Troubleshooting Guide

Symptom

Cause

Action

Display blank, Transmit

 

Check Power supply, wiring, and volt-

Neon not flashing, trans-

No power

age switch.

ducer not pulsing

 

 

 

 

 

 

No response to pro-

Obstructed infrared inter-

Clean enclosure “docking bay” and

face, or defective program-

grammer.

programmer magnet slot.

mer

 

 

 

 

 

Displays “Short” and “tb:(#)”.

Displays “Open” and “tb:(#)”.

Short circuited transducer cable or defective trans- ducer.

Transducer not connected

Open circuited transducer cable, or defective trans- ducer.

Repair or replace as necessary.

Connect transducer, or remove Point # from service (P001=0).

Repair or replace as necessary

Displays “Error” and

Transducer connected

Reverse BLK and WHT wires

“tb:(#)”.

wrong

 

 

Wrong transducer (P004)

Enter correct value

 

 

Relocate and/or re-aim transducer at

Displays “LOE”.

Weak or non-existent echo.

material level or object.

 

 

Proceed to Measurement Difficulties.

Displays “EEEE”.

Reading too high.

Reading fluctuates while

Incorrect measurement sta-

material level is still, (or

bilization.

vice versa).

 

Select larger Units (P005), or lower Convert Reading (P061).

Alter measurement Response (P003) accordingly.

See Technical Reference / Measure- ment Response.

Reading is fixed, regard-

Transducer beam

Relocate and/or re-aim transducer at

obstructed, standpipe too

less of the actual mate-

narrow, or transducer

material level or object

rial level.

Proceed to Measurement Difficulties.

mounting resonant.

 

 

Material level reported

Incorrect Empty (zero) refer-

See Empty (P006), Reading Offset

is always “off” by the

(P063), Offset Calibration (P650), and

same amount.

ence.

Offset Correction (P652).

 

 

 

 

Measurement accuracy

Incorrect Sound Velocity

use an ultrasonic/temperature trans-

ducer or a TS-3 temperature sensor.

improves as level nears

used for distance calcula-

See Technical Reference Sound Veloc-

transducer.

tion.

ity.

 

 

Reading is erratic, with

True echo too weak or

Relocate and/or re-aim transducer at

little or no relation to

wrong echo being pro-

material level or object

material level.

cessed.

Proceed to Measurement Difficulties.

 

 

 

Troubleshooting

7ML19985BE02

SITRANS LU01 – INSTRUCTION MANUAL

Page 99

Page 104 Page 106
Page 105
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Siemens LU01 instruction manual Troubleshooting Guide, Symptom Cause Action
Page 104 Page 106

LU01 specifications

The Siemens LU01 is a state-of-the-art train control and signaling system designed to enhance the safety and efficiency of rail networks. This sophisticated system leverages advanced technologies and innovative features to ensure seamless train operations, lower maintenance costs, and improved overall performance.

One of the main features of the Siemens LU01 is its implementation of the European Train Control System (ETCS). ETCS is a vital component in modernizing rail infrastructure across Europe, aiming to standardize various train control systems for enhanced interoperability among different national networks. The LU01 facilitates the integration of ETCS Level 1 and Level 2, allowing for both trackside equipment and onboard systems to work in harmony to manage train movements effectively.

Additionally, the LU01 employs a decentralized architecture that enhances system reliability and minimizes downtime. This design means that it can operate even in the case of individual component failures, ensuring that train operations remain uninterrupted. Furthermore, the LU01 utilizes advanced diagnostic tools and predictive maintenance technologies to monitor system performance continuously. This proactive approach allows for early identification of potential issues and timely maintenance, which contributes to reducing operational costs.

Another critical characteristic of the Siemens LU01 is its capability for real-time data transmission. The system integrates wireless communication technologies, enabling constant connectivity between trains and control centers. This feature allows for real-time updates on train positions, speeds, and other critical operational data, thereby enhancing situational awareness for train operators and maintaining optimal schedules.

Moreover, the LU01 is designed to be compatible with existing rail infrastructure, ensuring a smooth transition for railway operators looking to upgrade their signaling systems without extensive overhauls. This adaptability makes it an appealing choice for both new projects and retrofitting existing rail networks.

In summary, the Siemens LU01 stands out for its cutting-edge features, including support for ETCS, decentralized architecture, real-time data communication, and compatibility with legacy systems. With these technologies and characteristics, the LU01 significantly contributes to the safety, efficiency, and sustainability of modern rail transport systems, making it a pivotal solution in the evolution of railway operations.
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