Relay reaction

The way in which relay programming reacts to the failsafe level depends on P129 Relay Failsafe (page 46). By default:

•Alarm relays have P129 = OFF and so react to the Failsafe Material Level.

•Control relays have P129 = dE and so de-energize the relay when the unit enters Failsafe mode regardless of the Failsafe Material Level.

P072 Failsafe Level Advance

Sets the speed the SITRANS LU01 advances to and returns from the Failsafe Material Level.

 

1

*

Restricted

Advances to/from Failsafe Material Level as set by

 

P003, P700 and P701.

 

 

 

 

Values

 

 

 

 

2

 

Immediate

Failsafe Material Level assumed immediately

 

 

 

 

 

 

3

 

Fast Back

Failsafe Level Advance is restricted, return is

 

 

immediate

 

 

 

 

 

•

P003 Maximum Process Speed

 

•

P070 Failsafe Timer

Related

•

P071 Failsafe Material Level

 

•

P700 Max Fill Rate

 

•

P701 Max Empty Rate

 

 

 

 

 

Relays (P100 to P119)

The SITRANS LU01 has four relays (or digital outputs) used to control devices and alarms. While the number of devices is limited by the relays, all control functions are accessible through software and each parameter is indexed to the relays.

The SITRANS LU01 makes standard application programming easier by providing an extensive list of presets in P100 (Preset Applications).

Standard alarms are set from P101 to P104. In the RUN mode, when the material level:

•rises to a High or High High Alarm value, the associated Alarm and Relay Status indicators are displayed and the allocated relay(s) de-energize.

•falls 5% of Span (P007) below the High or High High Alarm value, the associated Alarm and Relay Status indicators extinguish, and the allocated relay(s) energize.

•falls below the Low or Low Low Alarm value, the associated Alarm and Relay Status indicators are displayed and the allocated relay(s) de-energize.

•rises 5% of Span (P007) above the Low and Low Low Alarm value, the associated Alarm and Relay Status indicators extinguish, and the allocated relay(s) energize.

Note: Enter all standard alarm material level values in Units (P005) or percent of Span (P007) as referenced to Empty (P006).

To display the current value (or enter a new value) in percent of Span, press as required to display the % symbol.

Control functions allow each relay to be configured independently to take advantage of the SITRANS LU01’s advanced features and flexibility. Start with a preset application and then change the required parameters to make the task more efficient.

7ML19985BE02

SITRANS LU01 – INSTRUCTION MANUAL

Page 39

Parameters

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Siemens LU01 instruction manual Relays P100 to P119, P072 Failsafe Level Advance, Relay reaction
Page 44 Page 46

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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