ABB CM30 User Manual page 64

ControlMaster CM30 and CM50
Universal process controllers,
Number /
Icon
Message
070.040
(066.041)
Tuner 1 (2) Abort
078.038
(074.039)
Adaptive 1
(2) Warn
086.036
(082.037)
Oscillation 1 (2)
094.034
(090.035)
Valve 1 (2) Sticking
168.026 (166.027)
(164.028)
Tuner 1 Phase 1..3
160.030
(158.031)
156.032)
Tuner 2 Phase 1..3
162.029
(154.033)
Tuner 1 (2) Pass
178.025
In Configuration
Table 7.1 Diagnostic Messages (Continued)
62
1 1
/ and / DIN
4 2
Possible Cause
Autotune has been aborted by the user.
Parameters calculated by adaptive control have
changed by more than the permitted amounts.
Abnormal oscillations in the control loop.
Motorized valve travel time is significantly
slower than configured time.
Autotune is in progress. See page 19 for details
of each phase.
Autotune is in progress. See page 19 for details
of each phase.
Autotune has completed successfully and
calculated new control parameters.
The device is currently in the configuration
mode.
7 Advanced Level
Suggested Action
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.
Check valve to identify reason for sticking. 
Check correct travel time is entered in
configuration.
Autotune can be aborted if required by
selecting Manual control mode.
Autotune can be aborted if required by
selecting Manual control mode.
Acknowledge diagnostic message.
This is for use with remote access via digital
communications.
IM/CM/ED–EN Rev. B