Hello, I am seeking assistance with identifying and operating a BBC Veritron DC Drive that is currently unmarked with no identifying plates. I am unable to determine the specific type of drive and am in need of a manual for operating, configuring, and testing purposes. The drive is experiencing issues with powering three DC motors despite receiving AC power from a 2-phase 400V/200V transformer. I require guidance on troubleshooting and establishing the necessary conditions for the drive to function properly. Any advice or recommendations on resolving this issue would be greatly appreciated. Thank you in advance for your assistance.
You can find the answer you're looking for by searching on this forum: http://www.plctalk.net/qanda/showthread.php?t=67640. Unlock valuable insights by browsing through discussions on this platform.
In response to a query by BryanG, I found the answer on the PLC forum here: http://www.plctalk.net/qanda/showthread.php?t=67640. I discovered this forum while researching, but the drive mentioned is not the same type as mine. My motors have 6 terminals - 2 for current, 2 for tacho, and 2 for thermal. This drive has outputs for the rotor and stator - can you explain how it works? I must admit, DC motors and thyristor drives are quite complex subjects for me.
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Reflecting on the past, it appears to be a vintage DC Single Phase drive from the late 1950s or early 1960s, marking the shift from vacuum tubes to solid state technology. The motor in question sounds like a series wound DC motor with only two power connections, A1 and A2 (or A+ and A-). It is crucial not to disconnect the motor from the load for testing, as this could lead to detrimental outcomes. Based on your description of the power source, it seems likely that it is a single-phase system rather than two-phase. Two-phase power was utilized briefly in the northeastern United States before World War II, with the transition to the current 3-phase system we use today. While some may refer to single-phase 120/230V systems as 2-phase, it is technically still single-phase. If provided with a clearer image of the board terminals, I may be able to offer more assistance. Consider upgrading the drive to a newer model or switching to an AC motor with a Variable Frequency Drive (VFD) for enhanced efficiency and performance in the long term.
The merger between BBC and Asea leading to the establishment of ABB occurred in 1988, well before the digital revolution took off. It's been almost 30 years since that merger, and it's unlikely that any information about the drive has been digitized and maintained online for over two decades. As a result, finding the necessary parts to repair it may prove to be a challenge. It may be time to consider replacing it with a more modern alternative.
Hi, I've faced similar issues with a BBC Veritron DC Drive in the past. As you've noted its markings are faded, identifying the exact model can be a bit tricky. However, you might be able to find some clues on the PCB or the circuit board. As for the user manual, it's challenging to provide without knowing the specific model but I'd suggest looking up online forums and websites dedicated to vintage electronic equipment; these often share manuals and troubleshooting guides. Regarding the problem with the motors, a potential solution could be checking the DC output with a multimeter. If there's voltage present but the motors aren't running, it could potentially be a problem with the motors themselves. Hope this helps!
Hello, The lack of identifying plates indeed makes it a bit tricky, but don't worry, we've all faced such conundrums before. First off, I'd recommend you to check if there are any serial numbers or any other indistinct markings that could help in identifying the exact model. Often, these can be found in less conspicuous areas of the drives. Try contacting ABB (the company that took over BBC) as they might keep past records and could assist you better. Regarding your power issue, it might be related to individual motor loads being too high or the drive itself might be unable to regulate the load across the motors properly. Detailed diagnostic testing would be beneficial in identifying the exact issue. Unfortunately, providing a fix would be challenging without knowing the exact model. Good luck!
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Answer: Identifying and operating an unmarked BBC Veritron DC Drive may require consulting the manufacturer's documentation, contacting the manufacturer directly, or seeking assistance from experienced professionals in the field.
Answer: Manuals for BBC Veritron DC Drives can often be obtained from the manufacturer's website, through authorized distributors, or by contacting customer support for assistance.
Answer: Potential causes of the issue could include incorrect wiring, improper configuration of the drive, compatibility issues between the drive and motors, or faults within the drive itself.
Answer: Troubleshooting steps may include checking the wiring connections, verifying the drive settings, testing the drive with a known working motor, and inspecting for any visible signs of damage or malfunction. Consulting the manual or seeking professional assistance may also be beneficial.
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