Micromod MOD: Modcell 2050R Users Guide - Manual (Page 169)

IB-23C650
TUNING
Table 13. Autotune Procedure
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Entry Description
PROC HI 100 Valid values are:
-2997 or PROC LO + 3 to 30000.
Remember, the range shown is for the units
decimal position.
The process value must be between the high
and low trip-point values when autotune is
activated. If the process value exceeds one of
these, the autotune cycle will shut itself off by
going to the manual mode and returning the
controller output to the value it was at when
autotune was activated. These high and low
values are desired trip-points for canceling
autotune execution.
PROC LO 0. Valid values are:
–30000 to 29997 or PROC HI – 3 .
TUNE PID
PI
= PID tuning
= PI tuning
xxx
Process
Value
AUTOTUNE Autotune execution proceeds automatically.
No operator activity is required unless a failure
or caution message appears. See Autotune
Completion description.
AUTOTUNE CAUTION Autotune execution completed and new tuning
constants are being used, but an
INCREASE
STEP SIZ , or a RESPONSE LIMITED
message follows.
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