User guide

AccuMeter Controller Chapter 11: Configuring a new PLC 65
FEEDER SETUP Tab
• DISPLAYED NAME for the feeder as it appears throughout the controller. The electrical
documentation and alarm log refer to them as FEEDER A-L regardless of the label here.
• Change the GRAPHIC that is used to represent the hopper by touching the small graphic icon.
• Modify the HOPPER SIZE. This is the value that the system will fill the hopper to during
refill. This may should be set to prevent overfill regardless of the bulk density of the wide
variety of materials you may use in this feeder. If set too large then the reload valve will
remain open and the hopper will become volumetric. This is a useful trick if you are having a
load cell problem and want to be able to continue running without a load cell. You would also
have to disable the RELOAD TOO LONG ALARM (Alarm Setup Tab).
A guide line is shown below:
Hopper Diameter
(inches)
Approximate Hopper
Capacity
(@35 lbs. / cu. ft.)
9 7
12 14
14 18
20 40
24 60
• Modify the MAX MOTOR SPEED. This can be set to whatever scale you wish to use. If
you have an AC drive that displays the frequency in HZ then set this to the max HZ. If you
have a DC PWM drive and you want it to match the actual maximum RPM of the motor
then refer to the name plate on the motor and set it accordingly. Whatever you set this to
will only effect the manually inputted speed control. However, do not make changes to
these settings while you are running or unexpected results may occur.
• RELOAD % is the percent of hopper weight that triggers a refill to occur. This value can
be changed, but refilling too often will greatly reduce the accuracy of a gravimetric feeder.
• EMPTY% is the percent of hopper that is viewed as being out of material. Leaving some
material in the hopper prevents deviations in scale calibration from appearing like material
when the hopper is actually empty. This should not need to be changed