K-TRON K-Commander Owner's manual

805
K-Commander Loss-in-Weight Programming
Rev: G Produced by the K-Tron Institute
LWF Programming
Using the
K-Commander

805
K-Commander Loss-in-Weight Programming
Rev: G Produced by the K-Tron Institute

805
K-Commander Loss-in-Weight Programming
Rev: G Produced by the K-Tron Institute
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distribution without written permission from the K-Tron Institute. All translation
rights are reserved by the K-Tron Institute . The K-Tron Institute has made every effort
to ensure the accuracy and validity of this document. However, errors and omissions
may have occurred. If an error or omission is found, please contact the K-Tron Institute
at [phone].
Information in this manual is correct as of the date of publication. K-Tron assumes no
responsibility for damages resulting from misuse of the equipment or negligence on the
part of operating personnel.”

805
K-Commander Loss-in-Weight Programming
Rev: G Produced by the K-Tron Institute
Table of Contents
GENERAL INFORMATION 1
Overview 1
Standard Key Arrangements 3
Editing Variables 7
Common Messages and Meanings from K-Cdr 9
OPERATOR LEVEL PROGRAMMING 10
Overview 10
LWF Page 00: Feeder Overview 11
LWF Page 01: Feed Factor Setup 14
LWF Page 02: Refill Parameters 22
Refill Setup Procedures 27
LWF Page 03: Current Alarm Messages 30
LWF Page 04: Alarm Limits 38
MAINTENANCE LEVEL PROGRAMMING 43
Overview 43
LWF Page 05: Scale Programming and Weight Span 44
Tare and Span Calibration Procedures 48
LWF Page 06: SFT Programming 51
LWF Page 07: Feeder Setup Data 55
LWF Page 07: Service Variable Index 61
LWF Page 07: Program Priority (Security Level) 69
LWF Page 08: Frequency I/O 70
LWF Page 09: Control or Tuning Parameters 74
LWF Page 10: Overview Screen 78
LWF Page 11: SPC Set-up 81
Continued on next page

805
K-Commander Loss-in-Weight Programming
Rev: G Produced by the K-Tron Institute
Overview, Continued
LWF Page 12: SPC Chart 83
LWF Page 13: Software Part Number 87
Alarm Shutdown Masking 89
INDEX 91

805.1
K-Commander Loss-in-Weight Programming
Rev: G Produced by the K-Tron Institute
General Information
Overview
Introduction:
K-Cdr The following pages describe the K-Commander (K-Cdr ) pages or
screens for the loss-in-weight application. A listing of menu selections is
provided for each screen. This document is suitable for rev. Z software.
In this chapter Please note that the page numbers beginning with 01 is merely to give
reality to the display and this number could range from 01 to 15.
Definitions Here is a listing of common terms used in loss-in-weight feeding.
Term Definition
Adaptive Tuning This is a control concept that when
implemented, the controller continues to
optimize its operation , zeroing in, if you will
on the best point of control.
Density Array A group of FeedFactors that are placed in an
array from Refill Complete to Refill Request.
The values in the array are used to operate
the feeder during Refill.
Drive Command This is the frequency output of the LWF K10S
controller that normally provides the setpoint
signal to the MDU or motor drive unit. The
larger the value of drive command, the
greater the feedrate should be. Maximum
operating value of Drive Command is 100%.
Continued on next page

805.2
K-Commander Loss-in-Weight Programming
Rev: G Produced by the K-Tron Institute
Overview, Continued
Definitions
con't
Term Definition
FeedFactor This is a calculation made by the controller
after every weight conversion that gives an
indication of the maximum flow rate of the
feeder when drive command is equal to 100%
It is calculated as:
FeedFactor = (MF/DC%)*100 where
MF= Massflow and DC = Drive Command.
Feedrate This is the massflow output of the feeder.
Gravimetric control The control is automatic. That is, the
massflow is compared to the setpoint, and if
different, a change in drive command will
occur.
Massflow Standard
Deviation This is the variance of the massflow value as calculated by the controller.
Measured Standard
Deviation This is the variance of the weight values captured from the weighing system.
Refill Complete
Weight The point, by weight, at which the refilling will stop.
Refill Request Weight The point, by weight, at which the refilling
will begin.
STP Sample time period is the length of time for a
weight sample to occur.
Tare The weight of the feeder and hopper, less
material.
Volumetric control The control is manual. That is, the massflow
is calculated if possible, but no comparison to
Setpoint is made and the Drive Command
remains fixed.

805.3
K-Commander Loss-in-Weight Programming
Rev: G Produced by the K-Tron Institute
Standard Key Arrangements
Introduction Many keys are the same and used in the same way on each screen. This
map will describe the often used keys and each page section will
describe those keys unique to that page. Here is a typical key layout for
viewing.
Layout of
often used
keys
Edit
Mode
F5 F6 F7 F8F1 F2 F3 F4
Grav
Mode Vol Mode
F5 F6 F7 F8
Change
Value <ESC>
Standard keys
and their
functions Key
Number Key Name Description
F1
Grav Mode
Places the control in Gravimetric or
Mass control. The LWF Controller
measures the massflow, compares
this value to the setpoint and
causes the Drive Command to
change so that the massflow will
equal the setpoint
F2
Vol Mode
When operating in Volumetric
control, the Drive Command is
fixed. There is no attempt by the
controller to make the massflow
value equal the setpoint.
F3 Unused
F4 Unused
F5
Edit Mode
When pressed, highlights the first
variable that can be changed. The
switch then becomes "Change
Value".
Continued on next page

805.4
K-Commander Loss-in-Weight Programming
Rev: G Produced by the K-Tron Institute
Standard Key Arrangements, Continued
Standard keys
and their
functions con't
Key
Number Key Name Description
F6 Causes the active page in Quad
screen to move counterclockwise. It
moves the active screen once each
time the key is pressed. These
F7 Causes the active page in Quad
screen to move clockwise. It moves
the active screen once each time the
key is pressed.
F8 Unused
Continued on next page

805.5
K-Commander Loss-in-Weight Programming
Rev: G Produced by the K-Tron Institute
Standard Key Arrangements, Continued
Display action
line above the
function keys
The Action Line above the function keys indicates the current action of the controller.
Edit
Mode
F5 F6 F7 F8F1 F2 F3 F4
Grav Run Local
Grav
Mode Vol Mode
Display Action Line
Here is a listing.
Located Function
Window over F1 key Indicates whether machine is in
Gravimetric or Volumetric control.
Window above F2
key Indicates whether machine is running or is stopped.
Window above F4
key If the word DISA is indicated, an external Run Enable interlock is
preventing the machine from
operating. If the word ALSHUT is
indicated, an external Alarm
Shutdown interlock is preventing
the machine from operating.
Window above F5
key If PERT Is displayed, the weighing
system is disturbed and the
feedrate will not be accurate. If
CALIBRATE is shown, the machine
is doing the FeedFactor calibration.
REFILL can also be shown.
Window above F6
key Indicates if machine is in Local, Ratio, Direct or Line 1-4 Mode or
Line 1-7.
Continued on next page

805.6
K-Commander Loss-in-Weight Programming
Rev: G Produced by the K-Tron Institute
Standard Key Arrangements, Continued
When F5-Edit
is pressed When key F5, the Edit key is pressed, certain keys take on new
functions. This table describes those functions. This detail is applicable
for all pages in this section and will be shown only here.
Key
Number Key Name Description
F5
Change Value
When this key is indicating
"Change Value", pressing this key
will result in a pop-up menu being
displayed from which you can
select a value for entry by scrolling
with the F6 and F7 key.
F6 Permits selection of a parameter
from a pop-up menu. As you press
this key, you scroll down through
the selections.
F7 Permits selection of a parameter
from a pop-up menu. As you press
this key, you scroll up through the
selections.
F8
<Esc>
When F5 says "Change Value", this
key , when pressed, gets you out of
the data changing activity and back
to the normal display.

805.7
K-Commander Loss-in-Weight Programming
Rev: G Produced by the K-Tron Institute
Editing Variables
Introduction This map gives you details about editing or changing machine
variables.
Changing a
variable Step Action
1 Press Key F5 when it says "Edit Mode"
2 Press Key F6 or F7 to highlight the desired variable to be
changed.
3 Press Key F5 now labeled" Change Value" to permit an entry
of a number by the keyboard. From the keyboard, enter the
desired value.
4 If the variable requires a non-numeric selection, a pop-up
menu will be displayed on the screen Use the F6 and F7 key
to select the desired entry.
5 Press the Enter Key to load your desired selection.
6 Press F8 to return to normal operation.
Order of data
entry, an
important
point
The order of data entry is very defined and is all based from the scale
range setting. Please follow the next procedure to program the
controller from default conditions. Use this procedure if data is lost in a
power or battery back-up failure. If SFTs are used, go to step 3.
Step Action
1 Check to see engineering units of operation are in Kg/hr-
page Mcn.07
2 Program scale range on page Mcn.05. Look to program sheet
of equipment or look at the equipment tag to define scale
capacity.
3 Change the engineering units to those of your operation.
4 Program Full Scale Setpoint on page Mcn.07
5 Program other values as required.
Continued on next page

805.8
K-Commander Loss-in-Weight Programming
Rev: G Produced by the K-Tron Institute
Editing Variables, Continued
Loss of
programming
data
If the battery on the K10S LWF controller fails, your entered
programming data will be lost. This condition is generally indicated by
looking at the variable labeled Full Scale Setpoint on page Mcn.07. It
will be 0 if data has been lost. To re-enter data, go to the prior
procedure entitled "Order of Data Entry".
It is recommended that you retain a hard copy printout of the
programming data for each machine and its pages, plus the Line and
System pages. You can use the K-Cdr print function to help you.
If power is left off the system for 3 weeks or more, it is possible that
your entered programming data will be lost due to the battery being
discharged. If this is a problem, see your maintenance department for
resolution.

805.9
K-Commander Loss-in-Weight Programming
Rev: G Produced by the K-Tron Institute
Common Messages and Meanings from K-Cdr
Introduction This section will present some common messages as displayed by the
K-Commander (K-Cdr) and provide an explanation and resolution to
them. Alarm specific messages are found in the Alarm page 03.
Common
message
listing with
resolution
The following table outlines common K-Cdr messages.
Message Meaning Resolution
Feeder Range Error The entry is outside
the limits of the
variable selected
Re-check the entry.
Check the range
limits of the variable.
Hint: see the Serial
Protocol for those
limits.
NAK Due to Feeder
Running Some variables like scale range cannot be
changed while the
feeder is running
Stop the feeder to
make this change.

805.10
K-Commander Loss-in-Weight Programming
Rev: G Produced by the K-Tron Institute
Operator Level Programming
Overview
Introduction This section deals with the pages that the operator will likely program.
Please note that the page numbers beginning with 01 is merely to give
reality to the display and this number could range from 01 to 15.

805.11
K-Commander Loss-in-Weight Programming
Rev: G Produced by the K-Tron Institute
LWF Page 00: Feeder Overview
Introduction
Page 00 The page 00 or the Overview page for the loss-in-weight feeder holds
most of the information required by the operator to run the equipment.
Use the Scroll keys to move from page to page.
Page 00 layout This diagram shows the data layout. The second row of keys pop up
when the Edit key is pressed and a variable is highlighted.
F5 F6 F7 F8
Edit
Mode
F1 F2 F3 F4
Grav
Mode Vol Mode Totalizer Clear
F5 F8
Change
Value <ESC>
POWDER LWF : Feeder Overview M01.00
MASS FLOW SETPOINT 1000.000 Kg/hr
ACTUAL CURRENT MASS FLOW 999.980 Kg/hr
MATERIAL NET WEIGHT 130.670 Kg
DRIVE COMMAND 57.770 %
TOTALIZER VALUE 133456.500 Kg
MOTOR SPEED 1039.860 RPM
Continued on next page

805.12
K-Commander Loss-in-Weight Programming
Rev: G Produced by the K-Tron Institute
LWF Page 00: Feeder Overview, Continued
Page 00
variable list The following is a listing and description of each variable on this page.
A "` " mark shows the values that you can edit. A "#" indicates that the
value is changed by a Function key.
Variable Name Edit? Description
Massflow Setpoint ` This is the operating setpoint of the
feeder and this value can be
changed when the edit key is
pressed and the variable is
highlighted in red. A value entered
in that is greater than the Full Scale
Setpoint will result in a "Range
Error" message. The entry is in
units of rate. e.g. 1000 Kg/hr. You
must press the enter key after entry
of the value to load that value into
the Massflow Setpoint location.
Range of Values
0 to Full Scale Setpoint , pg. 07
Default value: 0
Actual Current Massflow This is the result of what the feeder
is delivering into the process in the
units of setpoint. For example, the
value might be 999.9 Kg/hr. This
number represents the rate to
which material is being added to
the process.
Material Net Weight If the "Tare" is done correctly, this
number represents the weight in
Kg or Lb. of the material in the
feeder hopper.
Continued on next page

805.13
K-Commander Loss-in-Weight Programming
Rev: G Produced by the K-Tron Institute
LWF Page 00: Feeder Overview, Continued
Page 00
variable list
con't Variable Name Edit? Description
Drive Command This value indicates how much of
the controller output is used to
deliver indicated actual massflow
value.
Range of Operation
Maximum Range: 0-125 %
Nominal Range: 0-100 %
Desired Range: 10%-100 %
Totalizer Value # This value is the quantity of
product that has been delivered in
either Kgs or Lbs since the last time
the Totalizer was reset or cleared.
Range of Operation
Maximum Range: 999,999.999
Motor Speed If the Total Gear Reduction is set to
1.0 and the Gear Teeth Setpoint is
correct, then this value represents
the motor rpm of the feeder.
Page 00 special
key list The following is a listing of keys and their function.
Key
Number Key Name Description
F3 Totalizer Clear Will clear the totalizer value on
page 00 to zero.

805.14
K-Commander Loss-in-Weight Programming
Rev: G Produced by the K-Tron Institute
LWF Page 01: Feed Factor Setup
Introduction:
Page 01 The page 01 for the loss-in-weight feeder holds the information
regarding feed factors. There are various feeding factors used by the
controller. Please refer to the LWF Control section for additional
information. Use the Scroll keys to move from page to page.
Page 01 layout This diagram shows the data layout. The second row of keys pop up when
the Edit key is pressed and a variable is highlighted.
Edit
Mode
F5 F6 F7 F8F1 F2 F3 F4
POWDER LWF : Feed Factors M01.01
INITIAL FEEDFACTOR 1878.000
AVERAGE FEEDFACTOR 1731.002
FF HOPPER EMPTY 1656.607
FF HOPPER MID 1698.667
FF HOPPER FULL 1735.998
DENSITY ARRAY On
FEEDFACTOR ALARM LIMIT 0.000 %
CALIBRATE DRIVE COMMAND 10 %
CALIBRATE TIME 60 sec
CALIB. CORRELATION LIMIT 84.2
LAST CALIB. CORRELATION 87.7
MATERIAL FED LAST CALIB. 2.8850
Grav
Mode Vol Mode Calibrate Cycle
F5 F6 F7 F8
Change
Value <ESC>
Continued on next page