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For BEI Products: LP Series Programmable Encoder
Housing Size | Standard: Ø 90mm X 26mm deep Terminal Box: 128mm tall X 116mm wide X 25mm deep. (See dimensional drawings for detail) |
Shaft Size | Hollow Shaft: Ø 1/2” to Ø 1” blind or through Solid Shaft: Ø12 mm x 20 mm with keyway, Ø 3/8“x 7/8“ with flat Hollow Shaft w/ Integrated Coupling: 14mm, 20mm, 1/2”, 3/4” |
Permissible Shaft Loads | Axial: 40 N Radial: 80 N |
Shaft Runout | Hollow Shaft: 0.1 mm [0.004”] TIR Solid Shaft: 0.02 mm [0.001”] TIR Hollow Shaft w/ Integrated Coupling: N/A |
Static/ Dynamic Torque | 30 / 300 mN.m [4.2/ 42 oz-in] @ 25°C |
Bearings | 6807 - Sealed |
Material | Cover: Clear anodized aluminum Body: Clear anodized aluminum Shaft: AISI 303 stainless steel |
Bearing Life L10h(Theoretical Mechanical Lifetime) |
> 18.109 turns / 100000 hours |
Continuous Max. Speed | 6000 RPM, (Reference Chart 1. Speed vs Temperature) |
Shaft Moment of Inertia | < 84000 g.mm2 [11.9 x 10-3 oz*in*sec2] |
Weight (approx.) | Terminal Box: 790g M12 or cable: 450g |
Absolute | Incremental | |
Output Format | SSI compatible (RS422) | Two channels in quadrature + index and complements |
Resolution | Up to 16 BITS | Up to 10,000 CPT |
Encoder Accuracy | ±0.1° | ±0.1° |
Supply Voltage Vcl | 5-30 Vdc | Cable or M12: 5-30V (28/V) and 4.75-30V (28/5) Terminal Box: 11-30V (28/VR),5-30V (28/V) and 4.75-30V (28/5) |
Supply Current (No Loads) | 75mA Typ | Cable or M12: 75mA Terminal Box: 100mA (28/VR), 75mA (28/V and 28/5) |
Current Per Channel Pair | 40mA max | Cable or M12: 40mA Terminal Box: 60mA (28/VR), 40mA (28/V and 28/5) |
Voltage/Output | 28/SI: SSI RS485 w/o parity 28/SR: SSI RS485 reinforced w/o parity Terminal Box version only |
28/V: Line driver 5-30 V In/Out; PushPull 28/5: Line driver with 5 V (TTL) regulated output 28/VR: Push Pull 11-30V reinforced. Terminal Box version only |
Short Circuit Proof | 28/SI: Yes (except to V+)28/SR: Yes | Cable or M12: Yes (28/V) and Yes (except to Vcl) (28/5) Terminal Box: Yes (28/VR), (28/V) and (28/5) except to Vcl |
Reverse Polarity Tolerant | Yes | Yes |
Wiring Fault Tolerant & Overvoltage Prot. | 28/SI: No 28/SR: Yes |
Cable or M12: No Terminal Box: Yes Up to 60Vdc (28/VR) and No (28/Vand 28/5) |
Frequency Response | Cable or M12: Up to 1MHz Terminal Box: Up to 300kHz (28/VR), Up to 1MHz (28/V and 28/5) |
Cable or M12: Up to 1MHz Terminal Box: Up to 300kHz (28/VR), Up to 1MHz (28/V and 28/5) |
Output Terminations | Cable, M12 or Terminal Box | Cable, M12 or Terminal Box |
EMC | EN 61000-6-2 : 2005, see user manual for details EN 61000-6-4 : 2017 + A1 : 2011, see user manual for details |
EN 61000-6-2 : 2005, see user manual for details EN 61000-6-4 : 2017 + A1 : 2011, see user manual for details |
Isolation | 1000V | 1000V |