CALIBRATION AND MAINTENANCE

UM344-2

FAIL

Transmitter LCD

MXC

 

 

1.If not already in communication with the suspect transmitter, establish communications by executing the "FIND XMTR" routine on the MXC as described in Section 3.2.

2.Press the MXC's STATUS key. If the message "FAILSAFE" appears in the display, the transmitter has failed a self-diagnostic test.

3.Press ERRORS (F2) to display all active transmitter errors. Note which of the error messages in Table 6.1 is displayed (multiple errors can be displayed).

TABLE 6.1 Self-Diagnostics Troubleshooting

 

 

 

 

 

 

 

 

 

 

 

 

MXC

PROBABLE CAUSE

CORRECTIVE ACTION

 

MESSAGE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E2

ROM

ROM CHECKSUM match failed.

Replace Electronics Module

 

 

 

 

 

 

 

 

 

 

 

 

 

E3

RAM

Microprocessor failed, RAM inoperative.

Replace Electronics Module

 

 

 

 

 

 

 

 

 

 

 

 

E4 EPROM

Microprocessor cannot retain

Reconfigure/recalibrate transmitter. Perform

 

 

 

configuration or calibration data.

transmitter TEST (step 4). If TEST fails, replace

 

 

 

 

Electronics Module.

 

 

 

 

 

 

 

 

 

 

 

 

 

E5

TIMER

A major cycle interrupted itself.

Replace Electronics Module

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TRANSMITTER FAILED

 

 

 

 

TRANSMITTER SELFTEST

 

 

 

 

 

 

 

 

 

 

CONT

 

 

 

 

 

 

 

 

 

 

 

 

E6 SENSOR

Three successive A/D sensor

Replace Electronics Module

 

conversions were bad

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.Confirm that the fault still exists by selecting the CALIBRATE/TEST screen from the On-Line Menu of the MXC and press TEST (F3). This instructs the transmitter to perform a self- diagnostic test.

PT101 FAILSAFE

ER-

RORS

EXIT

TRANSMITTER FAILED TRANSMITTER SELFTEST

CONT

Fault Remains:

If the fault remains, the adjacent message will be displayed:

6-18

September 1995

Page 120
Image 120
Siemens UM344-2 user manual Mxc, Self-Diagnostics Troubleshooting

UM344-2 specifications

The Siemens UM344-2 is a cutting-edge industrial controller designed to meet the demands of modern automation and control systems. This powerful device is specifically developed for use in various applications, including manufacturing, process control, and machinery integration. The UM344-2 stands out for its versatility and robust performance in harsh industrial environments.

One of the main features of the Siemens UM344-2 is its high processing speed, which allows for real-time data processing and decision-making. The controller utilizes advanced microprocessor technology, ensuring quick response times and efficient operation. Its architecture supports multitasking, enabling it to manage multiple processes simultaneously without compromising performance.

The UM344-2 features a modular design, which provides flexibility in configuration and scalability. Users can easily add or remove modules to tailor the system to specific application requirements. This adaptability is beneficial for businesses that need to scale their operations or adjust to changing production demands. The controller is compatible with a variety of I/O modules, allowing for seamless integration with other equipment and systems.

In terms of connectivity, the Siemens UM344-2 supports various communication protocols, including Profibus, Profinet, and Ethernet. This versatility ensures smooth data exchange between the controller and other devices in the automation ecosystem, facilitating comprehensive monitoring and control. The inclusion of these communication standards enhances interoperability and allows for the integration of legacy systems with newer technology.

The Siemens UM344-2 is equipped with advanced diagnostic tools, which enable users to monitor system performance and detect potential issues in real-time. This feature reduces downtime and maintenance costs by allowing for proactive management of the system. The controller also supports remote access capabilities, enabling technicians to troubleshoot and configure systems from off-site locations.

Safety is a critical consideration in industrial environments, and the UM344-2 is designed with this in mind. It incorporates safety-certified features, ensuring compliance with international safety standards. Users can implement safety functions directly within the controller, streamlining system design and reducing the need for external safety components.

Overall, the Siemens UM344-2 exemplifies the fusion of technology and practical application, making it an essential component for businesses looking to enhance their automation processes. With its high performance, flexibility, and focus on safety, the UM344-2 is a reliable choice for industries aiming for efficiency and innovation in their operations.