CHAPTER 1 – SYSTEM DESCRIPTION

CHAPTER 1 – SYSTEM DESCRIPTION
OPERATOR'S MANUAL
CHAPTER 1 – SYSTEM DESCRIPTION
The DICKEY-john Control Point™ system uses three-channels (three separate
controlled servo loops) on spreader vehicles to simultaneously control the
spreading of granular and liquid ice-control materials. Two channels control
granular and liquid application rates and the third channel precisely controls
spinner speed to maintain even material coverage over the desired spread
width. The dispensing rate varies directly with ground speed to ensure accurate product application.
Material can also be spread at a preset “BLAST” application rate. This is
normally a very large rate to instantly adjust the target APR (application rate)
for covering bridges and intersections with a much heavier amount of material.
GRANULAR CHANNEL CONFIGURATION
The granular channel controls the amount of material dumped onto the
spinner plate(s). To do this, the Control Point™ monitors a tachometer style
feedback sensor located on the V-box drag chain or tailgate auger. A resultant
drive signal adjusts the conveyor mechanism speed to deliver the target
application rate (APR) by regulating the hydraulic valve position.
Figure 1. System Components
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LIQUID CHANNEL CONFIGURATION
The liquid channel controls the application rate of prewetting or deicing
materials. When prewetting, the Control Point™ Console monitors a flowmeter
style feedback sensor. When deicing, either a flowmeter or pressure style
feedback can be used. Using feedback data, the pumping mechanism output
adjusts the target application rate by either regulating pump speed or flow
blocking.
Deicing systems use up to five boom inputs for applying material to more than
one lane at a time.
SPINNER CHANNEL CONFIGURATION
The spinner channel controls the spinner plate(s) speed with either a closedloop (precision) or an open-loop configuration. In the closed-loop configuration, a tachometer style feedback sensor, mounted on the spinner assembly,
monitors spinner activity. Using the feedback data, the spinner mechanism
speed adjusts for the target setting by controlling the hydraulic valve position.
In open loop systems, the hydraulic valve position is relative to the WIDTH
ADJUST knob setting on the Control Point™ Switch Module.
The customer must determine the spread-width accuracy needed. DICKEYjohn Marketing and Product Service personnel are available with additional
information to help with this decision.
PRODUCT APPLICATION MECHANISMS
The granular and spinner channels use, in addition to feedback (shaft rotation)
sensors, either servo valve actuators or proportional valves to control the
product application and spinner speed. The liquid channel uses, in addition to
feedback sensors (flowmeter or pressure transducer), a liquid pump to control
product application. The liquid pump output is controlled by either a 12 volt
DC motor, servo valve actuator, or proportional valve.
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SYSTEM FEATURES AND CAPABILITIES
1. Easy installation - surface-mounting Console kit.
2. Switch Module located anywhere in the cab to allow optimum
placement for the operator.
3. Large 160X128 dot-matrix LCD display with backlighting for
nighttime viewing.
4. Single Console button for system power on/off and screen selection.
5. RS-232 port for PC uploading and downloading of data.
6. Detachable keyboard for easy supervisor programming and
calibration using multilevel, menu-driven screens.
7. Custom programming available to minimize setup time.
8. Compatibility with a variety of sensors, servo valve actuators, and
proportional valves available from DICKEY-john or other manufacturers.
9. Audible and visual alarms for system and operator errors.
SYSTEM COMPONENT DESCRIPTIONS
A DICKEY-john Control Point™ system consists of six basic components;
(1) Console, (2) Switch Module, (3) ground speed sensor, (4) feedback devices to
monitor material application, (5) actuator devices to regulate material application,
and (6) harnesses to interconnect all system devices. The detachable keyboard
(optional) and PC (not provided) are programming aids and not actually a part of
a basic Control Point™ system.
Figure 1 illustrates the Console, Switch Module, and keyboard. Figure 2 shows
components in a block diagram. The Console and Switch Module are located
inside the truck cab. These two items may be mounted side-by-side or the Switch
Module can be positioned for operator convenience.
A. Console
The Console displays information on a dot-matrix LCD and uses a single pushbutton switch to control system power and to view several operator screens.
Using an external keyboard for programming and placing operator controls on
the Switch Module greatly simplify the Console.
An RS-232 port connector, located on the Switch Module harness, permits data
transfer to and from the Console. This port interfaces to a PC for downloading
accumulator and alarm information. When replacing a console or when identical
vehicles require programming/calibrating, uploading and downloading configuration information through the port is extremely useful. For multiple units, only one
system needs to be programmed and then the constants can be transferred
(downloaded) from that console, stored in a PC file, and uploaded to the other
vehicle's console. Note: This is only useful on identical vehicles.
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Figure 2. System Block Diagram
B. Switch Module
The Switch Module harness plugs into the Console and contains connectors for
both keyboard and PC interface as described above.
The operator controls the real-time functions of the Control Point ™ system
from the seven switches on the Switch Module. (See Figure 3).
C. Keyboard
The keyboard is the means the operator uses to program and calibrate the
system. The 86-key, alphanumeric, PC-compatible keyboard has been environmentally hardened for use in the ice-control field. After programming and
calibration are finished, the keyboard is usually disconnected and stored.
D. Ground Speed Sensor
The ground speed sensor generates vehicle speed information for the console.
Sensor electrical pulses proportional to the vehicle ground speed are vital to
system operation because true vehicle ground speed is necessary for accurate
product application. The system can function with a wide variety of electronic
and mechanical speedometer sensors, including Hall-Effect and Reluctance
sensors.
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E. Feedback Sensors
The feedback sensors send product flow information to the console for accurate
product application. Both granular and spinner channels require pulsed
electrical sensors having an output proportional to the mechanism speed. The
liquid channel accepts either electrical pulsed sensors or analog sensors with
outputs proportional to material flow (pulsed) or system pressure (analog). A
liquid prewetting system only accepts pulsed feedback while higher capacity
anti-icing systems accept either pulsed or analog.
F. Actuator Devices
Actuator devices regulate material flow for accurate control of product application rates. Normally, granular and spinner channels regulate the hydraulic oil
flow rate to a motor. Liquid channels use several different configurations. Many
prewetting systems use a DC pump to regulate flow by controlling pump speed.
Other systems use hydraulically driven pumps similar to agricultural applications.
G. Hopper Level Sensor (Optional)
The optical light beam of this level sensor is blocked by the granular material in
the spreader bed. When the material level falls beneath the sensor mounting
level, a repetitive beep sounds and an appropriate message displays in the
warning/alarm area of the OPERATE screen.
I. Harnesses
The Main Harness assembly connects the Console to the ground speed sensor,
feedback sensors, channel valve (or DC motor) actuators, vehicle battery,
ignition, and additional optional connections (including two-speed axle, hopper
level sensor, and boom sense inputs). An optional Extension Harness, allows
the Main Harness to extend outside the cab, contains duplicate connectors to
permit hookup flexibility. Other extension harnesses are available to allow
flexible sensor arrangement.
HOW TO OBTAIN TECHNICAL SUPPORT
For prompt and courteous assistance and answers to your questions, call
DICKEY-john Technical Support at (217) 438-3371 or Fax (217) 438-6012 or
438-6539. For toll-free calls in either the USA or Canada, dial 1-800-637-3302.
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CHAPTER 2 – OPERATING PROCEDURES
This chapter explains how the operator (driver) of an ice-control vehicle uses
the controls on the Switch Module and Console to perform standard operator
functions. Note: The detachable keyboard (optional) is required to program and
calibrate the system as described in the next Chapter.
Depending upon programming, the operator can view three or four different
screens of data. The OPERATE screen is the home screen for monitoring
spreader operation; the remaining screens are supportive – MATERIAL
SELECT/MANUAL SPEED, CURRENT TOTALS, and SEASON TOTALS.
The MATERIAL/MANUAL SPEED SELECT screen is only accessible if the
system is stationary (no ground speed).
PREPARING FOR OPERATION
Perform the following procedures only after the system is installed, properly
programmed and calibrated. Practice the following procedures with the vehicle
stationary to gain familiarity with the operating controls and screens before
applying product.
Figure 3. Switch Module Controls and Definitions
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STARTING THE SYSTEM
1. Verify the MASTER Switch on
the Switch Module is in the
OFF position (See Figure 3).
Figure 4. Master Switch
Warning Message
If the Master Switch is in the
AUTO position during power up,
a warning message with audible
alarm occurs until the switch is
turned OFF (See Figure 4).
2. Turn on the ignition switch.
If the Console was on when the
ignition was last turned off, the
display comes on with the
ignition switch. A screen briefly
shows the DICKEY-john logo
followed by the OPERATE screen (See Figure 6).
If the console does not power on, the console button was used to
properly power down the unit. Proceed to Step 3.
3. Briefly press the Console button (less than a second) to apply
power to the Console (See Figure 5).
Figure 5. Console Showing Functional Items
If the button is held too long, a beep sounds indicating
the Operate screen is skipped and an accessory screen
appears instead (This screen described later). If the beep
is heard, turn the console off as indicated in Step 4 and
start again.
During start-up (power up), the Console automatically
closes all system actuators and performs self-tests, including system configuration and application data. If an error
occurs at power up or during operation, an appropriate
error message displays with recovery information.
4. Turn the Console off by pressing and holding the
Console button until a beep sounds and the text on
the screen disappears (approx. 3 seconds) and then
release.
Power is removed when the screen goes dark. To restart,
repeat Step 3.
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Figure 6. Divisions of the OPERATE Screen
OBSERVING THE OPERATE SCREEN DIVISIONS
1. Study the OPERATE screen layout (See Figure 6).
Three windows across the upper portion display Granular, Liquid,
and true (actual) Ground Speed data. Directly above, status of the
booms graphically display. Below the windows, error messages
appear briefly for system errors along with an audible alarm. In the
lower third, the Spread Width Bar graphically indicates percentage
of spinner activity via a black bar. At the bottom, the current date
and time display.
2. At the Switch Module, turn the Granular and Liquid ON/OFF
switches off, then back on again (See Figure 3).
Notice, the window for each product reads OFF and then returns to
the material and target (APR) values again.
Ground speed is independent of product application and therefore
displays only when the vehicle is moving.
Product application begins with vehicle motion if the Master Switch
is in the AUTO position. The actual APRs display in roughly twice
the size of the target APRs (See Figure 7).
3. Change the target rate of either product channel by pressing
the respective “INC/DEC +/-” switch on the Switch Module.
The value increments/decrements as a beep is heard for each inc/
des step. If the switch is held, the value repeats until reaching a
preset limit. If changed while the vehicle is moving, the new target
APR displays for approximately two seconds, then reverts to the
actual APRs.
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Figure 7. OPERATE Screen Showing Product Application
4. Rotate the WIDTH ADJUST knob on the Switch Module
while observing the SPREAD WIDTH bar on the display.
The rotational speed of the spinner changes with the knob setting.
The horizontal bar graphically represents the position of the
SPREAD WIDTH knob. The bar is at the 100% position when the
knob is fully clockwise, corresponding to maximum spinner speed.
The operator determines the correct setting by observing the spread
pattern. The bar is hollow until the spinner is operating.
5. Note the date and time across the bottom edge of the screen.
6. Observe the boom graphics across the top of the screen.
All boom sections appear as rectangle blocks during anti-ice
operation. Each section is hollow until activated.
7. Observe the area for alarm messages.
Alarm messages appear (flashing) in the middle of the screen, above
the SPREAD WIDTH bar (See Figure 7).
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Figure 8. Screens Available to
Operator by Cycling
MATERIAL/MANUAL SPEED SELECT SCREEN
This screen is divided into two major divisions. The Material Select portion
(upper half) lists the products programmed for use. The Manual Speed
portion (lower half) allows selecting of an artificial ground speed signal in the
event the standard ground speed sensor fails. Without a ground speed signal,
the system is inoperative unless manual speed operation is selected.
This screen can only be accessed if (1) the vehicle is stationary (zero ground
speed), (2) the MASTER Switch is in the OFF position, and (3) more than
one material is listed in either list or manual ground speed has been enabled
during programming.
A. Selecting a different Dispersal Material
1. Press the Console button and release immediately after a
beep.
Figure 8 illustrates the MATERIAL/MANUAL SPEED SELECT
screen showing four materials for each product channel enabled.
2. Verify that the Granular ON/OFF and/or Liquid ON/OFF
switches on the Switch Module are ON.
The channel ON/OFF switch must be ON to select a different
material.
3. Press the INC/DEC +/-” switch of the appropriate channel
(granular or liquid), in either direction, to move the pointer up or down on the left side of either list.
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B. Substituting Manual Speed for Standard Speed Sensor
If the ground speed signal is lost, the system ceases to function. If this occurs
due to a loss of sensor, cabling problems, etc., an artificial ground speed signal
can be substituted to continue limited operation. The fixed ground speed must
be previously programmed and then can be selected from the MATERIAL/
MANUAL SPEED SELECT screen (See Figure 8).
1. Stop the vehicle and turn the MASTER switch OFF. From the
OPERATE screen, press the Console button and release after
the beep to access the MATERIAL/MANUAL SPEED SELECT screen.
2. Press the BLAST button to change the selection as prompted
at the bottom of the screen.
Notice the line stating “MANUAL ON”. As the BLAST button is
pressed, NO changes to YES. Releasing the button reverts to the
OPERATE screen. The ground speed window now displays the
word MANUAL at the bottom.
3. Continue spreading material, maintaining displayed speed as
closely as possible, to ensure accurate application.
The system spreads material but no accumulators are updated since
system accuracy cannot be assured. The related sensor and harness
should be inspected and repaired as soon as possible to restore
normal operation.
C. Returning to the OPERATE screen
Figure 9. CURRENT TOTALS
Screen
1. Press the Console button three times, waiting for the beep
before releasing, to cycle back to the OPERATE screen (See
Figure 8 for all screens).
The OPERATE screen now shows the material name(s) just selected, along with the correct (programmed) target APR.
ACCESSING THE CURRENT TOTALS SCREEN
If MANUAL SPEED operation has been selected (see heading MATERIAL/
MANUAL SPEED), this must first be deselected before the CURRENT
TOTALS screen can be cleared.
1. From the OPERATE screen, press and release the Console
button after the beep. Press a second time, if necessary, to
display the CURRENT TOTALS screen (See Figure 9).
The MASTER Switch must be in the OFF position before any other
screen can be accessed.
The CURRENT TOTALS screen (See Figure 9) appears showing
totals accumulated for the current product selected.
To see other totals, return to the MATERIAL/MANUAL SELECT
screen and select those products.
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CLEARING THE CURRENT TOTALS
Figure 10. Clearing top half of
CURRENT TOTALS Screen
The ability to clear the CURRENT TOTALS screen is programmable in
the Programming mode (See PROGRAMMING chapter). If so programmed, all totals on this screen should be recorded before clearing, then
proceed as follows.
1. With the Granular switch on, (top half of the screen), press
the Granular +/- (left) switch up and release when the
beep sounds.
A message “PRESS DEC TO CONFIRM CLEAR (product)
ACCUMS (accumulators)” appears.
2. Next, press the same switch down (decrement) and the
totals reset to zero (See Figure 10).
To clear the bottom half, repeat the steps for the liquid channel
with the Liquid +/- (right) switch (See Figure 11). Press the
console button to stop the clear operation.
ACCESSING THE SEASON TOTALS SCREEN
Figure 11. Clearing Bottom Half
of CURRENT TOTALS Screen
1. From the OPERATE screen, press and release the Console
button after the beep. Repeat until the SEASONS TOTAL
screen appears (See Figure 12).
This screen shows the amount
Figure 12. SEASON TOTAL
of material applied, miles
Screen
traveled during application,
and hours elapsed this season
for each product in both the
AUTO and BLAST modes.
The totals can only be cleared
in the Program Mode (keyboard).
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USING THE BLAST BUTTON
Pressing the red BLAST button (on the left side of the Switch Module) causes
material to dispense at a higher, programmed rate. The BLAST button performs several functions, depending upon programming options.
1. With the Operate screen displaying, press the Blast button on
the side of the Switch Module.
When the Blast button is pressed, the Operate screen displays
BLAST ON above the SPREAD WIDTH bar.
This either initiates a timed blast cycle (programmed length) or
momentary (blasts only with the button pressed). A timed blast
period can be terminated early by activating the BLAST button a
second time. Blasting can be initiated with the MASTER Switch in
AUTO or OFF.
With a timed blast cycle, a programmed minimum ground speed
establishes the material flow rate until that speed is exceeded by the
actual ground speed.
MASTER SWITCH IN THE UNLOAD POSITION
The UNLOAD position of the MASTER Switch is used to quickly remove
material from the truck.
Warning: If the spinner is programmed to operate during UNLOAD,
be sure that no one is in the vicinity before performing this procedure
to avoid possible injury!
1. Back up to the appropriate location and momentarily press
UNLOAD.
The actuators open fully for those channels turned on from the
switch module.
2. To stop the unload operation, move the MASTER switch to
the OFF position.
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CHAPTER 3 – KEYBOARD PROGRAMMING
Programming allows the operator to enter rates, limits, and other
parameters into the Control Point™ memory for regulating system
product application. These parameters are entered through a detachable
keyboard. Specifics include (1) calibration constants, (2) configuration
parameters (sensor and actuator specifications), (3) granular and liquid
material information, and (4) product application rates (APRs). It also
includes resetting system accumulators for vehicle mileage, material
usage, and time totals.
Programming must be performed before attempting system calibration.
Accurate system calibration constants are determined through regular
calibration routines. However, known constants at the time of programming can be entered thus reducing the calibration procedures required.
Calibration corrections can be revised anytime to fine tune accuracy.
LOGGING CONFIGURATION DATA
All calibration constants and other system parameters should be recorded on the CALIBRATION DATA RECORD sheets at the rear of this
manual. In the event of Console damage or lost data, rapid recovery is
assured. If the Control Point™ Console ever requires replacement, all
values can be transferred directly to the new Console via the keyboard.
PREPROGRAMMING
Each Control Point™ system is shipped from DICKEY-john pre-programmed. Specific parameters can be custom pre-programmed by
DICKEY-john to minimize customer programming. This simplifies
calibration but final SYSTEM RESPONSE (See CALIBRATION chapter) must be performed after installation on every truck.
Figure 13. Keyboard Layout and Functions
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USING THE KEYBOARD AND SCREENS
Programming and calibration is accomplished using the keyboard and onscreen, menu-driven instructions. The keyboard (See Figure 13) detaches
and can be stored after programming and calibration is complete. To use
the keyboard, proceed as follows;
Figure 14. Basic Screens Layout
1. If the Control Point™ is on, turn the power off and then
connect the keyboard to the console harness connector (See
Figure 1).
2. Place the MASTER Switch on the Switch Module in the OFF
position and then turn power back on.
Each time power is applied, the Operate Mode (F1) comes up and
normal system operation can be performed. However, the remaining functions (F2 through F12) cannot be selected unless the
MASTER Switch is in the OFF position.
3. Examine the keyboard layout and the twelve functions keys
(F-keys).
The decal immediately above the Function Keys, F1 through F12,
identifies each function. Pressing any F-key immediately enters and
displays that function. Transferring to another function is as simple
as pressing another F-key.
4. Examine the display for several functions (See Figure 14).
a. Function screen (top level) – Each screen lists items with
numbers to the left side (except F8). Pressing the indicated key
number displays that screen, usually one with parameters for
editing.
b. Parameter screens (second level) – An index arrow appears
to the left of the first item and an underscore beneath the first
digit of that parameter.
c. Editing a parameter – The up and down arrow keys move the
index arrow to other parameters for editing. To change the
selected parameter, key in the desired value. When finished,
press the ENTER key to accept the new value and advance the
index arrow to the next line. Failing to use the ENTER key
(except for YES/NO and serial port configurations) loses the
new value.
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d. Other keys – The Backspace key erases incorrectly keyed
numbers or text. To restore a previous values after keying in a
new number, press either arrow key instead of ENTER.
Invalid keystrokes are not accepted for entry and cause an
audible warning.
Pressing the Esc key returns to the previous screen. Pressing
any function key (F1 through F12) transfers directly to that
function.
e. Screen prompts – If ”MORE...” appears on a screen, additional parameters are on an extended screen. Access this
screen by moving the index arrow to the “MORE...” line (See
Figure 24).
5. Programming system from the keyboard.
Begin with the following paragraphs for programming procedures
of each function and explanations of screen parameters. All
programming steps should be performed in the order given to
ensure proper entries for all parameters. The MASTER Switch
must be OFF before functions can be selected with the keyboard.
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Figure 15. Displaying Miscellaneous Menu Selections
USING THE MISCELLANEOUS MENU (F12)
Before channel programming begins, a few basic settings require attention. With system on and keyboard connected, proceed as follows:
1. Press F12 to view the MISC Menu (See Figure 15).
This screen displays six subjects. Each subject is accessed with the
number key indicated in front of the item.
2. From MISC MENU, select BLAST SETUP (1) (See Figure 16).
Two values require editing; length of blast time and minimum
ground speed.
BLAST TIMER – Determines the length of the BLAST cycle (0 to
99 seconds). When set to zero (0), the blast cycle lasts only as long
as the BLAST button is pressed.
Figure 16. Verifying BLAST
SETUP Menu Adjustments
BLAST SPEED – Establishes an artificial vehicle ground speed
for computing the rate materials dispenses during blasting when
the vehicle is standing still or moving very slowly. For speeds
faster than this value, the actual vehicle ground speed determines
the spread rate.
When the BLAST SPEED is set to zero, blasting cannot be
initiated with the vehicle stopped. The blast APR is programmed
from the material application rate functions (F1, F4).
3. Select F12 to return to the MISC MENU and select TIME/
DATE (2). (See Figure 17).
Verify or correct the following settings;
Figure 17. Setting Time and
Date
a. 24 HOUR – Select YES for 24 hour time; NO for
standard
12 hour time.
b. HOUR – Enter the correct hour.
c. MINUTES – Enter the correct minutes.
d. AM/PM – Enter A for AM or P for PM (This selection
does not appear for 24 hour time).
e. MONTH – Enter the correct numerical month.
f. DAY – Enter the correct day of the month.
g. YEAR – Enter the last two digits of the year.
4. Select F12 to return to the MISC MENU and select SYSTEM
UNITS (3) (See Figure 18).
This screen allows displaying either ENGLISH or METRIC units.
Changing causes parameter values on all screens to immediately
convert to the equivalent numerical values.
a. Select either Y(YES) or N(NO). Y changes units to metric; N
retains the units in English.
b. After selecting English or Metric, select units of measure from
the remaining list. Choices are in miles, miles-feet, square feet,
or square yards. If Metric, choices are in kilometers, kilometersmeter, and square meter. This list only allows one selection.
Pressing the ENTER key is not necessary to accept the choice.
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Figure 18. Setting up System
Units
5. Select F12 to return to the MISC Menu and select SERIAL
PORT CONFIGURATION using the 4 key. (See Figure 19).
This menu allows setting of the serial port for communicating with
other devices. Values must match the serial data format of the other
serial devices. The Esc key accepts the values instead of the ENTER
key. The pre-programmed values are appropriate for use with other
Dj equipment and software.
a. Press 1 for the BAUD RATE SELECT screen. Use the up/down
arrow keys to change the baud rate. Press Esc key when finished.
b. Press 2 for the DATA BIT SELECT screen. Use the up/down
arrow keys to change the data bits to be used. Press Esc key when
finished.
c. Press 3 for the PARITY SELECT screen. Use the up/down arrow
keys to change the data bits to be used. Press Esc key when
finished.
Figure 19. Configuring RS-232
port
6. Select F12 to return to the MISC Menu and select the
CHANGE LANGUAGE/KEYBOARD screen with the 5 key
(See Figure 20).
This menu allows selecting the language for displaying text and the
keyboard for entering constants.
Figure 20. Choosing Displayed
a. Select a language and keyLanguage and Keyboard
board from the screen. Key in
Y (YES) to display French (or
other), NO to display English.
The system displays English
and one other language,
usually French Canadian.
Contact DICKEY-john for
available alternative languages.
b. Select KEYBOARD from the
screen. N (NO) selects an
English keyboard, Y (YES)
selects French.
7. Select F12 to return to the
MISC Menu and select the
SERVICE MENU screen with
the 6 key (See Figure 21).
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Figure 21. Viewing the SERVICE
MENU Items
This menu is not intended for general customer use but for ice
personnel to incorporate future product enhancements, troubleshooting, and to identify the currently installed software version.
a. UPDATE SOFTWARE – Used by qualified personnel to
install new software or updates.
b. DISPLAY SOFTWARE VERSION – Displays the currently
installed software version.
c. SYSTEM RESET – Can be used to return all parameters to
factory setting. This is useful in starting over when the present
settings become uncertain or confused.
d. SYS RESPONS – Displays System Response data which is
useful for troubleshooting. This screen can be viewed but not
changed.
ACCESSING THE OPERATE MODE (F1)
F1 accesses the OPERATE screens anytime during programming to
verify selections. No programming parameters are available from this
screen. The following information is a brief outline of the Operate mode
screens. For full details, see Chapter 2.
a. OPERATE screen – Shows programmed values ready for
spreading product in a normal fashion with keyboard connected.
b. MATERIAL/MANUAL SPEED SELECT screen – A dual
screen showing only items configured. The MATERIAL
SELECT half displays if more than one granular and/or liquid
products are enabled in the Granular (F2) and Liquid (F4)
Application Rate functions. The MANUAL SPEED SELECT
appears if MANUAL DRIVER is programmed YES in the
Ground Speed Configuration function (F7, selection 1).
c. CURRENT TOTALS screen – Shows totals accumulated for
each product dispensed since the last reset (See Accumulator
Function - F9). These totals are those products selected on the
Material/Manual Speed Select Screen. To see other totals,
select those products from that screen.
d. SEASON TOTALS screen – Shows the amount of material
applied, miles traveled during application, and hours elapsed
this season for each product in both the AUTO and BLAST
modes. The season totals can only be cleared from the Accumulator Function (F9).
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SETTING UP GRANULAR CONFIGURATION (F3)
Figure 22. Configuring the
Granular Channel
Configuration parameters specify types of actuators and sensors used
and related performance specifications. To prepare for system calibration, the granular configuration parameters for each granular material
used must be verified or programmed. These parameters do not change
unless system hardware changes or related calibration routines are
rerun.
1. From the keyboard, press Function key F3 to obtain the
GRANULAR CONFIG screen (See Figure 22).
Four (4) granular products names appear with each followed by
the word ENABLED or DISABLED. Products are enabled/
disabled from the GRANULAR APPL RATE (F2) screen.
2. Select a material using the corresponding number key.
See Figure 22.
3. Edit the parameters on the screen.
Check each following item for a desired setting.
a. SPR CON (Spreader Constant) – Represents the number of
pulses generated by the application rate sensor per pound of
material (P/LB) discharged from the spreader.
The spreader constant differs for each granular material,
spreader vehicle, and gate height setting. If the spreader
constant is known, keyboard enter the value so that running
the GRANULAR CALIBRATION routine for this material is
unnecessary. If the spreader constant is unknown, leave the
displayed value. The correct value is automatically corrected
later, during GRANULAR CALIBRATION.
b. SRVO DRV (Servo/Proportional Drive) – Identifies the valve
type installed in the granular channel. For a servo-controlled
valve, key in Y (YES). For a proportional valve, answer N
(NO).
c. DRV FREQ (Drive Frequency) – Represents the valve
manufacturer’s suggested drive frequency, as shown on the
valve specification sheet. The rated drive frequency for the
DICKEY-john servo valve is 100 Hz.
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OPERATOR'S MANUAL
Note: The following configuration constants (PWM OFFSET, PWM SAT,
SYS RSPNS, VALV BOOST, and AFILTR) are for descriptive purposes
only. The correct parameters automatically calculate during GRANULAR
SYSTEM RESPONSE calibration. Factory defaults shown at this time are
adequate until calibration is run. These values can be adjusted any time to
fine tuning system performance.
d. PWM OFFSET – Identifies the minimum amount of PWM
valve drive required to start the granular mechanism moving.
e. PWM SAT (PWM Saturation) – Identifies the amount of drive
the granular valve system requires to operate a PWM valve at full
speed. This value is not displayed when SRVO DRV is set to
YES.
f. SYS RSPNS (System Response) – Adjusts the control system
response time to the hydraulic and mechanical systems of the
granular control channel on each particular spreader vehicle.
g. VALV BOOST (Valve Boost)– Increases the amount of system
response initially applied to the granular control to reach final
operating speed as quickly as possible.
h. AFILT (A Filter) – Filters the feedback signal to minimizes effects
of electrical noise and mechanical vibrations. The smaller the
number the greater degree of filtering.
4. Press F3 to return to the GRANULAR CONFIG screen (See
Figure 22).
If using other granular materials with known SPR CON (spreader
constant), enter those values now.
Note: The system drives only one type of granular mechanism.
Variables (SERV DRV, DRV FREQ, etc.) for all four materials
remain the same except for the SPR CON.
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OPERATOR'S MANUAL
PROGRAMMING GRANULAR APPLICATION
RATES (F2)
Figure 23. Setting up Granular
Application Rates (Step Method)
The APPLICATION RATE menu lists four granular materials. Each
material screen contains a set of values for product application rate, APR
steps, min/max limits, and blast rate. The pre-programmed values are
usually the same for all granular materials but may be edited and
modified as required.
1. From the keyboard, press Function key F2 to obtain the
GRANULAR APPLICATION RATES screen (See Figure 23).
Four (4) granular product names appear, each followed by the
word ENABLED or DISABLED (See Step 3).
2. Select a material using the corresponding number key.
See Figure 23.
3. Edit the parameters on the screen.
Check each following item for the desired setting.
a. ENABLE - When enabled, the material appears on the MATERIAL/MANUAL SPEED SELECT screen of the Operate
mode for selecting. Enter Y for YES (enabled), N for NO
(disabled).
At least one granular material must be enabled. All products
can be programmed (and calibrated) now and selected from the
Operate mode later.
b. STEP METHD - Y (YES) selects the Step method or N (NO)
the Rate method to specify application rates (APRs). Since each
method performs essentially the same function, the choice
becomes a personal preference. However, the parameters for
each method are different and all items below change with the
selection (See Figure 24 for Rate Method screens).
Changing from one APR method to the other for any material
automatically clears all previous rates from that method.
The STEP method permits the APR to be changed by a fixed
increment using the “+/–” switch on the Switch Module. The
RATE method allows programming of up to ten (10) different
APRs - RATE 1 through RATE 10. If less than ten rates are
chosen, enter a zero (0) for each rate following the last one
programmed. The initial rate displayed in the OPERATE
mode is RATE 1. Other rates are selected by pressing the “+/–
” switch on the Switch Module.
c. APP START (Step method) – Defines the APR starting point.
d. IC/DC STP (Step method) - Sets the increase/decrease step
value.
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OPERATOR'S MANUAL
Figure 24. Setting up Granular
Application Rates (Rate Method)
e. MIN APP (Step method) – Defines the minimum APR limit for
the product.
f. MAX APP (Step method) – Defines the maximum APR limit for
the product.
g. RATE 1 through RATE 10 (RATE METHOD) – Defines up to
ten individual APR rates.
h. BLAST RATE (Step or Rate method) – Defines a higher than
normal, spot-application rate applied when the red BLAST button
is pressed.
i. CHNL LBL (Channel Label) (Step or Rate method) – Any
product material name of up to nine (9) characters can be keyed
in. Pressing the ENTER key stores the name for display on all
granular screens including the OPERATE screen wherever that
material appears.
4. Press F2 to return to the GRANULAR APPL RATE screen
(See Figure 23).
If other granular materials require programming, repeat the above
procedures for those materials.
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OPERATOR'S MANUAL
SETTING UP LIQUID CONFIGURATION (F5)
Figure 25. Configuring Liquid
Channel for PREWET YES/NO
Configuration parameters specify types of actuators and sensors used
including performance specifications. To prepare for system calibration,
the liquid configuration parameters for each liquid material used must be
verified or programmed. These parameters do not change unless system
hardware changes or related calibration routines are rerun.
1. From the keyboard, press Function key F5 to obtain the
LIQUID CONFIG screen (See Figure 25).
Four (4) liquid materials names appear each followed by the word
ENABLED or DISABLED. Products are enabled/disabled from the
LIQUID APPL RATE screen (F4).
2. Select a material using the corresponding number key.
See Figure 25.
3. Edit the parameters on the screen.
Check each following item the desired setting.
a. PRE WET - If spraying with the pre-wet spray bar, enter Y
(YES). If used with the anti-icing boom, enter N (NO).
b. K-FACTOR (Flowmeter Constant) - Represents the number of
flowmeter pulses generated per gallon (P/GAL) of dispersed
liquid (for pre-wet and anti-icing liquids).
The K-FACTOR number stamped on the flowmeter body is
sufficiently accurate for keyboard entry if the viscosity of the
liquid is near that of water.
If the flowmeter constant is unknown, leave the displayed default
value shown. A corrected value automatically calculates and
enters during LIQUID CALIBRATION.
c. PRESSURE - N (NO) indicates a pressure transducer is not used.
Y (YES) indicates a pressure transducer is present and additional
items appear on the menu (See items k through p below and
Figure 26).
d. SRVO DRV (Servo/Proportional) - If using a servo drive, press
Y (YES). For a proportional valve, answer N (NO).
e DRV FREQ (Drive Frequency) - Represents the valve manufacturer’s suggested drive frequency, as shown on the valve specification sheet. The rated drive frequency for the DICKEY-john servo
valve is 100 Hz.
f. PWM OFFSET - Represents the valve operating range starting
point (position flowmeter begins generating pulses). This constant
automatically calculates and enters during a LIQUID SYSTEM
RESPONSE routine (F11-2 and F11-3) or can be keyboard
entered. Anti-icing boom liquids may have a different offset
constant than pre-wet bar liquids because of different plumbing
components.
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OPERATOR'S MANUAL
Figure 26. Configuring Liquid
Channel for PRESSURE
g. PWM SAT (Proportional valve only) - Represent the end point
of the valve operating range (maximum flowmeter pulse frequency). The value calculates automatically during the LIQUID
SYSTEM RESPONSE routines or can be keyboard entered.
Liquids dispensed form the anti-icing boom may have different
constants than those from the pre-wet bar because of different
plumbing components.
h. SYS RSPNS (System Response) - Adjusts the control system
response time to the hydraulic and mechanical systems of the of
the liquid control channel for each particular spreader vehicle.
The value calculates automatically during calibration routines but
can be fine-tuned anytime for optimum performance by keyboard
entry.
i. VALV BOOST (Valve Boost) - Increases the amount of system
response initially applied to reach final operating speed as quickly
as possible.
j. AFILT (A Filter) - Filters the feedback signal to minimizes effects
of electrical noise and mechanical vibrations. The smaller the
number the greater degree of filtering.
k. DENSITY - Represents the relative density of the material being
applied. The number used is the approximate weight of one
liquid gallon.
l. PRES OFFSET - Output voltage of pressure transducer for zero
output flow which is normally set automatically during calibration.
m. MAX PRESS - Maximum pressure on the system before the
alarm sounds.
n. MAX VOLT - Maximum output voltage driving the pressure
transducer. The correct number is in the transducer literature.
o. NZLE CNST (Nozzle Constant) - Represents the number of
gallons per minute passing through a nozzle.
p. NZLE PRES (Nozzle Pressure) - Represent nominal operating
pressure for the installed nozzles. The correct number is found
either on the nozzle or in the nozzle literature.
4. Press F5 to return to the LIQUID CONFIGURATION screen.
If other liquid materials require programming, repeat the above
procedures for those materials. All pre-wet liquids should be programmed first to avoid confusion.
5. If the anti-icing booms require configuration, select the 5 key
from the LIQUID CONFIGURATION screen.
The screen appearing shows five boom sections for selecting (See
Figure 27).
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CONTROL POINT™
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OPERATOR'S MANUAL
Figure 27. Configuring Boom
Sections of Liquid Channel
6. Select a boom section and press a key number for the desired
SECTION CONFIGURATION screen (See Figure 27).
The parameters for this screen are as follows:
a. SECTN ENBLED (Section Enabled) - Enter Y (YES) to enable
the boom section, N (NO) to disable.
b. 12V On - Entering Y (YES) indicates +12 volts activates the
section solenoid. N(NO) means grounding activates the section
solenoid.
c. NUM OF NZZLS (Number of Nozzles) - Enter the number of
nozzles in the boom section.
d. NZZLE SPCNG (Nozzle Spacing) - Enter the distance between
nozzles.
e. BOOM INPUT - This parameter only appears for Section 5.
Entering N (NO) enables the boom to sense the position setting of
a Pre-wet/Anti-ice switch.
If the boom has been enabled to sense the position of a Pre-wet/
Anti-ice Switch, the Liquid channel (while in the OPERATE
mode) automatically switches between Liquid 1 (Pre-Wet) and
Liquid 2 (Anti-ice) to avoid having to use the Material Select
Screen to make the change.
To use the Pre-wet/Anti-icing auto switch input feature, SECTION 5/AUTO ANTI-ICING configuration must be set as
follows:
Section Enabled NO
Boom Input
CONTROL POINT™
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OPERATOR'S MANUAL
PROGRAMMING LIQUID APPLICATION RATES (F4)
The APPLICATION RATE screens lists four liquid materials. Each material
screen contains a set of values for product application rate, APR steps, min/
max limits, and blast rate. The pre-programmed values for these parameters
are usually the same for all liquid pre-wet materials and the same for all
liquid anti-icing materials. Each screen should be edited and modified as
required. Note: F5 should be used to select between pre-wet and anti-ice for
the liquid before proceeding.
Figure 28. Setting Up Liquid
Application Rates (Step Method)
1. From the keyboard, press F4 to obtain the LIQUID APPLICATION RATES screen (See Figure 28).
Four (4) liquid product names are shown, each followed by the word
ENABLED or DISABLED (See Step 3).
2. Select a material using the corresponding number key.
(See Figure 28).
3. Edit the parameters on the selected screen.
Check each following item for desired settings.
a. ENABLE - When enabled, the material appears on the MATERIAL/MANUAL SPEED SELECT screen in the Operate mode to
allow selecting for use. Enter Y for YES (enabled), N for NO
(disabled).
At least one liquid product must be enabled. All products can be
programmed (and calibrated) now and enabled later.
b. STEP METHD - Y (YES) selects the Step method or N (NO) the
Rate method to specify application rates (APRs). Since each
method performs essentially the same function, the choice becomes
a personal preference. However, the parameters for each method
are different and all items below change with the selection (See
Figure 29 for Rate Method screen).
Changing from one APR method to the other for any material
automatically clears all previous rates from that method.
The STEP method permits the APR to be changed by a fixed
increment using the “+/–” switch on the Switch Module. The
RATE method allows programming of up to ten (10) different
APRs - RATE 1 through RATE 10. If less than ten rates are chosen,
enter a zero (0) for each rate following the last one programmed.
The initial rate displayed in the OPERATE mode is RATE 1.
Other rates are selected by pressing the “+/–” switch on the Switch
Module.
c. APP START (Step method) – Defines the start-point APR.
d. IC/DC STP (Step method) - Sets the increase/decrease step value.
e. MIN APP (Step method) – Defines the minimum APR limit for
the product.
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OPERATOR'S MANUAL
Figure 29. Setting Up Liquid
Application Rates (Rate Method)
f. MAX APP (Step method) – Defines the maximum APR limit
for the product.
g. RATE 1 through RATE 10 (Rate Method) – Defines up to ten
individual APR rates.
h. BLAST RATE (Step or Rate method) – Defines a higher than
normal, spot-application rate applied when the red BLAST
button is pressed.
i. CHNL LBL (Channel Label) (Step or Rate method) – Any
product material name of up to nine (9) characters can be keyed
in. Pressing the ENTER key stores the name for display on all
granular screens including the OPERATE screen wherever that
material appears .
4. Press F4 to return to the LIQUID APPL RATE screen (See
Figure 28).
If other liquid materials require programming, repeat the above
procedures for those materials.
Note: All liquid parameters definitions are the same as granular except
APR measurements are in GAL/TON. If the liquid channel is anti-ice,
APR units are GAL/MILE instead.
USING THE CALIBRATION MENU (F6)
Calibration is discussed in the next Chapter. All calibration constants not
entered in this Chapter during PROGRAMMING must be determined by
performing the related calibrations in the next chapter.
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CONFIGURING GROUND SPEED (F7)
Figure 30. Configuring Ground
Speed Sensors
1. From the keyboard, select Function key F7 to obtain the
GROUND SPEED screen (See Figure 30).
2. Press 2 to display the GROUND SPEED screen.
3. Edit the parameters on the screen.
a. MAX SPEED - Indicates the maximum speed the operator can
drive in the AUTO mode before a "MAX SPEED EXCEEDED"
warning appears and the alarm sounds. The value entered is
arbitrary based upon knowledge of the highest speed giving
acceptable system performance. If a zero (0) is entered, the
function is disabled.
b. MANUAL ON - If the ground speed sensor becomes damaged,
an internally-generated ground speed signal can be substituted
temporarily to continue operation. The artificial ground speed
signal activates by entering Y (YES). This signal is also useful for
testing, troubleshooting, or calibrating the vehicle while stationary.
c. MANUAL DRIVER - Y (YES) enables the operator to activate the
manual speed mode by adding MANUAL SPEED selection to the
bottom of the MATERIAL/MANUAL SPEED SELECT screen.
N (NO) removes the choice.
d. MANUAL SPEED - Represents the ground speed in miles per
hour (MPH) to be simulated with an artificial, internally-generated signal. The operator must attempt to maintain vehicle speed
near this MANUAL SPEED value to ensure materials are spread
near the target APR.
e. START UP - Represents the speed the system begins using
ground speed sensor pulses. Until this threshold is crossed, the
STARTUP ground speed signal is used.
f. 2 AXLES - If the vehicle is equipped with a two-speed axle,
enter Y (YES). Doing so causes two CONSTANTS to appear at
the bottom of the screen.
g. CONSTANT (CONSTANT 1 & CONSTANT 2) - Defines the
number of pulses received from the ground speed sensor per
mile of travel. If known, this constant can be keyboard entered.
If unknown, the value automatically calculates during
GROUND SPEED CALIBRATION. Those vehicles equipped
with a two-speed axle require two constants, CONSTANT 1 and
CONSTANT 2. Depending upon axle-shifter polarity, CONSTANT 1 may be either the Lo-speed axle or the Hi-speed axle.
30/KEYBOARD PROGRAMMING
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OPERATOR'S MANUAL
CONFIGURING THE SPINNER CHANNEL (F8)
Configuration parameters specify actuators and sensors used along with
performance specifications. These values do not change unless the system
hardware changes or the related calibration routines are rerun.
Figure 31. Configuring Spinner
Channel
1. From the keyboard, press F8 to obtain the SPINNER CONFIGURATION screen (See Figure 31).
2. Edit the parameters on the screen.
a. SRVO DRV (Servo/Proportional Drive) - Y (YES) indicates a
servo-controlled valve, N (NO) indicates a proportional valve.
b. UNLOAD - YES enables or NO disables the spinner during
unloading.
c. NO GND SPD - YES enables spinner operation when ground
speed is zero; NO disables at zero speed.
d. DRV FREQ (Drive Frequency) - Represents the valve manufacturer’s suggested drive frequency, as shown on the valve specification sheet. The rated drive frequency for the DICKEY-john
servo valve is 100 Hz.
e. PULSE FDBK (Pulse Feedback) - YES indicates a pulsed
feedback sensor for closed loop control. NO indicates an open
loop control.
f. SPIN CON (Spinner Constant) - Represents the number of
spinner feedback pulses per revolution. This selection appears
only if pulse feedback is selected (YES).
g. BLST RATE (Blast Rate) - If set to 0%, the SPREAD WIDTH
ADJUST knob position determines the spinner speed. Other
values indicate the percentage of maximum spinner speed,
regardless of knob setting.
h. SYS RSPNS (System Response) - Adjusts the control system
response time to the hydraulic and mechanical systems for a
particular spreader vehicle.
i. VALV BOOST (Valve Boost)– Increases the system gain initially
applied to the control channel to reach final operating speed
(target APR) as quickly as possible.
j. AFILT (A Filter) – Minimizes the effects of electrical noise and
mechanical vibrations on the feedback signal. The smaller the
number the greater the degree of filtering. The value can be
manually fine tuned for best results.
k. PWM OFFSET – Defines valve operating starting point.
l. PWM SAT – Defines valve operating end point (maximum
position). PWM OFFSET and PWM SAT are manually set for
proportional valves. The Proportional Valve Spinner Procedure
determines the actual values (See Chapter 4).
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MONITORING/RESETTING ACCUMULATORS (F9)
Figure 32. Accessing and
Resetting the Accumulators
Accumulators store current run and season run totals of distance traveled, material amount, and time spent spreading materials in both the
AUTO and BLAST modes. Separate totals are accumulated for each
material. All of the current and season accumulators can be cleared
(zeroed) from this mode (F9).
1. From the keyboard, press Function key F9 to display the
ACCUMULATORS screen (See Figure 32).
Three selections appear - GRANULAR, LIQUID and ENABLE/
DISABLE CLR FROM CURRENT TOTALS SCREEN.
2. Press 1 for GRANULAR or 2 for LIQUID to monitor the
accumulators for corresponding materials. Press 3 to enable/
disable the clearing of the CURRENT TOTALS screen in the
Operate mode.
When pressing either the 1 or 2 key, four materials display for
monitoring.
If pressing the 3 key, skip to Step 6.
3. If GRANULAR or LIQUID is selected from Step 2 above,
select the material by pressing the corresponding key.
A divided screen appears showing CURRENT totals (top half) and
SEASON totals (bottom half).
4. To clear CURRENT totals, press C. To clear both CURRENT
and SEASON totals, press S.
The season totals cannot be cleared separately.
5. To clear accumulators for other materials, press F9 to return
to the ACCUMULATOR screen and select the next material.
Continue as before to clear the totals.
6. To enable clearing the CURRENT TOTALS screen in the
OPERATE mode, press F9 to return to the ACCUMULATORS screen and then the 3 key to select the ENABLE/
DISABLE CLR FROM CURRENT TOTALS SCREEN (See
Figure 32).
The question asks if a change from the existing status (enable or
disable) is desired. YES causes the ENABLE/DISABLE CLEAR
selection to alternate. A setting of NO leaves the ENABLE/DISABLE CLEAR status unchanged.
32/KEYBOARD PROGRAMMING
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OPERATOR'S MANUAL
READING SYSTEM INFORMATION (F10)
Figure 33. Accessing System
Information
1. From the keyboard, press F10 to display the SYSTEM INFORMATION screen (See Figure 33).
The five items display - ALARM HISTORY, SYSTEM TOTALS,
ON/OFF HISTORY, RATE CHANGE HISTORY and TRUCK
ID.
2. Select and press the corresponding number key to view the
related screen.
3. Review the information of each screen.
a. ALARM HISTORY - Records all alarms encountered by the
system including the time and date of each occurrence with a brief
alarm description. A maximum of the latest 100 error events are
logged with the oldest ones dropping out as new ones occur. The
up/down arrow keys scroll the events for viewing.
b. SYSTEM TOTALS - Displays time and distance totals for all
materials combined. Totals display for three categories - AUTO,
BLAST, and VEHICLE. These totals are ongoing and cannot be
reset.
c. ON/OFF HISTORY - Lists each occurrence for power on,
power off, manual speed, MASTER Switch module on/off, and
channel on/off with time and date for each event. A maximum of
the latest 100 events are logged with the oldest events dropping
out as new events occur. The up/down arrow keys scroll the
events for viewing and the bottom line of the screen indicates the
group of events displaying.
d. RATE CHANGE HISTORY - Records each occurrence with
time and date of target application rate (APR) changes. A maximum of the latest 100 events are logged with the oldest dropping
out as new ones occur. The up/down arrow keys scroll the events
for viewing.
e. TRUCK ID - This screen allows entering an identifying name for
the truck which can be changed at anytime. The entry is changed
by typing the new name and then pressing the ENTER key to
accept the change.
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OPERATOR'S MANUAL
PERFORMING SYSTEM RESPONSE (F11)
After all configuration constants have been entered for a given vehicle,
the SYSTEM RESPONSE must be performed in preparation for spreading
materials (See Chapter 4).
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OPERATOR'S MANUAL
CHAPTER 4 – SYSTEM CALIBRATION
Due to the many combinations of hydraulic/liquid pumps, valves and motors
plus the different material delivery systems, each spreader truck becomes
unique. System calibration defines the spreader configuration characteristics
for optimum accuracy of the Control Point system. Performing the following
procedures in the order outlined ensures the greatest accuracy when finished.
RECORDING CALIBRATION DATA
After finishing each routine, record the calibration constant on the CALIBRATION DATA RECORD sheets at the rear of this manual. If console replacement becomes necessary, most system parameters can be quickly transferred to
the new unit via keyboard entry. If additional sheets are required, make copies
and keep them with this manual.
REPEATING CALIBRATION RUNS
To minimize operator and other procedural errors, most tests should be
repeated several times (three times), average the results, and keyboard enter
the constants. The SYSTEM RESPONSE CALIBRATION does not require
repeating.
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OPERATOR'S MANUAL
CALIBRATING GROUND SPEED (F7-1)
Figure 34. Ground Speed
Calibration, Single Speed Axle
Ground speed calibration establishes a ground speed constant(s) for the vehicle.
The constant is determined by counting the number of ground speed sensor
pulses generated in a distance of one (1) mile. For those vehicles having a twospeed axles, two ground speed constants must be determined, CONSTANT 1
and CONSTANT 2.
To determine a correct constant, proceed as follows:
1. Accurately measure one mile, plainly marking the start and
finish points.
Markers should be plainly visible from the cab while driving past.
Alternatively, two highway mileage markers may be used.
2. Press F7 and then the 1 key to obtain the GROUND SPEED
CALIBRATION screen (See Figure 34).
The screen appearing allows keyboard entry of the ground speed
constant, if the correct value is known. To enter a number, key in the
value and press ENTER. If ENTER is not pressed, a prompt screen
appears asking for a Y (YES) or N (NO) before proceeding. To
calculate the constant, proceed to the next step.
3. Drive up to the start of the course at a minimum speed of
5 MPH (8 Km/hr). When exactly even with the start marker,
press “S” on the keyboard as prompted. (See Figure 34).
The number on the screen resets to zero (0) and begins counting up
as the vehicle is moving.
4. Continue driving at a speed typical of normal operation. At
the finish marker press “S” again to stop pulse counting.
The accumulated number on the screen is the new ground speed
constant.
Figure 35. Ground Speed
Calibration, Two Speed Axle
5. To ensure accuracy, repeat the calibration procedure three
times and average the results. Keyboard enter the average
value.
6. Record the GROUND SPEED CONSTANT on the CALIBRATION DATA RECORDS sheets at the rear of this manual.
On vehicles equipped with a 2-speed axle, the ground speed calibration procedure must be performed in both the Hi-speed and Lospeed axle settings (See Figure 35). The console automatically
detects when the axle ratio has been changed. To calibrate, simply
change the axle ratio and rerun.
Press the ESC key or any F key to leave the Calibration screen.
36/SYSTEM CALIBRATION
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OPERATOR'S MANUAL
CALIBRATION SYSTEM RESPONSE (F11)
Figure 36. System Response
Calibration Screens
These constants adjust the response time of the Control Point™ system to the
hydraulic and mechanical systems. This procedure determines the System
Response (SYS RSPNS) and related constants (VALV BOOST, PWM
OFFSET, PWM SAT, and AFILT) for each of the three control channels
(granular, liquid, and spinner).
Constants normally vary slightly each time a SYSTEM RESPONSE CALIBRATION is run. Manual fine-tuning for optimum performance is permissible (See paragraph "Fine-tuning System Response Parameters"). To maintain a performance history, always record new constants on the
CALIBRATION DATA RECORD sheets each time a routine is run or finetuned .
a. GRANULAR - During calibration, a set of values for SYS
RSPNS, VALV BOOST, PWM OFFSET, PWM SAT (servo
only), and AFILT automatically calculate, store, and display on
the GRANULAR CONFIGURATION screens for all (up to
four) granular materials.
b. LIQUID PR-WET - The pre-wet spray bar and anti-icing
boom liquids require separate procedures due to differences in
flowmeters, nozzles, and plumbing components. Calibration
establishes a similar set of parameters as above for all pre-wet
liquid materials.
c. LIQUID ANTI-ICING - Calibration establishes a similar set
of parameters as above for all anti-ice materials used on the
system.
d. SPINNER - Calibration determines the spinner channel
parameters and correlates the fully clockwise position of the
WIDTH ADJUST knob with the 100% mark on the SPREAD
WIDTH bar display.
The following procedure outlines GRANULAR SYSTEM RESPONSE
CALIBRATION. Liquid prewet and liquid anti-ice channels are very similar
and, therefore, not specifically described or shown.
1. Press F11 to obtain SYSTEM RSPN CALIBRATION menu.
Four choices display (See Figure 36).
2. Press 1 to select GRANULAR.
A warning screen states CALIBRATION WILL ACTIVATE
THE SELECTED CHANNEL when the test begins.
3. When ready to start, press “R” on the keyboard.
A screen appears to indicate CALIBRATING. When finished, a
screen appears stating SYS RSPNS DONE.
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OPERATOR'S MANUAL
4. When the calibration is complete, press the "C" key to continue as prompted at the bottom of the screen.
The resulting values automatically record in the proper locations.
Access the GRANULAR CONFIG Function (F3) and copy the
numbers to the CALIBRATION DATA RECORD SHEET in the
rear of the manual.
5. Repeat this procedure for the remaining control channels.
Multiple runs and averaging results are unnecessary. Liquid must
be primed before running a system response. The UNLOAD
feature can be used to prime the pump.
FINE TUNING SYSTEM RESPONSE CONSTANTS
The automatic System Response routines are not necessarily exact. Operators
may want the system to respond faster or slower than calculated by the automatic routines. These values can be adjusted slightly to tailor the response to
operator needs. It is important to note that automatic routines must always be
run prior to modification to establish basic values. The following are a few
general guidelines.
A. SYS RSPNS Constant
If the control system responds slowly to changes in speed and is slow to start,
the SYS RSPNS value should be increased. If the system is oscillating around
the target APR, the SYS RSPNS may be too large and should be decreased.
Excessive oscillation should be limited to ± 5% of the target APR to minimize
wear on both the PWM and servo valve actuators. Most systems can be tuned
by altering only this value.
B. VALV BOOST
This value increases SYS RSPNS only at start-up to more quickly start system
spreading. The value does not affect stability when operating at the target APR
and does not normally require changing.
C. AFILT
This value defines the amount of feedback noise rejection. The smaller the
number the greater the filtering. Noisy feedback sensors cause the APR's to
randomly jump around. Decreasing the AFILT may reduce the problem but
also causes the system to become more sluggish. Typically, this value does not
require changing but check the response time if fine tuning becomes necessary.
38/SYSTEM CALIBRATION
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OPERATOR'S MANUAL
Figure 37. Proportional Valve
Spinner Calibration Screens
CALIBRATING PROPORTIONAL VALVE SPINNER
(F8)
This calibration determines appropriate values for PWM OFFSET and PWM
SAT when using a proportional valve with no feedback sensor to drive the
spinner channel (See Figure 37).
1. With the spinner WIDTH ADJUST knob fully counterclockwise (CCW), verify the spinner is not rotating.
These checks must be performed in the Operate mode. Rotate
spinner WIDTH ADJUST knob clockwise (CW) one position and
verify spinner rotates slowly. If it rotates too fast decrease OFFSET
by one (1). If it rotates too slowly increase OFFSET by one (1).
2. With the spinner WIDTH ADJUST knob fully clockwise
(CW), verify the spinner is running at full speed.
If it is rotating too slowly, increase the SAT value by one (1) and
recheck. Repeat as necessary. The maximum value for SAT is 100.
3. If the spinner turns too fast, decrease the SAT value until a
satisfactory maximum speed is obtained.
The SAT value must be greater than the OFFSET value.
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OPERATOR'S MANUAL
CALIBRATING GRANULAR MATERIALS (F6)
Figure 38. Granular Calibration
The GRANULAR CALIBRATION determines the spreader constant (SPR
CON) for a given granular material. The spreader constant is the number of
pulses generated by the application rate sensor per pound of granular material discharged. A separate calibration routine must be run for each granular
material used.
GRANULAR CALIBRATION (also referred to as a granular "catch test")
causes the control system to run the conveyor/auger mechanism, dispensing
material while the vehicle is stationary. When a sufficient amount of material
has been discharged, the operator stops the spreader mechanism, weighs the
material discharged, and keyboard enters the amount. The system then
calculates, stores, and displays the SPR CON. The procedural steps are as
follows:
1. Load the vehicle hopper with the desired material and
verify the gate height is adjusted to the proper setting.
Load enough material to provide a uniform flow throughout the
calibration procedure.
2. Position a suitable container or drop cloth to catch all
dispensed material from the conveyor/auger.
The container must be large enough to obtain a good, representative sample. The larger the sample weighed, the better the accuracy. Alternatively, if a vehicle scale is available, weigh the truck
before and after dispensing material.
3. Press Function key F6 to access the CALIBRATION MENU
screen (See Figure 38). Press the 1 key to select GRANULAR CALIBRATION.
4. Select the granular material for calibration (keys 1 - 4).
The words ENABLED and DISABLED after the selected product
have no significance to the calibration. Figure 38 illustrates the
SALT CALIBRATION selection. Other selections are equivalent.
A warning message displays stating STARTING THIS PROCEDURE WILL CAUSE MATERIAL TO DISPENSE. Ensure all
personnel are clear before starting the next step.
5. With the vehicle stationary, engage the hydraulic system.
Increase engine RPMs to normal operating range.
6. Press “R” on the keyboard to run the conveyor/auger and
start the calibration.
Press the granular channel “+/-” switch on the Switch Module, as
required, to obtain a normal discharge rate. The number in the
middle of the screen shows the counts accumulating from the APR
sensor.
40/SYSTEM CALIBRATION
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OPERATOR'S MANUAL
7. When a sufficient amount of material has been dispensed,
press “S” to stop the system.
A screen appears showing the previous SPR CON and the sensor
COUNTS accumulated during the current run. The screen asks for
an entry of pounds before proceeding. Perform the next step while
the screen waits for the results.
8. If using a vehicle scale, reweigh the truck and calculate the
amount of material dispensed in pounds.
9. Enter that number into the console and press ENTER. Press
“D” when finished.
The spreader constant (SPR CON) is now stored and displayed on
the SALT CALIBRATION screen and on the GRANULAR
CONFIGURATION screen for this material.
10. For maximum accuracy, repeat the entire procedure at least
three times.
Temporarily write down the resulting SPR CON each time. Average the results and keyboard enter the average as the final SPR
CON. Then record the SPR CON for this material on the CALIBRATION DATA RECORDS sheets at the rear of this manual.
11. Repeat this procedure for each granular material used.
FINE-TUNING THE GRANULAR CALIBRATION
If small but consistent application rate errors are observed over a period of
time, the spreader constant can be modified to fine-tune application accuracy.
See Appendix A, Item 1 for steps required to calculate the new spreader
constant, which is then keyboard entered on the (F3) GRANULAR CONFIGURATION screen. Alternatively, the GRANULAR CALIBRATION
routine can be repeated to correct this type of APR error.
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OPERATOR'S MANUAL
CALIBRATING LIQUID MATERIALS (F6)
Figure 39. Liquid Calibration
The LIQUID CALIBRATION determines a flowmeter constant (K-FACTOR) or nozzle constant (pressure based system) for each liquid material
used. The K-FACTOR represents the number of pulses generated by the
flowmeter per gallon of liquid dispensed. The NZLE CNST is a measure of
flow rate through the nozzle at a standard pressure. Separate calibrations are
necessary for each liquid material because of viscosity differences.
The LIQUID CALIBRATION routine (also referred to as a liquid "catch
test") causes the control system to run the liquid pump, dispensing material
while the vehicle is stationary. When a sufficient amount of liquid has been
discharged, the operator stops the system, weighs the discharged liquid, and
keyboard enters the amount. The system then calculates, stores, and displays
the K-FACTOR (NZLE CNST). The procedural steps are as follows:
1. Load vehicle tank with the material.
2. Position a suitable container to catch all the material
dispensed through the liquid pump.
The container must be large enough to obtain a good, representative sample. The larger the sample weighed, the higher degree of
accuracy. When calibrating a pre-wet liquid material, the pre-wet
bar may be removed from its mounting and placed inside the
catch container. Alternatively, especially for flowmeter based
anti-ice liquid materials, temporarily disconnect an appropriate
hose and place inside the catch container.
3. Press Function key F6 to access the CALIBRATION MENU
screen. Press the 2 key to select LIQUID for the FLOWMETER CALIBRATION screen (See Figure 39).
4. Select the liquid material for calibration (key 1 - 4).
The words ENABLED and DISABLED after the selected product
have no significance to the calibration. Figure 39 illustrates the
LIQUID 1 CALIBRATION selection. Other selections are
equivalent.
A warning message displays stating STARTING THIS PROCEDURE WILL CAUSE MATERIAL TO DISPENSE. Ensure all
personnel are clear before starting the next step.
For pressure based anti-ice systems, it is necessary to enter a
target pressure. This should be the nozzle manufactures rating
pressure, typically 40 psi (2.75 bar).
Note: If running pressure, make sure booms are drained prior to
running “OFFSET”.
5. In the case only where the liquid channel is propelled by
the hydraulic system, start the engine, keeping the vehicle
stationary. Engage the hydraulic system, and increase
engine RPMs to normal operating range.
42/SYSTEM CALIBRATION
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OPERATOR'S MANUAL
6. Press “R” on the keyboard to run the liquid pump and start
the calibration routine.
For flowmeter based systems, use the liquid channel “+/-” switch on
the Switch Module, as necessary, to obtain an adequate discharge
rate. The number displayed indicates the accumulating count from
the APR sensor.
7. When a sufficient amount of liquid has been dispensed, press
“S” to stop.
For a flowmeter based system, a screen appears showing the
previous K-FACTOR and the sensor COUNTS accumulated during
the current run. For a pressure based system, the previous NZLE
CNST and collection time are displayed. The screen asks for an
entry of gallons before proceeding. Perform the next step while the
screen waits for the results.
8. Weigh the material caught and calculate the amount dispensed in gallons.
9. Enter that number into the console and press “ENTER”. Press
“D” when finished.
The flowmeter constant (K-FACTOR or NZLE CNST) is now
stored and displayed on this screen and on the LIQUID CONFIGURATION screen for this material.
10. For maximum accuracy, repeat the entire procedure at least
three times.
Temporarily write down the resulting K-FACTOR (NZLE CNST)
each time. Average the results and keyboard enter the average as
the final K-FACTOR (NZLE CNST). Then record the K-FACTOR
(NZLE CNST) for this material on the CALIBRATION DATA
RECORDS sheets at the rear of this manual.
11. Repeat this procedure for each liquid material used.
FINE-TUNING THE LIQUID CALIBRATION
If, after using a flowmeter or nozzle constant over a period of time, small but
consistent application rate errors are observed, its value can be manually
changed to fine-tune application accuracy. See Appendix A, Item 2 to calculate
the modified flowmeter constant, which is then keyboard entered on the
LIQUID CONFIGURATION (F5) screen. Alternatively, the LIQUID CALIBRATION routine can be repeated to correct this type of APR error.
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OPERATOR'S MANUAL
CALIBRATING SPINNER WIDTH (F6)
The spinner width calibrtation determines the spread width as indicated by the
spinner knob position for area based units (i.e. MILE-FEET, SQ FEET, SQ
YARD, KILOMETER-METER, and SQ METER). Area based units are
selected in the MISCiscellaneous menu (F12) under SYSTEM UNITS (Item 3).
Since vehicles vary, a multi-point calibration is necessary to assure accurate
spreading throughout the spinner knob range. Also, material densities vary
requiring a separate calibrations.
1. Load the vehicle with material.
2. Press Function key F6 to access the CALIBRATION MENU.
Press the 3 key to select SPINNER WIDTH.
3. Select a material for calibration (Items 1 through 4).
The words ENABLED and DISABLED after the selected product
has no significance to the calibration. Figure 40 illustrates SALT
CALIBRATION; other selections are equivalent.
4. Place the Spinner Knob at 0 and press R.
The spinner mechanism actives after pressing R. Placing the knob at
0 shuts the spinner off. This verifies the valve OFFSET value is
correct.
5. Rotate the Spread Width knob to 20. Measure and record the
width material is spread. Repeat at 40, 60, 80, and 100.
The arrow on the left side of the screen automatically follows the
Spread Width knob setting. The arrow position allows measured
widths to be entered into the proper location.
Figure 40. Spinner Width Calibration
6. Press S to stop the routine when finished.
MAINTAINING CALIBRATION ACCURACY
If a new material is added and the spreader, nozzle, or flowmeter constant is
not accurately known, the GRANULAR or LIQUID CALIBRATION routine
must be run. Also, if wear of the conveyor/auger mechanism, actuator valves,
flowmeter, nozzles, or other system components is suspected, a new catch test
(GRANULAR or LIQUID CALIBRATION) should be performed to reestablish APR accuracy.
After installing new or different tires, the GROUND SPEED CALIBRATION
should be repeated. Each known physical (mechanical) change in the system
should be followed immediately by a SYSTEM RESPONSE calibration on the
related control channel (granular, liquid pre-wet, liquid anti-ice, or spinner).
Repair or replacement of any system components, including hydraulic hoses,
fluid changes and even normal wear, make it necessary to periodically
recalibrate the system. Even without known changes, the SYSTEM RESPONSE CALIBRATIONS should be performed at minimum intervals of one
year. A good rule of thumb is to recalibrate all three control channels at the
start of each spreader season.
44/SYSTEM CALIBRATION
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OPERATOR'S MANUAL
CHAPTER 5 – SYSTEM INSTALLATION
These instructions describe the installation of the Control Point™ Console,
Switch Module, and system harness assemblies. The Console mounts on the
vehicle dashboard or other surface suitable for operator viewing using an Ubracket. The standard (combination) mounting plate secures the Switch
Module immediately to the left of the Console. An optional mounting plate
mounts the Console only.
The Switch Module cable, which plugs into the Console, is long enough to
allow the Switch Module to be placed near the vehicle seat or elsewhere for
operator convenience. If the combination mounting plate is used, the option
remains to later remove the Switch Module from the mounting plate and to
relocate it for convenience.
The system Main Harness, with an optional extension (Extension Harness), is
laid out and connections are made to the sensor and actuator cables, battery,
ignition switch, and additional options (two-speed axle, hopper level sensor,
and boom sense inputs), as required. First, verify all items in the appropriate
hardware mounting kit are present:
Standard Hardware Kit (46649-0380) for Console and Switch Module:
(1) Combination mounting plate (46649-0580)
(2) U-bracket (46649-0590)
(3) Two 1/4 - 20 x 1 inch hex bolts
(4) Five 1/4 inch split washers
(5) Two rubber washers (46390-0900)
(6) Two knob screws (20072-0022)
(7) Three 1/4 - 20 x 3/4 inch hex bolts
(8) Retaining clip (46649-0350)
(9) Two #6 self-locking hex nuts
(10) Three #6 plastite screws
Optional Hardware Kit (46649-0390) for Console only:
(1) Console mounting plate (46649-0370)
(2) U-bracket (46649-0590)
(3) Two 1/4 - 20 x 1 inch hex bolts
(4) Five 1/4 inch split washers
(5) Two rubber washers (46390-0900)
(6) Two knob screws (20072-0022)
(7) Three 1/4 - 20 x 3/4 hex bolts
(8) Retaining clip (46649-0350)
(9) Two #6 self-locking hex nuts
SELECTING THE CONSOLE LOCATION
The Console mounts inside the cab on any surface permitting easy readability
of the display without obstructing the operator’s view while driving (See Figure
41). Be sure the opposite side of the mounting surface chosen has clearance for
installing and tightening the mounting bolts. Remember, the combination
mounting plate positions the Switch Module to the left of the Console.
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OPERATOR'S MANUAL
MOUNTING THE U-BRACKET
Place the U-bracket in the exact location for mounting and mark both drill
holes with a pencil or scribe. If the Console is being mounted on the dash,
move and secure wiring and other obstructions located beneath the dash. Drill
two 9/32 inch holes. Position the U-bracket in place on the mounting surface and
insert the two 1 inch bolts. Install the lockwashers and nuts and tighten them.
INSTALLING CONSOLE AND SWITCH MODULE
Install the Console onto the mounting plate using three 3/4 inch bolts and
lockwashers. When using the combination mounting plate, install the Switch
Module onto the mounting plate using three plastite screws. Note that two sets
of holes exist in the mounting plate to allow for optional spacing between the
Switch Module and Console. If the Console (only) mounting plate is used,
install the Switch Module at the desired location. If placed on the vehicle seat, it
must be secured in a suitable manner (possibly using Velcro™ strips) to ensure
the control settings are not accidently changed or activated.
Figure 41. Console Mounting
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OPERATOR'S MANUAL
CONNECTING SWITCH MODULE TO CONSOLE
Plug the circular connector of the Switch Module cable into the rear of the
Console, rotating the connector collar fully-clockwise to lock it. Place the
keyboard mating connector (with its pins pointing upward) between the two
studs on the rear of the mounting plate. Capture this connector with the
retaining clip and two self-locking nuts. The 9-pin RS-232 connector can be
secured to the Switch Module cable with a cable tie, if desired. Figure 42
shows how the Switch Module cable connects to the Console and keyboard.
MOUNTING THE CONSOLE
Secure the Console and mounting plate (and Switch Module if the combination mounting plate is being used) to the U-bracket using the two knob
screws. The rubber washers fit between the U-bracket and the mounting plate
tabs. Pivot the Console for the best viewing angle and tighten the two knob
screws.
ROUTING AND CONNECTING THE HARNESSES
First, verify all required “exterior system cables” are installed on the spreader
vehicle according to their separate, individual instructions. These are defined
as the sensor, actuator, ground speed, boom sense, and hopper level cables.
Notes:
• Use dust caps provided on all
unused connectors, both
internal and external. This
includes keyboard and RS-232
connectors.
• Labels have been supplied in the
dust cap kit to be placed on
external extension cables routed
to the flowmeter, granular and
spinner sensors.
CAUTION: Make the Control Point™ battery connections last to
ensure no accidental shorts occur during harness handling.
Two harnessing alternatives exist, depending upon whether the exterior
system cable connectors need to be inside or outside the cab of the truck. If
they need to be outside, skip to the heading “Using the Extension Harness”.
Figure 43 shows the Main and Extension harnesses.
LAYING OUT THE MAIN HARNESS (46649-0480)
Plug the largest circular connector of the Main Harness into the Console,
rotating the connector collar fully-clockwise to lock it. Then route the harness
to a clean, safe area (inside the cab) suitable for connection to the exterior
system cables (from the sensors and actuators).
All connectors on the Main Harness are identified with labels to simplify
hookup. If a suitable “punch-out” hole in the rear cab wall or floor is not
available to bring in the exterior system cables, cut a hole approximately two
and one-half (2 1/2 ) inches in diameter. The edges of this hole should be
covered with a piece of plastic or rubber U-channel material to protect the
insulation of the cables passing through the hole. Anchor all cables suitably
with nylon cable ties to prevent damage due to flexing and scraping. RTV or
silicone caulk can be used to seal the hole.
CAUTION: Do not mistakenly connect the following lead directly to
the battery voltage because this will prevent the system from storing
data properly!
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Connect the RED Ignition lead to the “switched “ terminal of the ignition
switch. The correct terminal is at 12 volts DC or higher only when the ignition
switch is turned on.
Notes:
• Use dust caps on all unused
connectors, both internal and
external. This includes keyboard
and RS-232 connectors.
If the vehicle has a two-speed axle, connect the terminal of the YELLOW 2Speed Axle lead to the appropriate terminal on the axle-shifter switch. If the
vehicle does not have a two-speed axle, insulate the terminal with electrical
tape and tie back this YELLOW lead with a cable tie.
Connect the hopper level sensor and boom sense inputs, if used. The Boom
Sense 5 (gray wire) line can be connected to a pre-wet/anti-ice selector input
switch.
CAUTION: Verify battery voltage is 12 volts, NOT 24 volts.
Finally, connect both Control Point™ Main Harness battery leads directly to
the vehicle battery. Attach the RED wire to the positive battery terminal and
the BLACK wire to the negative terminal.
USING THE EXTENSION HARNESS (46649-0460)
The Extension Harness is used only when the exterior system cable connectors
need to be located outside the cab of the truck. If the Extension Harness is not
used, skip to the next heading, “Checking Operation”.
Plug the Extension Harness into the Console, rotating the connector collar
fully-clockwise to lock it. Then route the harness to the rear cab wall. The male
circular connector of the Extension Harness is usually panel-mounted on the
rear cab wall or floor with the jamb-nut included on this connector. Alternatively, a clearance hole can be cut. If using a clearance hole, cover the edges of
this hole with a piece of plastic or rubber U-channel material to protect the
insulation of the cables passing through the hole.
CAUTION: Do not mistakenly connect the following lead directly to
the battery voltage because this will prevent the system from storing
data properly!
Connect the RED Ignition lead to the switched side of the ignition switch. (The
correct terminal is at about 12 volts DC only when the ignition switch is turned
on.)
If the vehicle has a two-speed axle, connect the terminal of the YELLOW 2Speed Axle lead to the appropriate terminal on the axle-shifter switch. If the
vehicle does not have a two-speed axle, insulate the terminal with electrical
tape and tie back this YELLOW lead with a cable tie.
Plug the Main Harness into the Extension Harness at the rear cab wall or floor.
On the Main Harness, insulate with electrical tape and tie back the RED
Ignition lead and the YELLOW 2-Speed Axle lead. Also, tie back the spare
Boom Sense and Ground Speed connectors on the Main Harness and Extension Harness. Anchor the harnesses with nylon cable ties to prevent damage
due to flexing. If using a clearance hole through the cab wall or floor, RTV or
silicone caulk can be used to seal this hole.
The connectors at the opposite end of the Main Harness are clearly marked
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OPERATOR'S MANUAL
with labels identifying mates for the external system cables. While these
weatherproof connectors need not be protected further from the elements, they
can be placed inside a vehicle box or other enclosure.
Connect the hopper level sensor and boom sense inputs, if used. The Boom
Sense 5 line can be connected as a pre-wet/anti-ice selector input.
CAUTION: Verify battery voltage is 12 volts, NOT 24 volts.
Finally, connect both Control Point™ Main Harness battery leads directly to
the vehicle battery. Attach the RED wire to the positive battery terminal and
the BLACK wire to the negative terminal.
CHECKING OPERATION
After completing the installation, turn on the ignition switch. The Console
display should light, showing first the DICKEY-john name and logo screen and
then the OPERATE screen (See Figure 6). See the OPERATION chapter of
this manual for additional testing.
Figure 42. Switch Module Cabling
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Figure 43. System Harness Layout
50/SYSTEM INSTALLATION
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OPERATOR'S MANUAL
CHAPTER 6 – SYSTEM TROUBLESHOOTING
The Control Point™ system contains six basic components, each with a
specific function. Component failures normally react in predictable ways,
making fault isolation relatively easy. If certain components are not operating properly, such as a hydraulic pump or motor, system performance is
degraded and the console may incorrectly appear to be at fault.
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OPERATOR'S MANUAL
Symptom 1: Console does not power on.
Corrective Action:
1. Check for blown fuse, located in positive battery lead. If
blown, replace with blade-type, same size fuse.
2. Check for poor connections to the battery; remove any
corrosion. Also check battery polarity.
3. Check the red ignition wire.
4. Visually inspect power cable from rear of Console to battery.
If damaged, replace cable/repair.
5. If no problem can be found with power connection or power
cable, console may be at fault.
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Symptom 2: “MANUAL MODE” flashes on display.
If the words “MANUAL MODE” are flashing on the display, the Control
Point™ system may have reverted to the manual override function to
compensate for a sensor failure (liquid flowmeter, conveyor/auger sensor or
spinner sensor). If so, the system is operating in open loop control to allow
spreading/spraying to continue until sensor repair/replacement is possible.
Corrective Action for Granular System:
1. If material is not spreading (Conveyor or auger stopped).
• Make sure the PTO is engaged.
• Check for lodged obstacles in conveyor or auger.
• Check for a hydraulic system failure (pump, valve, hydraulic
motor).
2. If material is spreading (conveyor or auger turning)
• Check for a disconnected or slipping conveyor sensor coupling.
• Unplug connector nearest the conveyor sensor. Check for
+12V between the RED and BLK wires and +8V between the
GRN and BLK wires. Absence of either voltage indicates a
broken or shorted wire within the cable assembly or a corroded pin in the connector. If voltages are present, replace the
conveyor sensor.
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OPERATOR'S MANUAL
Corrective Action for Liquid System:
1. If liquid is not spraying.
• Check tanks for proper level.
• Check liquid filters for plugging.
• Check pump and wires to pump for corrosion and correct.
voltage.
2. If liquid is spraying.
• Check flowmeter for debris jamming the paddle wheel.
• Unplug the connector nearest the flowmeter sensor. Check for
+12V between the RED and BLK wires and +8V between the
GRN and BLK wires. The absence of either voltage indicates a
broken or shorted wire within the cable assembly or a corroded
pin in the connector. If voltages are present, repair/replace the
flowmeter sensor.
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Symptom 3: AUTO Inoperative; UNLOAD operates
If the spreader/sprayer does not function when the MASTER Switch is in
AUTO but does in the UNLOAD position, the ground sensor may have
failed.
Corrective action:
1. Check the ground speed reading (MPH) on the console. If the
ground speed reading is 0 when the truck is moving;
• Check wires and connections between the DICKEY-john
ground speed sensor and the console.
• Check wires and connections between the DICKEY-john
ground speed sensor and the transmission speed sensor.
2. Check the ground speed calibration number programmed in the
console (F7). Compare the number to the original setting. Typically, the constant should be between 35000 to 60000.
3. Next, replace the ground speed sensor.
4. If the failure continues, replace the MASTER switch module and
then the console.
Note: The Control Point™ system can continue operating without a “true”
ground speed sensor input by setting the MANUAL SPEED to YES in the
GROUND SPEED CONFIGURATION (F7) screen. With this enabled, the
console simulates an artificial ground speed signal which appears on the
display.
To spread/spray in this mode, set the MASTER Switch to the AUTO
position and drive the truck at the displayed SPEED. To stop spreading,
switch the MASTER Switch back to the OFF position.
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OPERATOR'S MANUAL
Symptom 4: Displayed APR fluctuates
If the actual APR displaying on console fluctuates more than 5% above and
below the target APR while the vehicle maintains a steady speed, the System
Response should be investigated.
Corrective Action:
1. System Response (SYS RSPNS) constant is too large. See heading
"Fine-tuning System Response Constants" in Chapter 4.
2. Check APR sensor for loose coupling or slipping on shaft.
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
Symptom 5: Displayed APR responding slowly
If the actual APR displaying on the console is slow responding to ground speed
or target APR changes or stabilizes at the wrong value, the System Response
may require fine tuning.
Corrective Action:
1. System Response (SYS RSPNS) constant may be too small. See
heading "Fine-tuning System Response Constants" in Chapter 4.
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
Symptom 6: Spinner rotational speed incorrect.
Corrective Action:
1. Check PWM OFFSET and PWM settings in SPINNER mode (F8)
for incorrect setting.
2. Check for variations in granular material density dropping onto the
spinners from the conveyor/auger.
3. On proportional valves, increases in electrical coil resistance due to
heat buildup can cause valve position shifts, resulting in speed
changes.
4. On servo valves, increases in hydraulic fluid temperature heats up
the valve and result in speed variations.
5. Check for drag due to snow and ice buildup.
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
54/SYSTEM TROUBLESHOOTING
CONTROL POINT™
11001-1100-199904 Revision A
OPERATOR'S MANUAL
Symptom 7: APPLICATION RATE ERROR
If an APPLICATION RATE ERROR flashes on the display and the alarm
sounds, a fully open valve is indicated but the target APR can not be achieved.
Corrective Action for Granular System:
1. Reduce the truck ground speed to allow the system to catch up and
the error to clear.
2. Shift to a lower gear to increase engine RPM and hydraulic pump
rotation.
3. Check hydraulic disconnects and filter.
3. Ensure correct spreader constant is programmed into console.
Check original setting or run a Granular Calibration (F6).
4. Incorrect PWM SAT setting (See Granular Configuration screen F3). Compare against original setting or run System Response on
the Granular channel (F11) setting.
5. Check for insufficient hydraulic oil flow at normal engine RPM.
6. Check spreader valve, electrical connections to the valve coil,
resistance of the coils (See manufacturers specifications), and verify
voltage from control console.
Corrective Action for Liquid System:
1. Check to see if the liquid tanks are low, shut off valves are partially
closed, bypass valves are open too far, or an obstruction is in the
liquid tank outlet.
2. Check filters between the liquid tank and suction side of the liquid
pump for blockage.
3. Check for plugged nozzles or nozzles that are too small to supply
sufficient gallons per minute.
4. If using a electric liquid pump, check that the nozzle pressure (spray
bar pressure) does not exceed 40 psi. Some electric pumps have an
internal pressure switch to shut pump off high back pressure
conditions.
5. Ensure a correct K-FACTOR is programmed. Compare it against
the number stamped on the flowmeter body or recorded on the
Calibration Data Record Sheet. If original settings are not available,
run a Liquid Calibration (F6).
6. Observe the PWM SAT under the Liquid Configuration screen
(F5). Compare against original setting. If not available, run a System
Response on the Liquid Channel, (F11).
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
CONTROL POINT™
11001-1100-199904 Revision A
SYSTEM TROUBLESHOOTING/ 55
OPERATOR'S MANUAL
Symptom 8: System does not operate
If the system does not respond with the MASTER switch in AUTO or UNLOAD or the BLAST button has no effect, the hydraulic valve may not be
opening to supply hydraulic oil to the conveyor motor (spreader system) or
the pump may not be rotating to supply liquid to the spray bar (liquid system).
Corrective action for a PWM valve:
The following four steps describe repair for a pulse width modulated hydraulic
valve (Rexroth, Gresen, Vickers, Parker, etc.). Begin by disconnecting the
electrical connections at the solenoid coil and then set the MASTER Switch
into UNLOAD position to prevent possible damage to the PWM valve driver
and coil.
1. Check voltage readings on the granular valve connector of the
main harness at pin 16 and 8. Use pin 15 as ground. Pin 16 should
read battery voltage (+12V); pin 8 reads a percentage of +12V
determined by PWM SAT value entered under Granular Configuration (F3). (i.e. If PWM SAT is 40, then a reading of +4.8 V. –12 x
.40 = 4.8 be present).
2. Check voltage readings at the solenoid valve coil. The WHT wire
supplies the PWM voltage signal to the coil; the GRY wire is signal
ground. Voltage reading should be equal to reading in step above.
If voltages are not present, check wiring harnesses for cuts or
shorts.
3. If voltages are present a hydraulic valve or hydraulic flow problem
is indicated.
4. If the above checks are normal, replace the PWM valve driver. If
this does not the solve problem, replace the console.
Corrective action for an actuator:
Begin by disconnecting the electrical connections at the solenoid coil. Then set
the MASTER switch to the UNLOAD position for the following two steps to
prevent possible actuator damage.
1. Check voltage readings on the granular valve connector of the
main harness at pins 16 and 8. Use pin 15 as ground. Pin 16 and 8
should read battery voltage (+12V).
2. If voltages are present and actuator does not rotate, replace the
actuator.
If voltages are not present replace main harness, valve extension
cable, or console.
Corrective action for a Sprayer system
56/SYSTEM TROUBLESHOOTING
CONTROL POINT™
11001-1100-199904 Revision A
OPERATOR'S MANUAL
If the sprayer system is not spraying, begin by disconnecting the electrical
connections at the pump or solenoid coil. Then switch the MASTER switch
to the UNLOAD position for the following checks to prevent possible
damage to the liquid valve driver and coil.
1. Check voltage reading on the RED and BRN wires at the liquid
valve connector of the main harness. Use the BLK wire as ground.
The RED wire should read battery voltage (+12V) and the BRN
wire should read a voltage equal to a percentage of +12V determined by PWM SAT value entered under LIQUID CONFIGURATION (F5) (i.e. If PWM SAT is 90, then a reading of +10.8V –
12 x .9 = 10.8 should be present).
Check voltage readings at the pump or solenoid coil on the valve.
The RED wire supplies the PWM voltage signal to the pump or
solenoid coil, while the BLK wire is signal ground. Voltage
reading should be equal to those above.
2. If voltages are present but sprayer does not spray, the pump,
solenoid coil, hydraulic valve, or hydraulic flow may be faulty.
If voltages are not present, check wiring harnesses for cuts or
shorts, then replace the liquid valve driver. If this does not solve
problem, replace the console.
○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
CONTROL POINT™
11001-1100-199904 Revision A
SYSTEM TROUBLESHOOTING/ 57
OPERATOR'S MANUAL
Figure 44. System Wiring Diagram, Console and Cab Harness
58/SYSTEM TROUBLESHOOTING
CONTROL POINT™
11001-1100-199904 Revision A
OPERATOR'S MANUAL
Figure 45. System Wiring Diagram, Truck Harness and Sensors
CONTROL POINT™
11001-1100-199904 Revision A
SYSTEM TROUBLESHOOTING/ 59
OPERATOR'S MANUAL
60/SYSTEM TROUBLESHOOTING
CONTROL POINT™
11001-1100-199904 Revision A
OPERATOR'S MANUAL
APPENDIX A – CONVERTING CONSTANTS
FINE TUNING APPLICATION
A. Adjusting Granular Constants
If small (less than 10%) but consistent granular APR errors (either high or
low) are observed over a period of time, fine-tuning of the system can be
performed by adjusting the value of the spreader constant by the same
percentage as follows:
EXAMPLE: If SPR CON is 100 and Target APR is 300 LBS/MILE but
Actual APR is known to be 315 LBS/MILE, adjust SPR CON using the
above formula:
NOTE: Keyboard enter the new SPR CON on the appropriate
(GRANULAR) CONFIGURATION screen.
B. Adjusting Liquid Constants
In a manner similar to that for granular (shown above), liquid APR
errors can be corrected by fine-tuning the flowmeter constant
(K-FACTOR) as follows:
EXAMPLE: If K-FACTOR is 1,000 and Target APR is 10 GAL/MILE but
Actual APR is known to be 9.5 GAL/MILE, adjust K-FACTOR using the
above formula:
C. Adjusting Nozzle Constants
Similarly, the nozzle constant can be adjusted for a pressure based system as
follows:
EXAMPLE: If NZLE CONT is 0.8 and Target APR is 50 GAL/MILE but
Actual APR is known to be 45 GAL/MILE, adjust nozzle constant using the
above formula:
CONTROL POINT™
11001-1100-199904 Revision A
SYSTEM DESCRIPTION/ 61
OPERATOR'S MANUAL
CALCULATING SPREADER CONSTANTS
The spreader constant can be calculated if the following is known:
A = Number of pulses per revolution of the sensor shaft.
B = Turns of the sensor shaft for each turn of the final shaft.
C = Pounds of material discharged per revolution of the final shaft.
EXAMPLE:
A = 360 pulses per revolution (for Dj sensor P/N 46436-017X).
B = 25 turns of the sensor shaft for each turn of the final shaft.
C = 50 pounds of material discharged per revolution of final shaft.
NOTES:
1. V-Box spreaders have a different SPR CON for each gate setting.
2. The number of pulses per revolution for several Dj shaft sensors are:
360 for P/N 46436-017X (standard Control Point™ shaft sensor).
60 for P/N 10844-000X.
900 for P/N 10837-00XX.
62/ SYSTEM DESCRIPTION
CONTROL POINT™
11001-1100-199904 Revision A
OPERATOR'S MANUAL
APPENDIX B – MECHANICAL ADJUSTMENTS
ADJUSTING VALVE MANUALLY
If the system contains a DICKEY-john dual servo valve which does not open in
either AUTO or UNLOAD, manual adjustment of the valve position is
possible to allow continued spreading. The procedure is as follows:
1. Clean all dirt and foreign matter from the valve actuator
cover and clamp.
2. Remove the clamp, cover, and gasket.
3. Loosen the valve coupling clamp and rotate the lower part
of the coupling (See Figure 46). Rotating the lower coupling
clockwise to the stop completely closes the valve; counter
clockwise opens it.
4. Adjust the valve position until the approximate conveyor
speed is obtained for the desired vehicle speed and target
APR. Tighten the coupling clamp.
5. Set the spinner speed using the same procedure.
6. Reinstall the gasket and cover and secure with clamp.
NOTE: This procedure may require some “trial-and-error” adjustment
until the correct setting is obtained.
Figure 46. Valve Coupling
CONTROL POINT™
11001-1100-199904 Revision A
MECHANICAL ADJUSTMENTS/ 63
OPERATOR'S MANUAL
ELIMINATING CONVEYOR OR SPINNER CREEP
If the system contains a DICKEY-john dual servo valve which “creeps” (moves
slowly when it should be stationary), correct as follows:
1. Park the vehicle and place the system in MANUAL SPEED
operation.
2. Perform all steps indicated under the heading “MANUAL
VALVE ADJUSTMENT” above except change Step 4 to:
Rotate the lower coupling clockwise until the creeping stops. Tighten
the coupling clamp.
64/MECHANICAL ADJUSTMENTS
CONTROL POINT™
11001-1100-199904 Revision A
OPERATOR'S MANUAL
CALIBRATION DATA RECORD SHEET
MISCELLANEOUS (F12)
SYSTEM STATISTICS
Owner Name __________________________
Date of Setup __________________________
Software Revision _______________________
Display Console Serial Number ___________
ACCUMULATORS (F9)
ENABLE CLR
SYSTEM INFORMATION (F9)
BLAST SETUP
BLAST TIMER
BLAST SPEED
SYSTEM UNITS
SERIAL PORT
BAUD RATE
DATA BITS
PARITY
___________
___________
___________
___________
___________
___________
TRUCK ID
GRANULAR APPLICATION RATE (F2)
Parameter
Granular Material
STEP METHD
APP START/RATE 1
IC/DC STP/RATE 2
MIN APP/RATE 3
MAX APP/RATE 4
RATE 5
RATE 6
RATE 7
RATE 8
RATE 9
RATE 10
BLST RATE
CHN LBL
Salt
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
Sand
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
Mix A
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
Mix B
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
Mix A
__________
__________
__________
__________
__________
__________
__________
__________
Mix B
__________
__________
__________
__________
__________
__________
__________
__________
GRANULAR CONFIGURATION (F3)
Parameter
Granular Material
SPR CON
DRV FREQ
PWM OFFSET
PWM SAT
SYS RSPNS
VALV BOOST
AFILT
CONTROL POINT™
11001-1100-199904 Revision A
Salt
___________
___________
___________
___________
___________
___________
___________
___________
Sand
___________
___________
___________
___________
___________
___________
___________
___________
CALIBRATION DATA RECORD SHEET/ 65
OPERATOR'S MANUAL
SPINNER CONFIGURATION (F8)
GROUND SPEED CONFIGURATION (F7)
MAX SPEED
MANUAL DRIVER
MANUAL SPEED
START UP
CONSTANT 1
CONSTANT 2
___________
___________
___________
___________
___________
___________
UNLOAD
NO GND SPD
DRV FREQ
PULSE FDBK
SPIN CON
BLST RATE
SYS RSPNS
VALV BOOST
AFILT
PWM OFFSET
PWM SAT.
SPRD LIMIT
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
LIQUID CONFIGURATION (F5)
Parameter
Liquid Material
K-FACTOR/DENSITY
PRES OFFST
MAX PRES
MAX VOLT
NZLE CNST
DRV FREQ
PWM OFFSET
PWM SAT.
SYS RSPNS
VALV BOOST
AFILT
Liquid 1
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
Liquid 2
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
Liquid 3
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
Liquid 4
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
Liquid 3
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
Liquid 4
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
LIQUID APPLICATION RATE (F4)
Parameter
Granular Material
STEP METHD
APP START/RATE 1
IC/DC STP/RATE 2
MIN APP/RATE 3
MAX APP/RATE 4
RATE 5
RATE 6
RATE 7
RATE 8
RATE 9
RATE 10
BLST RATE
CHN LBL
Liquid 1
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
66/CALIBRATION DATA RECORD SHEET
Liquid 2
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
CONTROL POINT™
11001-1100-199904 Revision A
OPERATOR'S MANUAL
CALIBRATION DATA RECORD SHEET
MISCELLANEOUS (F12)
SYSTEM STATISTICS
Owner Name __________________________
Date of Setup __________________________
Software Revision _______________________
Display Console Serial Number ___________
BLAST SETUP
BLAST TIMER
BLAST SPEED
SYSTEM UNITS
SERIAL PORT
BAUD RATE
DATA BITS
PARITY
ACCUMULATORS (F9)
ENABLE CLR
SYSTEM INFORMATION (F9)
___________
___________
___________
___________
___________
___________
TRUCK ID
GRANULAR APPLICATION RATE (F2)
Parameter
Granular Material
STEP METHD
APP START/RATE 1
IC/DC STP/RATE 2
MIN APP/RATE 3
MAX APP/RATE 4
RATE 5
RATE 6
RATE 7
RATE 8
RATE 9
RATE 10
BLST RATE
CHN LBL
Salt
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
Sand
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
Mix A
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
Mix B
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
Mix A
__________
__________
__________
__________
__________
__________
__________
__________
Mix B
__________
__________
__________
__________
__________
__________
__________
__________
GRANULAR CONFIGURATION (F3)
Parameter
Granular Material
SPR CON
DRV FREQ
PWM OFFSET
PWM SAT
SYS RSPNS
VALV BOOST
AFILT
CONTROL POINT™
11001-1100-199904 Revision A
Salt
___________
___________
___________
___________
___________
___________
___________
___________
Sand
___________
___________
___________
___________
___________
___________
___________
___________
CALIBRATION DATA RECORD SHEET/ 67
OPERATOR'S MANUAL
SPINNER CONFIGURATION (F8)
GROUND SPEED CONFIGURATION (F7)
MAX SPEED
MANUAL DRIVER
MANUAL SPEED
START UP
CONSTANT 1
CONSTANT 2
___________
___________
___________
___________
___________
___________
UNLOAD
NO GND SPD
DRV FREQ
PULSE FDBK
SPIN CON
BLST RATE
SYS RSPNS
VALV BOOST
AFILT
PWM OFFSET
PWM SAT.
SPRD LIMIT
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
LIQUID CONFIGURATION (F5)
Parameter
Liquid Material
K-FACTOR/DENSITY
PRES OFFST
MAX PRES
MAX VOLT
NZLE CNST
DRV FREQ
PWM OFFSET
PWM SAT.
SYS RSPNS
VALV BOOST
AFILT
Liquid 1
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
Liquid 2
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
Liquid 3
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
Liquid 4
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
Liquid 3
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
Liquid 4
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
__________
LIQUID APPLICATION RATE (F4)
Parameter
Granular Material
STEP METHD
APP START/RATE 1
IC/DC STP/RATE 2
MIN APP/RATE 3
MAX APP/RATE 4
RATE 5
RATE 6
RATE 7
RATE 8
RATE 9
RATE 10
BLST RATE
CHN LBL
Liquid 1
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
68/CALIBRATION DATA RECORD SHEET
Liquid 2
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
___________
CONTROL POINT™
11001-1100-199904 Revision A
DlCKEY-john® WARRANTY
DlCKEY-john warrants to the original purchaser for use that, if
any part of the product proves to be defective in material or
workmanship within one year from date of original installation,
and is returned to DICKEY-john within 30 days after such defect
is discovered, DlCKEY-john will (at our option) either replace or
repair said part. This warranty does not apply to damage
resulting from misuse, neglect, accident or improper installation
or maintenance. Said product will not be considered defective if
it substantially fulfills the performance specifications. THE
FOREGOING WARRANTY IS EXCLUSIVE AND IN LIEU OF
ALL OTHER WARRANTIES OF MERCHANTABILITY,
FITNESS FOR PURPOSE AND OF ANY OTHER TYPE,
WHETHER EXPRESS OR IMPLIED. DlCKEY-john neither
assumes nor authorizes anyone to assume for it any other
obligation or liability in connection with said product and will
not be liable for consequential damages. Purchaser accepts these
terms and warranty limitations unless the product is returned
within fifteen days for full refund of purchase price.
For DICKEY-john Service Department,
call 1-800-637-3302 in either the U.S.A. or Canada
DICKEY-john®
P.O. BOX 10 • 5200 DICKEY-john Road • Auburn, IL. 62615
Telephone: (217) 438-3371 • Fax: (217) 438-6012
Website: www.dickey-john.com
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