Installation & Service Manual SCS 450 Serial Interface
Disclaimer While every effort has been made to ensure the accuracy of this document, Raven Industries assumes no responsibility for omissions and errors. Nor is any liability assumed for damages resulting from the use of information contained herein. Raven Industries shall not be held responsible or liable for the effects of atmospheric conditions and sunspot activity on the performance of our products.
Table of Contents Chapter 1 Important Safety Information................................................. 1 Important Safety Information ..................................................................................................... 1 Hydraulic Safety .................................................................................................................. 2 Electrical Safety ...................................................................................................................
Table of Contents Console Programming ............................................................................................................. 28 Data Entry .......................................................................................................................... 28 Initial Console Programming ............................................................................................. 28 Changing Initial Console Programming .............................................................
CHAPTER 1 Important Safety Information Chapter1 Important Safety Information NOTICE Read this manual and the operation and safety instructions included with your implement and/or controller carefully before installing the SCS 450 Serial Interface system. • Follow all safety information presented within this manual. • If you require assistance with any portion of the installation or service of your Raven equipment, contact your local Raven dealer for support.
Chapter 1 DANGER Thoroughly bleed the nurse tank hose and all other system lines prior to disassembling the flow meter, fittings, and hoses, especially in the case of anhydrous ammonia. CAUTION Hydraulic Safety • Raven Industries recommends that appropriate protective equipment be worn at all times when working on the hydraulic system. • Never attempt to open or work on a hydraulic system with the equipment running. Care should always be taken when opening a system that has been previously pressurized.
CHAPTER Introduction Chapter2 2 Introduction Congratulations on your purchase of the Raven SCS (Sprayer Control System) 450 Serial Interface! The Raven SCS 450 is designed to provide uniformity of spray applications, regardless of the vehicle’s speed. Utilizing a computer-based console, a speed sensor, a turbine-type flow meter, and a motorized control valve, the SCS 450 also functions as an area monitor, speed monitor, and volume totalizer.
Chapter 2 Unit Definitions and Conversions Unit of Measure Definitions Abbreviation Definition Abbreviation Definition GPM Gallons per Minute cm Centimeters lit/min Liters per Minute dm Decimeters dl/min Deciliters per Minute m Meter PSI Pounds per Square Inch MPH km Miles per Hour kPa Kilopascal GPA Gallons per Acre km/h Kilometers lit/ha Liters per Hectare US Volume per Acre ml/ha Milliliters per Hectare SI Volume per Hectare GPK Gallons per 1,000 Square Feet TU Volum
Introduction Calculating Machine’s Calibration Values Calculate the Boom Cal Value Broadcast Spraying Calculate the Boom Cal value in inches [cm] by multiplying the number of tips by the spacing between the tips. Be sure to write down these figures for future reference when programming the console. Boom Sections 2 FIGURE 1. Band Spraying Calculate the Boom Cal value in inches [cm] by multiplying the number of tips by the spacing between the tips.
Chapter 2 Phoenix 10 Speed Sensors Only The initial Speed Cal value for Phoenix 10 speed sensors is 785 [200]. After the initial console programming has been performed, this value may be adjusted to optimize the system’s performance. Wheel Drive Speed Sensors Only Important: FIGURE 2. This procedure should be performed only after the entire system installation is complete. This procedure is critical to the console’s performance, so measure carefully.
Introduction Calculate the Meter Cal Value No calculation of the Meter Cal value is necessary, since the flow meter calibration value is stamped on the tag attached to each flow meter. Locate this number and write it down for future reference when programming the console. Calculate the Valve Cal Value • • • • • 2 The Valve Cal figure is used to control the response time of the control valve motor to the change in the vehicle’s speed. After operating the system, this number may be refined.
Chapter 2 Digit Description Range Brake Point Sets the percentage away from target rate at which the control valve motor begins turning at a lower rate. 0-9 Dead Band Allowable difference between the target and actual application rate, where rate correction is not performed.
Introduction For Example: Nominal Application Pressure 30 PSI (kpa) Target Application Rate 20 GPA (lit/ha) Target Speed 5.2 MPH (km/h) Nozzle Spacing 20 inches (cm) 20 GPA x 5.2 MPH x 20 inches = .35 GPM 2 5,940 Based on these calculations and a PSI of 30, tip XR8004 should be selected since it comes closest to providing the desired output. Verifying Flow Rate Limits The flow rate of spray must be within the specified range for the flow meter being used.
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CHAPTER Calibration Card Chapter3 3 Introduction Located on the next page is a card that may be used to record the machine’s calibration values. Write the calibration numbers in pencil so that they may be revised if necessary. Cut on the dotted line, fold, and insert the card into the plastic envelope provided for your convenience. FIGURE 1. Calibration Card Inserted into Envelope Manual No.
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CHAPTER Installation Chapter4 4 Sensor Installation Raven Radar Speed Sensor Note: FIGURE 1. Raven Industries recommends the installation of a large, heavy mounting bracket (P/N 107-0159693) on the machine’s frame for mounting the radar speed sensor. Radar Mounting Locations End-to-End View Side-to-Side View 1. Park the machine on a level surface. 2.
Chapter 4 3. Use a level to verify that the selected mounting bracket location is parallel to the ground. 4. Bolt the mounting bracket to the machine. FIGURE 2. Radar Mounting 5. Bolt the radar to the mounted bracket using the supplied mounting hardware. 6. Connect the radar power cable (P/N 115-0159-539) to the radar. Note: The radar power cable will be connected to the console later in the procedure.
Installation Rim Drilling for Six Hole Wheel Stud Patterns - Optional This section is required only on wheels that do not have pre-punched mounting holes. If your machine has the pre-punched mounting holes, proceed to the Mounting the Wheel Drive Speed Sensor section on the following page. FIGURE 4. Six Hole Stud Pattern 1. Cut a piece of wood so that it is an exact fit from the top edge of the rim to the bottom edge of the rim. 2. Measure the length of the cut wood block and mark the center. 3.
Chapter 4 FIGURE 6. Note: 4. Switch Assembly Installed The switch assembly does not need to pivot with the wheel. Loosely mount the switch assembly to the wheel axle with the supplied hardware, positioning it so that as the wheel rotates, the magnets pass across the center of the switch assembly. • Clearance between the magnets and the switch assembly must be 1/4” - 1” [6 mm - 25 mm].
Installation Flow Meter Installation Mounting the Flow Meter Note: 1. Flow Meter Installation Diagram All flow through the flow meter must go to the boom sections only. Ensure there are no return, agitation, or sparge lines to the tank or pump after the flow meter. Mount the flow meter in the area of the boom valves (horizontal to the ground) using the supplied bracket. Refer to the figure above. • Allow a minimum of 7-1/2” [20 cm] of straight hose on the inlet of the flow meter.
Chapter 4 Control Valve Installation Install the Control Valve FIGURE 9. Note: Control Valve Installation Diagram This plumbing schematic applies only to applications of 3 GPM [11 lit/min] or greater. For flow less than 3 GPM [11 lit/min], the motorized control valve is mounted on a bypass line. Refer to the Alternate Bypass Line Plumbing System section on page 19 for the alternate bypass line plumbing procedure. 1.
Installation Alternate Bypass Line Plumbing System FIGURE 10. Note: Alternate Bypass Line Plumbing System Diagram This plumbing schematic applies only to applications of less than 3 GPM [11 lit/min]. For flow of 3 GPM [11 lit/min] or greater, the motorized control valve is installed on the main hose line. Refer to the Install the Control Valve section on page 18 for the main hose line plumbing procedure. Install the control valve in the by-pass #1 hand valve line with the motor in the upright position.
Chapter 4 Console and Cabling Installation CAUTION Always connect the power cable as the last step in the installation process and verify that the power leads are connected with the correct polarity. Reversing power leads can cause severe damage to the equipment. 1. Mount the SCS 450 console to a secure area inside the machine’s cab. Note: The SCS 450 console should be mounted in the machine’s cab so that the machine operator has easy access to it. 2.
Installation Console Cabling Diagram 4 FIGURE 11. Manual No.
Chapter 4 Install the Remote Switch - Optional An optional remote switch may be installed if the console is mounted in a location that is not easily accessible. A remote switch may include a foot switch or a toggle switch on the joystick. To utilize the remote switch, the master switch on the console must be turned off. The master switch on the console can be used again once the remote switch is turned off. Refer to the figure above to install the optional remote switch.
Installation Battery Connections Note: If the system will not be used for an extended period of time (for example, two weeks), be sure to disconnect the SCS 450 battery wires. If the wires are not disconnected and the SCS 450 is only turned OFF, the system will continue to draw 0.25 milliamperes of current to maintain information stored in the console computer, draining the battery. Manual No.
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CHAPTER 5 Important: Console Programming and Calibration Chapter5 The SCS 450 console requires the selection of volume rate (US, SI, or TU), speed sensor type (SP1 or SP2), and valve type (C-SD - standard valve, C-F - fast valve, C-FC - fast close valve, C-P - PWM valve, or C-PC - PWM close valve). Hold the SELF TEST key to review the selections. Console Identification There may be situations that arise during which it may be necessary to contact Raven Industries with questions about the SCS 450 system.
Chapter 5 Console Features Used to scroll through the menu options in Data Menu Turns the console power on or off Toggles to variable submenus within a menu (except in Data Menu) Selects manual or fully automatic control Manual override control provides the capability of spot application Displays the rate of application, calibration, and function data. Enters the information inputted into the console SCS 450 Serial Interface Installation & Service Manual 26 SCS 450 Serial Console FIGURE 2.
Console Programming and Calibration Button Definitions Calibration Buttons The calibration buttons are used to enter data into the console when calibrating the system. Refer to the table below for the button names and functions. Button Name Function BOOM CAL Length of the boom. Select the boom number by using the up/down arrow keys. SPEED CAL Determined by speed sensor. METER CAL Meter calibration number. VALVE CAL Valve response time RATE 1 CAL Target application rate.
Chapter 5 Console Programming Data Entry Note: 1. Data must be entered for all booms and for each of the variables. If a boom is not in use, enter 0 as the value for that boom. Press the number key that corresponds with the variable to be changed: • • • • • • 3 - BOOM CAL 4 - SPEED CAL 5 - METER CAL 6 - VALVE CAL 7 - RATE 1 CAL 8 - RATE 2 CAL 2. Press ENTER. The name of the variable being changed and the letter E will appear in the display. 3. Use the number buttons to enter the value. 4.
Console Programming and Calibration 9. Use the arrow keys to advance to the remaining booms and enter the data for each boom. Note: 10. If a boom is not being used, enter 0 for the boom length. Press the SPEED CAL button and enter the appropriate speed cal value for the type of sensor being used. Note: The SPEED CAL value will have to be calibrated if Raven radar is not being used. 11. Press the METER CAL button and enter the meter cal value stamped on the flow meter’s identification tag. 12.
Chapter 5 7. Enter the adjusted Speed Cal value. 8. Recheck the new Speed Cal value by repeating the steps above. Refining the Speed Cal Value - Phoenix 10 Speed Sensors Only The initial Speed Cal value when using the Phoenix 10 speed sensor is 785 [200]. However, after initial console programming, it may be necessary to refine this number to improve the system’s performance. Complete the following steps to refine the speed cal value: 1. Verify the SCS 450 console is powered ON. 2.
Console Programming and Calibration Programming Additional System Data Although it is not required for system operation, data may be entered in the VOL TANK and TIME submenus. Vol Tank 1. Press the VOL TANK button. 2. Press ENTER. 3. Enter the estimated volume of product in the tank. 4. Press ENTER. Note: The VOL TANK variable will have to be updated each time the tank is refilled. Time and Date Note: The system runs on a 24 hour clock.
Chapter 5 System Features Data Menu Pressing the DATA MENU button displays the menu options by name and the default setting. Use the arrow keys to scroll through the menu options. Menu Option Function Sends data through the serial port to the attached printer (optional - not supplied by Raven) to Print Field Begin and Print Field End pages. Pressing CE will toggle between the two pages. PRINT FIELD BEGIN ALARM ON 1. Press ENTER to print the Print Field Begin.
Console Programming and Calibration Menu Option Function Used to set the maximum desired RPM or hydraulic output of the Pulse-Width Modulated (PWM) control valve. HIGH PWM OFFSET 253 1. In the DATA MENU, use the arrow keys to advance to HIGH PWM OFFSET 253. 2. Move the product switch to MAN and the boom switches and master switch to ON. 3. Hold the INC/DEC switch to increase the RPMs. If the motor exceeds the desired RPMs, decrease the number by 10 and push INC again. 4.
Chapter 5 SCS 450 Console to Remote Computer Data Strings All request strings begin with $R, indicating a Raven communication string. The 124 value indicates the last three digits of the programmed chip part number in the console, and F is the software revision letter of the console.
Console Programming and Calibration Volume/Min Rate Fault The low limit value is the minimum volume per minute allowed before the valve stops closing, an alarm sounds, and the SCS 450 console displays the message “LOW LIMIT.” The low limit value should be determined with all booms turned on, since this value is directly proportional to the percentage of booms that are turned on.
Chapter 5 Control Valve Delay and Valve Advance The Control Valve Delay feature allows the user to set a delay between the time the booms are turned on and when the console begins to control the flow rate. The delay is active if the time between turning off the booms and turning them back on is less than 30 seconds. The Valve Advance feature allows the user to set the amount of time (in seconds) the valve is open.
Console Programming and Calibration Entering Data in the Data Lock Mode 1. Press the button of the variable to be edited. 2. Press ENTER. A message prompting for the data-lock code will appear. 3. Enter the data-lock code. If the code is correct, E will appear on the display. 4. Enter the data to be changed as usual. Clear the Data-Lock Code The Data-Lock feature may be disabled so that a data-lock code is not required in one of two ways.
Chapter 5 Shift the Decimal Place 1. Press the METER CAL button. 2. Press the SELF TEST button. 3. Enter the flow meter calibration value stamped on the identification tag. 4. Press ENTER. Unshift the Decimal Place 1. Press the METER CAL button. 2. Enter the flow meter calibration value stamped on the identification tag. 3. Press ENTER.
CHAPTER 6 Initial System Setup and Testing Chapter6 Initial System Setup After all components of the system have been installed and the console has been programmed, the SCS 450 is ready to be set up. Complete the following steps to set up the SCS 450 system. Note: This procedure applies only to applications of 3 GPM [11 lit/min] or greater. For flow less than 3 GPM [11 lit/min], refer to the Alternate Bypass Line System Setup section on page 40 for the alternate bypass line setup procedure. 1.
Chapter 6 Note: If the RATE and minimum pressure cannot be achieved, consider modifying the plumbing into the alternate by-pass plumbing system configuration. Refer to the Alternate Bypass Line Plumbing System section on page 19. Alternate Bypass Line System Setup Note: This procedure applies only to applications of less than 3 GPM [11 lit/min]. For flow of 3 GPM [11 lit/min] or greater, refer to the Initial System Setup section on page 39 for the main hose line setup procedure. 1.
Initial System Setup and Testing Initial System Field Test Note: This procedure applies only to applications of 3 GPM [11 lit/min] or greater. For flow less than 3 GPM [11 lit/min], refer to the Alternate Bypass Plumbing Initial System Field Test section for the alternate bypass line testing procedure. 1. Drive down the field at the target speed with the sprayer booms off to verify the SPEED readout in the console. 2. Turn on the sprayer and booms. 3. Switch the RATE switch to RATE 1. 4.
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CHAPTER 7 Preventative Maintenance & Troubleshooting Chapter7 General Preventative Maintenance Preventative maintenance is extremely important to ensure the long life of your machine and the SCS 450 system. The following preventative maintenance measures should be taken on a regular basis: • Flush the entire system with water after the use of suspension-type chemicals. Failure to clean the system can result in the crystallization of chemicals, causing plugs in the flow meter, lines, or nozzles.
Chapter 7 d. 4. Spin the turbine to confirm that it spins freely with very little drag inside the turbine hub. Adjust the turbine hub if necessary. This should be done whenever the transducer assembly is replaced or the turbine stud is adjusted or replaced. a. Hold the turbine hub with the turbine on the transducer. b. Spin the turbine by blowing on it. c. Tighten the turbine stud until the turbine stalls. d. Loosen the turbine stud 1/3 of a turn. The turbine should spin freely. 5.
Preventative Maintenance & Troubleshooting Recalibrating the Flow Meter This procedure should be performed when the tank is filled with water, not chemicals. 7 Note: 1. Enter a METER CAL value of 10 [38] into the console. 2. Enter a TOTAL VOLUME value of 0 into the console. 3. Turn OFF all booms. 4. Remove a boom hose and place it into a calibrated 5 gallon [19 liter] container. 5. Turn ON the boom switch for the boom hose that was removed. 6.
Chapter 7 Speed Sensor Cables Testing Speed Sensor Extension Cables Note: 1. Verify that the console is in the SP1 Speed Sensor mode while testing the cable. Disconnect the extension cable from the speed sensor assembly cable. FIGURE 2. Speed Sensor Connector Cable Connection +5 VDC Ground Power Signal +5 VDC Note: If a +5 VDC voltage reading is not present, disconnect the flow sensor cable.
Preventative Maintenance & Troubleshooting 7 Troubleshooting Console Issues Issue Corrective Action Check the fuse on the back of the console. Check the battery connections. 3. Check the operation of the Power ON/OFF switch. 4. Return the console to the dealer to have the processor board assembly replaced. 1. The console is on, but there are no lights lit up on the console. 2. All of the lights on the console are lit up at the same time.
Chapter 7 Issue Corrective Action Check the speed sensor. c. Run a speed check on a hard surface road. d. If the speed is accurate, move the speed sensor to a different wheel and perform a recheck. 2. Check the magnets. a. Remove one red magnet and one black magnet on the wheel. b. Reposition the remaining red and black magnets directly across from each other. c. Enter a SPEED CAL number in the console twice as large as the correct SPEED CAL number. d. Run a speed check on a hard surface road. e.
Preventative Maintenance & Troubleshooting Corrective Action 1. Check the cabling to the motorized control valve for breaks in the line. 2. Verify the cable connections are clean. 3. Verify that there is voltage to the valve connector. Cannot vary the RATE in automatic or manual operation. The sprayer pressure is correct, but the RATE is low. TOTAL VOLUME does not register. a. Turn the Master switch ON. b. Switch the RATE 1/RATE 2/MAN switch to MAN. c. Turn the POWER switch ON. d.
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CHAPTER Replacement Parts Chapter8 8 Manual No.
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Index C Console Programming and Calibration Console Features 26 Button Definitions 27 Console Identification 25 Console Programming 28 Changing Initial Console Programming 30 Data Entry 28 Initial Console Programming 28 Programming Additional System Data 31 System Features 32 Automatic Rate +/- 35 Control Valve Delay and Valve Advance 36 Data Logger 33 Data Menu 32 Data-Lock Feature 36 Activating the Data-Lock Code 36 Decimal Shift Feature 37 Low Tank Fault 35 Self Test Feature 34 Volume/Area Rate Alarm 35
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RAVEN INDUSTRIES Limited Warranty What Does this Warranty Cover? This warranty covers all defects in workmanship or materials in your Raven Applied Technology Product under normal use, maintenance, and service. How Long is the Coverage Period? Raven Applied Technology Division products are covered by this warranty for 12 months after the date of purchase. This warranty coverage applies only to the original owner and is non-transferrable.
SCS 450 Serial Interface Installation & Service Manual (P/N 016-0159-831 Rev D 03/10 E15839) Raven Industries Applied Technology Division P.O. Box 5107 Sioux Falls, SD 57117-5107 Toll Free (U.S. and Canada): (800)-243-5435 or Outside the U.S. :1 605-575-0722 Fax: 605-331-0426 www.ravenprecision.com atdinfo@ravenind.com Notice: This document and the information provided are the property of Raven Industries, Inc. and may only be used as authorized by Raven Industries, Inc.
