Description
Quick Specs…
- Thin, compact, and only 0.75 inches thick
- Mounts to 4.5 inches 56 C-Face motors
- Rugged, reliable magnetoresistive sensor technology
- Easy installation with no brackets or couplings
- Hard, anodized aluminum construction
- Single or dual sensor outputs available
Overview / Design Principle:
This reliable encoder may be configured with one or two electrically independent and totally isolated outputs. A high-temperature version is available to meet operational needs up to 120° C. It also comes in a wide variety of shaft sizes, cover choices, and connector options.
The durable SLIM Tach® SL56 operates with unequaled resistance to grease, oil, saltwater, dirt, fibers, and dust. Its hardened, encapsulated electronics make it immune to contamination, heavy machine vibration, and accidental impact, decreasing downtime. Hard, anodized aluminum of aircraft quality makes the SL56 the toughest, yet lightest, C-Face encoder available. A high-power line driver comes standard and guarantees clean, crisp signals over long cable lengths, minimizing the need for signal repeaters.
Each version of the SLIM Tach® SL56 is easy to mount, requiring no bearings, adapter plates, or flexible couplings. Because the SL56 occupies only 0.75 inches of the motor shaft length, a brake, pulley, gearbox, or coupling can also be placed on the shaft. The sandwich version provides double CFace mounting for applications that need the encoder between the motor and another device.
There are no bearings to fail or requirements for flexible couplings because its magnetized drum assembly is attached directly to the shaft. The mill-duty latching connectors are easy to wire with no need to field solder or to struggle with a crimp pin.
Features and Benefits:
- Thru-shaft-shaft versions are standard; a double C-face sandwich version is also available
- 64, 128, 256, 512, 1024, or 2048 pulses per revolution (PPR) with optional index pulse
- 5-24VDC operation, bi-directional quadrature signals with high power, differential line driver outputs
Applications:
The bearingless, heavy-duty, NorthStar SLIM Tach® SL56 mounts directly to 4.5 inch 56 C face motors. With resolutions up to 2048 PPR, it is only 0.75 inches thick and ideal for tight machine configurations.
| Standard Operating Characteristics | |
| Code: | Incremental |
| Pulses per Revolution: | 60-2048 |
| Phasing Sense: | A leads B for Counter-Clockwise rotation (CCW) viewing encoder-mounted end |
| Quadrature Phasing: | 90° ± 22° |
| Symmetry: | 180° ± 54° |
| Index: | 270° gated to falling B edge |
| Number of Output Modules: | Single or Dual Redundant |
|
Electrical |
|
| Input Voltage Requirement: | 5-15 or 5-26 Volts DC |
| Current Requirement: | With Electrical Option L or H: 45 mA typical per sensor module plus line driver load With Electrical Option V or 5: 65 mA typical per sensor module plus line driver load |
| Output Signals: | With Elec Option L or H: 5-15 V Line Driver, 150mA With Elec Option V: 5-26 V Line Driver, 100mA With Elec Option 5: 5V Line Driver, 150mA |
| Frequency Response: | 0 – 120kHz Data & Index |
| Electrical Immunity: | 2kV ESD, Reverse Polarity, Short Circuit |
| Connector: | 10 pin industrial duty latching, sealed NEMA 4 &12, IP65; MS connector or pig-tail |
| Mechanical | |
| Shaft Speed: | 5,000 RPM |
| Mounting Configuration: | 4.5” 56C face mount for NEMA MG1 standards |
| Housing Material: | Cast Aluminum |
| Acceleration Rate: | 12,000 rpm/sec max |
| Shaft Length Required: | 0.7” min |
| Allowable Shaft End-Play: | ± 0.045” |
| Allowable Shaft Runout: | 0.002” TIR |
| Environmental | |
| Operating Temperature Range: | Standard: -40°C to 90°C Extended: -40°C to 120°C |
| Storage Temperature Range: | -40°C to 120°C |
| Humidity: | to 98% RH (non-condensing) |
| Shock (Sensor Module): | 1-meter drop test, 30 G’s Min |
| Vibration: | 18 G’s @ 5-2000 Hz spectrum |
Technical Information
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