Hardy HI 1756-nDF - Manual (Page 27)

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Chapter 4
Parameter Default Description
p gain 0.05 Proportional error term gain value. Additional percentage
of the error added to the amount of correction the module is
making.
i gain 0.65 Integral error term gain value. The percentage of the error
being applied to the auto preact.
frc tolerance 2.0 The minimum peak to peak percentage difference in flow
rate used to detect a stable flow rate. Values below this are
ignored
fast adjust 1.0 If the channel is being used in a simultaneous or sequential
feed mode this sets the percentage of target weight that can
be adjusted on the fast channel if the final measured weight
exceeds the target weight.
Status Values used in Auto-Preact function
Parameter Description
fast setpoint
time Actual time from the start of the fill cycle to when the relay on the fast
channel changes state.
slow setpoint
time Actual time from the start of the fill cycle to when the relay on the slow
channel changes state.
stable time Time from the start of the fill cycle to the flow rate becoming stable.
Unit of time is in seconds.
steady time Time from when the target weight is reached (relay triggered) to when
the weight first remains within the capture tolerance for the
programmed number of steady periods.
Unit of time is in seconds.
not stable A value of ONE indicates that the flow rate did not become stable
during the fill cycle; otherwise this status value is ZERO.
not steady A value of ONE indicates that the weight did not remain within the
capture tolerance on the scale for the specified number of update
periods, update time, before the capture time was reached; otherwise
this status value is ZERO.
Use of Auto-Preact Status Values
The minimum time to complete an auto_preact cycle is the sum of the slow setpoint time
and capture time values. The slow setpoint time value is the time from the start of the fill