The third of the six options under System Settings is Grain Fill Settings. By selecting the Grain Fill Settings option, the operator will be taken to a page dedicated to all settings pertaining to the filling the dryer with grain.

Just as can be done on the Control page, the fill system can be started and stopped from the Grain Fill Settings page as well and the buttons behave in the same manner. The Grain Fill Settings page layout is very similar to that of the Takeaway Equipment Settings page.

Fill System

Before moving on to the different features of the Grain Fill Settings page, it is important to have a good understanding of the Grain Fill System and it's design. The design provides versatility to accomdate different dryer sites. Some sites will utilize these features while others will not need to. The features that provide this versatility are the signals and timers. This system provides two signals and four timers.

Fill 2 Signal

The Fill 2 runs the level auger on profile dryers as well as any other equipment that is connected to the Fill 2 signal. Any other equipment that shares the Fill 2 signal will start and stop with the level auger of a profile dryer. Since the tower dryers do not have a level auger, nothing is connected to the Fill 2 signal from the factory. However, the signal is there to be used to run other equipment if so desired.

Fill 1 Signal

The Fill 1 signal is provided for equipment further upstream from Fill 2 equipment. Again, this signal is provided for convenience and is only to be used to run other equipment if so desired.

Grain Flow Timer

This is an adjustable timer that is started once the Grain Fill is started. If the set time for this timer elapses before the Rotary Bin Switch paddle in the hopper stops rotating, it will be assumed there is no more grain to fill the dryer with and the dryer will enter a Cool Down mode.

Fill 1 Start Delay

This is an adjustable timer that is started once the paddle of the Rotary Bin Switch in the hopper begins to rotate. Paddle rotation is used to sense the lack of grain. When the Rotary Bin Switch begins to rotate, the call for grain is started and if equipped, the Fill 2 equipment and level auger will start running. The time entered for the Fill 1 Start Delay is the time that needs to elapse before Fill 1 equipment is turned on.

Fill 1 Stop Delay

The Fill 1 Stop Delay is a timer that decides when to turn the Fill 1 equipment off. The timer starts when the Rotary Bin Switch paddle stops rotating, ending the call for grain. Once the entered time value for this timer expires, the Fill 1 equipment will turn off.

Fill 2 Stop Delay

The Fill 2 Stop Delay is a timer that decides when to stop the Fill 2 equipment and level auger if equipped. After the Fill 1 Stop Delay timer expires, shutting down the Fill 1 equipment, the Fill 2 equipment and level auger will continue to run for the allotted time entered for the Fill 2 Stop Delay timer.

Fill From Empty

This feature is typically used when filling an empty or near empty dryer. Checking the Fill From Empty box ignores the Grain Flow timer, allowing ample time for the dryer to be filled with grain from an empty state. After the dryer is filled, this box is automatically unchecked, allowing the PLC to control the automatic fill cycle of the dryer during operation.

Fill Graphic

This graphic is used to give a real-time illustration of the operating components of the Grain Fill System. When the Grain Fill System is off, nothing on the graphic will be illuminated and the line entering the dryer with the Fill 1 and Fill 2 tags will be white. Once the Grain Fill System is turned on, the Hopper, Fill 1 and Fill 2 will illuminate green. A flashing green graphic of any portion of the Grain Fill System indicates that the equipment for that particular portion of the system is currently running.

Fill Sequencing Chart

The bottom half of the Grain Fill Settings page contains a chart that illustrates the sequencing behind the Grain Fill System and associated timers. The green, horizontal lines within this chart indicate when different operations are starting, running, and shutting down. Under this chart are the previously discussed, adjustable timers used to control the timing of the equipment associated with the Grain Fill System.

Grain Fill Start-Up Sequence

Following the logic of the chart, the grain fill sequence starts with a call for grain. The call for grain comes when the rotary bin switch in the hopper starts rotating, due to the lack of grain. This call for grain starts all equipment associated with Fill 2. It also causes the Fill 1 Start Delay timer to begin its countdown. Once the Fill 1 Start Delay timer expires, all equipment associated with Fill 1 will start.

Grain Fill Shut-Down Sequence

Following the logic of the chart, the shutdown sequence starts when the call for grain ends. When the call for grain ends, the equipment associated with Fill 1 and 2 will continue to run for the duration of the Fill 1 Stop Delay timer. Once the Fill 1 Stop Delay timer expires, all the equipment associated with Fill 1 will turn off but all the equipment associated with Fill 2 will continue to run for the duration of the Fill 2 Stop Delay timer. Once the Fill 2 Stop Delay timer expires, all equipment associated with Fill 2 will stop.

At the bottom of the Pinnacle 20|20 Home page, there are 3 tabs: System Settings, Historical Data, and Troubleshooting. Pressing any of these 3 tabs will cause the tab to turn blue and a different set of options, shown as blue tiles, to appear. These options will change if a different tab is selected. The Pinnacle 20|20 control system has features that are customizable with several settings that can be changed as necessary. The System Settings tab are where these customizable features can be found. These features will be explained in detail as well as how to properly set them.

The first of the six options under System Settings is Fan Settings. By selecting the Fan Settings option, the operator will be taken to a page dedicated to all settings pertaining to the fans.

Regardless of dryer model, this page will have a section containing the Fan Control buttons and another section containing Cool Down and Takeaway timers. The Tower, ECO, and Delta Fan Settings page also contain quick launch buttons at the bottom for specific components that relate in some way to the fans. This is common on many pages of the Pinnacle 20|20 control. If space allows, there will be quick launches for components that are related to the features on that particular page. Since space is lacking on the Legacy and Fusion Fan Settings page, those quick launches are not present at the bottom.

Fan Control Buttons

On the Fan Settings page are the buttons used to stop and start the fans. The functionality of these buttons is the exact same as the Fan Control buttons on the Control page which was discussed in previously. In addition to the control buttons, there are Air Pressure indicator lights. The Air Pressure indicator light will appear gray when the air pressure switch is not satisfied. However, when the air pressure switch senses enough air pressure to satisfy the switch, the indicator light will illuminate green to confirm this scenario.

Cool Down and Takeaway Timers

On the Fan Settings page, there is a section dedicated a timer associated with the Fan(s) and it is called the Cool Down Timer.

Cool Down Timer

The Cool Down Timer is an adjustable timer that determines the length of time that the dryer will be placed in Cool Down mode following a type-B fault. When activated, the numbers in green font, under Actual, will countdown until the timer expires. At that time, the dryer will shut down.

Takeaway Timer

The Takeaway Timer is an adjustable timer that determines the length of time the takeaway equipment will continue to run after the metering stops.

The fourth of the six options under System Settings is Moisture Sensor Settings. This page contains all settings pertaining to the Moisture Sensors. It is here where the Moisture Sensors can be calibrated as well. The page layout is slightly different between AccuDry and non-AccuDry equipped dryers. Shown below on the left is an AccuDry equipped dryer, while the one on the right is a non-AccuDry dryer.

The Moisture Sensor Settings page is separated into two halves. The top half is dedicated to the inlet moisture sensor while the bottom half is dedicated to the outlet moisture sensor. If the dryer is not equipped with one or more of these sensors, the displayed values will simply be grayed out and read N/A.

Moisture Alarms

The Pinnacle 20|20 control can be set up to alert the operator, or even further, shut the dryer down when grain moistures, detected by the moisture sensors, reach pre-set alarm limits. There are two types of limits: high limits and low limits. There are also two types of alarms: warning alarms and critical alarms. If a warning alarm limit is exceeded, the control will trigger a warning message to be displayed on the HMI screens. If that particular reading continues further off course and exceeds the critical alarm limit, the dryer will shutdown and a critical alarm message will appear on the HMI screens.

Each sensor has it's own table of moisture alarm settings. The Inlet Moisture Alarms table is located at the top, left side of the Moisture Sensor Settings page while the Outlet Moisture Alarms table is located at the bottom, left side of the same page. The adjustable limits are shown in black text, in white boxes. The high limits are at the top of the table while the low limits are at the bottom of the table. Reference the labels to the right of the adjustable limits to decipher between a critical limit and a warning limit. In between the adjustable warning values is the actual grain moisture being read by the moisture sensor.

High Moisture Critical

If the Current Moisture exceeds the value entered for the High Moisture Critical value, the dryer will shut down. The input value for this High Moisture Critical alarm must be equal to or greater than the value entered for the High Moisture Warning value. To expand the allowable input range for the High Moisture Critical value, the High Moisture Warning value may first need to be adjusted.

High Moisture Warning

If the Current Moisture exceeds the value entered for the High Moisture Warning value, the control will display a High Moisture warning message. The input value for this High Moisture Warning alarm must be equal to or less than the value entered for the High Moisture Critical value. The lowest value allowed for this warning is equal to the Low Moisture Warning value. To expand the allowable input range for the High Moisture Warning value, the High Moisture Critical and Low Moisture Warning values may first need to be adjusted.

Current Moisture

This value is the real time grain moisture value being read by the moisture sensor.

Low Moisture Warning

If the Current Moisture falls below the value entered for the Low Moisture Warning, the control will display a Low Moisture warning message. The input value for this Low Moisture Warning alarm must be equal to or less than the value entered for the High Moisture Warning value. The lowest value allowed for this warning is equal to the Low Moisture Critical value. To expand the allowable input range for the Low Moisture Warning value, the High Moisture Warning and Low Moisture Critical values may first need to be adjusted.

Low Moisture Critical

If the Current Moisture falls below the value entered for the Low Moisture Critical, the dryer will shut down. The input value for this Low Moisture Critical alarm must be equal to or lower than the value entered for the Low Moisture Warning value. To expand the allowable input range for the Low Moisture Critical value, the Low Moisture Warning value may first need to be adjusted.

Temperature Alarms

The Pinnacle 20|20 control can also be set up to alert the operator or even shut the dryer down when grain temperatures, detected by the moisture sensors, reach pre-set alarm limits. As previously mentioned, there are high and low limits and there are critical and warning alarms.

Each sensor has it's own table of temperature alarm settings. The Inlet Temperature Alarms table is located at the top, right side of the Moisture Sensor Settings page while the Outlet Temperature Alarms table is located at the bottom, right side of the same page. The adjustable limits are shown in black text, in white boxes. The high limits are at the top of the table while the low limits are at the bottom of the table. Reference the labels to the right of the adjustable limit to decipher between a critical limit and a warning limit. In between the adjustable warning values is the actual grain temperature being read by the moisture sensor.

High Temp Critical

If the Current Temp exceeds the value entered for the High Temp Critical value, the dryer will shut down. The input value for this High Temp Critical alarm must be equal to or greater than the value entered for the High Temp Warning value. To expand the allowable input range for the High Temp Critical value, the High Temp Warning value may first need to be adjusted.

High Temp Warning

If the Current Temp exceeds the value entered for the High Temp Warning value, the control will display a High Temp warning message. The input value for this High Temp Warning alarm must be equal to or less than the value entered for the High Temp Critical value. The lowest value allowed for this warning is equal to the Low Temp Warning value. To expand the allowable input range for the High Temp Warning value, the High Temp Critical and Low Temp Warning values may first need to be adjusted. Current Temp This value is the real time grain Temp value being read by the Moisture sensor.

Current Temp

This value is the real time grain Temp value being read by the Moisture sensor.

Low Temp Warning

If the Current Temp falls below the value entered for the Low Temp Warning, the control will display a Low Temp warning message. The input value for this Low Temp Warning alarm must be equal to or less than the value entered for the High Temp Warning value. The lowest value allowed for this warning is equal to the Low Temp Critical value. To expand the allowable input range for the Low Temp Warning value, the High Temp Warning and Low Temp Critical values may first need to be adjusted.

Low Temp Critical

If the Current Temp falls below the value entered for the Low Temp Critical, the dryer will shut down. The input value for this Low Temp Critical alarm must be equal to or lower than the value entered for the Low Temp Warning value. To expand the allowable input range for the Low Temp Critical value, the Low Temp Warning value may first need to be adjusted.

Sensor Calibration

The sensor calibration procedure varies slightly between AccuDry equipped and non-AccuDry dryers. Below are the procedures for both variations.

Inlet Sensor, AccuDry

To calibrate the Inlet moisture sensor, press the “Start Calibration” button to the left of the Inlet Sensor Calibration tile. This will prompt the system to measure the grain moisture for 30 seconds, which will be indicated by the "Wait" indicator blinking green. Meanwhile, obtain a lab measurement of current Inlet grain. When the “Ready” button illuminates green, enter the lab measured values in the white box labeled “Lab Measured Moisture”. Once entered, press “Confirm Calibration” to complete the calibration process. When the “Start Calibration” button is pressed, the text for this button will change to “Cancel Calibration”, allowing the operator to cancel the calibration if desired. Note that the calibration process allows for a maximum of 0.5% calibration per calibration. If the sensor is off by 2%, the sensor will need to be calibrated 4 times.

Outlet Sensor, AccuDry

To calibrate the outlet moisture sensor, press the “Start Calibration” button, to the left of the Outlet Sensor Calibration box. This will prompt the system to measure the grain moisture for 30 seconds, which will be indicated by the "Wait" indicator blinking green. Meanwhile, obtain a lab measurement of current Outlet grain. When the “Ready” button illuminates green, enter the lab measured values in the white box labeled “Lab Measured Moisture”. Once entered, press “Confirm Calibration” to complete the calibration process. When the “Start Calibration” button is pressed, the text for this button will change to “Cancel Calibration”, allowing the operator to cancel the calibration if desired. Note that the calibration process allows for a maximum of 0.5% calibration per calibration. If the sensor is off by 2%, the sensor will need to be calibrated 4 times.

Inlet Sensor, non-AccuDry

To calibrate the Inlet moisture sensor for a non-AccuDry dryer, obtain a lab measurement of current Inlet grain. Press the white box labeled “Lab Measured Moisture” and enter the recently obtained lab measured value. Press the Calibrate button to calibrate or the Cancel button to cancel the calibration. Note that the calibration process allows for a maximum of 0.5% calibration per calibration. If the sensor is off by 2%, the sensor will need to be calibrated 4 times.

Outlet Sensor, non-AccuDry

To calibrate the Outlet moisture sensor for a non-AccuDry dryer, obtain a lab measurement of current Outlet grain. Press the white box labeled “Lab Measured Moisture” and enter the recently obtained lab measured value. Press the Calibrate button to calibrate or the Cancel button to cancel the calibration. Note that the calibration process allows for a maximum of 0.5% calibration per calibration. If the sensor is off by 2%, the sensor will need to be calibrated 4 times.

Regardless of which discharge mode settings page is displayed, the operator can change the discharge mode from any one of them. However, it is important to understand that in order to change discharge modes, the operator must be in Manual mode first before changing to any of the other available modes. For instance, if the dryer is currently discharging in AccuDry mode and the operator wants to change to TruDry mode, the operator must first select Manual mode, and then select TruDry mode.

In addition to being able to select the mode of discharge from any of these pages, the Manual, TruDry and AccuDry Settings pages also all contain the same information for the following tiles: Disch Speed, Disch Speed Alarms, and Mid-Grain Temperature Alarms.

Manual Settings

When discharging in Manual mode, the operator controls the speed at which the grain discharges at. This adjustable value is under the Manual Settings tile, next to the Set Discharge Speed, input box.

VFD Frequency = 6 Hz

VFD Frequency = 12 Hz

Each dryer model has a discharge capacity for every revolution of the metering rolls for profile dryers and sweep for tower dryers. These discharge capacities are used to calculate how much grain is being discharged from the dryer given a specific discharge speed. The chart below shows what these discharge capacities are in bushels per revolution and cubic meters per revolution.

VFD Frequency = 18 Hz

VFD Frequency = 36 Hz

VFD Frequency = 54 Hz

The fifth of the six options under System Settings is Burner Settings. This page contains all settings pertaining to the Burners and plenum temperature.

The Burner Settings page layout will vary depending on the model of dryer. For Legacy dryers, there are toggle buttons at the bottom of the page. These toggle buttons are used to take the operator to the burner settings for burners 1 through 4 and for burners 5 through 8. Note that the burners are labeled in an ascending manner, starting with 1 to indicate the bottom-most burner on the dryer. The ECO, Tower and Delta dryer Burner Settings page layout will have component, quick launch buttons at the bottom of the page instead. The components listed there are for convenience and are related to the burner or ignition process. The Fusion will just have the Alarm Band at the bottom with no room to accommodate these quick launch buttons.

The burners can be started from the Burner Settings page for Tower dryers. They are started in the same manner as what was described previously in the Control tile, Fans & Burners. The ability to start and stop the burners from the Burner Settings page is not possible for ECO, Legacy, Fusion and Delta dryers. This must be done from the Controls page.

Plenum Temp

The Burner Settings page displays information pertaining to the burner in 3 separate columns. The first column is the Plenum Temp. There are two values displayed: an actual plenum temperature value being read by the plenum RTD and a set value, that the operator can adjust to meet their desired plenum temperature.

Valve % Opening

The second column is the Valve % Opening. The Valve % Opening refers to the modulating valve that controls the flow of gas to the burner. It is here where the operator can set the initial valve percent opening. The initial valve percent opening is the amount the modulating valve will open upon starting the burner. Two other adjustable values the operator can enter are the max and min. The max and min values are the maximum and minimum percent the valve will open during operation. The value in between the min and max values is the actual valve percent opening the modulating value is currently open to.

Mode

The last column is a heat/cool indicator. This indicates whether the plenum is considered a heat zone or a cool zone by the AccuDry software. When the indicator globe is blue, it indicates a cool zone. When the indicator globe is red, it indicates a heat zone. The value entered as the "Dryer Off Temp" determines whether the burner is considered off or on. Access to the "Dryer Off Temp" value is through the Service Screens, in the AccuDry Settings page. If the actual plenum temperature is lower than this value, the mode will appear with the circular indicator globe colored blue. If the actual plenum temperature is above this value, the circular indicator globe will appear red.

VFD Frequency = 30 Hz

VFD Frequency = 60 Hz

VFD Frequency = 24 Hz

Depending on the model dryer, the % discharge speed will correspond to an approximate bu/hr or metric tonnes/hr value for a known discharge capacity. The table below correlates discharge speed % to bu/hr based for the moisture removal (5pt or 10pt) and mode of operation (All-Heat or Heat+Cool) stated above.

Depending on the model dryer, the % discharge speed will correspond to an approximate bu/hr or metric tonnes/hr value for a known discharge capacity. The table below correlates discharge speed % to bu/hr based for the moisture removal (5pt or 10pt) and mode of operation (All-Heat or Heat+Cool) stated above.

VFD Frequency = 48 Hz

Depending on the model dryer, the % discharge speed will correspond to an approximate bu/hr or metric tonnes/hr value for a known discharge capacity. The table below correlates discharge speed % to bu/hr based for the moisture removal (5pt or 10pt) and mode of operation (All-Heat or Heat+Cool) stated above.

The second of the six options under System Settings is Takeaway Equipment Settings. By selecting the Takeaway Equipment Settings option, the operator will be taken to a page dedicated to all settings pertaining to the takeaway.

Just as can be done on the Control page, the discharge system can be started and stopped from the Takeaway Equipment Settings page as well and the buttons behave in the same manner.

Discharge Speed

The upper section of the Takeaway Equipment Settings page features a rendering of the takeaway portion of the dryer as well as some values in boxes labeled Discharge Speed. It is in the box labeled "Act" where the actual metering, or sweep speed, is shown and in the box labeled "Set" where that speed can be changed provided the dryer is discharging in manual mode.

Discharge System

It is important to have a good understanding of the discharge system and it's design. This design provides versatility for different dryer sites. Some sites will utilize the features and components that make this system versatile while others will not need to. The features that provide this versatility are the signals and timers. This system provides two signals. They are named Takeaway 1 and Takeaway 2.

Takeaway 1 Signal

The Takeaway 1 signal runs the discharge auger on profile dryers as well as any other equipment that is connected to it. Any other equipment that shares the Takeaway 1 signal will start and stop with the discharge auger of a profile dryer. Since the tower dryers do not have a discharge auger, nothing is connected to the Takeaway 1 signal from the factory. However, the signal is there to be used to run other equipment if so desired.

Takeaway 2 Signal

The Takeaway 2 signal is meant for equipment further downstream from equipment tied to the Takeaway 1 signal. Again, this signal is provided for convenience and is only to be used to run other equipment if so desired. In addition to these signals are two, PLC timers. These timers, the Takeaway 1 Start Delay timer and the Takeaway 2 Stop Delay timer, are both adjustable.

Takeaway 1 Start Delay

This is an adjustable timer inside the PLC that delays the start of the dyer’s metering system. The timer starts its countdown once the Takeaway Start button is pressed and equipment tied to the Takeaway 2 signal starts operating. When the timer expires all equipment using the Takeaway 1 signal will start.

Takeaway 2 Stop Delay

This is an adjustable timer inside the PLC that determines how long to run the Takeaway 2 equipment after the Takeaway Stop button has been pressed. The timer starts once the Takeaway Stop button has been pressed and continues to run the Takeaway 2 equipment until the timer expires.

Takeaway 1 and 2 Jog

These two jog buttons enable the user to momentarily turn equipment on that are tied to these signals. This is useful when there is a backup or blockage of grain. Pressing and holding the Takeaway 1 Jog button will turn on all equipment tied to the Takeaway 1 signal for as long as the button is pressed. Releasing the button will stop the equipment. The Takeaway 2 Jog button works the same way for equipment tied to the Takeaway 2 signal.

Metering

The metering buttons only control the metering. They do not control the takeaway.

Discharge Graphic

This graphic is used to give a real-time illustration of the operating components of the discharge system. When the discharge system is off, nothing on the graphic will be illuminated and the line exiting the dryer with the Takeaway tags will be white. Once the Discharge system is turned on, the Metering, along with the line exiting the dryer with the Takeaway tags will illuminate green. A flashing green graphic of any portion of the Discharge system indicates that the equipment for that particular portion of the system is currently running.

Discharge Sequencing Chart

The bottom half of the Takeaway Equipment Settings page contains a chart that illustrates the sequencing of the discharge system and associated timers. The green, horizontal lines within this chart indicate when different operations are starting, running, and shutting down. Under this chart are the two, previously discussed, adjustable timers used to control the timing of the equipment associated with the discharge system.

Discharge Start-Up Sequence

Following the logic of the chart, pressing the Discharge start button will cause the start up of the Takeaway 2 equipment. At the same time, the Takeaway 1 Start Delay timer will begin its countdown. Once the countdown expires, the Metering and Takeaway 1 equipment will begin operating.

Discharge Shut-Down Sequence

Following the logic of the chart, pressing the Discharge stop button will immediately stop the metering and equipment associated with Takeaway 1. At the same time, the Takeaway 2 Stop Delay timer will begin its countdown. Once the countdown expires, Takeaway 2 equipment will shut down.