For more detailed information on the monitoring system, refer to Systems Operation, Testing and Adjusting, UENR3958, "794 AC Off-Highway Truck Advisor Monitoring System" and Systems Operation, Troubleshooting, Testing and Adjusting, UENR3957, "794 AC Off-Highway Truck VIMS, 3G and Truck Payload Measurement System (TPMS)".
VIMS only monitors the payload sensors. This system supports a distributed monitoring system. Electronic Control Modules (ECM) monitor the machine components. Each ECM generates diagnostics and events. Each machine ECM then reports the diagnostics and events to the Advisor to notify the operator. Each machine ECM reports the diagnostics and events to VIMS for logging.
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| Illustration 1 | g06272360 |
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(1) Oil Pressure Gauge
(2) Left Turn Signal (3) Hand/Load Brake (4) High Beam (5) RSC/ARC (Retarding Speed Control/Automatic Retarding Control) (6) Dump Body Raised (7) Right Turn Signal (8) Diesel exhaust fluid level gauge (9) Fuel Gauge (10) Speedometer Gauge (11) Tachometer (12) Coolant Temperature Gauge | |
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Oil Pressure Gauge (1) - Oil pressure gauge indicates engine oil pressure. |
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Left Turn Signal (2) - This indicator illuminates when the left turn signal light is operating. |
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Hand Load Brake (3) - Hand/load brake indicator illuminates engaged. |
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High Beam (4) - When this indicator is illuminated, the high beam headlights are on. |
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RSC/ARC (Retarding Speed Control/Automatic Retarding Control) (5) - RSC/ARC indicator will illuminate when the truck retarding system is enabled. |
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Dump Body Raised (6) - When this indicator is illuminated, dump body is in the raised position. |
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Right Turn Signal (7) - This indicator illuminates when the right turn signal light is operating. |
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Diesel Exhaust Fluid Level Gauge (8) - The diesel exhaust fluid (DEF) level gauge monitors the diesel exhaust fluid (DEF) tank level. |
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Fuel Level (9) - When the level of fuel in the fuel tank is low, the fuel level gauge will be in the red zone. |
Speedometer (10) - Speedometer indicates the truck speed.
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Tachometer (11) - The tachometer will indicate the engine RPM. The tachometer indicates engine overspeed. Engine overspeed is represented by the yellow zone and the red zone. |
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Coolant Temperature Gauge (12) - Coolant temperature gauge indicates the temperature of the engine coolant. |
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| Illustration 2 | g06341963 |
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(13) Brake Drag Front
(14) Powered Stairway Down (15) Brake Oil Hot (16) Brake Drag Rear (17) Traction Control System (18) Auto Lube Malfunction (19) Engine Stop (20) Brake Pressure (21) Low Steering Pressure (22) Fuel Level (23) Electrical System Fault 2 (24) Engine Check (25) Hydraulic Oil Temperature (26) Hydraulic Oil Level (27) Retarder (Hot) (28) Electrical System Fault 1 | |
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Brake Drag Front (13) - The brake drag front symbol illuminates when residual pressure exists in the front brakes. Driving with the front brakes applied will generate excessive heat and wear. |
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Powered Stairway Down (14) - The powered stairway down indicator will illuminate when the powered stairway is in the lowered position. Do not operate the machine when the powered stairway is in the lowered position. |
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Brake Oil Hot (15) - The brake oil hot symbol illuminates when there are elevated temperatures in the wet brake oils. |
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Brake Drag Rear (16) - The brake drag rear symbol illuminates when residual pressure exists in the rear brakes. Driving with the rear brakes applied will generate excessive heat and wear. |
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Traction Control System (17) - This indicator is illuminated when the torque to the traction motors is adjusted by the Traction Control System (TCS). |
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Auto Lube Malfunction (18) - The auto lube malfunction symbol illuminates when the auto lube pump system is not operating properly. |
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Engine Stop (19) - The engine stop symbol illuminates when there is a critical fault with the engine. The engine must be stopped. |
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Brake Pressure (20) - The brake pressure symbol illuminates when the accumulators for the hydraulic brake system pressure decreases to less than a preset level. Do not operate the machine when the brake pressure indicator is illuminated. Park the machine in a safe location to investigate the problem. |
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Low Steering Pressure (21) - When this indicator is illuminated, the primary steering system pressure is low. Stop the machine immediately. Stop the engine and investigate the cause. Do not operate the machine until the primary steering system pressure is normal. |
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Fuel Level (22) - The fuel level symbol illuminates when there is low fuel level in the fuel tank. |
Electrical System Fault 2 (23)
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Electrical System Fault 2 (23) - The electrical system fault 2 will illuminate (red) when a Level 3 fault has occurred. There is a fault with either the propulsion, dynamic retarding, or power systems. |
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Check Engine (24) - The check engine symbol illuminates when there is a fault in the engine that needs checked out by a trained technician. |
Hydraulic Oil Temperature (25)
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Hydraulic Oil Temperature (25) - The hydraulic oil temperature symbol illuminates when temperatures are exceeding recommended operating levels. |
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Hydraulic Oil Level (26) - The hydraulic oil level symbol illuminates when the hydraulic oil level is low. |
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Retarder (Hot) (27) - The retarder symbol illuminates when conditions cause the dynamic retarding system components to operate at increased temperatures. The overheating of components will reduce the speed limits on system operation. |
Electrical System Fault 1 (28)
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Electrical System Fault 1 (28) - The electrical system fault 1 will illuminate (amber) when a Level 2 fault has occurred. There is a fault with either the propulsion, dynamic retarding, or power systems. |
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| Illustration 3 | g06341964 |
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Location of speedometer menu screen | |
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| Illustration 4 | g06341965 |
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View of Setup Menu | |
Enter the setup menu by pressing buttons (A) and (B) as you turn on the ignition. Once in the Setup Menu, pressing buttons (A) or (B) will move the highlighted selection up or down through the list, as indicated by the arrows (Illustration 4). The highlighted item (C) is selected when buttons (A) or (B) are pressed at the same time.
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| Illustration 5 | g06048994 |
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View of Self Test Screen | |
When YES is selected (Illustration 5), the startup self-test will zero the pointers, test the LCD, sound three tones from the speaker, sweep the gauge pointers through 50%, 100%, then back to zero, and turn all warning lights on for 5 seconds. When NO is selected the pointers will zero, the LCD will not be tested, and all warning lights will be turned on for 5 seconds. Pressing button (B) toggles between YES and NO, and pressing button (A) exits back to the Setup Menu screen. The default setting for this option is YES.
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| Illustration 6 | g06049018 |
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View of CAT Engine | |
Ensure the CAT engine is selected.
When the CAT engine is selected (Illustration 6), the engine source address for all CAN messages is assumed to be 00 (hex), except for the vehicle speed message (PGN 65265_SPN 84) which is 07 (hex) or 27 (hex) as the message is coming from the drive system and not the engine in this case. If both SA 07 and 27 are present, 07 should take precedent. The diagnostic trouble codes will be displayed in the Settings and Diagnostics menu according to the CAT engine translation table.
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| Illustration 7 | g06049037 |
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View of Speedometer Data Source | |
Ensure that the J1939 Data Bus is selected for the speedometer data source.
Selecting EXIT returns to the startup mode sequence.
Engine Air Restriction Gauges (29)
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| Illustration 8 | g06231584 |
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Air Filter (29) - The air gauges will indicate the amount of restriction in the air filter and induction system. |
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If the action alarm does not sound during this test or machine monitoring displays are not functioning, do not operate the machine until the cause has been corrected. Machine operation with faulty action alarms or displays could result in injury or death as any Warning Category 3 notifications will not be relayed to the operator. |
To ensure the proper operation of the monitoring system, check the system daily.
The battery disconnect switch must be in the ON position.
The self-diagnostic test verifies that the outputs (gauges, indicators, and alarms) are operating correctly.
When you turn the engine start switch key to the ON position, the following systems are tested for approximately one second: indicators, gauges, and LCD displays.
The gauges must go to the far right positions. All indicators must illuminate momentarily. All segments of the LCD displays must come on momentarily. The action alarm must sound.
The Monitoring System provides three warning categories.
In this category, all the following conditions will occur:
- An indicator will illuminate or a gauge will be in the red zone. The indicator that illuminates or the gauge that is in the red zone identifies the machine system that needs attention.
Warning category 1 requires operator awareness. Minor reductions in machine performance may occur.
In this category, all the following conditions will occur:
- An indicator will illuminate or a gauge will indicate in the red zone.
- A popup screen appears on the Advisor display screen. Warning information appears on the display screen.
Note: Press the "OK" button to acknowledge any warning messages. This will snooze the action light and the message on the display screen.
Warning category 2 requires maintenance or a change in machine operation. Damage to components can occur.
In this category, all the following conditions will occur:
- An indicator will illuminate or a gauge will indicate in the red zone.
- A steady action alarm will sound.
- A popup screen appears on the Advisor display screen. Warning information appears on the display screen.
Note: Press the "OK" button to acknowledge any warning messages. This will snooze the action light and the message on the display screen.
Warning category 2S requires maintenance or a change in machine operation. Severe damage to components can occur.
In this category, all the following conditions will occur:
- An indicator will illuminate or a gauge will indicate in the red zone.
- A sound from the action alarm will pulsate.
- A popup screen appears on the Advisor display screen. Warning information appears on the display screen.
Note: "Snooze" is not available for a warning category 3.
Warning category 3 requires the operator to perform a safe machine shutdown immediately. Injury to the operator or severe damage to components can occur.
VIMS has the ability to stop the engine when any one or more of the following engine shutdown events exist:
- Low engine oil level
- Low engine oil pressure
- Generator phase imbalance (level 3 drive train fault)
- High engine jacket water temperature
- Low engine jacket water level
All the following conditions must also be met before an engine shutdown event will cause VIMS to shutdown the engine:
- The ground speed must be zero.
- The shift control lever must be in the P position and the park brake should be applied.
- A throttle command must not be active.
The following events will warn the operator before VIMS will shutdown the engine:
- A warning category 3 will occur when the engine oil level is low and the engine is running. Advisor will inform the operator of low engine oil level. Advisor will also instruct the operator to add oil immediately.
- A warning category 3 will occur when the engine oil pressure is low and the engine is running. Advisor will inform the operator of low engine oil pressure. Advisor will also instruct the operator to stop the engine immediately.
- A warning category 3 will occur when there is a current imbalance on the output side of the generator. Advisor will also instruct the operator to stop the engine immediately.
If the engine is stopped by an engine shutdown event, VIMS will allow the engine to be started.
If the engine is shutdown because of an engine shutdown event, the event list in VIMS will show the event that caused the shutdown.
Resetting a Fault on the Monitoring System
Most warning category 1, warning category 2, and warning category 2S faults can be reset by the operator. Some warning category 3 faults can be reset by the operator.
If there is a fault that is unable to be reset by the operator, refer to Troubleshooting, Systems Operation, Testing and Adjusting, UENR2267, "794 AC Power Train Electronic Control System" or contact your local Cat dealer.
The following conditions must be met to perform the reset procedure:
- "Actual gear" is in N.
- Ground speed is at Zero.
- A throttle command is not active.
- An engine shutdown event is not active.
- DC link voltage is less than 400 V.
The following reset procedure can be performed by the operator:
- Depress the service brake and move the shift control lever to the N position.
Note: Do not depress the accelerator pedal during the reset procedure.
- Move the shift control lever out of the P position and into the R, N, D, or Lposition.
- Move the shift control lever back into the P position.
Note: Software parameters and specifications are subject to changes without notice. Refer to the latest revision of Systems Operation, Testing and Adjusting, UENR3958, "794 AC Off-Highway Truck Advisor Monitoring System" and Systems Operation, Troubleshooting, Testing and Adjusting, UENR3957, "794 AC Off-Highway Truck VIMS, 3G and Truck Payload Measurement System (TPMS)".
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| Illustration 9 | g03509019 |
OK button (1) - After you have made selections with the scroll down/right button (4) and with the scroll up/left button (5), use this button to confirm those selections.
Home menu button (2) - Use this button to return to the main menu.
Previous button (3) - Use this button to return to information that was previously shown on digital display area (7).
Scroll down/right button (4) - This button is used to scroll down through information that is shown on the display area. The button can also be used to scroll to the right through information that is shown on the display area.
Scroll up/left button (5) - This button is used to scroll up through information that is shown on the display area. The button can also be used to scroll to the left through information that is shown on the display area.
Preset buttons (6) - The Advisor system allows you to program the locations of five menu items. To store a menu item into the memory, go to the desired screen display in the menu by using the navigation buttons. Assign a preset button by depressing the preset button for approximately three seconds until all preset buttons illuminate. If the preset buttons illuminate red, the preset is unable to be stored. If the preset buttons illuminate green, the preset button is now assigned to the corresponding screen display in the menu. The preset button can be used to access the corresponding screen display from any location in the menu. If the profile is set to "Factory Set", any programmed preset buttons will revert to the default setting when the keyswitch is turned OFF. To save the preset programming, a profile must be selected or created. Refer to ""Create Profile"" in the ""Operator" Menu" information.
Digital display area (7) - The Advisor system shows information on this digital display area.
The structure of the Advisor menu is arranged in a layered list. When the operator or a technician selects an option from a menu, the next screen is one level below the previous screen. More selections may be available from the resulting screen. There may also be more than one page of information or options that can be displayed from a level. Only four options can be displayed at one time. This is indicated by the "More Options" icon. This icon is on the left side of the screen.
The main menu can be displayed at any time by pressing the "Home" button.
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| Illustration 10 | g03664623 |
Actual gear (31) - This will display the actual setting in the drive train controller. The display will show one of the following:
- "N" for the P position and the N position
- "D" and "L" for the FORWARD position
- "R" for the REVERSE position
Note: When the shift control lever is in the P position and the parking brake is applied, the drive train is in NEUTRAL and the parking brake is applied.
Shift lever selection (32) - If the shift control lever is in any of the following positions, the highlighted character indicates the position of the shift control lever: P, R, N, Dand L.
Speed Setting for the Automatic Retarder Control (ARC) (33) - This screen will display the speed setting that will activate the ARC.
Date/Time Clock (34) - This screen will display the time and the date.
More Options (35) - This icon shows the direction to scroll for more options.
Menu Items (36) - This screen will display the menu options that are available.
Active Status of the ARC (37) - This screen will display "ARC" when the ARC is active. The following conditions must be met before the ARC is active:
- The ARC switch is ON
- The shift control lever is in a forward speed.
- The machine speed is below the ARC speed setting.
- The accelerator pedal is released.
The profile of an operator is a saved set of preferences that are identified by a name. Once the profile is created, the operator may associate various display settings and settings for the drive train to that profile. When the preferences are adjusted, the preferences may be saved.
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| Illustration 11 | g03664654 |
The profile of the operator is accessed from the "Home" menu. Press the up arrow button or the down arrow button until "Operator" is highlighted. Then press the "OK" button.
The following selections are available through the "Operator" menu:
From the "Operator" menu, use the appropriate arrow button to highlight the "Operator ID" option. Then press the "OK" button to display the "Operator ID" screen.
From the "Operator" menu, use the appropriate arrow button to highlight the "Select Profile" option. Then press the "OK" button to display a list of existing profiles. Use the appropriate arrow button to highlight the desired profile. Then press the "OK" button to select that profile.
Note: A maximum of ten profiles may be used.
Note: A "None" profile will be automatically created when the last remaining profile is deleted and no profile exists. The programmed preferences are automatically saved when the keyswitch is turned OFF. "Factory Set" is not a profile.
From the "Operator" menu, use the appropriate arrow button to highlight the "Edit/Save Current" option. Then press the "OK" button to view the current settings that are associated with the current profile.
The following selections are available through the "Edit/Save Current" submenu:
- "Save Profile"
- "Units"
- "Language"
- "Lights on Dimming"
- "Lights off Dimming"
- "Contrast"
- "Operator ID"
The operator may exit this display without saving by pressing the back button. The operator may save the settings by selecting "Save" and pressing the "OK" button.
From the "Operator" menu, use the appropriate arrow button to highlight the "Create Profile" option. Then press the "OK" button to display the "Create Profile" screen. Follow the screens to create a new name. The screen will give directions to save the name to the list of profiles. This procedure creates a profile.
Note: After a profile is created the selections in the "Settings" submenu can be saved to a specific profile.
Note: A maximum of ten profiles may be used.
From the "Operator" menu, use the appropriate arrow button to highlight the "Delete Profile" option. Then press the "OK" button to display a list of existing profiles. Use the appropriate arrow button to highlight the profile for deleting. Then press the "OK" button to delete that profile. This procedure deletes the selected profile from the list of stored profiles.
From the "Operator" menu, use the appropriate arrow button to highlight the "Factory Set" option. Then press the "OK" button to make the default settings active.
This procedure recalls the default settings. The default settings are then the active settings and the Advisor display and the instrument cluster will reflect the default settings. Once the default settings have been activated, the settings may be viewed without saving using the "Edit/Save Current" option.
The default settings will not be saved with the current profile unless the operator saves the default settings to a profile by using the "Edit/Save Current" option.
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| Illustration 12 | g03664664 |
The "Monitor" menu option is accessed from the "Home" menu. Press the up button or the down button until the "Monitor" is highlighted. Then press the "OK" button.
The "Monitor" menu option allows the user to view the machine parameters that are being monitored. Four parameters are displayed on the screen at one time. Use the navigation buttons to scroll through the parameters. Press the "OK" button to attain a list of available parameters in each quadrant. The defaults are marked.
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| Illustration 13 | g03664686 |
The "Payload" menu option is accessed from the "Home" menu. Press the up button or the down button until the "Payload" is highlighted. Then press the "OK" button.
The following information will be displayed in the "Payload" menu:
"Payload State" - The state of the payload (load cycle status) will be one of the following:
- "Stopped Empty"
- "Traveling Empty"
- "Traveling Loaded"
- "Stopped Loaded"
- "Dumping"
- "Loading": The module senses the beginning of the load cycle.
- "Last Pass": One additional pass from the loading machine will fill the dump body to maximum capacity.
- "Fully Loaded": The dump body is fully loaded.
"Payload" - Calculated weight for the payload
"Target" - Target payload weight
See Systems Operation, RENR8284, "General Information" for more information about the payload.
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| Illustration 14 | g03664695 |
The "Grid Dry Mode" menu option is accessed from the "Home" menu. Press the up button or the down button until the "Grid Dry Mode" is highlighted. Then press the "OK" button.
Auto Grid Dry Mode will automatically enable when the shift control lever is placed in the PARK position. Auto Grid Dry Mode will deactivate under the following circumstances:
- After initially starting the truck, the Auto Grid Dry Mode will not be engaged until the shift control lever is moved out of the PARK position.
- Auto Grid Dry Mode will be disabled when the machine lockout is active. The shift control lever must then again be moved out of the PARK position to engage Auto Grid Dry Mode.
The following selection is available through the "Grid Dry Mode" submenu:
"Grid Dry Mode"
The "Grid Dry Mode" menu option shows the steps needed to energize the retarding grid on the electric drive truck to dry out the components in the event of a ground fault. Usually caused by rain or snow. Press the "OK" button in order to view the information of the event or code. Use the left arrow button or the right arrow button in order to move to the next logged event or the next code.
The following messages will be displayed in Advisor until the event deactivates or is snoozed:
- DC Ground Fault
- Limited Propel Capability.
- Auto Grid Dry Mode
DC Ground Fault Event Level 1 Activates when Ground Fault percentage is over 50%. DC Ground Fault Event Level 1 Deactivates 30 seconds after Ground Fault percentage is under 50%
If a DC Ground Fault Event Level 1 occurs while the machine is in PARK position, use Advisor display to command the Grid Dry Mode Service Test or move the shift control lever out of PARK position to activate Auto Grid Dry.
Auto Grid Dry will automatically enter grid dry mode when the shift lever is in the PARK position, and will be deactivated under the following circumstances:
- After initially starting the truck, Auto Grid Dry will not be engaged until the shift control lever is moved out of the PARK position.
- Auto Grid Dry will be disabled when Machine Lock-out is active. The shift lever must then again be moved out of the PARK position to engage this feature.
If a DC Ground Fault Event Level 1 occurs while driving, continue to drive, this allows Auto Grid Dry to activate. To prevent a DC Ground Fault Event from reaching Level 3 use the service brakes rather than electrical retarding until the level 1 fault is cleared.
Auto Grid Dry will activate when the shift control lever is moved out of PARK position while a DC Ground Fault Event Level 1 is active. It will stay active for a minimum of 30 seconds or until deactivated manually by the operator, or automatically by the system. Auto Grid Dry Deactivates when the DC Ground Fault Event Level 1 is no longer active or if it has been active for more than 7.5 minutes or the machine shift lever is moved to the PARK position or the truck enters retard mode.
Grid Dry Mode Activates when commanded by the Advisor. The throttle must remain at 100% for Grid Dry Mode to remain active. Grid Dry Mode will command an engine speed of 1800 rpm. Grid Dry Mode will deactivate if the throttle pedal is released or if the shift lever position is removed from park or if it has been active for 5 minutes.
Note: Grid Dry Mode Service Test does not deactivate when DC Ground Fault Level 1 is no longer active. The operator should continue to run Grid Dry Mode until the displayed DC Ground Fault Percentage is under 30%.
The drive system response to an Active DC Ground Fault Event Level 3 is to disable drive system propel and retarder. The following messages will be displayed in Advisor until the event deactivates:
- DC Ground Fault
- Shut down Safely
DC Ground Fault Event Level 3 Activates when Ground Fault percentage is over 100%. DC Ground Fault Event Level 3 Deactivates 10 seconds after Ground Fault percentage is under 100%
If a DC Ground Fault Event Level 3 occurs while driving, stop the machine, shift to PARK position, and wait 10 seconds for the DC Ground fault Event Level 3 to deactivate. Wait for a DC Ground Fault Event Level 1 to be displayed on Advisor. Move the shift control lever out of PARK position, this allows Auto Grid Dry to activate, or use the Advisor Display to Command Grid Dry Mode Service Test. During severe weather conditions you may be required to activate Grid Dry Mode a second time to resolve the Ground Fault. If a second activation of Grid Dry Mode does not reduce the ground fault percentage and resolve the event, contact your Cat dealer.
It is important to recognize the type of Ground Fault event indicated on Advisor. DC events can most often be resolved using Grid Dry Mode Service Test, or Auto Grid Dry Mode. AC events are not likely to be effected by Grid Dry Mode. If you experience an AC ground fault, activate Grid Dry once, and if the ground fault is not reduced and resolved. Contact your Cat dealer.
The following messages will be displayed in Advisor, until the event deactivates or is snoozed:
- AC Ground Fault
- Perform Grid Dry Mode
The drive system response to an Active AC Ground Fault Event Level 3 is to disable the drive system propel and retard. The following messages will be displayed in Advisor until the event deactivates:
- AC Ground Fault
- Shut down Safely
Note: AC Ground Faults will not trigger level 1 events.
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| Illustration 15 | g03664781 |
The "Service" menu option is accessed from the "Home" menu. Press the up arrow button or the down arrow button until "Service" is highlighted. Then press the "OK" button.
The selections that are available in the "Service" menu can be password protected with the "Service Mode" password in order to limit access to programmable parameters. The programmed parameters in the password protected menu options are available for viewing only. Cat ET must be used in order to set the password.
The following selections are available through the "Service" menu:
The following selections are available through the "Diagnostics" submenu:
"Active Events"
The "Active Events" menu option shows the list of events and diagnostic codes that are active. Press the "OK" button in order to view the information of the event or code. Use the left arrow button or the right arrow button in order to move to the next active event or the next code.
"Logged Events"
The "Logged Events" menu option shows the list of events and diagnostic codes that have been recorded. Press the "OK" button in order to view the information of the event or code. Use the left arrow button or the right arrow button in order to move to the next logged event or the next code.
"Trigger Snapshot"
The "Trigger Snapshot" menu option allows the user to manually initiate a snapshot of the system. This snapshot will be in addition to the snapshots that are already programmed. The snapshot will remain active until the time has elapsed.
"Data Logger"
The status of the data logger is shown in the right portion of the screen on the Advisor.
The remaining storage time of the data logger is shown on the message area when the user highlights the "Data Logger Reset" menu item on the Advisor display. The format of the time is shown in "minutes:seconds".
- "Data Logger Start". The "Data Logger Start" menu option allows the user to initiate the data logger. The operator can initiate the data logger. Then, the operator can stop the data logger. This action can be performed numerous times until the total time for logging the data is 30 minutes. The menu item "Data Logger Stop" will change back to "Data Logger Start" when the data logger is no longer recording data. The menu items do not change when the service tool starts the data logger.
- "Data Logger Reset". The "Data Logger Reset" menu option allows the user to reset the data logger. This option clears all of the logged information. Select the "Data Logger Reset" menu item. The Advisor shows the time that is available for the data logger on the right side of the screen. 30 minutes will be available after the data logger has been reset.
Note: The Data Logger is the only onboard file that can be reset through the Advisor display. The Advisor must be in the Service Mode or the Caterpillar Electronic Technician (ET) must be connected to the data link in order to reset the data logger. Also, this is true in order to perform other service functions. The VIMS-PC software is not needed in order to reset the data logger.
The "System Parameters" submenu will display the ECM status of the system components. Some of the components may use multiple screens in order to display all of the parameters that are monitored. The "System Parameters" submenu will sort all parameters into the following categories:
- "Sort By ECM" allows the user to view the parameters that are associated with separate system components.
- "Sort By Type" allows the user to view the parameters that are associated with separate units of measurement.
- All parameters
"Sort By ECM"
The "Sort By ECM" submenu will sort all parameters into the following categories:
- "Advisor": This selection will display the parameters for the Advisor monitoring system.
- "Brake": This will display the parameters that are monitored by the brake ECM.
- "Chassis": This will display the parameters that are monitored by the chassis ECM.
- "Drivetrain": This will display the parameters that are monitored by the drive train ECM.
- "Engine": This will display the parameters that are monitored by the engine ECM.
- "Motor #1 Controller": This will display the parameters that are monitored by the motor 1 ECM.
- "Motor #2 Controller": This will display the parameters that are monitored by the motor 2 ECM.
- "VIMS": This will display the parameters that are monitored by the VIMS ECM (payload).
- "Product Link Elite": This will display the parameters that are monitored by the product link elite ECM.
- "Monitor 794": This will display the parameters that are monitored by the Monitor 794 ECM.
- "Object Detection System": This will display the parameters that are monitored by the object detection system ECM.
- "Electronic Fluid Temperature Control #1": This will display the parameters that are monitored by the electronic fluid temperature control 1 ECM.
- "Selective Catalyst Reduction System": This will display the parameters that are monitored by the selective catalyst reduction system ECM.
- "Diesel Exhaust Fluid Controller #1": This will display the parameters that are monitored by the diesel exhaust fluid controller 1 ECM.
- "Diesel Exhaust Fluid Controller #2": This will display the parameters that are monitored by the diesel exhaust fluid controller 2 ECM.
- "Diesel Exhaust Fluid Controller #3": This will display the parameters that are monitored by the diesel exhaust fluid controller 3 ECM.
- "Diesel Exhaust Fluid Controller #4": This will display the parameters that are monitored by the diesel exhaust fluid controller 4 ECM.
"Sort By Type"
The "Sort By Type" submenu will sort all parameters into the following categories:
- "Temperatures": This will display the parameters that are monitored under the category of temperature.
- "Pressures": This will display the parameters that are monitored under the category of pressure.
- "Speeds": This will display the parameters that are monitored under the category of speed.
- "Operator Inputs": This will display the parameters that are monitored under the category of operator input.
- "Machine Status": This will display the parameters that are monitored under the category of "Machine Status".
- "Electric Drive": This will display the parameters that are monitored under the category of "Electric Drive".
- "Totals - Reset": This will display and/or reset the trip/shift totals.
- "Totals - Lifetime": This will display the lifetime totals.
"All Parameters"
The "All Parameters" menu option allows the user to view the entire list of parameters.
The following selections are available through the "Calibrations" submenu:
- "Truck Payload"
Use the appropriate arrow button to highlight the desired calibration from the list. Then press the "OK" button. Follow the directions that are displayed on the screen in order to perform the calibration.
The following selections are available through the "System Tests" submenu:
- "Self test" (functional test)
- "Grid dry mode test"
- "Engine performance test"
The "System Information" submenu will display details about the software version and details about the ECM module for the following systems:
- "Advisor"
- "Brake"
- "Chassis"
- "Drivetrain"
- "Engine"
- "Motor #1 Controller"
- "Motor #2 Controller"
- "VIMS Application"
- "VIMS Main"
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| Illustration 16 | g01878972 |
The "Settings" menu option is accessed from the "Home" menu. Press the up arrow button or the down arrow button until "Settings" is highlighted. Then press the "OK" button.
Operating conditions, preferences of the operator and requirements for operating efficiency dictate the need to adjust the parameters.
The "Display Setup", "Machine", "Chassis", "Brake", "VIMS"and "Drivetrain" selections that are available in the "Setttings" menu can be password protected with the "Service Mode" password in order to limit access to programmable parameters. The programmed parameters in the password protected menu options are available for viewing only. Cat ET must be used in order to set the password.
The following selections are available through the "Settings" menu:
Individual preferences for the "Display Setup" need to be saved in the operator profile.
If the profile is set to "Factory Set", the preferences will revert to the default setting when the keyswitch is turned OFF. In order to save a preference, a profile must be selected or created. Refer to ""Create Profile"" in the ""Operator" Menu" information.
The following selections are available through the "Display Setup" submenu:
- "Language"
- "Units" ("English" or "Metric")
- "Contrast"
- "Lights on"
- "Lights off"
- "Date format"
- "Time format"
"Lights on" will adjust the setting of the backlight for the display screen. This setting will determine the backlight intensity that will be used when the headlights are placed in the ON position.
"Lights off" will adjust the setting of the backlight for the display screen. This setting will determine the backlight intensity that will be used when the headlights are placed in the OFF position.
The following selections are available through the "Brake" submenu:
- Max machine retarding speed
- "Machine speed limit"
- "Drive motor disable configuration" Drive motor #1 is the left side drive motor. Drive motor #2 is the right side drive motor.
- "Loaded machine speed limit"
- "Machine body UP speed limit"
- "Machine overload speed limit"
The following selections are available through the "VIMS" submenu:
Payload
- "Payload" (target weight)
- "Setting" (overload limit)
- "(Payload) Last pass indicator"
The following selections are available through the "Machine" submenu:
- "Product ID"
- "Equipment ID"
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| Illustration 17 | g01878978 |
The "Service Mode" menu option is accessed from the "Home" menu. Press the up arrow button or the down arrow button until "Service Mode" is highlighted. Then press the "OK" button.
The "Service Mode" menu is used in order to access the password protected menu options. The "Service Mode" protects certain features from access by the operator. Features that are protected from the operator can be enabled or disabled with a password.
Note: A password may be required or a password may not be required. This depends on the settings that have been made in Cat ET.
A Service Tool must be used to program the password into the display. The password cannot be changed within the Advisor.