
While batching, if the time is exceeded, the logical output
Stable Timeout
will go on, and
the less accurate Immediate Weight will be used to determine the batch total. The
Stable
Timeout
output should be configured to qualify a warning.
Stable Span
This is how much the weight indication may change over the set
Stable Samples
, for the
weight to be considered stable. Default is 0.2 % of the design weight. If possible, reduce
this value to get better calibration and batch total accuracy.
Stable Samples
This is the number of consecutive weigh samples for which the weight must stay within
the
Stable Span
, for the weight to be considered stable. Default is 3. For better calibration
and batch accuracy, increase this value, but be aware that the batching will be slower.
Calibrate Settings
The following parameters are used for calibration. They are used or affected by
calibration procedures. See Calibrating Your Controller on page 46.
Cal Weight
The weight you will be using when running a Weight Procedure (page 49). Default is
Design Weight. Limits are 10 to 110% of Design weight.
E-Cal Liveload
This parameter is used for the Electronic Calibration procedure (page 50). If you are
going to use Electronic calibration, you must calculate this parameter. You can not use
the default value (1.5 mV/V). Limits are 0.2 to 3 mV/V. Performing an E-Cal Factor
Procedure (page 52) will adjust this value.
Zero Weight
This parameter represents all of the dead weight on the load cells. This may include the
hopper, feeding device, motor, etc. This
does not
include the weight of the material.
Default is 0. Normally adjusted by performing a Zeroing Procedure, page 47.
Scale Factor
The Scale factor is used to calculate the weight from the counts coming out of the load
cell A/D (HPAD) converter. It is normally adjusted using the Material Calibration (page
48), Weight Procedure (page 49) or Electronic Calibration (page 50) procedures.
You can calculate the Immediate Weight from the HPAD counts by using the following
formula:
ZeroWeight
r
ScaleFacto
HPADCounts
Weight
−
=
Quick Setup
This button will setup nominal values, based on Design Weight and Feedrate. Pushing
this button is a drastic action. It should only be done when initially setting up the
controller, or when you are changing fundamental design parameters. After running the
Quick Setup function, you should verify the parameters in the setup menus. The following
parameters are affected:
Name Setting
Page
Weight Decimal Point
Set for three significant digit weight representation 23
Total Decimal Point
2 if the total unit is TN or t, else 0.
Batch Decimal Point
Set for three significant digit batch total
representation
35.00.EX O&M Manual
28
Summary of Contents for MC3 35.00.EX
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