User manual
- 27
9.3 GROUP C - AUTOTUNING AND P.I.D.
31
tune.
Tune (Word modbus 2031)
Autotuning type selection.
0
Disabled. (
Default
)
1
Automatic. Calculation of P.I.D. parameters at starting and at
command setpoint modification.
2
Manual (P.I.D. with automatic parameters calculation by word 1004
or 1205)
3
Once (P.I.D. with parameters calculation only once at starting)
4 Synchronized.
32
s.d.tu.
Setpoint Deviation Tune (Word modbus 2032)
Selects deviation from command setpoint as threshold used by manual tuning
to calculate P.I.D. parameters.
0-10000 [digit] (degrees.tenths for temperature sensors).
Default
: 300.
33
p.b.
Proportional Band (Word modbus 2033)
Process inertia in units
0 ON / OFF if also
t.i.
is equal to 0. (
Default
)
1...10000 [digit] (degrees.tenths for temperature sensors).
34
i.t.
Integral Time (Word modbus 2034)
Process inertia in seconds.
0 (0.0s)...20000 (2000.0s) tenths of second (0 = Integral action disabled),
Default
0
35
d.t.
Derivative Time (Word modbus 2035)
NDerivative time. Normally ¼ of integral time.
0(0.0s)...10000(1000.0s) tenths of second (0 = Derivative action disabled),
Default
0
36
d.b.
Dead Band (Word modbus 2036)
Dead Band.
0...10000 [digit] (degrees.tenths for temperature sensors) (
Default
: 0)
37
p.b.c.
Proportional Band Centered (Word modbus 2037)
Defines if the proportional band has to be centered on setpoint. In double loop
functioning (heating/cooling) is always disabled.
0
Disabled. Band under (heating) or over (cooling) (
Default
)
1
Centered band
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