P071 Failsafe Material Level

Parameters

If the timer expires (before a valid measurement is made), the SITRANS LU01 advances to the Failsafe Material Level (P071) as restricted by Failsafe Advance (P072).

When a valid measurement is made after the timer expires, the SITRANS LU01 advances to the new material level (if changed), as restricted by Failsafe Advance (P072) and the timer resets.

If the timer expires due to a measurement difficulty, LOE flashes in the Reading display.

Once activated, the Failsafe State initiates the following:

1.The material level is reported based on P071 Failsafe Material Level.

•The unit responds to the new level as programmed (control and alarm relays activate as defined by the programming).

•Individual relays can have independent failsafe responses. See P129 Relay Failsafe.

2.The appropriate error is displayed:

•LOE for loss of echo from the transducer

•Short for a shorted transducer cable

•Open for a cut transducer cable or a defective transducer

•Error for all other problems including reversed Ultrasonic/Temperature transducer terminal connections or wrong Transducer (P004) entered.

When modifying the preset value, set it short enough to protect the process but long enough to avoid false alarms. Only use No Delay (0.0 Minutes) for testing.

The material level reported when a Failsafe State is initiated.

		Range: -999 to		Value in units or % (-50% to 150% of span)
		9999
Values		HI		Level goes to maximum span

		LO		Level goes to 0 span (Empty)

		HOLd	*	Level remains at last reading
	•	P001 Operation
	•	P006 Empty
	•	P007 Span
Related	•	P111 Relay Control Function
	•	P112 Relay ON Setpoint
	•	P113 relay OFF Setpoint
	•	P129 Relay Failsafe

Select the Failsafe Material Level based upon the relay operation required during failsafe operation.

Selecting HI, LO, or HOLd

1.Press FUNCTION to display the Auxiliary Function symbol.

2.Press ARROWS to scroll to the desired option.

3.Press ENTER to set the value.

Page 38

SITRANS LU01 – INSTRUCTION MANUAL

7ML19985BE02

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.

Siemens LU01 instruction manual P071 Failsafe Material Level, Selecting HI, LO, or HOLd

Models: LU01

Parameters

Once activated, the Failsafe State initiates the following: