Conair GB/ WSB manual EXAMPLE: ROC set to ROC, Page

ROC parameter (ROC 10000), will cause a portion of the Regrind to be SUBTRACTED from the Natural portion, instead of added.

EXAMPLE: ROC set to (ROC 10020).

The 20 means take 20 % of the REGRIND dispense and ADJUST the NATURAL dispense by this amount. The 1 means adjust by SUBTRACTION.

Whatever amount of REGRIND is added, 20 percent of this amount will be subtracted from the Natural amount before a color calculation is made.

If Regrind dispense = 600 grams, and Natural portion = 1400 grams,

Color, at 4 percent, would be 56 grams if ROC=00000.

If ROC=10020; reduce Natural by 20 % of 600, (120 grams).

So color is calculated to be 4 % of 1280 grams (1400-120), which equals 51 grams.

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ROV

ROV is a parameter that will allow your unit to AUTOMATICALLY change to a higher REGRIND USAGE in the event that the amount of regrind being produced exceeds the usage rate.

NO LEVEL SENSORS are required for this parameter to work.

The first two digits of the parameter number represent a CYCLE COUNT, the last three digits represent a PERCENT. When EITHER number equals zero, the parameter has no effect.

If your system dispenses the full requested amount of regrind for the number of consecutive cycles specified by the CYCLE count, it automatically jumps to the PERCENTAGE indicated by the last 3 digits.

This parameter is useful if your process is one where a runner is molded, ground up, and loaded back into the regrind hopper immediately and continuously every cycle.

For example: Say your runner represents 20 percent of your shot weight. You set your controller to 25 percent regrind. Under normal conditions your system adds back the 20 percent of scrap that is produced each cycle, only occasionally dispensing up to the maximum 25 percent that the setting calls for. Since supply is limited to 20 percent, you never dispense a full 25 percent more then once or twice in a row.

Now say you start producing all bad parts and the entire shot is being feed into the grinder as scrap. Dispenses will now be a full 25 percent every cycle. The regrind hopper will also begin to fill.

With this parameter set to (ROV 10100) (10 cycles and 100 percent), after 10 cycles have occurred at the full 25 percent, the unit will automatically start using regrind at 100 percent

This prevents your hopper from becoming full. This is critical in fully automated systems that are evacuating the chamber of a grinder continuously and rely on space in the regrind hopper to keep the grinder discharge clear.

As soon as one cycle occurs that does not dispense the new full amount,

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