AccuGrade® - CD700 Grade Control System (GPS/ATS/Laser) Caterpillar

Advanced Tracking System

Usage:

D6R II AAX

ATS Not Tracking

Probable Causes

There is no power to the ATS
The ATS is not connected
The electric mast is not connected
The firmware for the ATS is incorrect
The 2400 Mhz radio is not connected or configured
Out of range
The ATS does not have line of sight to the target on the machine
Is the work area within the search window specified when the ATS was started

Problem Isolation

Use the "Machine Radio Configuration" dialog in order to verify that the machine radio is configured to operate on the same network number as the Total Station.

Verify that there is power to the data radio.

Verify that the data radio is synchronized.

Use the information from the "ATS" dialog in order to check the following:
1. The ATS is tracking.
1. The ATS has adequate power.

Verify that the ATS instrument is free from vibrations caused by passing machinery or the wind.

Observe the site and the work area and check the following:
1. The ATS target is between 15 m (49 ft) and 300 m (985) from the ATS instrument.
1. Ensure that the ATS instrument has a continuous line of sight to the ATS target. Check for occasional passing vehicles or dust clouds which could block the line of sight. Check that the line of sight is maintained for all machine orientations across the whole work area.
1. Verify that the work area is within the search window specified when the ATS was started.
1. Ensure that the lens of the ATS instrument is clean.

ATS Start-Up Problems

Show/hide table

Table 1
Problem	Action
No "Start" soft key in "ATS" dialog.	The machine data radio has not synchronized with the ATS instrument data radio. Check that the ATS instrument data radio is turned on. Check the battery of the instrument. Refer to Operation and Maintenance Manual, SEBU8290, "Diagnostics - View".
ATS fails to start	Ask your site manager to check that the radio channel and network that are set up in the control box are compatible with the instrument radio. Refer to Operation and Maintenance Manual, SEBU8290, "Diagnostics - View".

ATS Warning Messages

Show/hide table

Table 2
Message	Problem	Solution
"Bench ATS"	The target needs to be benched because the ATS height was not entered when the instrument was set up.	Bench the Machine Target. Otherwise, ask your site manager to set up the instrument with an elevation.
"Check ATS Battery"	The system detected that the ATS instrument battery is low.	Replace the instrument battery with a fully charged one.
"Check ATS Radio"	The system cannot communicate with the data radio for the ATS instrument.	Check that the radio for the ATS instrument is powered. Check the cable to the radio.
"Check Machine Radio"	The system cannot communicate with the data radio for the machine.	Check the cable to the radio. Refer to Operation and Maintenance Manual, SEBU8290, "Common Problems" for information about the status indicators for the Machine Radio.
"Check Machine Target"	The system cannot communicate with the target.	Check that the target is powered and that the visible LEDs are flashing. Check the cable to the target.
"Level ATS"	The tilt compensator on the ATS instrument is out of range.	Level the instrument mount.
"No ATS Data"	The ATS is not currently operating as part of the system.	Use the procedure in Operation and Maintenance Manual, SEBU8290, "Diagnostics - View". Additionally, check that the ATS system is running and tracking the machine. Check that the Target ID is set correctly.
"Search For Machine Target"	The ATS instrument lost lock on the target, or was unable to acquire the target after searching.	Check that there is a clear line of sight between the instrument and the target, that the target is within range of the instrument, and that the machine is within the search window and then search for the machine target.
"Start ATS"	The ATS system is not providing guidance data.	Start the ATS system.

MT900 ATS Target Status Indicators

Show/hide table




Illustration 1	g01418331
(20) Status Indicator

The status indicators of an MT900 ATS target show if the unit is receiving power and functioning correctly. There are four status indicators visible. Illustration 1 shows the location of the status indicators for the target.

The status of the target is shown by the indicator patterns. Refer to Table 3.

Show/hide table

Table 3
Indicator Flashing Pattern	Meaning
Not illuminated	No power
Fast flash (0.1 seconds on, 0.1 seconds off)	Power up (approximately 0.5 seconds), otherwise low battery (less than 9 VDC)
Slow flash (0.1 seconds on, 0.9 seconds off)	Normal operation
Blink (3 seconds on, 0.1 seconds off)	Hardware fault

ATS Diagnostics

Show/hide table

Table 4
ATS Tracking Status	Meaning
"ATS configuration failed"	ATS instrument configuration failed.
"ATS does not support Active Target ID <num>"	The ATS instrument does not support the MT900 Target ID specified.
"ATS not supported"	The firmware in the ATS instrument is not compatible with the AccuGrade System.
"ATS not supported: Cannot determine firmware version"	The firmware in the ATS instrument is not compatible with the AccuGrade System.
"ATS not supported: No Positioning support"	The firmware in the ATS instrument is not compatible with the AccuGrade System.
"ATS not supported: No Tracker support"	The firmware in the ATS instrument is not compatible with the AccuGrade System.
"ATS not supported: Not a construction ATS"	The firmware in the ATS instrument is not compatible with the AccuGrade System.
"Auto Searching for Target ..."	The ATS instrument is searching for the machine target. Only occurs if you have selected auto search.
"Check ATS: Search window not set"	A search window is not set up on the ATS instrument.
"Check ATS: station setup error"	ATS instrument configuration has failed.
"Check machine radio"	The system cannot communicate with the machine radio.
"Check machine target"	The system cannot communicate with the machine target.
"Check radio channel"	The selected radio channel is already in use.
"Communication timed out"	The delay in the response from the ATS instrument was greater
"Configuring ATS"	The ATS instrument is being configured.
"Connecting ATS"	The system is establishing a radio link with the ATS instrument.
"Disconnecting ATS"	The system is dropping the radio link to the ATS instrument.
"Full Searching for Target ..."	The ATS instrument is carrying out a full search for the machine target.
"Machine target search failure"	System error.
Measuring Error	System error.
Multiple ATS detected	Another ATS instrument has been detected using the radio channel and Network ID specified for your machine and instrument.
Quick Searching for Target ...	The ATS instrument is carrying out a quick search for the machine target.
Radio Link Lost: Reconnecting ...	Radio contact with the ATS has been lost, and the system is attempting to re-establish the link.
Search Error	System error.
Target Lost	The ATS instrument has lost track of the machine target.
Tracking	The ATS instrument is correctly tracking the machine target.
Waiting for ATS	Occurs when you first start the ATS and when you enter the ATS dialog. The AccuGrade System is waiting for information from the ATS instrument.
Waiting for start	Waiting for the ATS system to start.

To view detailed ATS diagnostics, complete the following steps:

Show/hide table




Illustration 2	g01421881

From the "Diagnostics" dialog, press "ATS".

The "Diagnostics - ATS " dialog appears.

The first "Diagnostics - ATS" screen is the "Machine Target" screen. This is the screen that appears if you press "Machine Target". The fields in this screen are explained below.

Show/hide table

Table 5
Field	Explanation
Northing Easting Elevation	The computed location of the target, in terms of northing, easting and elevation.
Slope distance Horizontal angle Vertical angle	The observed location of the target relative to the ATS, in terms of slope distance, horizontal angle and vertical angle.
Tracking status	ATS tracking status. Refer to Table 6.
Search window	The position of the target relative to the search window specified during ATS set up.
Prism constant	The specified prism constant for the target.

The ATS instrument reports its tracking status to the system. ATS tracking status messages are listed in Table 6.

Show/hide table

Table 6
ATS Tracking Status messages
Tracking Status	Meaning
N/A	No data being received from the instrument.
No signal	No target is being tracked.
Tracking	A target is being tracked.
ATS not level	ATS600 only - the ATS instrument is tilted beyond the range of the compensator.
Auto Search	ATS600 only - the ATS instrument is performing an automatic search for the target.
Servo On	ATS600 only - the ATS instrument is powered up

Show/hide table




Illustration 3	g01421882

From any screen in the "Diagnostics - ATS" dialog, press "ATS".

The "ATS" screen appears.

This screen displays the name of the point at which the ATS insturment was set up, if the point has a name, in the form "ATS <name>". For example, "ATS South". The fields within this screen are explained below.

Show/hide table

Table 7
Field	Explanation
Northing Easting Elevation	The known or measured setup location of the ATS, in terms of northing, easting and elevation
Compensator	The compensator status
Scale factor	The scale factor
Inst. height	The setup height of the instrument

Show/hide table




Illustration 4	g01421883

From any screen in the "Diagnostics - ATS" dialog, press "Backsight".

The "ATS Backsight" screen appears. Refer to Illustration 4.

The "ATS Backsight" screen displays information about the backsight. This information is taken in order to establish the orientation of the ATS instrument. The fields within this screen are explained in Table 8.

Show/hide table

Table 8
Field	Explanation
Northing Easting Elevation	The known location of the control point used for the backsight, in terms of northing, easting and elevation
Slope Distance Horizontal Angle Vertical Angles	The observed location of the control point relative to the ATS, in terms of slope distance and horizontal angle
Tracking Status	ATS tracking status. Refer to Table 9.
Search Window	The position of the target relative to the search window specified during ATS set up.
Prism Constant	The specified prism constant for the target.

The ATS instrument reports its tracking status to the system. ATS tracking status message are listed in Table 9.

Show/hide table

Table 9
Tracking Status	Meaning
N/A	No data being received from the instrument.
No signal	No target is being tracked.
Tracking	A target is being tracked.
ATS not level	ATS600 only - the ATS instrument is tilted beyond the range of the compensator.
Auto Search	ATS600 only - the ATS instrument is performing an automatic search for the target.
Servo On	ATS600 only - the ATS instrument is powered up.

From any screen in the "Diagnostics - ATS" dialog, press "ATS". The "ATS" screen appears:

This screen displays the name of the point at which the ATS instrument was set up, if the point has a name, in the form "ATS <name>". For example, ATS South. The fields within this screen are explained below.

Show/hide table

Table 10
Field	Explanation
Northing Easting Elevation	The known or measured setup location of the ATS, in terms of northing, easting and elevation.
Compensator	The compensator status
Scale factor	The scale factor
Inst. height	The setup height of the instrumentC

From any screen in the "Diagnostics - ATS" dialog, press "Backsight". The "ATS Backsight" screen appears:

This screen displays information about the backsight taken to establish the orientation of the ATS instrument. The fields within this screen are explained below.

Show/hide table

Table 11
Field	Explanation
Northing Easting Elevation	The known location of the control point used for the backsight, in terms of northing, easting and elevation.
Slope distance Horizontal angle	The observed location of the control point relative to the ATS, in terms of slope distance and horizontal angle.