Rotary Mill Duty Heavy Duty Industrial Duty Light Duty Absolute Instrument Linear Accessory Display Controller ® SLIM Tach SL1250 Bearingless Heavy Duty Incremental Encoder NorthStar’s SLIM Tach 1250 is an economical, bearingless, heavy duty encoder designed for 12.5 inch C face motors. With resolutions up to 2048 PPR and NorthStar’s innovative magnetoresistive technology, this dependable product combines high accuracy with reliable service. Made of anodized aluminum and with a net thickness of only 1.4 inches, the SL1250 comes with one or two electrically independent and totally isolated output modules and a high temperature version for operation needs up to 120° C. Features: Mounts to NEMA 12.5 inch C face motor Benefits Thin, compact, and occupies only 1.4 inches of motor shaft Rugged, reliable, magnetoresistive technology The SLIM Tach 1250 assembly is imprinted Easy installation with no brackets or couplings with magnetic poles, providing higher pulse Hard, anodized aluminum construction counts than traditional encoders. Its totally encapsulated electronics make it immune to machine vibration and contaminants. It is For more information on this product, visit resistant to dirt, grease, water, oil, fibers, www.northstarencoders.com and enter: SL1250 and dust, making it reliable in hot, wet environments. A high power line driver comes standard. Clean, crisp signals are Dimensions Dim inches(mm) ensured over long cable lengths, decreasing the need for signal repeaters and saving on total installation costs. Application The SLIM Tach 1250’s pulse wheels are available in thru-shaft sizes from 0.625 inch to 3.75 inches. The pulse wheels are keyless and very easy to align. The SL1250’s thin profile leaves plenty of room on the motor shaft for a brake or pulley and it mounts without bearings, adapter plates, or couplings, eliminating a common source of mechanical problems. 614-818-1150 Toll Free: 877-356-1962 Fax: 614-891-6909 sales@northstar-tec.com SLIM Tach SL1250 Specifications SL1250 Ordering Information Electrical Call 877.311.4190 for Assistance Pulses Per Revolution 64, 128, 256, 512, 512Z, 1024, 1024Z, 2048, 2048Z (Resolution) Frequency Response 0 - 120 kHZ Output Format A, B phase @ quadrature, Z (index) phase once per A Encoder Types rev (gated), and complements (A,B,Z) Single Sensor Output SL1250 S125 Pulse Duty Cycle 50 + 15% (within defined mechanical specifications) Dual Sensor Output SL1250 D125 o o Quadrature Accuracy 90 + 22 (within defined mechanical specifications) B Pulses Per Revolution Output Type High speed, differential line driver 64, 128, 256, 512, 512Z, 1024, Rise and Fall Time Less the 500 ns @ 10,000 pf typical load with 5-15 VDC line driver OR 1024Z, 2048, 2048Z Less than 1 μs @ 10, 000 pf typical load with 5-24 VDC line driver C Shaft Sizes Supply Voltage 5-24 VDC 0.625” thru-shaft J04 Current Consumption 40 mA typical plus line driver load with 5-15 VDC 0.875” thru-shaft J05 line driver OR 65 mA typical plus line driver load with 5-24 VDC 1.000” thru-shaft J06 line driver 1.125” thru-shaft J07 Current Output 150 mA with 5-15 VDC line driver 1.250” thru-shaft J08 OR 1.375” thru-shaft K09 250 mA with 5-24 VDC line driver 1.500” thru-shaft K10 Output Voltage Levels Differential output: (Supply Voltage less 0.6V) during 1.625” thru-shaft K11 on cycle, ground during off cycle 1.750” thru-shaft K12 Connector 18” Pigtail, Latching industrial connector, Industrial 1.875” thru-shaft K13 connector on 18” cable 2.000” thru-shaft K14 Suggested Cable 22-16 AWG, 10 conductor, shielded, twisted pair 2.125” thru-shaft K15 Output Circuit Type 5-15 VDC Line Driver (standard) OR 5-24 VDC Line 2.250” thru-shaft K16 Driver (optional) 2.375” thru-shaft K17 ESD Protection 2 kV 2.500” thru-shaft K18 2.875" thru-shaft K19 Electrical Protection Reverse polarity and short circuit protected End-of-shaft and custom bore Mechanical shaft sizes 0.500” to 3.750” available. Contact NorthStar for Maximum Operational Speed 6,000 RPM ordering number. Available Shaft Sizes 0.625" to 3.750" thru-shaft and end of shaft style available. See ordering table for sizes. D Connectors Shaft Axial End Play Up to + 0.045” (1.14 mm) 18” pigtail cable P Acceleration Rate 12,000 RPM/sec Latching industrial connector C Shaft Radial Runout 0.002” (0.05 mm) Total indicated runout Industrial connector on 18” Q cable C Face Runout 0.004" (0.1 mm) Total indicated runout (Mounting Flange) Air Gap 0.019” (0.48 mm) + 0.008” (0.2 mm) E Temperature Ranges Mechanical Options No cover (standard), Flat thru-hole cover, Flat cover o o L -40 C to 90 C Operation without hole o o H -40 C to 120 C Operation Number of Encoder Outputs Single (standard), Dual (optional) Nominal Encoder Diameter 18” (457.2 mm) F Options Enclosure Material Anodized Aluminum 5-24 VDC Line Driver V Enclosure Configuration 12.5” diameter motor face to meet NEMA MG1-4 Flat thru-hole cover F standards (excluding C face runout) Flat cover without hole T Unit Weight/Unit Dimensions 11 lbs. (5 kg)/ 13.13” (333.5 mm) x 18.94" (481 mm) x 2.0” (51 mm) Example Boxed Unit Weight/Boxed Unit 17 lbs. (7.7 kg) / 12” (305 mm) x 17” (432 mm) Dimensions x 17” (432 mm) A BCD E F S125 1024Z J18 P L VF Environmental o o o o Operating Temperature Ranges - 40 C to 90 C OR -40 C to 120 C o o o o Storage Temperature - 40 C to 120 C OR -40 C to 120 C Operational Humidity 98% condensing Vibration 5 to 2000 Hz at 18 Gs Shock 1 meter drop tested, minimum 30Gs Environmental Rating IP65, NEMA 4 & 12 (sensor, electronics, connector) Chemical Resistance Salt spray, most solvents, mild acids and bases *Specifications subject to change without notice What is Straight Shot? Straight Shot directs you to the web portal where you can quickly access the product information you need. Straight Shot codes, such as RIM6200, exist for each product or class of product. Go to our web site (www.northstarencoders.com) and type the appropriate product code in the clearly defined box and hit “GO”. NorthStar Technologies, Inc., 575 McCorkle Blvd., Westerville, OH 43082 614-818-1150 877-356-1962 Fax: 614-891-6909 sales@northstar-tec.com 791-7038-00-A