LP35 SSI Explosion Proof
Position Sensors & Encoders
For the absolute version Serial Synchronous Interface SSI output provides effective synchronisation in a closed-loop control system. A clock pulse train from a controller is used to shift out sensor data: one bit of position data is transmitted to the controller per clock pulse received by the sensor. Incremental versions provide two channels in quadrature with complements and an index. Resolutuions up to 10,000 cpt are available.
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Contact UsFeatures
- Designed for use in Class I, Div.1 & Zone 1 hazardous areas
- Low profile package saves space
- Excellent resistance to shock and vibration
- 30mm standard through shaft, PEEK reduction hub available
- High protection level of IP66
- High performance in temperatures from –40°C to +100°C
- Resolutions up to 10,000 PPR, incremental or 16 BITS absolute
- Terminal box with Conduit Termination
- Encapsulated electronics
- TTL and HTL electronics
- Reinforced electrical output available on some incremental and absolute models
- Wiring fault tolerant with terminal box connection
- Long cable drive capability
Specifications
| Description | Parameters |
| Housing Size | 124 mm x 156 mm x 52 mm (see dimensional drawings for other configurations) |
| 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 .78“ with flat Hollow Shaft w/ Integrated Coupling: 14mm, 20mm, 1/2”, 3/4” |
| Permissible Shaft Loads | Axial: 40 N [9 lbs] Radial: 80 N [18 lbs] |
| 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, deep groove ball bearing |
| Material | Cover: Hard anodized aluminum Body: Hard anodized aluminum Shaft : AISI 303 stainless steel |
| Bearing Life L10h (Theoretical Mechanical Lifetime) |
> 18.109 turns / 100000 hours |
| Continuous Max. Speed(A) | 6000 RPM, (Reference Chart 1. Speed vs Temperature) |
| Shaft Moment of Inertia | < 130 000 g.mm2 [18.4 x 10-3 oz-in-sec2] |
| Weight (aprox.) | 1.6 kg [56.5 oz] |
| Description | 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° | |
| Supply Voltage Vcl | 5-30 Vdc | |
| Supply Current (No Loads) | 75mA Typ | |
| Current Per Channel Pair | 40mA max | |
| Voltage / Output | 28/SI: SSI RS485 w/o parity 28/SR: SSI RS485 reinforced w/o parity |
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 |
| Short Circuit Proof | 28/SI: Yes (except to V+) 28/SR: Yes |
28/V: Yes 28/5: Yes (except to Vcl) 28/VR: Yes |
| Reverse Polarity Tolerant | Yes | |
| Wiring Fault Tolerant & Overvoltage Prot. | 28/SI: No 28/SR: Yes |
28/V: No 28/5: No 28/VR: Yes Up to 60Vdc |
| Frequency Response | Up to 1MHz (28/V and 28/5) Up to 300kHz (28/VR) |
|
| Output Terminations | Enclosed terminal block, with three conduit fitting options: M16, 1/2” NPT, 3/4” NPT | |
| EMC | EN 61000-6-2 : 2005, see user manual for details EN 61000-6-4 : 2017 + A1 : 2011, see user manual for details |
|
| Isolation | 1000V | |
| Protection Class (sealing) | IP65 | |
| Temperature Range | Operating | -40°C to +85°C |
| Storage | -40°C to +100°C | |
| Mechanical Resistance | Shock | (EN60068-2-27): ≤ 3000m.s-2 (during 5 ms, half sine) |
| Vibration | (EN60068-2-6): ≤ 200m.s-2 (55 … 2 000 Hz) | |
| Humidity | 98% RH without condensation | |
