mathews company TOWER Series Operation Manual

Grain dryer
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TOWER SERIES
OPERATIONS
MANUAL
Developed from
Models: 10530
2000
3000
Technology
10740
10950
101160 101375
2400
2700
3500
4000
4800

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Summary of Contents for mathews company TOWER Series

  • Page 1 TOWER SERIES OPERATIONS MANUAL Developed from Technology Models: 10530 10740 10950 101160 101375 2000 2400 2700 3000 3500 4000 4800...
  • Page 2 Tower Series Developed from Volume KAN-SUN ® Technology 10520 / 10630 /10730 / 10840 / 101050 / 101275 10530 / 10740 / 10950 / 101160 / 101375 2000 / 2400 / 2700 3000 / 3500 / 4000 / 4800 Operations Manual...
  • Page 3 OPERATIONS MANUAL - TOWER SERIES © 2014 Mathews Company 500 Industrial Avenue Crystal Lake, IL 60012 USA Toll Free: (800) 323-7045 www.mathewscompany.com...
  • Page 4: Warranty Statement

    LIMITED WARRANTY FOR WHOLE GOODS Except as otherwise set forth herein, Mathews Company (Seller) warrants that the equipment supplied by Seller to Buyer shall be free from defects in materials and workmanship when properly installed and operated under normal conditions and in accordance with all applicable instruction manuals.
  • Page 5: Table Of Contents

    Table of Contents Introduction ............................1.1 Overview ........................1.1 Grain Drying Principles ....................1.1 Air ............................1.1 Heat ............................1.1 Time ............................1.1 Owner / Operator Notes ...................1.2 Warranty Registration ....................1.2 Model / Serial Number / Specifications ..............1.2 Safety ........................1.3 Lock-out / Tag-out Requirements ..................1.4 Blocks .............................1.5 Fire Emergency ......................1.5 Specifications ............................2.1...
  • Page 6 18' Tower Gas Train........................3.15 Burner ........................3.17 Operating Procedures ........................4.1 Overview ........................4.1 Component Adjustments ..................4.1 Air Pressure Switch ........................4.1 High Limit Switch ........................4.2 Grain Fill System (applies to Pinnacle Lite Control System only) ...........4.4 Temperature Controller (applies to Pinnacle Lite Control System only) ........4.6 Variable Frequency Drive (VFD) .....................4.10 Changing Variable Frequency Drive Parameters ..............4.24 Soft Starter Parameters ....................4.25...
  • Page 8: Introduction

    Operating Procedures, Maintenance and Troubleshooting. Overview The majority of the information in this manual applies to all Vacuum Cool Tower Series Grain Dryer, however it is important to understand that there are different configurations and options that may or may not be included on your particular machine.
  • Page 9: Owner / Operator Notes

    Mathews Company in disseminating information particular to your dryer model. Model / Serial Number / Specifications The model and serial number of your Mathews Company continuous flow grain dryer are stamped on plates located on the base of the dryer as shown: 1.2 Introduction...
  • Page 10: Safety

    Tower Series Operations Manual Specifications for the machine will be located on the nameplate which is located on the inside door of the High Voltage Cabinet as well as on the inside of the Remote Cabinet. A sample nameplate is shown below: Safety While operating or performing maintenance on your machine, it is important to make safety a top priority.
  • Page 11: Lock-Out / Tag-Out Requirements

    Tower Series Operations Manual Lock-out / Tag-out Requirements The purpose of a lock-out / tag-out procedure is to prevent injury and/or death to personnel by requiring that certain precautions be taken before servicing or repairing equipment. This includes shutting off and locking-out the electrical power source of the equipment.
  • Page 12: Blocks

    Tower Series Operations Manual Blocks Suitable blocks are another important safety device for making a piece of equipment safe to be repaired or serviced. Blocks must be placed under raised dies, lifts, or any equipment that might inadvertently move by sliding, falling, or rolling.
  • Page 13 Tower Series Operations Manual...
  • Page 14: Specifications

    Tower Series Operations Manual Section Specifications 10' Tower Specifications Model 10530 10740 10950 101160 101375 34'-5" 42'-3" 50'-4" 58'-5" 66'-5" Total Height 9'-9" 9'-9" 9'-9" 9'-9" 9'-9" Outside Column Diameter Grain Column Thickness 12" 12" 12" 12" 12" Heat Section Holding Capacity...
  • Page 15 Tower Series Operations Manual 2.2 Specifications DOC-T01-0214...
  • Page 16 Tower Series Operations Manual Specifications 2.3 DOC-T01-0214...
  • Page 17 Tower Series Operations Manual 2.4 Specifications DOC-T01-0214...
  • Page 18 Tower Series Operations Manual Specifications 2.5 DOC-T01-0214...
  • Page 19 Tower Series Operations Manual 2.6 Specifications DOC-T01-0214...
  • Page 20: 12' Tower Specifications

    Tower Series Operations Manual 12' Tower Specifications Model 2000 2400 2700 Heat Section Holding Capacity (bu) 1,211 1,453 1,574 Cool Section Holding Capacity (bu) Addition Holding Capacity (bu) Total Height Fill Height Diameter 11'-8" 11'-8" 11'-8" Grain Column Thickness 12"...
  • Page 21 Tower Series Operations Manual 2.8 Specifications DOC-T01-0214...
  • Page 22 Tower Series Operations Manual Specifications 2.9 DOC-T01-0214...
  • Page 23 Tower Series Operations Manual 2.10 Specifications DOC-T01-0214...
  • Page 24: 18' Tower Specifications

    Tower Series Operations Manual 18' Tower Specifications Model 3000 3500 4000 4800 Heat Section Holding Capacity (bu) 2,092 2,343 2,5494 2,888 Cool Section Holding Capacity (bu) Additional Holding Capacity (bu) Total Holding Capacity (bu) 3,711 3,962 4,339 4,633 Total Height 83'-8"...
  • Page 25 Tower Series Operations Manual 2.12 Equipment Overview DOC-T01-0214...
  • Page 26 Tower Series Operations Manual Equipment Overview 2.13 DOC-T01-0214...
  • Page 27 Tower Series Operations Manual 2.14 Equipment Overview DOC-T01-0214...
  • Page 28 Tower Series Operations Manual Equipment Overview 2.15 DOC-T01-0214...
  • Page 29 Tower Series Operations Manual 2.16 Equipment Overview DOC-T01-0214...
  • Page 30: Equipment Overview

    Tower Series Operations Manual Section Equipment Overview The Equipment Overview section will help identify parts of the dryer and briefly explain their function. The images will physically show you what the component(s) look like and the description following will state their purpose.
  • Page 31: Proximity Switch

    Tower Series Operations Manual Rotary (Bin) Fill Switch The Rotary Fill Switch is located in the wet hopper and is powered by 120V. The switch is motorized and will rotate a paddle until wet grain comes in contact with the paddle.
  • Page 32: High Voltage Cabinet

    Tower Series Operations Manual High Voltage Cabinet The High Voltage Cabinet contains all of the motor starters and protectors, main power disconnect, programmable logic controller (PLC), breakers, relays, and other associated electrical hardware. 10' Tower High Voltage Cabinet The 10' Tower High Voltage Cabinet has two main variations which include a direct start and a soft start...
  • Page 33: 12' Tower High Voltage Cabinet

    Tower Series Operations Manual 12' Tower High Voltage Cabinet The 12' Tower High Voltage Cabinet has two main variations which include a direct start and a soft start option: Dryer Stack Light Main Disconnect Handle Emergency Stop Button Door Handle...
  • Page 34: 18' Tower Tri-Start

    Tower Series Operations Manual 18' Tower Tri-Start The 18' Tower High Voltage Cabinet features a tri-start motor control system: Dryer Stack Light Main Disconnect Handle Emergency Stop Button Door Handle Din Rail Ethernet Module Analog I/O PLC CPU Main Disconnect...
  • Page 35: Pinnacle Lite Remote Cabinet

    Tower Series Operations Manual Pinnacle Lite Remote Cabinet The Pinnacle Lite Remote Cabinet is where all of the dryer controls are located including the Pinnacle Lite HMI touch screen, power switches and indicator lights, as well as fan, burner, fill and discharge controls.
  • Page 36: Pinnacle Remote Cabinet

    Tower Series Operations Manual Pinnacle Remote Cabinet The Pinnacle Remote Cabinet houses the Pinnacle (if equipped) HMI touch screen. Depending on the configuration of the machine, the remote cabinet will feature either the Pinnacle Lite control system or the Pinnacle control system.
  • Page 37: Temperature Control Cabinet

    Tower Series Operations Manual Temperature Control Cabinet The Temperature Control Cabinet, mounted on the gas train, houses the digital temperature controller as well as the required relays and terminals. This cabinet has a see through door so that the components, including the plenum temperature controller, can be monitored without opening the door.
  • Page 38: Ignition Cabinet

    Tower Series Operations Manual Ignition Cabinet The Ignition Cabinet houses the ignition board (10' tower) or the ignition transformer (12' and 18' tower) and the high limit switch. 10' Tower Ignition Cabinet The 10' Tower Ignition Cabinet houses the ignition board and the high limit switch.
  • Page 39: 12' /18' Tower Ignition Cabinet

    Tower Series Operations Manual 12' /18' Tower Ignition Cabinet The 12' / 18' Tower Ignition Cabinet houses the ignition transformer and the high limit switch. Ignition Transformer High Limit Switch Terminal Blocks Ignition Transformer The Ignition Transformer supplies the high voltage to the spark plug to ignite the burner.
  • Page 40: Vfd Control Box

    Tower Series Operations Manual VFD Control Box The VFD Control Box, mounted to the base of the dryer, houses the Variable Frequency Drive (VFD) as well as the air pressure switch(es) and the control power transformer. Control Power Transformer Variable Frequency Drive...
  • Page 41: Discharge Moisture Sampler

    Tower Series Operations Manual Discharge Moisture Sampler The discharge moisture sampler is used to continuously collect a sample of grain, move it past the discharge moisture sensor in a controlled and steady fashion, and return the sampled grain back to the discharge of the dryer.
  • Page 42: Gas Train

    Tower Series Operations Manual Gas Train The purpose of the gas train is to safely and efficiently supply fuel at the correct pressure and flow rate to the burner. There are different variations of the gas train depending on what model and options are equipped on the machine.
  • Page 43: 12' Tower Lpg Gas Train

    Tower Series Operations Manual 12' Tower LPG Gas Train Solenoid Valve Maxon Shut-Off Valve Control Valve Actuator Control Valve Pressure Regulator Manual Hand Valve Temperature Control Cabinet 12' Tower NG Gas Train Solenoid Valve Maxon Shut-Off Valve Control Valve Actuator...
  • Page 44: 18' Tower Gas Train

    Tower Series Operations Manual 18' Tower Gas Train Control Valve Actuator Solenoid Valve Control Valve Maxon Shut-Off Valve Pressure Regulator Manual Hand Valve Temperature Control Cabinet Equipment Overview 3.15 DOC-T01-0214...
  • Page 45 Tower Series Operations Manual Control Valve The Control Valve is a throttling butterfly valve that controls the fuel flow rate to the burner which is precisely positioned by the control valve actuator. The control valve is connected to the control valve actuator through a mechanical linkage.
  • Page 46: Burner

    Tower Series Operations Manual Burner The burner, which consists of a cast iron burner body drilled to discharge gaseous fuel between diverging stainless steel mixing plates, is a burner which efficiently combusts the fuel/air mixture thereby producing the required process heat to the drying air.
  • Page 47 Tower Series Operations Manual...
  • Page 48: Operating Procedures

    Tower Series Operations Manual Section Operating Procedures Overview This section will explain the operation of the primary components of the dryer as well as provide step-by- step procedures to properly start-up and shut-down the machine. Operational and functional descriptions along with adjustment details for primary components will be presented initially, followed by operational procedures for starting up and shutting down the dryer.
  • Page 49: Switch Adjustment

    Tower Series Operations Manual Setpoint Check The following procedure shall be utilized to properly check the air pressure switch(es) setpoint. Note that the air pressure switch for each fan/burner must be checked and set independently. 1. After the dryer has been filled with grain and before the burner is ignited, the operation of each air pressure switch must be checked.
  • Page 50 Tower Series Operations Manual High Limit Switch Ignition Box The safety features associated with the high limit switch(es) are for your safety and for the protection of the dryer. They should be checked for correct operation at the start of the drying season and periodically during the season as they are designed to protect the dryer from a fire that may result from fan (air flow) failure while the burner is ignited and a flame is present.
  • Page 51: Grain Fill System (Applies To Pinnacle Lite Control System Only)

    Tower Series Operations Manual Grain Fill System (applies to Pinnacle Lite Control System only) The dryer control system features both a manual and an automatic grain filling system. To properly fill the dryer and to measure the grain level, the dryer is equipped with a rotary (bin) level switch and two timers (grain flow timer and fill delay timer) located in the Remote Cabinet.
  • Page 52 Tower Series Operations Manual AUTO When the grain fill switch is in the AUTO position, the grain fill system is setup to run automatically. Setting the grain fill system to run automatically means that the grain flow timer and the fill delay timer are used in conjunction with the level auger and the rotary (bin) level switch to fill the dryer.
  • Page 53: Temperature Controller (Applies To Pinnacle Lite Control System Only)

    Temperature Controller Programs The temperature controller is pre-programmed from the Mathews Company facility with one of six different programs: Tower, Tower (metric), Profile, Profile (metric), Fuel Oil, and Fuel Oil (metric). The program that is loaded on the controller establishes parameters that are specific to the type of machine the controller is installed on and determines the units of display (degrees Celsius or degrees Fahrenheit).
  • Page 54 Tower Series Operations Manual Program Parameter Function Display Name Name Level Default Values Tower Tower (Metric) Device inPt nonE Units unit nonE Low Limit Lo.SC High Limit hi.SC varies Proportional bAnd Integral int.t Derivative der.T Cycle Time CYC.t Output 1 SP1.d...
  • Page 55 Tower Series Operations Manual Adjustments All parameters for the temperature controller can be adjusted when it is powered up and operational. While the controller is in the main operating mode, the display will show two numbers; the top number is the actual temperature detected by the thermocouple in the plenum, whereas the bottom number shows the current temperature setpoint.
  • Page 56 Tower Series Operations Manual Alarms The temperature controller not only controls the temperature in the plenum, but it also provide low temperature and high temperature alarms. When the plenum temperature drops below the low temperature setpoint or rises above the high temperature setpoint, an alarm condition will occur. The low and high temperature setpoint parameters are established in the program loaded on the controller as explained in the Programs section.
  • Page 57: Variable Frequency Drive (Vfd)

    Tower Series Operations Manual Variable Frequency Drive (VFD) The purpose of the variable frequency drive is to control the speed of the discharge sweep system. The table below is the M-C settings that comes standard from the factory. Variable Frequency Drive Parameters For 10' Tower, 208V/3-Phase...
  • Page 58 Tower Series Operations Manual Variable Frequency Drive Parameters For 10' Tower, 230V/3-Phase Parameter Number Description M-C Setting Factory Default Group 99 Start Up Data 9901 Language English English 9902 Applied Macro ABB Standard None 9904 Motor Control Mode Scalar - Freq...
  • Page 59 Tower Series Operations Manual Variable Frequency Drive Parameters For 10' Tower, 380V/3-Phase Parameter Number Description M-C Setting Factory Default Group 99 Start Up Data 9901 Language English English 9902 Applied Macro ABB Standard None 9904 Motor Control Mode Scalar - Freq...
  • Page 60 Tower Series Operations Manual Variable Frequency Drive Parameters For 10' Tower, 460V/3-Phase Parameter Number Description M-C Setting Factory Default Group 99 Start Up Data 9901 Language English English 9902 Applied Macro ABB Standard None 9904 Motor Control Mode Scalar - Freq...
  • Page 61 Tower Series Operations Manual Variable Frequency Drive Parameters For 10' Tower, 575V/3-Phase Parameter Number Description M-C Setting Factory Default Group 99 Start Up Data 9901 Language English English 9902 Applied Macro ABB Standard None 9904 Motor Control Mode Vector - Speed...
  • Page 62 Tower Series Operations Manual Variable Frequency Drive Parameters For 10' Tower, 230V/1-Phase Parameter Number Description M-C Setting Factory Default Group 99 Start Up Data 9901 Language English English 9902 Applied Macro ABB Standard None 9904 Motor Control Mode Scalar - Freq...
  • Page 63 Tower Series Operations Manual Variable Frequency Drive Parameters For 10' Tower, 460V/1-Phase Parameter Number Description M-C Setting Factory Default Group 99 Start Up Data 9901 Language English English 9902 Applied Macro ABB Standard None 9904 Motor Control Mode Scalar - Freq...
  • Page 64 Tower Series Operations Manual Variable Frequency Drive Parameters For 12' Tower, 208V/3-Phase Parameter Number Description M-C Setting Factory Default Group 99 Start Up Data 9901 Language English English 9902 Applied Macro ABB Standard None 9904 Motor Control Mode Scalar - Freq...
  • Page 65 Tower Series Operations Manual Variable Frequency Drive Parameters For 12' Tower, 230V/3-Phase Parameter Number Description M-C Setting Factory Default Group 99 Start Up Data 9901 Language English English 9902 Applied Macro ABB Standard None 9904 Motor Control Mode Scalar - Freq...
  • Page 66 Tower Series Operations Manual Variable Frequency Drive Parameters For 12' Tower, 460V/3-Phase Parameter Number Description M-C Setting Factory Default Group 99 Start Up Data 9901 Language English English 9902 Applied Macro ABB Standard None 9904 Motor Control Mode Scalar - Freq...
  • Page 67 Tower Series Operations Manual Variable Frequency Drive Parameters For 12' Tower, 575V/3-Phase Parameter Number Description M-C Setting Factory Default Group 99 Start Up Data 9901 Language English English 9902 Applied Macro ABB Standard None 9904 Motor Control Mode Vector - Speed...
  • Page 68 Tower Series Operations Manual Variable Frequency Drive Parameters For 18' Tower, 208V/3-Phase Parameter Number Description M-C Setting Factory Default Group 99 Start Up Data 9901 Language English English 9902 Applied Macro ABB Standard None 9904 Motor Control Mode Scalar - Freq...
  • Page 69 Tower Series Operations Manual Variable Frequency Drive Parameters For 18' Tower, 230V/3-Phase Parameter Number Description M-C Setting Factory Default Group 99 Start Up Data 9901 Language English English 9902 Applied Macro ABB Standard None 9904 Motor Control Mode Scalar - Freq...
  • Page 70 Tower Series Operations Manual Variable Frequency Drive Parameters For 18' Tower, 460V/3-Phase Parameter Number Description M-C Setting Factory Default Group 99 Start Up Data 9901 Language English English 9902 Applied Macro ABB Standard None 9904 Motor Control Mode Scalar - Freq...
  • Page 71: Changing Variable Frequency Drive Parameters

    Tower Series Operations Manual Changing Variable Frequency Drive Parameters 1. To go the Main menu, press if the bottom line shows OUTPUT; otherwise press repeatedly until you see MENU at the bottom 2. Press Keys until you see "PAr" and press 3.
  • Page 72: Soft Starter Parameters

    Tower Series Operations Manual Soft Starter Parameters The purpose of the soft starter is to control the ramp speed of the fan motor in order to reduce the stress the motor experiences during startup . The table below is the M-C settings that comes standard from the M-C factory.
  • Page 73 Tower Series Operations Manual Navigating Soft Starter Parameters The menu is navigated by the keypad. The Navigation keys are used to scroll up or down. The Select key is used to select a setting and save. The Exit key is used to cancel without selecting or saving a setting, and go to a higher level of the menu, as illustrated in the figure below.
  • Page 74 Tower Series Operations Manual Operating Procedures 4.27 DOC-T01-0214...
  • Page 75: Operational Procedures

    Tower Series Operations Manual Operational Procedures The following operational procedures provide a step-by-step guide to starting-up and shutting-down your Pinnacle Lite equipped dryer only. These procedures should be followed and used in conjunction with the Pinnacle Lite Controls Manual for HMI touchscreen adjustments.
  • Page 76: Daily Shut-Down (Applies To Pinnacle Lite Control System Only)

    Tower Series Operations Manual position and release to the ON position. The switch should illuminate and your takeaway equipment should start running. On the Remote Control Cabinet, turn the Metering switch to the ON position. The sweep system should start immediately and the switch should illuminate. The dryer is now discharging grain and the discharge rate will be established by the Pinnacle Lite Control System.
  • Page 77: Daily Start

    Tower Series Operations Manual Daily Start-Up This start-up procedure assumes that the dryer has recently been in operation and is full of grain. For a first time start-up, see the Daily Start-Up procedure portion of this section of the manual.
  • Page 78 Tower Series Operations Manual 3. Close the manual hand valves supplying fuel to the dryer. This will ensure the burner will run until all of the fuel in the line has been cleared out. Once the burner is extinguished, turn the ignition switch to the OFF position on the Remote Control Cabinet.
  • Page 79: Suggested Plenum Temperatures

    Tower Series Operations Manual Suggested Plenum Temperatures Below are suggested plenum drying temperatures for a variety of grain types. These numbers represent the plenum temperature within the heat chamber. Plenum Drying Temperature Corn Sorghum & Wheat Model Plenum Number deg F...
  • Page 80: Maintenance

    This section of the manual will explain the factory recommended maintenance and cleaning requirements to keep your Mathews Company grain dryer running efficiently. Failure to follow or comply with these recommendations will impact dryer performance and may limit or void your warranty.
  • Page 81: Fans & Burners

    Tower Series Operations Manual Fans & Burners The following procedure will guide you through the fan and burner system pre-season check. If the results of any of the following procedures are not consistent with what you should observe, service and/or replacement parts may be required.
  • Page 82: Lubrication

    Tower Series Operations Manual Lubrication Maintaining proper lubrication of all moving components of your dryer is key to its efficient and safe operation. The following table below outlines all recommended lubrication. Note that some of the items may not be applicable based on configured options, model or accessories.
  • Page 83: Outer Screens

    Tower Series Operations Manual Outer Screens The outer screens of the dryer need to be kept as clean as possible for safety and performance reasons. The perforation of the screens allow heated air, saturated with moisture from the grain, to exit to the atmosphere.
  • Page 84: Troubleshooting

    Tower Series Operations Manual Section Troubleshooting The Troubleshooting section will help with diagnosing your dryer in case of a dryer shut down. This section will explain situations that you may run into and will help you come up with a resolution to get your dryer back to operation.
  • Page 85 Tower Series Operations Manual • If the end-user has pulled the jumper and installed take away and fill equipment into the safety circuit, check to see if the customer’s remote starter equipment needs to be reset. • In the High Voltage Cabinet place the second lead on TBC6, if it shows 120-volts then move onto the next step.
  • Page 86: Safety Circuit Schematic

    The safety circuit below will help you diagnose a dryer shut down. This is used to help diagnose the main components on your Mathews Company grain dryer that are linked in a series to insure safety. 10' Tower Pinnacle Lite Safety Circuit Schematic Troubleshooting 6.3...
  • Page 87: 10' Tower Pinnacle Safety Circuit Schematic

    Tower Series Operations Manual 10' Tower Pinnacle Safety Circuit Schematic 6.4 Troubleshooting DOC-T01-0214...
  • Page 88: 12' Tower Pinnacle Lite Safety Circuit Schematic

    Tower Series Operations Manual 12' Tower Pinnacle Lite Safety Circuit Schematic Troubleshooting 6.5 DOC-T01-0214...
  • Page 89: 12' Tower Pinnacle Safety Circuit Schematic

    Tower Series Operations Manual 12' Tower Pinnacle Safety Circuit Schematic 6.6 Troubleshooting DOC-T01-0214...
  • Page 90: 18' Tower Pinnacle Lite Safety Circuit Schematic

    Tower Series Operations Manual 18' Tower Pinnacle Lite Safety Circuit Schematic Troubleshooting 6.7 DOC-T01-0214...
  • Page 91: 18' Tower Pinnacle Safety Circuit Schematic

    Tower Series Operations Manual 18' Tower Pinnacle Safety Circuit Schematic 6.8 Troubleshooting DOC-T01-0214...
  • Page 92: Customer Interface

    Tower Series Operations Manual Customer Interface Customer connections are for remote equipment, and are used to interface the grain dryer with your fill and takeaway equipment. The grain dryer does not supply power for these interfaces. An auxiliary power source should be used to power your equipment.
  • Page 93: Plenum Temperature Will Not Hold Satisfactorily

    Tower Series Operations Manual Plenum Temperature Will Not Hold Satisfactorily • Adjust the gas pressure (Lower for Overshoot : Higher for Low Temp). • Loosen the linkage on the arm connecting the modutrol motor and the proportional value. • Then attempt to move the shaft on the butterfly valve to see if the valve is in working order.
  • Page 94: Variable Frequency Drive (Vfd)

    Tower Series Operations Manual Variable Frequency Drive (VFD) In the event that you run into an error code on the variable frequency drive (VFD), listed below are the display faults that will show up on the main display of the drive along with the decription and recommended corrective action.
  • Page 95 Tower Series Operations Manual Panel communication is lost and either: • Drive is in local control mode (the control panel displays LOC), or • Drive is in remote control mode (REM) and is parameterized to accept start/stop, direction or reference from the control panel.
  • Page 96 Tower Series Operations Manual The drive is not detecting a valid encoder signal. Check for and correct: • Encoder presence and proper connection (reverse wired = channel A connected to terminal of channel B or vice versa, loose connection or short circuit).
  • Page 97 Tower Series Operations Manual Drive control board is overheated. The fault trip limit is 88 °C. Check for and correct: • Excessive ambient temperature. CB OVERTEMP • Fan failure. • Obstructions in the air flow. Not for drives with an OMIO control board.
  • Page 98: Soft Starter Fault Codes

    Tower Series Operations Manual Soft Starter Fault Codes In the event that you run into an error code on the soft starter, listed below are the display faults that will show up on the main display of the unit. Ready...
  • Page 99 Tower Series Operations Manual Ready Protection Fault Ready Protection Fault Fault Ready Protection 6.16 Troubleshooting DOC-T01-0214...
  • Page 100 Tower Series Operations Manual Ready Protection Fault Ready Protection Fault Ready Protection Fault Troubleshooting 6.17 DOC-T01-0214...
  • Page 101 Tower Series Operations Manual Ready Protection Fault Ready Protection Fault Ready Protection Fault 6.18 Troubleshooting DOC-T01-0214...
  • Page 102 Tower Series Operations Manual Ready Protection Fault Ready Protection Fault Ready Protection Fault Ready Protection Fault Troubleshooting 6.19 DOC-T01-0214...
  • Page 103: Common Diagnostic Issues

    Tower Series Operations Manual Common Diagnostic Issues If in case that you run into an issue, listed below are common issues that may occur while operating your Mathews Company grain dryer. Problem: Dryer will not reach operating temperature, or it reaches it slowly.
  • Page 104 Tower Series Operations Manual Problem: Burner will not fire, but gauge shows gas pressure. Possible Cause/Solution: 1. Check that the igniter is properly gapped and has a strong spark. 2. Inspect the porcelain and electrodes for damage or cracking. Clean or replace if necessary.
  • Page 105 Tower Series Operations Manual Problem: The burner lights but does not stay on. Possible Cause/Solution: (NOTE: This is most likely due to the flame sensing) 1. Ensure flame sense probe is located in the flame. 2. Inspect the sense wire for damage and for loose or wet connections.
  • Page 106: Notes

    Tower Series Operations Manual Section Notes ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ Notes 7.1 DOC-T01-0214...
  • Page 107 Tower Series Operations Manual ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ 7.2 Notes DOC-T01-0214...
  • Page 108 Tower Series Operations Manual ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ Notes 7.3 DOC-T01-0214...
  • Page 109 Tower Series Operations Manual ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ 7.4 Notes DOC-T01-0214...

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