ACS contsys MIR-491, Руководство по эксплуатации

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3.5.1
Selecting the method ( ConF / Cntr / tunE )
tunE = 0 Step attempt during start-up (if X SP - 60 K):
The controller outputs 0% or Y.Lo and waits, until the process
is at rest. This is followed by:
2-point controller : step attempt for heating loop. Then,
the determined parameters are used for
line-out to the set-point.
3-point controller : as 2-point controller . Now, the heating
output is frozen and a cooling pulse
(100%) for the cooling loop is output.
After determination of cooling parameters,
control is continued using the heating
and cooling parameters.
tunE = 1 Pulse attempt during start-up (if X SP - 60 K):
Controller outputs 0% or Y.Lo and waits, until the process is
at rest. This is followed by:
2-point controller : pulse attempt (100%) for heating loop.
followed by line-out to the set-point using
the determined parameters.
3-point controller : as 2-point controller . The heating output
is frozen and a cooling pulse (100%) for
the cooling loop is output.
After determination of cooling parameters,
control is continued using the heating
and cooling parameters.
tunE = 2 Always step attempt during start-up: see TunE = 0
g
With 3-point stepping controller configured, only the step attempt after start-up
is available for self-tuning ( tunE = 0 ).
3.5.2
Self-tuning start
Strt = 0 Only manual start by pressing keys Ù and È
simultaneously or via interface is possible.
Strt = 1 Manual start by press keys Ù and È simultaneously
via interface and automatic start after power-on and detection
of process oscillations.
g
If the process value is higher than the set-point minus 60 K (X ≥ SP - 60 K) and
self-tuning is started manually, the control to the set-point is using the old
parameters followed by an optimization at the set-point .
Operation
Operating manual MIR-491 15 Self-tuning