47147501
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The 47147501 is a high-resolution servo drive with a 24-bit resolution equating to 0.0013 arc minutes per revolution. Manufactured by Pacific Scientific, this drive is part of the SC900 Servo Drives Series and features a software update time of just 1 millisecond. It offers absolute accuracy of ±5.3 arc minutes.
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Product Description:
Pacific Scientific manufactures the 47147501. First off, the Pacific Scientific 47147501 servo drive has a 24-bit resolution. That’s 0.0013 arc minutes per rotation. That’s a very small angular displacement. Resolution is the smallest positional change the drive can detect and control. In practical terms, that means very precise movement and positioning which is required in applications that need precise placement or complex manipulation. The servo drive can do complex motion patterns with high precision because it can detect such small changes. The absolute accuracy of the drive is the difference between the commanded position and the actual position. That’s ±5.3 arc minutes alone and ±25 arc minutes with a 20 arc minute resolver.
To make sure the servo drive can put the motor in the right spot; absolute accuracy is a key parameter. A resolver, a type of rotary transformer, is included to give feedback on the motor’s position; the accuracy of this feedback affects the overall system. The above specs show the intrinsic accuracy of the drive and how the resolver contributes to it. Repeatability, measured as ±0.08 arc minutes rms, is how well the drive can return to the same position. For applications like robotic assembly or pick-and-place where precise and repeated motion is required, this is critical. A low repeatability number means the automated process is more reliable and consistent, as the drive can get to the same position with minimal variation. RMS (root mean square) values are used because they better reflect the statistical distribution of errors and give a more accurate indication of the system’s accuracy.
Noise filtering is required to preserve control accuracy and signal integrity. The importance of filtering is shown by the servo drive’s noise levels, which are 0.3 arc minutes rms without filtering and 0.16 and 0.04 arc minutes rms with 150 Hz and 10 Hz single pole filters, respectively. The location feedback signal can be affected by electrical noise, which can cause instability and errors. The drive can reduce unwanted noise by using filters, which produce a cleaner signal and better control performance. By balancing noise reduction and signal response time, the filter frequency selection allows optimization according to the application requirements finally, how the DC specifies the drive’s offset position changes with temperature offset temperature drift of 0.08 arc minutes/°C. For precision to be maintained in temperature-changing situations, this parameter is critical.
Frequently Asked Questions about 47147501:
Q: What is the resolution of the Pacific Scientific 47147501 servo drive?
A: The Pacific Scientific 47147501 servo drive features a high-resolution 24-bit encoder, equating to 0.0013 arc minutes per revolution. This level of precision ensures fine motor control, making it suitable for demanding industrial automation applications.
Q: How does the 1-millisecond software update time benefit system performance?
A: The 1-millisecond software update time ensures rapid response to input signals, enhancing synchronization and reducing lag in automated operations. This quick update cycle allows for precise control adjustments, improving system efficiency and accuracy.
Q: What is the absolute accuracy of this servo drive?
A: The absolute accuracy of the Pacific Scientific 47147501 servo drive alone is ±5.3 arc minutes. When used with a 20 arc minute resolver, the accuracy extends to ±25 arc minutes, ensuring a reliable position feedback mechanism.
Q: What is the repeatability specification of this servo drive?
A: The drive offers a repeatability of ±0.08 arc minutes rms, meaning it can consistently return to the same commanded position within this small margin of error. This high level of repeatability is crucial for applications requiring consistent and precise positioning.
Q: How does noise filtering affect the performance of the servo drive?
A: Without filtering, the noise level is 0.3 arc minutes rms. With a 150 Hz single pole filter, noise is reduced to 0.16 arc minutes rms, and with a 10 Hz single pole filter, it further decreases to 0.04 arc minutes rms. These filtering options improve signal clarity and enhance control precision.
