Cat® Alarm and Protection System Control Panel Caterpillar

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The following information explains each menu item.

Settings

The settings menu has four related menu items:

• Automatic/Manual

• Local/Remote

• Start disabled

• Button beep

Automatic/Manual

When the control is set to automatic, the DCU will perform automatic start and stop from a remote signal. An example of a remote signal is a power management system.

If the control is in manual, the DCU will not perform automatic start and stop functions.

The symbol "M" is visible in the status bar if the control is in manual.

Note: The DCU automatic mode will override a manual setting in the menu. The input for DCU automatic mode is terminal 88.

The mode will change to automatic if there is input from the menu or via a remote signal.

Local/Remote

In "Local" mode, the DCU cannot be operated remotely. An "L" symbol is visible in the status bar.

Communication commands and hardwired commands will work in local mode.

Start Disabled

Select "Start Disabled" to disable all starts, local, and remote, on an engine.

Note: Caterpillar recommends removing the start battery connection before any maintenance work on the engine.

Button Beep

The button beep selection allows the user to determine whether a button press shall activate the buzzer.

Counters

Counters

The counters dialog displays engine-related hours.

Total

The "Total" dialog shows the total accumulated engine hours. Depending on the configuration, the value is calculated in the DCU or read from the ECM.

The counter value cannot be reset by the operator.

Since Start

The "Since Start" counter starts at zero every time the engine is started, and counts until the engine is stopped.

The since start counter value cannot be reset by the operator.

Since Reset

The "Since Reset" counter accumulates every time the engine is running. Press the "Reset" button to zero the values since last reset.

Event Log

Illustration 2	g02508217

The DCU keeps a log of all events. The log retains approximately 500 events. After the limit is reached for the number of logged events that can be retained, the oldest event is deleted.

An event is any diagnostic, warning alarm, or engine shutdown situation. The list of events that are retained do not include buttons pressed.

Event Sorting

The events can be sorted as follows:

• Oldest first

• Most severe first

• Least severe first

• Count

Navigation

Use the up and down arrow to navigate in the event log.

Timestamp

Use the timestamp function to expand a selected event to view the running hours and when the event happened.

For alarms, the second line will also display the running hours for an acknowledged and inactive situation.

Engine Service Interval

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The DCU can be configured to indicate service from as many as four different service counters.

All counters have a predefined hour counter interval and count engine running hours.

Service Due

"Service Due" is indicated with a wrench key icon (10). "Service Due" is not indicated in the alarm list. Refer to Illustration 3.

Service Done

When service work is completed, select the desired menu item and press the "Service Done" button to restart the counter for a new service interval.

Generator

Illustration 4	g02508677

If the DCU engine panel is connected to an optional RIO 425 unit to read generator parameters, then a generator symbol is displayed. Clicking the generator symbol will display the generator values on a new page.

Note: The page can also be accessed by pressing the up or down button at the instrument dialog.

Display

Screen Backlight

The "Screen Backlight" function is used to select different screen backlight settings. The backlight settings are as follows:

• 10% backlight is as dark as can be

• 50% backlight is half full

• 100% backlight is fully lit

• Automatic varies between 10 % and 100% using an ambient light detector.

Units

Select "units" to choose whether metric or U.S. measurement system is to be used.

• Metric (for example: Celsius, bar)

• U.S. (for example: Fahrenheit, psi)

Language

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Use the "Language" function to select from any of the available panel languages. The list of available languages is as follows:

• English

• French

• Spanish

• Italian

• German

• Dutch

• Russian

• Norwegian

• Chinese

Note: Texts for configured instruments must be translated manually during installation.

If a language is selected for which there is no such manual translation, the default language will be used.

Configuration

Engine Overspeed Test

In the engine overspeed test mode, the engine can be tested for overspeed by lowering the overspeed set point to nominal speed.

Overspeed Test Sequence

1. Ensure that the engine is not running. The over speed test mode cannot be entered while the engine is running.

2. Confirm that the over speed set point has been lowered by observing the red arrow on the rpm meter.

3. Start the engine and adjust the rpm until the rpm crosses the red labeled set point.

4. Observe engine shutdown.

Overspeed Test Off

The over speed test times out after 5 minutes or when an actual over speed condition occurs.

The test can be turned off also by pressing the over speed icon again.

Connect a PC

If the PC cannot connect to the DCU, there may be an IP address conflict.

Often, the IP address in a laptop PC cannot be changed by the user, since access is blocked due to company policy. If so, the PC IP address can only be set changed by a DHCP server when connected in a network where a DHCP server exists.

The DCU has a DHCP server that is built in in order to allow the process. The DHCP may be activated in order to issue a new IP address to the laptop.

Illustration 6	g02508336

The current IP number (15), is in the DCU, is listed near the top of the display. The next lines of the display show a "Start" and "End" IP address. The display shows the range that the DHCP server will scan. A free address in the range will be given to the connected PC.

Pre-selected Range

The DCU will preselect a range that is outside the current IP address of the DCU. The DCU IP address cannot be within the start and end IP address. Refer to Illustration 6.

Execute The Command

Press the "Save" button. The DHCP server will issue a new IP address to any PC already connected to the DCU. The DHCP server will issue a new IP address to any new PC connected within the "Timeout" period as shown in Illustration 6 as 10 minutes.

Note: The PC keeps the issued IP address even after the time-out.

Network DCU

If the DCU is connected to a local area network (LAN), the DCU cannot be installed to run several DHCP servers in the same LAN. Also, for LAN applications, the IP address of the DCU must be set within the address range of the LAN.

Configuration

The configuration functionality is used to configure parameters for sensors that are related to the DCU.

Access to the parameters is password protected. Information to access the parameters is not provided for in this manual.

Interface Design

Up to Eight DCU 410 controllers can be displayed on one RP410.

Note: Ensure that you know what to do before attempting to change the design or layout of the display that is discussed in this section.

Note: Typically, changing the layout or the screens would only be accomplished by the engine supplier by using the web interface programming tool.

Screen Layout

Illustration 7	g02508356

The screen is made up of templates, slots, and widgets as shown in Illustration 7.

Widget - The widget is the instrument. A widget can be a circular dial or a horizontal bar.

Slot - The slot is the place holder for the widget. Not all widgets fit in all slots.

Template - The template defines where the slots are on the screen.

Add A User Screen

1. Press "Insert" new. Use the up/down arrow buttons to select a suitable template. Press "OK", and then "Save".

2. Press "Slot Design".

3. Press "Edit View".

Show/hide table



Illustration 8	g02508387

4. Use the arrow buttons to select a slot, then press "Pick Channel".

   The slot is indicated by an area that has a bold boarder.

Show/hide table



Illustration 9	g02508390

5. Using the arrow buttons to select any signal from the list. Press "Select".

6. Repeat Steps 3 through 5 until all slots are populated.

7. Press "Exit".

Show/hide table



Illustration 10	g02508392

8. Review the revised screens. Use the arrow buttons to view the screens.

Delete A User Screen

1. Use the arrow buttons to select the desired user screen.

2. Press "Delete" to delete a screen.

Help

Troubleshooting

Illustration 11	g02508466
Typical troubleshooting screen with power supply information

The DCU has a comprehensive set of troubleshooting screens for the DCU. The DCU has a comprehensive set of troubleshooting screens for each of the optional RIO expansion units. The following information relates only to the DCU.

Supply

The two power supplies are listed with information about voltage status and supply selection.

Switch

The switch screen indicates if the switch is open (0V) or closed (24V input) for each of the eight switch channels.

If the troubleshooting screen indicates open, and there is a 24V signal at the input channel, then the channel is faulty.

4-20mA Channels

For each of the four 4-20mA channels, there is an indication of:

• The 2-25mA current is shown in mA

• Broken wire (<2mA)

• Short circuit (>25mA)

• Channel in use or not used

PT100

Each of the four PT100 channels can indicate:

• Value, in Celsius or Fahrenheit

• Faulty circuit

• Channel in use or not used

COM

The "COM" screen lists communication status for communication ports COM 1, 2, 3, 4, 5 and 6.

Output

The output screen lists the output status of DCU terminals 63 to 84.

As an example, if terminal 83 indicates Active (24V) and there is no 24V measured on terminal 83, then that output is faulty.

Input

The "Input" choice lists the input status on DCU terminal 86 to 97.

As an example, if DCU terminal 89 is measured to 24V, but the troubleshooting screen for that channel indicates inactive, then that input is faulty.

Run Indication Sources

A number of different sources can be configured to indicate, for the DCU, that the engine is running.

The "Run Indication Sources" page will reveal which source is providing the DCU with a running engine indication.

Button Test

Use the "Button Test" to confirm that all DCU buttons are working.

To exit the test, press and hold soft button 2, then press soft button 4.

Version Information

Use the "Version Information" choice to see information about the following:

• Hardware Version

• Software Version

• Connected ECM Version (if any)

• Own IP number