TEE AS 2501476 - Caterpillar

Laser Catcher (Optional)
The Laser Catcher is a sensor that has a laser detection window that continuously communicates the information about the elevation of the Laser Catcher to the system. The Laser Catcher is mounted on the left side of the stick of the machine. The Laser Catcher communicates over the Controller Area Network (CAN).
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Laser Catcher
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Table 5
Contact Description Of The Laser Catcher    
A     Power    
B     Unused    
C     CAN HI    
D     CAN LO    
E     Unused    
F     Ground    Position Sensing Cylinder (Bucket)
The Position Sensing Cylinder (PSC) measures the rod extension/retraction of the hydraulic cylinder for the bucket. The PSC uses a sensor that is integrated into the cylinder in order to make this measurement.Rotary Position Sensor (Stick)
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Rotary Position Sensor (Stick)The Rotary Position Sensor that is mounted on the stick is used to measure the angle between the stick and the boom. The position sensor is an input to the ECM. The sensors continuously communicate the position of the stick to the ECM.The position sensor for the stick is a pulse width modulated sensor. Pulse width modulated sensors have a duty cycle signal that varies as the condition changes. The sensor continuously generates a PWM signal. The frequency of this sensor signal is constant at approximately 500 Hz. Rotary Position Sensor (Boom)
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Rotary Position Sensor (Boom)The Rotary Position Sensor that is mounted on the boom is used in order to measure the angle between the boom and the body. The position sensor is an input to the ECM. The sensors continuously communicate the position of the boom to the ECM.The position sensor for the boom is a pulse width modulated sensor. Pulse width modulated sensors have a duty cycle signal that varies as the condition changes. The sensor continuously generates a PWM signal. When the ECM receives the PWM signal, the ECM measures the duty cycle in order to determine the position of the boom. The frequency of this sensor signal is constant at approximately 500 Hz. ECM
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Machine ECM
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Machine ECM (1) ECM (2) J1 Connector (Black) (3) J2 Connector (Brown)
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Connectors for the Machine ECM (2) J1 Connector (Black) (3) J2 Connector (Brown)The sensors continuously communicate the position of the stick, boom and the bucket to the ECM. The ECM uses the sensor input to determine the angle of the boom. The ECM then communicates the angle data to the AccuGrade system via the CAN data link. When the ECM receives the PWM signal from the sensors, the ECM measures the duty cycle in order to determine the position.Table 6 lists the contact description for the ECM.
Table 6
Contact Description J1