PLATINUM
TM
Series User’s Guide
45
Reference Section: Programming Mode (PRoG)
Navigate to the desired manual parameter. Parameters include the following:
•
_P_
– Proportional Factor. The proportional factor amplifies the error function
(process value minus Setpoint) to accelerate progress towards to the Setpoint. (The
default value is 001.0.)
•
_I_
– Integral Factor. The integral term in the PID algorithm amplifies the
integrated error function over time and can increase the acceleration towards the
Setpoint faster than the Proportional factor (and potentially result in more
“overshoot”). (The default value is 000.0.) This factor is sometimes referred to by its
reciprocal, “Reset.”
•
_d_
– Derivative Factor. The derivative term in the PID algorithm senses the rate of
rise or fall of the input measurement and throttles the PID algorithm accordingly. A
higher value for this factor can speed up or slow down the response of the system
even faster than an increase in the Integral Factor will. (The default value is 00.00 as
only quickly responding systems actually need to use the derivative term.) This factor
is sometimes referred to by its reciprocal, “Rate.”
Select the indicated setting.
Set the desired value.
Confirm the value.
5.5.5
Low Output Clamping Limit (PRoG > PId > %Lo)
Select the Low Output Clamping Limit (
%Lo
) parameter. This parameter sets the lower limit of
%Power applied to an analog output, or %On time for PWM (pulse width modulated) control
used with the other output types. (The default setting is 000.0%.) The maximum value is
100.0%.
Set the desired value.
Confirm the value.
5.5.6
High Output Clamping Limit (PRoG > PId > %HI)
Select the High Output Clamping Limit (
%HI
) parameter. This parameter sets the upper limit
for %power to analog outputs or %on time for PWM control with the other output types. (The
default and maximum setting is 100.0%.)
Set the desired value.
Confirm the value.
5.5.7
Adaptive Tuning (PRoG > PId > AdPt)
Select the Adaptive Tuning (
AdPt
) parameter.
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