Siemens UL1066 Password Protection, Sentron, Operation Example, Printing, Comparing Parameters

Models: UL 489 UL1066

1 92
Download 92 pages 35.36 Kb
Page 90
Image 90

Breaker Data Adapter (BDA)

WL Circuit Breaker

Password Protection

All write actions that would result in a change to the status or a parameter in the circuit breaker are password protected. This ensures that parameters cannot be changed and switching is impossible without this password.

Note: The electronic relays of the COM16 module are required to open and close the WL via the BDA.

The default password is

"sentron"

This can be changed by choosing "Extras > Password" in the BDA tree (recommended). You have to enter the new password twice. When you click OK, the BDA asks you for the old password.

If you have forgotten it, it can be reset by means of a master password. To do so, contact Technical Assistance at 1-800-964-4114 seainfo@sea.siemens.com

Operation Example

This example describes the functionality of the BDA. If you want to set the MODBUS address of the COM16 module for a WL Circuit Breaker, open the Communication node by choosing "Device Parameters

>Circuit Breaker". Then click the input/output field next to the MODBUS address and edit it with the new address. Once you have changed this parameter and exited the field, the outline turns blue to indicate parameters that have not yet been transferred to the circuit breaker.

You can then change other parameters. If you want to transfer the modified parameters to the circuit breaker, click OK on this page.

If the parameter transfer process is the first write action in this session, the system prompts you to enter the password. Once you have entered the password successfully, the data is transmitted to the circuit breaker.

If you want to reset the modified parameters, click the "Undo" button.

If you exit the parameters page without clicking OK, the changes are ignored.

Printing

Since Java applets are used, the normal print function in your browser on the parameter pages will not provide a satisfactory printout.

If you want to print the parameters for documentation purposes, open the pages to be printed from the tree in the BDA. All the parameter pages are displayed again under "Extras > Print", and you can print them individually as required using the print menu in your browser.

Comparing Parameters

The parameter comparison function is used to check whether the parameters set in WL Config or the BDA match those in the device. The following parameters are checked:

Protection parameters A and B

Extended protection function parameters

Threshold value settings

Measurement function settings

Communication parameters

Settings for the configurable output module

The parameter comparison function can be used, for example, to ensure that the set parameters are transferred without any errors once they have been downloaded to the device.

It is not possible to determine whether the parameters and settings loaded to the device have actually been transferred. This is because, for example:

BDA just forwards parameter changes. Whether a parameter is correct can only be verified in the memory location (e.g. in the trip unit). If this changes the value because one has exceeded the maximum value, for example, the modified value is reported back to the BDA. This discrepancy would be detected when a subsequent parameter comparison is performed.

In the BDA interface, not all values regarding the differences between minimum/maximum values and other parameters are checked. This means that a parameter could be entered that cannot be copied in the trip unit in its current form.

4/251

WL MODBUS Communication and Electronic Accessories • January 2005

Page 90
Image 90
Siemens UL1066, UL 489 specifications Password Protection, Sentron, Operation Example, Printing, Comparing Parameters

UL 489, UL1066 specifications

Siemens UL1066 and UL489 are essential components in the landscape of electrical equipment, specifically in circuit protection and control. These standards ensure reliability, safety, and efficiency in various applications, including industrial, commercial, and residential settings.

The Siemens UL1066 is primarily focused on disconnect switches. These devices are designed to isolate electrical circuits, ensuring the safety of both personnel and equipment during maintenance or in case of faults. One of the key features of UL1066 disconnect switches is their high breaking capacity, enabling them to handle significant fault currents without failure. This characteristic is crucial in protecting downstream equipment from damage caused by short circuits. The UL1066 switches are also known for their robust construction, often featuring a metal enclosure that enhances durability and environmental resistance. Additionally, these switches can be operated manually or remotely, offering flexibility in operation and control.

On the other hand, Siemens UL489 circuit breakers provide comprehensive protection against overcurrents and short circuits. These devices not only interrupt fault currents but also protect connected devices from damage due to overload situations. Key features of UL489 circuit breakers include adjustable trip settings, which allow users to customize the response to overcurrent conditions based on specific application requirements. This adaptability makes them suitable for a wide range of environments, from large industrial plants to smaller commercial buildings.

Both UL1066 and UL489 products are constructed with advanced technologies, such as thermal-magnetic or electronic trip mechanisms in UL489 devices, ensuring precise and timely interruption of fault currents. These technologies promote energy efficiency and stability within electrical systems. In addition, many of these devices are equipped with indication features, providing clear visual status cues for quick assessment in emergency situations.

In terms of characteristics, both UL1066 and UL489 devices adhere to rigorous testing and certification processes to meet UL standards. This compliance assures users of their performance and reliability. Furthermore, the devices are designed to accommodate a wide range of operating temperatures and environmental conditions, making them versatile choices for various applications.

In summary, Siemens UL1066 and UL489 devices are paramount in ensuring safety and efficiency in electrical circuits. Their advanced features and robust construction make them indispensable in protecting both personnel and equipment in an array of industrial and commercial applications.