product description:
- Independently Programmable
- 24-Bit Resolution per Channel
- DC to 10 MHz General Purpose Count Rates
- Inputs may be Differential or Single-Ended
- Programmable TTL Resistor Termination
- Full Programmable Interrupt Support
The Abaco Systems / SBS / Greenspring IP-Quadrature Four Channel Decoder IndustryPack Module provides high density, cost-effective flexible implementation of four quadrature decoder channels. Channels may also be used as general purpose counters. Four independent channels provide 24-bit resolution, programmable modes, programmable polarity, interrupt capability, differential or single-ended (RS-422 or TTL/CMOS) input, read-on-the-fly capability, and a count frequency of 0 to 10 MHz.
Quadrature encoders are popular sensors that provide accurate, low cost incremental motion sensing. Most commonly, they are shaft encoders that provide 512 to 2048 counts per revolution. They are also commonly used as linear encoders with resolutions down to 0.005 inch. They are available in nearly any length desired. Most encoders are now optical, using molded assemblies consisting of a pair of LEDs, lenses, photo-sensors, and simple electronics. For rotary motion the assembly senses alternating opaque and clear lines on a rotating wheel. For linear motion the alternating lines may be on a fixed bar and the sensor assembly moves, or vice-versa. The pair of LED and photo-sensors are offset about one-half line width so that direction of motion may be sensed by observing the relative phase of the two outputs. Typical quadrature encoder outputs are a pair of digital logic signals that are nominally 90° out of phase. Some encoders also provide an “index” pulse output once per revolution to provide absolute position information. Most modern encoders run from +5 volts and provide CMOS/TTL logic outputs and/or RS-422 differential logic outputs. RS-422 is recommended where possible because of its inherent noise immunity and the ability to run long distances. TTL logic levels should normally be restricted to cables less than ten feet in length. Quadrature encoders are available from Hewlett-Packard, US digital, and other sources.
➫ Why Choose Changxin?
Changxin aims to promote the continuity of the industrial production process, and we
ensure that our customers can use existing systems as long as possible. We focus on cost savings
and the continuity of your current production process, and extend the service life of existing PLC modules.
➫ Changxin can offer you
We are specialized in providing world-reknowed brands: ABB, FOXBORO, invensys, triconex, Siemens,
schneider,ALLEN BRADLEYand other global DCS system and PLC system, servo system of famous industrial brand.
◎ We offer 100% new and factory original products.
◎ We have plenty products in stock.
◎ Meanwhile all products are 12 months warranty after receiving parcel.
◎ We definitely try our best to avoid any quality problems.But just in case,If there are some workmanship
or material defects with the products, please contact us firstly, we will exchange.
➫ Welcome to cooperate with us!
Q: Are you trading company or manufacturer?
A: Yes, trading company. Who can give you one-stop station automation purchasing.
Q: Do you have any stock or need buy from other suppliers?
A: We have our own warehouse.
Q: Is there any engineer can help for technical supporting?
A: Sure, we have. Our technical team can help you for selecting PLCs, HMI, Servo motor & drive, VFD, low-voltage
products, and softwares. If you need any help, you can contact our technical department directly.
Q: Do you supply 100% original and new products?
A: Of course yes. No copy, no fake, no refurbished! Original only!!!
Q: Do you sell obsolete products? even very old products?
A: If there is new type to replace, we will suggest you to use new one; if not easy for change, we will help to check
the old one with good condition. If used or other conditions, we will tell you the truth.
Q: How long is your delivery time?
A: Generally 1-3 working days if the goods in stock. If large quantity, it will take 5-7 working days after getting the payment.
If not common products, always need 3-4 weeks or 6-8 weeks to order.
Q: Do you have samples? is it free or extra ?
A: No. i am sorry, we have no Sample.
Q: What is your terms of payment ?
A:TT, WEST UNION.
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