Siemens SIPART DR21 Kurzanleitung Seite 51

Error messages during
adaption procedure
Error Explanation
FASt Adaption with sufficient accuracy
not possible because system
time constant is too small!
n.ddc Tracking or DDC mode using
control signals.
n.End Full scale still not reached at
67 % tU.
no.dY The y step for an S controller has
still not been performed correctly
following initialisation.
ovER Extremely oscillating process.
Automatic adaption not possible!
P.oFL x outside span of 0 to 100 %.
PASS Direction of transient response.
Si Safety mode YS active by DI.
SMAL After 50 % tU insufficient change
of x.
StAt Steady state not achieved within
10% tU following start of adap-
tion %tU.
Y.oFL y outside the manipulated varia-
ble limits yA, yE.
YbL Direction-dependent blocking
mode using control signal DI.
SIPART DR21
C73000-B7474-C141-07
Step
Manual adaption execute.
Switch off tracking mode
-- tU too short? (increase)
-- Manual adaption.
Examination of external feedback
and the drive
Manual adaption.
Before the adaption change out-
put y and/or increment of dY
Change controller direction.
Switch off safety mode.
Chose new increment of dY or
change controlling time.
Wait and start adaption again,
i.e. manual adaption.
Before the adaption change out-
put y and/or increment of dY.
Switch off blocking mode
3.7
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