This section of the manual provides information on troubleshooting the Pinnacle 20|20 dryer control system.
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The fourth and fifth buttons under the Service page are the Burners 1 - 4 Settings and Burner's 5 - 8 Settings pages. These pages will only show the values associated with burners equipped on the dryer while the additional burners on these pages will appear grayed out with N/A as values.
The actual and setpoint plenum temperature values are shown for each plenum on this page. Changes to the plenum temperature setpoint can be made here. In addition to these values, there are also PID values displayed here as well. The purpose of the Plenum Temp PID Values is to set the Proportional, Integral, and Derivative parameters of the Plenum Temperature PID control loop. Please note that changes to these parameters will drastically impact the operation of the dryer when controlling the plenum temperature and any settings change should only be done when instructed by Mathews Company service personnel.
For each plenum, the values for the Proportional, Integral, and Derivative parameters can be adjusted. The default values for the Proportional, Integral, and Derivative parameters are recommended to be used. If fine-tune adjustments need to be made, the following explains the impact of each parameter:
The Proportional parameter determines the gain of the control loop based on the difference between the setpoint and the actual value. Adjustment of this parameter will increase or decrease the gain when a difference between the setpoint and actual value is established.
The Integral parameter determines the responsiveness of the control loop from a time standpoint. Adjustment of this parameter will cause the control loop to become more or less responsive.
The Integral parameter determines the amount of dampening that the control loop will exhibit. Adjustment of this parameter will increase or decrease the amount of overshoot that is observed by the control loop.
The second button under the Service Page is the TruDry Settings button. This page allows for adjustments to be made to the variables that control how the TruDry mode operates.
Here the current Mid-Grain Temperature and Discharge Speed are displayed along with the Mid-Grain Temperature set point which can be adjusted. However, the main purpose of this page is to set the Proportional, Integral, and Derivative parameters of the TruDry PID control loop. Please note that changes to these parameters will drastically impact the operation of the dryer when running in TruDry mode and any settings change should only be done when instructed by Mathews Company service personnel.
The default values for the Proportional, Integral, and Derivative parameters are recommended to be used. If fine-tune adjustments need to be made, the following explains the impact of each parameter:
The Proportional parameter determines the gain of the control loop based on the difference between the setpoint and the actual value. Adjustment of this parameter will increase or decrease the gain when a difference between the setpoint and actual value is established.
The Integral parameter determines the responsiveness of the control loop from a time standpoint. Adjustment of this parameter will cause the control loop to become more or less responsive.
The Integral parameter determines the amount of dampening that the control loop will exhibit. Adjustment of this parameter will increase or decrease the amount of overshoot that is observed by the control loop.
The second of the five options under Troubleshooting is Dryer Components. This page allows the user to quickly understand a dryer components function and perhaps, how to set it if necessary.
Only the components that are equipped on the dryer will appear on this screen. If a particular component is not equipped on the dryer, it will appear grayed out on this page.
Clicking on any of the component tiles will bring up a screen, detailing the purpose and function of that component.
A brief description of the components listed on the dryer components page is as follows:
The High Limit Switch utilizes a capillary bulb to sense an over-temperature condition in the plenum which will cause the dryer to shutdown. The high limit setpoint is adjustable on the switch and should be set approximately 40 deg F higher than the plenum temperature setpoint.
The Rotary Fill Switch is located in the wet hopper and is powered by 24VDC. The switch is motorized and will rotate a paddle until wet grain comes in contact with the paddle. Once this happens, grain stops the rotation and proves the level of grain in the hopper.
The Linear Limit Circuit (LLC) Switch is wrapped around the screen section of the dryer and provides a safety shutdown when over-temperature is detected.
The Plenum RTD is a temperature sensing device located in the plenum used to send a signal to the PLC to establish and maintain plenum temperature.
The purpose of the Air Pressure Switch is to prove airflow from the fan for safe operation of the burner. The air pressure switch is adjustable and should be set once the dryer is full of grain. Adjustment of the switch for a profile dryer is done in the burner control cabinet and indication of reaching the air pressure switch's setpoint is indicated on the green light on the outside of the burner control cabinet. For a tower dryer, adjustment of the switch is done in the High Voltage Cabinet and is indicated on the green light on the outside of the High Voltage Cabinet.
The E-Stop buttons are located throughout the dryer and are used to trip the safety circuit and shutdown the dryer when pressed. To reset a pressed E-stop button, simply rotate the spring loaded red button clockwise.
The Control Valve Actuator is an electrical actuator that is connected to the control valve through a mechanical linkage that precisely positions it based on the output of the PLC. As the plenum temperature drops below the setpoint, the PLC tells the control valve actuator to open more, whereas if the plenum temperature rises above the setpoint, the PLC tells the control valve actuator to close more.
The Proximity Switch is used to detect the rotation of the discharge metering system by sensing the proximity of a detector on the discharge metering shaft of profiles and sweep motor for towers. If the rotation goes undetected for a set duration of time, the machine will be shutdown.
The Motor Overloads are located in the high voltage cabinet and are used to protect the motors from excessive current. When excessive current draw is detected, the Motor Overload will trip, cutting power to the motor and protecting it.
The type of Discharge Limit Switch used depends on the type of dryer; Tower or Profile. The towers use the same paddle style as the Rotary Fill Switch while the Profile dryers use a whisker style switch as shown on the left. The purpose of this switch is to detect a discharge grain overload condition that may be a result of a failed discharge auger or takeaway equipment. Once an overload conditions exists, the safety circuit is opened and the dryer is shutdown.
The two Mid-Grain RTD (Resistance Temperature Device) Assemblies are located around the perimeter of the dryer and are used to detect the temperature of the grain in the column. Each of these two RTD assemblies is equipped with a 4-20mA transmitter which provides an analog input signal sent to the PLC.
This sensor has a stainless steel fin that measures the grain moisture indirectly by measuring the capacitance of the field of grain and correlating it to a voltage. It also contains a small temperature probe that is mounted directly under the stainless steel fin on the face of the sensor. This probe also produces an analog voltage measurement of the grain's temperature to compensate the moisture reading and to provide a real-time indication of the grain's temperature.
The VFDs are used to control the speed of the metering and takeaway system and are directly controlled by the PLC.
The Ignition System is comprised of different components, each playing a role in the management of the burners. The Ignition System controls the overall operation of the burners by supplying high voltage from the coils to the spark plugs to ignite the burners, sending signals to open/close the gas valves, and continuously monitoring the presence of a flame for safe and reliable operation.
These switches are used to detect either low gas or high gas pressure in the gas train and shutdown the dryer if required.
The Plenum Door Switch is used to trip the safety circuit, shutting the dryer down in the event a plenum door is opened.
The third of the five options under Troubleshooting is System Configuration. This page is broken into two sections, Dryer Configuration at the top and System Configuration at the bottom.
The Dryer Configuration lists the serial number and the model of the dryer that is loaded in the control.
The System Configuration lists the PLC and HMI versions. This is important information given both the PLC and HMI will develop newer, more enhanced versions of the software as time passes.
It also provides a place where the type of grain being dried can be selected. It is important that the proper grain is selected in order to receive accurate information from the moisture sensors.
Other parameters that can be changed on this page is the date, time, temperature units, discharge units, grain density and the language.
A check box is provided to allow the dryer to be operated remotely by way of M-C Trax. When operating from a remote location, this box must be checked. When a change is made remotely, a pin will be required to be entered. This pin must match the Remote Access 4-Digit pin shown on this page of the HMI.
The fourth of the five options under Troubleshooting is PLC I/O Modules. The PLC and I/O modules are located in the Low Voltage Cabinet. The number of I/O modules depends on the model dryer. On the bottom of the page, only the I/O modules equipped on the dryer will be lit up, and therefore able to be accessed. The grayed out options cannot be accessed as those modules are not equipped on the dryer. Also, the order in which the PLC and I/O modules appear, should match the actual arrangement in which they are physically installed in the Low Voltage Cabinet.
The first option at the bottom of the page is the CPU and is on all Pinnacle 20|20 dryers. The CPU allows up to 14 digital inputs, 10 digital outputs, 2 analog inputs and 2 analog outputs.
The first of the five options under Troubleshooting is Service. Only qualified service personnel have access to these Service screens. Upon pressing the Service tile, a popup screen will appear requiring a password be entered before access to the service screens is granted.
After the correct password is entered, the text and image on the Service button will turn orange and the button itself will be half it's normal size while the service technician is logged in. The button shrinks in order to make room for the Service Logout timer. This timer is a countdown that when expired, will automatically log the service technician out of the service screens.
Touching the Service button again, while logged in will navigate to the first Service page, Configuration & Features.
The Configuration & Features page is where the configuration of the dryer is defined and ships preloaded with the correct Dryer Configuration, Discharge Configuration and Dryer Features selected.
The Dryer Configuration tile contains a "Load Configuration" button. After installing updated software, the user will need to reselect the correct Dryer Series and Model from the dropdown menu's. The series Dryer Series and Model information needs to be loaded on each HMI indivitually. The serial number will also need to be entered in the Serial Number field.
After the dryer series and model are selected, the values in the Discharge Configuration tile will automatically populate with the proper values associated with that particular dryer series and model.
After loading software, the proper Dryer Features will need to be enabled. On the bottom half of the page is where these different features that are equipped on the dryer can be selected. Touching on the square box next to the feature will cause a green check to appear in the box, enabling that particular feature and indicating that the dryer is indeed equipped with that option. It is important to only select the features that are equipped on the dryer. Selecting these options allows the information associated with these features to appear on all the other pages of the control.
The third button under the Service page is the AccuDry Settings page. This page displays the critical values for the AccuDry system to operate effectively.
In this tile, the Garner, Hot Zone Volume, and Cold Zone indicate how many bushels are contained in those parts of the dryer. The Throughput is the speed the dryer needs to run at in order to move the grain currently at the infeed moisture sensor, to the discharge moisture sensor, in exactly 1 hour. These values are dryer specific, and the AccuDry system uses these values to best determine the rate at which the dryer should be operating. These values also play a crucial role in how the AccuDry predicted moisture value is calculated. Although these values can be input manually they are automatically generated when the Dryer Series and Model are selected on the Configuration & Features page.
These tiles are where trained service technicians can manually adjust the DM sensor values. The two values that calculate the moistures are the slope and offset values. The voltage measured by the sensor is mutiplied by the slope and then added to the the offest value of the sensor, resulting in a % moisture value. Here, the technician can save time by manually adjusting the slope (not recommended) and/or offset value (preferred) in order to alleviate the need to calibrate multiple times upon initial setup, due to the 0.5% restriction placed on normal calibration routines. The technician may simply enter the desired offset with a single touch of the button, eliminating the need to calibrate several times.
This tile contains the DM version and serial number of the DM board installed on the dryer. In addition to this are two adjustable values; Dryer Off Rate and Dryer Off Temp.
This is the minimum rate at which the dryer will operate, and it is recommended to remain at 1.0%. This parameter is used to signal the DM510 that the dryer is not discharging and should not be taking any more data. If this is different than the Minimum Operational Discharge Rate, then there is a risk that the system will be calculating dryer operations while shutdown; hurting the overall re-startup time for the next drying run. If this parameter is modified, it is strongly urged that a Mathews Company Engineer or Mathews Company Service Technician is consulted before doing so.
This is used by the DM 510 board in determining whether a plenum is considered a heat zone or cool zone. If the actual plenum temperature is lower than this value, the plenum is considered a cool zone. If the actual plenum temperature is higher than this value, the plenum is considered a heat zone. If the average of the plenum temperatures is under the value entered, the system will not be learning, therefore AccuDry will not be able to be enabled.
For best results, never turn burners on or off while operating in AccuDry mode. Instead, get out of AccuDry mode first, then make these changes before getting back into AccuDry mode.
This tile offers even more information on the DM 510 board including the following:
Feedback from the sensors comparing the predicted moistures versus the actual measured values. This feedback determines how the dryer will control the discharge speed, and should not be modified.
This is the maximum allowed deviation between the actual and predicted values can vary before AccuDry can be enabled. For instance, if the Moist Target Difference is 2.00%, the actual discharge moisture must be within 2.00% of the predicted discharge moisture before AccuDry can be enabled.
This is the maximum allowed deviation between the actual and suggested rate before AccuDry can be enabled. If the Rate Target Difference is 5.00%, the actual discharge rate must be within 5.00% of the suggested discharge rate in order for AccuDry to be enabled.
This indicator light will blink green when the DM Board is communicating with the PLC.
This will illuminate green when the communication between the DM Board and PLC is sensed an adequate number of times within a minute.
The last of the five options under Troubleshooting is Safety Circuit. The Safety Circuit page gives an illustration of the components within the safety circuit and their status.
Again, this screen will look slightly different from dryer model to dryer model given the components that are equipped or not equipped on the dryer. From this page, Control Power can be turned on or off, just as it can be from the Control Page. However, if the safety circuit is not satisfied, Control Power will not be able to be turned on.
Components with green globes next to them indicate components that are good and satisfying that part of the safety circuit. However, if a globe next to the component appears grayed out as opposed to green, that indicates that there is a break in the safety circuit at that particular component. Furthermore, if there is an issue with a component, all components downstream will appear grayed out as well. It is best to check the component that is first in line where the globe is gray. For instance, if the motor overloads are grayed out, the high limits and linear limits (if equipped) will appear grayed out as well. First start troubleshooting the motor overloads, which are upstream from the High Limits and Linear Limits. It is very likely once the issue with the motor overloads are solved, the all other components downstream will glow green as well, satisfying the safety circuit. If not, move on to the next grayed out component downstream and troubleshoot.
The last button under the Service page is the HMI Settings page.
The upper half of this page displays the information associated with the drive used to update the HMI software along with an activation button used when performing the update.
The bottom half of the page displays the Network Settings along with a PLC comms button that illuminates green when the PLC is communicating properly.
| I/O | Name | Description |
|---|---|---|
| I/O | Name | Description |
|---|---|---|
| I/O | Name | Description |
|---|---|---|
| I/O | Name | Description |
|---|---|---|
| I/O | Name | Description |
|---|---|---|
| I/O | Name | Description |
|---|---|---|
| I/O | Name | Description |
|---|---|---|
| I/O | Name | Description |
|---|---|---|
| I/O | Name | Description |
|---|---|---|
Ia.0
Safety Control Relay
When shown in green, the Safety Control Relay is satisfied.
Ia.1
Fan Motor Overload(s) Fault
When shown in green, there are no Fan Motor Overload Faults present.
Ia.2
Takeaway Equipment Status
When shown in green, Takeaway Equipment Status is ready to be started.
Ia.3
Fill Equipment Status
When shown in green, Fill Equipment Status is ready to be started.
Ia.4
Fill Level Signal
When shown in green, there is currently a call for grain.
Ia.5
Proximity Switch
When this blinks green, the proximity switch is sensing the metering target.
Ia.6
E-Stop(s)
When this shows green, all dryer E-Stops are reset. If shown in white, 1 or more dryer E-Stops are depressed and need to be reset.
Ia.7
Customer E-Stop (C5 & C6)
When this shows green, all E-Stops associated with auxiliary equipment are reset. If shown in white, 1 or more E-Stops associated with auxiliary equipment are depressed and need to be reset.
Ib.0
Takeaway Overflow
When shown in green, the takeaway switch does not sense grain backup. If shown in white, grain is causing a backup that the switch detected and the situation should be addressed.
Ib.1
Linear Limits Fault
When shown in green, there are no excessively high temperatures being detected by the Linear Limits. When shown in white, the Linear Limits sense an excessive temperature condition that needs to be addressed.
Ib.2
Plenum Door(s)
When shown in green, the plenum door switches detect the plenum doors are closed. When shown in white, 1 or more plenum doors are open.
Ib.3
High Gas Pressure Fault
When shown in green, there is no high gas pressure situation being detected. If shown in white, a high gas pressure situation is being detected.
Ib.4
Low Gas Pressure Fault
When shown in green, there is no low gas pressure situation being detected. If shown in white, a low gas pressure situation is being detected.
Ib.5
Auxiliary Contactors
Green indicates that the start contactors A and B are turned ON. White means they are OFF.
Qa.0
Fill 1 Equipment On
When shown in green, equipment tied to F3-F4 will run.
Qa.1
Fill 2 Equipment On
When shown in green, equipment tied to F5-F6 will run.
Qa.2
Run Takeaway 1
When shown in green, equipment tied to T3-T4 will run.
Qa.3
Run Takeaway 2
When shown in green, equipment tied to T5-T6 will run
Qa.4
Prime Gas Supply
When shown in green it is commanding the supply gas solenoid to momentarily open to pressurize the gas train to satisfy the low gas pressure requirement.
Qa.5
Control Power On
When shown in green, the Control Power is on.
Qa.6
Reset Safety Relay
Momentary pulse to reset and latch the safety relay
Qa.7
Tri-Start
Turns green for 15 seconds when a command is sent to start auxiliary tri-start equipment.
Qb.0
Run Sampler
Command to run discharge sampling motor.
AI0
Mid-Grain #1 Temp
This is an analog signal that displays the mid-grain temperature being measured at mid-grain probe #1.
AI10
Mid-Grain #2 Temp
This is an analog signal that displays the mid-grain temperature being measured at mid-grain probe #2.
AQ0
Burner #1 Output
This is an analog output used to control the opening of the gas control valve for burner #1.
AQ1
Burner #2 Output
This is an analog output used to control the opening of the gas control valve for burner #2.
AI0
Burner #5 Temp
Indicates the plenum temperature from plenum 5 RTD.
AI1
Burner #6 Temp
Indicates the plenum temperature from plenum 6 RTD.
AI2
Burner #7 Temp
Indicates the plenum temperature from plenum 7 RTD.
AI3
Burner #8 Temp
Indicates the plenum temperature from plenum 8 RTD.
AQ0
Burner #7 Output
This is an analog output used to control the opening of the gas control valve for burner #7.
AQ1
Burner #8 Output
This is an analog output used to control the opening of the gas control valve for burner #8.
AI0
Inlet Moist
Indicates the moisture of the grain flowing across the infeed moisture sensor.
AI1
Inlet Temp
Indicates the temperature of the grain flowing across the infeed moisture sensor.
AI2
Outlet Moist
Indicates the moisture of the grain flowing across the discharge moisture sensor.
AI3
Outlet Temp
Indicates the temperature of the grain flowing across the discharge moisture sensor.
AI4
Burner #1 Temp
Indicates the plenum temperature from plenum 1 RTD.
AI5
Burner #2 Temp
Indicates the plenum temperature from plenum 2 RTD.
AI6
Burner #3 Temp
Indicates the plenum temperature from plenum 3 RTD.
AI7
Burner #4 Temp
Indicates the plenum temperature from plenum 4 RTD.
Ia.0
High Limit #5 Fault
Green indicates that the high limit circuit is complete and is functioning properly for burner 5. White indicates that the high limit setpoint has been reached for burner 5, tripping the high limit switch.
Ia.1
Fan #5 Motor Starter
Green indicates that the auxiliary contact for fan 5 motor starter is ON. If white, it is OFF.
Ia.2
Air Pressure #5
Green indicates that air pressure switch for plenum 5 has been activated and the blower for that plenum is generating sufficient pressure. White indicates low or no pressure.
Ia.3
Burner #5 On
A green signal verifies that a flame is present at burner 5. White signifies the absence of flame
Ia.4
High Limit #6 Fault
Green indicates that the high limit circuit is complete and is functioning properly for burner 6. White indicates that the high limit setpoint has been reached for burner 6, tripping the high limit switch.
Ia.5
Fan #6 Motor Starter
Green indicates that the auxiliary contact for fan 6 motor starter is ON. If white, it is OFF.
Ia.6
Air Pressure #6
Green indicates that air pressure switch for plenum 6 has been activated and the blower for that plenum is generating sufficient pressure. White indicates low or no pressure.
Ia.7
Burner #6 On
A green signal verifies that a flame is present at burner 6. White signifies the absence of flame.
Ib.0
High Limit #7 Fault
Green indicates that the high limit circuit is complete and is functioning properly for burner 7. White indicates that the high limit setpoint has been reached for burner 7, tripping the high limit switch.
Ib.1
Fan #7 Motor Starter
Green indicates that the auxiliary contact for fan 7 motor starter is ON. If white, it is OFF.
Ib.2
Air Pressure #7
Green indicates that air pressure switch for plenum 7 has been activated and the blower for that plenum is generating sufficient pressure. White indicates low or no pressure.
Ib.3
Burner #7 On
A green signal verifies that a flame is present at burner 7. White signifies the absence of flame.
Ib.4
High Limit #8 Fault
Green indicates that the high limit circuit is complete and is functioning properly for burner 8. White indicates that the high limit setpoint has been reached for burner 8, tripping the high limit switch.
Ib.5
Fan #8 Motor Starter
Green indicates that the auxiliary contact for fan 8 motor starter is ON. If white, it is OFF.
Ib.6
Air Pressure #8
Green indicates that air pressure switch for plenum 8 has been activated and the blower for that plenum is generating sufficient pressure. White indicates low or no pressure.
Ib.7
Burner #8 On
A green signal verifies that a flame is present at burner 8. White signifies the absence of flame.
AQ0
Burner Control Signal 3
This is an analog output used to control the opening of the gas control valve for burner #3.
AQ1
Burner Control Signal 4
This is an analog output used to control the opening of the gas control valve for burner #4.
AQ2
Burner Control Signal 5
This is an analog output used to control the opening of the gas control valve for burner #5.
AQ3
Burner Control Signal 6
This is an analog output used to control the opening of the gas control valve for burner #6.
Ia.0
High Limit #1 Fault
Green indicates that the high limit circuit is complete and is functioning properly for burner 1. White indicates that the high limit setpoint has been reached for burner 1, tripping the high limit switch.
Ia.1
Fan #1 Motor Starter
Green indicates that the auxiliary contact for fan 1 motor starter is ON. If white, it is OFF.
Ia.2
Air Pressure #1
Green indicates that air pressure switch for plenum 1 has been activated and the blower for that plenum is generating sufficient pressure. White indicates low or no pressure.
Ia.3
Burner #1 On
A green signal verifies that a flame is present at burner 1. White signifies the absence of flame.
Ia.4
High Limit #2 Fault
Green indicates that the high limit circuit is complete and is functioning properly for burner 2. White indicates that the high limit setpoint has been reached for burner 2, tripping the high limit switch.
Ia.5
Fan #2 Motor Starter
Green indicates that the auxiliary contact for fan 2 motor starter is ON. If white, it is OFF.
Ia.6
Air Pressure #2
Green indicates that air pressure switch for plenum 2 has been activated and the blower for that plenum is generating sufficient pressure. White indicates low or no pressure.
Ia.7
Burner #2 On
A green signal verifies that a flame is present at burner 2. White signifies the absence of flame.
Ib.0
High Limit #3 Fault
Green indicates that the high limit circuit is complete and is functioning properly for burner 3. White indicates that the high limit setpoint has been reached for burner 3, tripping the high limit switch.
Ib.1
Fan #3 Motor Starter
Green indicates that the auxiliary contact for fan 3 motor starter is ON. If white, it is OFF.
Ib.2
Air Pressure #3
Green indicates that air pressure switch for plenum 3 has been activated and the blower for that plenum is generating sufficient pressure. White indicates low or no pressure.
Ib.3
Burner #3 On
A green signal verifies that a flame is present at burner 3. White signifies the absence of flame.
Ib.4
High Limit #4 Fault
Green indicates that the high limit circuit is complete and is functioning properly for burner 4. White indicates that the high limit setpoint has been reached for burner 4, tripping the high limit switch.
Ib.5
Fan #4 Motor Starter
Green indicates that the auxiliary contact for fan 4 motor starter is ON. If white, it is OFF.
Ib.6
Air Pressure #4
Green indicates that air pressure switch for plenum 4 has been activated and the blower for that plenum is generating sufficient pressure. White indicates low or no pressure.
Ib.7
Burner #4
On A green signal verifies that a flame is present at burner 4. White signifies the absence of flame.
Qa.0
Start / Stop Fan #1
Green indicates that fan 1 motor has been commanded to run. White indicates that it has not been commanded to run.
Qa.1
On / Off Ignition #1
Green indicates that burner 1 has been commanded to ignite and will stay ON while operating. White indicates that it is OFF.
Qa.2
Start / Stop Fan #2
Green indicates that fan 2 motor has been commanded to run. White indicates that it has not been commanded to run.
Qa.3
On / Off Ignition #2
Green indicates that burner 2 has been commanded to ignite and will stay ON while operating. White indicates that it is OFF.
Qa.4
Start / Stop Fan #3
Green indicates that fan 3 motor has been commanded to run. White indicates that it has not been commanded to run.
Qa.5
On / Off Ignition #3
Green indicates that burner 3 has been commanded to ignite and will stay ON while operating. White indicates that it is OFF.
Qa.6
Start / Stop Fan #4
Green indicates that fan 4 motor has been commanded to run. White indicates that it has not been commanded to run.
Qa.7
On / Off Ignition #4
Green indicates that burner 4 has been commanded to ignite and will stay ON while operating. White indicates that it is OFF.
Qb.0
Start / Stop Fan #5
Green indicates that fan 5 motor has been commanded to run. White indicates that it has not been commanded to run.
Qb.1
On / Off Ignition #5
Green indicates that burner 5 has been commanded to ignite and will stay ON while operating. White indicates that it is OFF.
Qb.2
Start / Stop Fan #6
Green indicates that fan 6 motor has been commanded to run. White indicates that it has not been commanded to run.
Qb.3
On / Off Ignition #6
Green indicates that burner 6 has been commanded to ignite and will stay ON while operating. White indicates that it is OFF.
Qb.4
Start / Stop Fan #7
Green indicates that fan 7 motor has been commanded to run. White indicates that it has not been commanded to run.
Qb.5
On / Off Ignition #7
Green indicates that burner 7 has been commanded to ignite and will stay ON while operating. White indicates that it is OFF.
Qb.6
Start / Stop Fan #8
Green indicates that fan 8 motor has been commanded to run. White indicates that it has not been commanded to run.
Qb.7
On / Off Ignition #8
Green indicates that burner 8 has been commanded to ignite and will stay ON while operating. White indicates that it is OFF.
