Integral Time; Derivative Time; Overshoot Control; Heat/Cool Dead Band - ascon M3 Series User Manual

Band alarm
SP
On
Off
On
Off
hy hy
full scale full scale
alarm threshold
Proportional
# p . b .
band
This parameter specifies the pro-
portional band coefficient that mul-
tiplies the error (SP - PV)

Integral time

# t . i .
It is the integral time value, that
specifies the time required by the
integral term to generate an output
equivalent to the proportional term.
Off
When the integral term is not
included in the control algorithm.
Derivative
# t . d .
time
Active
out
It is the time required by the propor-
tional term P to repeat the output pro-
Active
vided by the derivative term D. When
in
Off
the derivative term is not includ-
ed in the control algorithm.
Control output
# t . c .
cycle time
Cycle time
# t . c . C
cool
It's the cycle time of the time pro-
portioning control output. The PID
control output is provided through
the pulse width modulation of the
digital waveform.
Overshoot
# O . C .
control
This parameter specifies the span
of action of the overshoot control.
Setting lower values (0.99 — > 0.01)
the overshoot generated by a
Setpoint change is reduced. The
overshoot control doesn't affect
the effectiveness of the PID
algorithm.
4 - Operations
Setting 1, the overshoot control
is disabled.
Heat/Cool
# d . b nd
dead band
This parameter specifies the width
of the deadband between the Cool
and the Heat channel.
Control output
# O p. H
high limit
Cool output
# O p. H C
high limit
It specifies the maximum value the
control output can be set
Control output
# h y.
hysteresis
Cool output
# h y. C
hysteresis
Hysteresis of the threshold
SP
On
Off
hy
Control output hysteresis span, set
in % of the full scale.
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