Hardy HI 1769-FC - Manual (Page 43)

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Chapter 4
Initial Refill
Initial Refill ensures that the feeder contains enough material to safely begin operation. It
can help to decrease the number of refills during a run
After you select Initial Refill and start the feeder, the instrument checks to see if the
material in the hopper is below the refill end weight. If it is, the instrument goes into refill
mode until the refill end weight is reached.
Parameter 11 Initial Refill on
This value serves as an ON/OFF switch for the initial refill function.
Range: 0 = no, 1 = yes (default NO)
Parameter 12 Auto Refill On
This value serves as an ON/OFF switch for the auto refill function.
Range: 0=off, 1=on
NOTE If Initial Refill is on with Auto Refill off, the unit still goes into refill mode until the unit
high weight is reached. If you wish to prevent this, turn off Initial Refill when you turn off
Auto Refill.
Parameter 13/14 Refill Start Low Weight and Stop High Weight
The Start Weight, which is set in mass units (actual gross weight), triggers a signal to
begin the refill process. You need to determine when you want the refill to automatically
begin (or an alarm to trigger so an operator can refill the feeder). The Start Weight value
must be higher than the Lo Shutoff value. End Weight signals when the hopper is full.
Range: Start Low Weight >0.0 (default 10.0) Stop High Weight >0.0 (default 100.0)
Parameter 15/16 Refill Shutdown and Refill High Alarm Weight
The Refill Shutdown setting stops the process when there is insufficient or no material in
the hopper. This setting can be 0 weight indicating nothing in the hopper or a weight
setting somewhat above the 0 weight and below the Refill Start Weight value. The Refill
Shutdown value must be below the Refill Start Weight value.
The weight you enter for Refill Too High will trigger an alarm should the weight go
above this value while refilling.
Refill Shutdown Range >0 (default 0) Refill Too High Range >0 (default 100,000)
Parameter 17 OP Adjust
There are thee options:
OFF: (default) Turns off the function.
ON-LEARN: (works only with Auto Refill) The HI 1769-FC saves the % output and
change in weight values from previous refills and continuously calculates the optimal
Output % based on these values. This allows the instrument to adjust as conditions and
the material or refill characteristics change over time.
ON-FIXED: With Refill, you can use ON-FIXED to either lock in an effective learned
value or enter a noted value that has worked well on previous applications. Let unit learn
for several refills then switch to fixed.
Range: 0, 1 or 2
Parameter 18 OP Adjust %/wgt during refill