Table 5-14. System Module
Title Definition Atom Data-
point
De-
fault
Status
(Cont.)
EASY-TUNE Unsuccessful Status Display
B387 = Description Suggested Action or Cause/Retry
51 Controller output was saturated. Controller output was saturated at
the start.
52 Saturation would have occurred Reverse the sign of step size
if EASY-TUNE had continued. configured in C381.
53 PV excursion exceeded the limit. Reduce the step size magnitude in
C381 or increase MAX PV excursion
limit in C380.
54 Controller output was changed Don’t change output manually or
externally, i.e. deliberately or through the F-Tran program.
accidentally.
55 A time-out had occurred when Increase the digital filter index
B387 was 1. and/or the limiting time in C379.
56 A time-out had occurred when Either increase the limiting settling
B387 was 2. time in C379, increase C381 or
decrease C378.
57 A time-out had occurred when Disturbance may have occurred
B387 was 3. during EASY-TUNE.
58 A time-out had occurred when Disturbance may have occurred
B387 was 4. during EASY-TUNE.
59 A time-out had occurred when Disturbance may have occurred
B387 was 5. during EASY-TUNE.
60 L521 was set to 1. EASY-TUNE was deliberately
terminated.
61 Tuning parameter limit(s) were Widen the tuning parameter limits
exceeded and used in the in C385-C390 or set L520 to 0.
controller.
ESTAT B387 0
5-39
53MC5000 Process Control Station
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