Hardy HI 1756-FC - Manual (Page 26)

Parameter 13-18 Refills
Automatic Refill uses user-selectable refill points to signal a start or stop of the refill
process without interrupting the feed process. HI and LO alarms can be used to flag a
refill failure.
Manual Refill allows for manual refill at any time . The Manual Refill stops at the Refill
High point.
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. Review how the Initial Refill
works before you make this selection.
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 Weight and End 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 Weight >0.0 (default 10.0) End Weight >0.0 (default 100.0)
Parameter 15/16 Refill Shutdown and Refill Too High 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 1756 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.
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Chapter 4 ●
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