ABB ControlMaster CM50 Manual page 28

28 C O N T R O L M A S T E R C M 3 0 & C M 5 0 | P R O C E S S C O N T R O L L E R S , 1/4 & 1/2 D I N | C I/C M 3 0/ 5 0 - E N R E V. C
...8 Diagnostics messages
Icon Number/ Possible cause
Message
The configuration contains a source that is no
Config Error
longer present or valid.
Autotune has failed to complete its sequence or
054.044
has calculated values outside of its permitted
(052.045)
range.
Tune Lp1 (2) Fail
Autotune has failed due to excessive process or
062.042
measurement noise
(058.043)
Tuner 1(2) Noise
Autotune has been aborted by the user.
070.040
(066.041)
Tuner 1(2) Abort
Parameters calculated by adaptive control have
078.038
changed by more than the permitted amounts.
(074.039)
Adaptive 1(2)
Warn
Abnormal oscillations in the control loop.
086.036
(082.037)
Oscillation 1(2)
Suggested action
Check invalid sources in Diagnostics menu.
Check configuration, check I/O required for configuration is
present and correct any illegal use of the invalid signal by
changing configuration or fitting additional option cards.
Check process response.
Consider changing the Autotune dynamic setting.
Ensure process is stable and repeat autotune.
If problem persists tune the loop manually.
Check input wiring.
Ensure process is stable and repeat autotune.
If problem persists tune the loop manually.
Check process for issues that may have caused a large change
in its dynamics, for example, a blocked valve.
Reset adaptive control.
Perform a fresh autotune.
Check process.
Perform new manual or Autotune.