Breaker Data Adapter (BDA)

WL Circuit Breaker

Troubleshooting List

Fault Description

Solution

 

Ensure that you are using a fully-assigned null modem cable.

 

With a null modem cable, pins 2 and 3, 4 and 6, and 7 and 8

 

must be assigned and reversed with respect to each other.

 

Before starting the BDA, disconnect the null modem cable from

An error message appears (e.g. Modem

the BDA and reboot the BDA (DEVICE LED is green). Then reconnect

the cable.

not initialized, etc.) a PPP connection is

The COM port that you are using on the target system must not be

established with the BDA.

used by a different application.

 

 

Check the modem and data communications connection settings. You

 

must choose "555". Only the user name "ppp" works.

 

In the Control Panel, you also have to set the baud rate for the COM

 

interface that you are using to 115200.

 

Ensure that the option "Use Java v1.4.0 <applet>" is active

 

in the browser.

 

Delete the cache memory of the browser.

Nothing happens after you select the lan-

Open the Java plug-in operator panel in the Control Panel. Check that

the plug-in is active and Version 1.4.0 is selected under "Extended".

guage on the first page.

On the "Browser" tab page, the browser that you are using must be

 

active, and the Java VM cache can be deleted.

 

Then restart the system.

 

If the problem persists, remove any older versions of Java you

 

may have.

 

 

 

Check the settings for the gateway, the subnet mask, and the proxy.

 

Enter the address of the BDA to be addressed in the proxy so that

 

it is not routed via the proxy. This only works if the BDA is located

 

in the network specified by the subnet mask.

You cannot establish a connection to the

Ping the BDA address to check whether TCP/IP communication is

established to the BDA. If the ping does not work, check the network

BDA Plus via the Ethernet.

configuration again with your network administrator. If the BDA replies

 

 

to a ping but not to a request to call up the browser, reset the BDA.

 

The BDA must have already been booted with a connected Ethernet

 

cable so that the Ethernet interface is activated. To solve the problem,

 

connect the active Ethernet cable and boot up the BDA.

The system displays a message about

The security level of the browser is set to "Secure" and stops Java

applets from running, for example. For this reason, you have to reduce

security settings and the BDA pages

the security level to a level where the security message no longer

stop loading.

appears and the BDA pages are displayed.

 

 

 

Table 4-3This troubleshooting list helps you solve any problems you may encounter communicating with the BDA. If you have any other problems, Technical Assistance at 1-800-964-4114 will be happy to help.

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WL MODBUS Communication and Electronic Accessories • January 2005

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Siemens UL 489, UL1066 specifications Troubleshooting List Fault Description Solution

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.