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WOODWARD PLC Module 5462-718 5462-744 5462-757 5462-758B 5462-916 5462-948 Speed Sensor Board Discrete Input Module FTC Module Rev F 8 Channel T/C Card
5462-718
5462-757
5462-758B
Technical Data Summary |
|
| Part Number | 5462-758B |
| Manufacturer | Woodward (Fort Collins, CO, USA) |
| Key Feature | Miscellaneous Discrete Output Module with 29 LEDs |
| LED Indicators | 28 orange LEDs and 1 red LED |
| Physical Size | 8 7/8" W x 7 5/8" H x 1/2" D |
| Connector | Input slot with 120 pins. Weight is under 2 lbs |
5462-916
Speed Sensing for Gas & Steam Turbines
Speed Sensing Probe Selection, Application, and Installation Variables for Industrial Gas and Steam Turbines
Reliable speed sensing is one of the most important functions in gas and steam turbine control and safety monitoring. With all of the probe types available, passive probes are often the best selection because of simplicity and their attractiveness for safety applications. Either passive or active probes can work with any type of speed gear, but incorrect matching of probe type and tooth profile will lead to reduced operating range and signal robustness. This paper introduces the physics and the basic application differences between the combinations of probe type and tooth profile. Many performance factors interact with each other in the application of passive probes, but the user only has control over probe selection, speed-wheel tooth profiles, and wiring. With the information presented in this paper, system designers and integrators can more reliably choose and apply probes, match the speed tooth to the probe, and design the wiring system to achieve the best possible speed sensing performance.
Rotating machinery requires speed sensing for functional systems such as control, monitoring, and safety. Speed sensing is accomplished using primarily passive magnetic pickups (MPUs) or active proximity probes.
Performance Factors
With the probe physics explained, it is easy to see why there are so many factors involved in good speed sensing. What makes passive probes so difficult to
understand is that all the performance factors interact with each other. Adjusting any of the factors will likely have an effect on the others. Important performance
factors include:
• Range of voltage amplitude
• Range of frequency sensing
• Wiring length
• Speed tooth dimensions
• Probe pole face dimensions
• Sensing circuit parameters and filtering
Figure 1 shows a square tooth passing the probe pole face. Figure 2 shows a simulated example of the resulting waveform at the output of the probe. This
signal has high peaks, and is near zero for a long time, making it vulnerable to zero-crossing noise. Fast signals such as these are wide-bandwidth signals and
can excite resonances in the probe, cabling, and detection circuit. Conversely, for active probes, the fast rising edge is easy to detect by a proximity probe and usually results in clean signals with minimal jitter.
Figure 3 shows a shaped tooth passing the probe pole face. Figure 4 shows a simulated example of the resulting waveform at the output of the probe. This
signal is relatively smooth with lower harmonic content, and does not spend much time near zero. Thus it is easier for the detection circuit to reliably sense
the signal. However, for active probes such as proximity probes, this is not as good as the square tooth case because the slow-rising edge can cause jitter when sensing the on/off threshold.
Another choice is the detection method. Two common methods are threshold detection and zero-crossing detection. Figure 5 shows an example of the
threshold detection method. In this figure, noise has been added to the signal caused from some of the factors discussed above. The two lines at 1.5 V and
1.3 V show the detection levels with some hysteresis to reduce noise sensitivity.
The main drawback of the threshold method is that the threshold must be low enough to sense the minimum desired signal. For a 0.25 V (rms) minimum
signal, this means the threshold must be less than 0.7 V. Figure 6 illustrates the zero-crossing method. The hysteresis band is also shown. In this method, the size of the hysteresis is determined by the minimum desired signal. If the minimum signal is 0.25 V (rms) (approximately 0.7 V pk), the hysteresis band must be less than (2 * 0.7) V. Since a larger hysteresis band makes the circuit less sensitive to noise, it is difficult to make circuits that can detect small signals and are insensitive to noise at the same time.
5462-948 image is for reference only product style, spec ific data of manufacture and product version, please refer to the actual product delivery!
Q: Is your product new or refurbished?
A: All our products are original new with one year warranty.
Q: How many days the goods will arrive my hands if I place the order now?
A: As soon as we receive the payment, I will ship the products immediately.
It usually take 3-5 days from China to your hands.
Q: Could you give me some discount?
A: Contact Stella to get more discount for 5462-758B
Q:Can you ship the goods to my country?
A: Pls don't worry ,We can ship the goods to worldwide
Q:What payment mothod we used?
A:We usually use T/T (Telegraphic Transfer),and we can received with in 1-2days
Q:Can I contact you on Email?
A: You can contact me online to get my email addAmikon sells automation equipment around the world. With a strong focus on older, obsolete, Automation parts, we pride ourselves in providing high quality parts and services to our customers. Our goal is to provide a seamless purchasing experience that trumps the competition. Low lead time, with quick shipping and processing is our utmost concern. Reducing downtime is extremely important to us and our customers take notice! All orders are prepared by our expertly-skilled team and thoroughly vetted before each shipment.
We are specialized in providing world-reknowed brands: All-en Bradley, A-BB , Bently Nevada, GE ,Honeywell,Emerson, Triconex , Hima ,etc. Even some discontinued ones.We pride ourselves on being a leading provider of industrial automation parts and solutions. Extensive Inventory, Competitive Pricing, Fast Delivery, Global Reach and serves a diverse range of industries with 12 month warranty. Contact us today to learn more about how we can support your business needs.
We have a large inventory of spare parts for industrial control systems. Manufacturers cover a wide range and also work with a wide range of suppliers.Fast shipping to provide you with the best solution to meet your urgent needs If we don't have the stock request quotation you need, You can contact Sales Manager Stella help you.
| Woodward | 8440-1750 | Woodward | 5453-203 | Woodward | 5462-744 |
| Woodward | EASYGEN-1500-55B | Woodward | 5437-672 | Woodward | 9907-164 |
| Woodward | 9905-003 | Woodward | 5464-210 | Woodward | 8271-467 |
| Woodward | SA1509-24 | Woodward | 5466-353 | Woodward | 9905-068 2301A |
| Woodward | EASYGEN-2500-5 | Woodward | 5466-355 | Woodward | 9905-792 |
| Woodward | 9905-463 | Woodward | 5461-655 | Woodward | CMW112 |
| Woodward | 5463-785 | Woodward | 5461-648 | Woodward | 8200-226 |
| Woodward | 5463-473 | Woodward | 5461-644 | Woodward | EASYGEN-1000 |
| Woodward | 5464-414 | Woodward | 5462-718 | Woodward | 8440-1809 |
| Woodward | 5464-544 | Woodward | 9907-029 | Woodward | 9907-028 |
| Woodward | 5463-581 | Woodward | 5462-757 | Woodward | 5438-667 |
| Woodward | 5464-013 | Woodward | 5462-948 | Woodward | 5464-643 |
| Woodward | 5464-211 | Woodward | 5462-408 | Woodward | 5464-648 |
| Woodward | 5417-028 | Woodward | 5500-577 | Woodward | 5464-653 |
| Woodward | 5501-380 | Woodward | 5462-916 | Woodward | 5464-850 |
| Woodward | 5417-175 | Woodward | 5462-758B | Woodward | 5466-026 |
| Woodward | 5417-040 | Woodward | 5461-650 | Woodward | 5466-352 |
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