Message Line Operating mode Meaning/cause Measure
Top Bot‐
tom
Automat‐
ic
Manual P-man‐
ual
FS nn X X Controlled using the configured
failsafe position
(Cause: see above).
See above
MM nn X X Positioner is in "Manual" mode.
● Set the target mode
with class-2 master to
"Automatic".
● Send the "0x80" status
(good).
MAnn X Manual mode
(nn = setpoint)
● Switch to automatic
mode using operating
mode button.
LO nn X X Positioner is in "Local override"
mode.
● Set the target mode
with class-2 master to
"Automatic".
● Send the "0x80" status
(good).
OS -- X X X Positioner is in "Out of service"
mode.
● Set the target mode
with class-2 master to
"Automatic".
● Send the "0x80" status
(good).
oFL /
127.9
Display range exceeded.
Possible causes:
● Friction clutch or
● Transmission ratio selector
moved or
● Positioner was installed on a
different actuator without
being reinitialized
● Adjust friction clutch so
that when the actuator
moves, the actual
value display stays
between 0.0 and
100.0, or
● Adjust the
transmission ratio
selector or
● Perform factory
settings (preset) and
initialization
EXSTP X X Actuator was stopped by the bi‐
nary input.
EX UP X X Actuator is moved to the upper
endstop by the binary input.
EXDWN X X Actuator is moved to the lower
endstop by the binary input.
EXPSt The partial stroke test was acti‐
vated, e.g. by a binary input.
InPSt Cyclic partial stroke test.
FST X X Full stroke test running.
Diagnostics and troubleshooting
12.1 Output of system messages in the display
SIPART PS2 with PROFIBUS PA
Operating Instructions, 05/2019, A5E00127926-AC 255
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