaviour
–
Repeated position drift
and readjustment due to
severe compressed air
leakage
–
Service drive and replace if
necessary.
–
Optimise control parame-
ters.
153 Covered distance
limit actuator
exceeded
2)
–
Set threshold value
exceeded
–
Service life of the drive
reached
–
Oscillating behaviour
–
Repeated position drift
and readjustment due to
severe compressed air
leakage
–
Service drive and replace if
necessary.
–
Optimise control parame-
ters.
156 Number of move-
ments actuator
exceeded
2)
–
Set threshold value
exceeded
–
Service life of the drive
reached
–
Stick-Slip behaviour
–
Repeated position drift
and readjustment due to
severe compressed air
leakage
–
Service drive and replace if
necessary.
–
Check drive and/or
process valve for changes
in friction.
276 Device not initialized
2)
–
Initialisation failed
–
Device not yet initialised
–
Perform initialisation.
356 PST reference test
running
–
Ongoing PST reference
manoeuvre
–
Wait until the PST is fin-
ished.
–
Cancel PST reference
manoeuvre manually.
361 PST: Reference test
run necessary
–
Faulty PST reference
manoeuvre
–
Start PST reference
manoeuvre. Only possible
via EDD and DTM.