Shaft-Tracker - Heavy Duty Resolver with Incremental and SSI Absolute Position Outputs
Features:
- Absolute & Incremental Outputs
- Very Low Cost, High Durability
- High Reliability Brushless Resolver
- No Fragile Optics
- Standard Size 25 Flange Mount
- Robust NEMA 12 Construction
- Single +5 to 30 (24) VDC Power Input
- No External Electronics
- Quadrature Squarewave & Marker VIA Differential Line Driver Outputs
- Zero-Marker Pulse/Index Output
- Serial Absolute Position Data
- Two Twisted Pair Cables to <3000'L
- Multi-Drop I/O up to 32 Units / Input
- Resolution: 4096 Parts Per Turn
- Guaranteed to Replace Optical's
- Multi-turn Absolute Models Too
Description:
Shaft-Tracker is a low cost, self-contained, and universal, electromagnetic shaft encoder that replaces unreliable, and fragile optical incremental encoders; while providing many additional features that are obviously destined to become industry standards.
No external electronics or signal conditioners are required. This volume run encoder is an option-free all inclusive product with good availability and a very modest cost.
The primary sensor is a highly reliable, durable and environmentally tolerant Brushless Resolver (Rotary Transformer). The resolver is packaged with reliable, field proven, high efficiency electronics, in a Robust NEMA 12 rated enclosure.
The solid 3/8" dia. stainless shaft input is supported by two sets of spaced, sealed, & double-shielded ball bearings, allowing the SHAFT-TRACKER to easily tolerate both axial/ and radial shaft loads, shocks, and machine vibrations; significantly increasing the life of the product.
The SHAFT-TRACKER provides both incremental absolute position outputs. The incremental outputs provide real-time data used to track incremental rotary shaft position, speed, or position displacement. A once per revolution absolute zero marker output is provided as a reference/indexing pulse.
The absolute data outputs report true absolute shaft angle, that is not affected by coasting or displacement during a power outage. The absolute outputs can be transmitted several thousand foot long distances with simple 4 conductor cables, and may be used alone or in conjunction with the incremental data to provide: power-up initialization, calibration, or position validation.
The absolute outputs may be: a) event driven by an external proximity/ limit switch or photoeye; to capture a real-time position snapshot, b) shifted out via discrete 5-24V. discrete I/O logic, or c) synchronized by a host clock or command sequence using a standard SSI (synchronous serial) format. A simple shift-in routine available in a ladder diagram type format (CCC app. note #Shaft-PLC-AB).
