SSI RSM-2800 Contactless Magnetic Multi-Turn Encoder
16 or 25-bit SSI, Gray or binary | Ø 28 mm | Resolution up to 18 bits | Ø 6 mm shaft or press coupling | 5 VDC or 24 VDC | IP54 / IP65 / IP67 | 14 or 16 turns (up to 5760°)
- Manufacturer: Novotechnik
- Category: Displacement, Encoder, Absolute Encoder, Multi-turn Absolute Encoder, Absolute Magnetic Encoder, Angular displacement sensor, SENSORS
Novotechnik RSM-2800 SSI magnetic multiturn encoder. True-Power-On multiturn sensor.
Sensor rotativo multivuelta True-Power-On, magnético y sin contacto (tecnología magnetorresistiva GMR), Ø 28 mm. Rango de medida de 2 a 16 vueltas. Posición absoluta; detecta las vueltas sin alimentación ni batería de respaldo.
Key points
- Magnético, sin contacto
- Measuring range of 5040° or 5760° (14 or 16 turns)
- True-Power-On System: Counts laps without power; no gears or batteries
- With press-fit coupling or with marked shaft
- IP54 to IP67 protection
- Resolution up to 18 bits; linearity up to ±0.03 %
Technical Frequently Asked Questions
What can be connected to the RSM-2800 SSI magnetic multi-turn encoder?
It can be connected to Novotechnik M12 connectors and cables and Novotechnik rotary sensor couplings and accessories.
How do I order the RSM-2800 SSI magnetic multi-turn encoder?
The order code has 5 fields: mechanical version, turns, Ub, parameters, and connection. For example, RSM-2832-214-141-432 is the version with a 6 mm diameter shaft with a flat surface, IP65 rating, 14 turns (5040°, controlled range), Ub = 24 VDC, 16-bit Gray code SSI, clockwise increments, and an 8-pole, 1 m shielded cable. All the options for each field are available in the order code configurator on this page.
Under what conditions does the RSM-2800 SSI magnetic multi-turn encoder operate?
Operating temperature: -40 … +85 °C (M12 connector: -25 °C). Protection: IP54 / IP65 / IP67.
Properties
| Feature | Specification |
|---|---|
| Measurement data | |
| Measuring range | 14 turns (5040°, controlled range) or 16 turns (5760°, uncontrolled range) |
| Protocol | 16-bit and 25-bit SSI |
| Code | Gray, binary |
| Absolute linearity, 14 turns | ≤ ±0.036 % FS |
| Absolute linearity, 16 turns | ≤ ±0.031 % FS |
| Repeatability | ≤ ±0.5° |
| Hysteresis | ≤ ±1° |
| Common data | |
| Tickets | RS-422 compatible; CLK lines with galvanic isolation by optocoupler |
| Monoflop time™ | 20 ±1 µs |
| Update frequency (internal) | 1 kHz |
| Temperature error | ±0.1 % FS |
| Reverse polarity protection | Yes (power lines and outlets) |
| Ohmic load at the outlets | ≥ 120 Ω |
| Maximum clock frequency | 100 kHz |
| Insulation resistance (500 VDC) | ≥ 10 MΩ |
| General data and environment | |
| Working temperature | -40 … +85 °C (M12 connector: -25 °C) |
| Maximum working speed | 800 rpm |
| Vibration IEC 60068-2-6 | 20 g, 5 … 2000 Hz, Amax = 0.75 mm |
| IEC 60068-2-27 Shock | 50 g, 6 ms |
| DIN EN 60529 protection | IP54 / IP65 / IP67 |
| Insensitivity to DC magnetic fields | < 15 mT |
| Life | > 50 million movements (mechanically) |
| Electromagnetic compatibility | |
| ESD, EN 61000-4-2 (contact and air discharge) | 4 kV, 8 kV |
| Electromagnetic fields (RFI), EN 61000-4-3 | 10 V/m |
| Rapid transients (burst), EN 61000-4-4 | 1 kV |
| Conducted disturbances (HF fields), EN 61000-4-6 | 10 V ef. |
| Magnetic fields, EN 61000-4-8 | 30 A/m |
| Radiated disturbances, EN 55016-2-3 | Industrial and residential area |
| Mechanical data | |
| Housing | PPS-GF40/SF50 temperature resistant plastic |
| Axis | Stainless steel X8CrNiS18-9 (No. 1.4305) |
| Fixation | 2 M4 screws with washers; max. tightening torque 180 Ncm |
| Bearing | Sintered bronze bushing |
| Mechanical tour | Continuous |
| Allowable load on the shaft (static or dynamic), axial and radial | 20 N |
| Starting torque | 0.15 Ncm (IP54), 0.5 Ncm (IP65), 1.0 Ncm (IP67) |
| Weight | approx. 50 g |
| Electrical connection | 4 x 2 x 0.25 mm² (AWG 24) TPE cable, shielded, or M12x1 connector with 0.15 m cable |
| Preferred rates | |
| Box | Preferred shares |
| Mechanical version | 2832 · 2841 |
| Turns of the characteristic | 214 |
| Supply voltage Ub | 1 · 2 |
| Preferred rates | |
| Box | Preferred shares |
| SSI parameters | 41 |
| Electrical connection | 432 · 531 |
| Option | Meaning |
|---|---|
| Example: RSM-2832-214-141-432 = Ø 6 mm shaft with flat, IP65, 14 turns (5040°, controlled range), Ub = 24 VDC, 16-bit Gray code SSI, clockwise increasing and 8-pole 1 m shielded cable. | |
| 1 · Mechanical version | |
| 2802 · 2832 · 2862 | Shaft Ø 6 mm with flat surface, IP54 · IP65 · IP67 |
| 2821 · 2841 · 2871 | Pressure coupling, IP54 · IP65 · IP67 |
| 2 · Turns of the output characteristic | |
| 214 | 14 turns (5040°), controlled measuring range |
| 216 | 16 turns (5760°), uncontrolled measuring range |
| 3 · Supply voltage Ub | |
| 1 | 24 VDC |
| 2 | 5 VDC |
| 4 · SSI parameters (SSI; increasing direction of rotation) | |
| 41 | 16-bit, Gray, time |
| 42 | 16-bit, Gray, counterclockwise |
| 43 | 25 bits (18 data bits), Gray, time |
| 44 | 25 bits (18 data bits), Gray, counterclockwise |
| 45 | 16 bits, binary, time |
| 46 | 16 bits, binary, counterclockwise |
| 47 | 25 bits (18 data bits), binary, time |
| 48 | 25 bits (18 data bits), binary, counterclockwise |
| 5 · Electrical connection | |
| 432 | 1m shielded 8-pole cable |
| 531 | 8-pin M12x1 connector with 0.15m shielded cable |
| The code is formed using one option from each field, in the order shown in the example. Contact us and we will confirm the exact reference. | |
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