Integrated Magnetic Power Module
Buck (Step-Down)-Low Voltage
Buck (Step-Down)-Medium Voltage
Boost (Step-Up)
DC-DC Power Modules
Magnetically Integrated Power Module (SiP)
Buck (Step-Down)-Multiple Outputs
Buck (Step-Down)
Boost (Step-Up)
Customized DC-DC Converters
Tailored Power Modules: Precision Solutions for Your Unique Needs.
Contact Us Today to Discuss Your Project!
DC-DC Power Modules
Customized DC-DC Converters Explore DC-DC ConvertersEncoder Products
Explore Rotary EncoderMagnetic absolute encoder with split-type (bearingless) modular design. Features 17-bit single-turn resolution with 16-bit multi-turn counter, RS485 2.5MHz communication, and ultra-lightweight construction at approximately 50g. Magnetic sensing technology provides reliable position feedback in harsh industrial environments where dust, moisture, and vibration challenge traditional optical encoders. Ideal for motor rear cover mounting.
This product is mainly used for motor rear cover position feedback. It provides absolute position data and auxiliary signals required by accurate position and speed control units.
| Parameter | Specification |
|---|---|
| Technology | Magnetic absolute sensing (split-type bearingless) |
| Single-Turn Resolution | 0~131,071 (17-bit) |
| Multi-Turn Counter | 65,535 (16-bit, battery-backed) |
| Interface Protocol | RS485 |
| Baud Rate | 2.5 MHz | Communication frequency ≤ 16K| Communication frequency ≤ 16K |
| Supply Voltage | 4.75V ~ 5.25V (5V DC ±5%) |
| Differential Output Level | High: 3.5V min / Low: 1.7V max |
| Along Change Time | < 100ns |
| Allowable Shaft Deviation | Axial Runout: <0.1mm / Radial: ±0.1mm / Radial Runout: <0.1mm / Inclination: <0.1° |
| Max Operating Speed | 6,000 rpm |
| Moment of Inertia | 0.72 kg·m² |
| Rotor Angular Acceleration | ≤80,000 rad/s² |
| Weight | ≈0.05 kg (50g, without cable) ultra-light |
| Battery Voltage | Fault warning & battery voltage warning |
| Operating Temperature | -10 °C to +105 °C |
| Vibration | 10-55Hz 1.5mm / 55-2000Hz 98 m/s² (XYZ, 2h/axis, 6h total) |
| Mechanical Shock | 980 m/s² (100G), 11ms, 3 times per XYZ (18 total) |
| Insulation Resistance | 50 MΩ |
| Protection | Motor back cover protection |
Example Part Number
M-S-16-17-F-L-6-B
● Multi-turn bits (16), encoder height (L/H), and shaft diameter (6/8/X) are selectable at time of order. Two digits represent the number of bits for single and multiple turns.
| Function | 5V | GND | 485+ | 485- | Battery + | Battery GND | P (PE) |
|---|---|---|---|---|---|---|---|
| Cable Color | Red | Black | Blue | Yellow | Brown | White | Shielded Mesh |
The following drawing shows mechanical dimensions for the MS Series split-type magnetic absolute encoder. All dimensions are in mm. Verify critical dimensions with EPOCH technical support before finalizing motor housing design.
The EPOCH MS Series is a magnetic absolute encoder utilizing split-type bearingless technology with RS485 2.5MHz communication. Unlike traditional optical encoders, magnetic sensing provides reliable operation in harsh environments with dust, moisture, and vibration. The ultra-light ~50g design is ideal for motor rear cover mounting where space and weight are critical factors. Engineers should verify shaft diameter, mounting hole pattern, and multi-turn requirements before specifying.
EPOCH is an independent encoder supplier. Verify all mechanical and electrical parameters before integration.
Q: What is the difference between a magnetic absolute encoder and an optical absolute encoder?
Magnetic encoders use magnetic field sensing instead of optical glass code disks, making them inherently more resistant to dust, moisture, vibration, and shock. The MS Series magnetic absolute encoder is ideal for harsh industrial environments where optical encoders may fail prematurely. Resolution is typically lower than optical (17-bit vs up to 25-bit), but reliability in contaminated environments is significantly higher.
Q: What is the weight and form factor of the MS Series?
The MS Series magnetic encoder weighs approximately 50g (0.05kg), making it an ultra-lightweight solution for motor rear cover mounting. The split-type bearingless design allows modular integration without additional bearing support.
Q: What resolution and interface does the MS Series support?
The MS Series offers 17-bit (131,071 steps) single-turn resolution with selectable 16-bit multi-turn (65,535 turns), communicated via RS485 at 2.5MHz baud rate.
Need custom magnetic encoder configuration, shaft size, or bulk pricing? Contact our sales team.
Discover all the technical specifications by downloading the datasheet today.
| Part Number | Interface |
Dimensions
(mm) |
Resolution Ranges | Resolution Counter |
Communication Frequency |
Working Temperature |
Communication Frequency |
Operation Speeds |
Protection Structure |
Footprint 3D | Datasheet | Sample |
| RZ35A08 | RS485 | Φ35mm | 17~23 Bits | Single/Multi-Turn | Differential output | -20°C-+105°C | 16K | 6000rpm | IP40 |  |
 |
|
| RZ Series | RS485 | Φ48mm | 17~23 Bits | Single/Multi-Turn | Differential output | -20°C-+105°C | 16K | 6000rpm | IP40 | |
|
|
| UZ4409 | RS485 | Φ44mm | 1000-5000CPR | Single/Multi-Turn | Differential output | -20°C-+105°C | 500khz | / | IP40 | |
|
|
| UZ Series | RS485 | Φ48mm | 1000-5000CPR | Single/Multi-Turn | Differential output | -20°C-+105°C | 500khz | / | IP40 | |
|
|
| RS972 | / | / | / | / | / | -40°C to +85°C | / | / | / | |
|
|
| RS970 | / | / | / | / | / | -40°C to +85°C | / | / | / | |
|
|
| UK3508 | / | / | / | / | / | / | / | / | / | |
|
|
| F5820 | / | / | / | / | / | / | / | / | / | |
|
|
| F5820 | / | / | / | / | / | / | / | / | / | |
|
|
| F5815-02 | / | / | / | / | / | / | / | / | / | |
|
|
| F5815-01 | / | / | / | / | / | / | / | / | / | |
|
|
| F5810-05 | / | / | / | / | / | / | / | / | / | |
|
|
| S2504 | / | / | / | / | / | / | / | / | / | |
|
|
| S2804 | / | / | / | / | / | / | / | / | / | |
|
|
| S3004 | / | / | / | / | / | / | / | / | / | |
|
|
| S5810 | / | / | / | / | / | / | / | / | / | |
|
|
| G5810-02 | / | / | / | / | / | / | / | / | / | |
|
|
| G3806-03 | / | / | / | / | / | / | / | / | / | |
|
|
| G2803 | / | / | / | / | / | / | / | / | / | |
|
|
| G2504 | / | / | / | / | / | / | / | / | / | |
|
|
| S7008 | / | / | / | / | / | / | / | / | / | |
|
|
| G5806 | / | / | / | / | / | / | / | / | / | |
|
|
| RK Series | / | / | / | / | / | -20°C to +85°C | / | / | / | |
|
|
| RS9140 Series | / | / | / | / | / | / | / | / | / | |
|
|
| RS9100 Series | / | / | / | / | / | -40°C to +85°C | / | / | / | |
|
|
| RS971 | / | / | / | / | / | -40°C to +85°C | / | / | / | |
|
|
| MS Series | |
|
||||||||||
| RK Series | / | / | / | / | / | -20°C to +85°C | / | / | / | |
|
|
| RF28 | / | / | / | Single/Multi-Turn | / | -40 °C ~+85 °C | / | / | / | |
|
|
| RT28 | / | / | / | Single/Multi-Turn | / | -40 °C ~+85 °C | / | / | / | |
|
|
| RF20 | / | / | / | Single/Multi-Turn | / | -40 °C ~+85 °C | / | / | / | |
|
|
| RR28 | / | / | / | Single/Multi-Turn | / | -40 °C ~+85 °C | / | / | / | |
|
|
| RS5 | / | / | / | Single/Multi-Turn | / | / | / | / | / | |
|
|
| RSG35 | RS485 | / | 17-23 Bits | Single/Multi-Turn | ≤16K | -20 ℃ ~+105 ℃ | 16K | 6000rpm | IP40 | |
|
|
| RSU3506 | RS485 | / | 17-24 Bits | Single/Multi-Turn | ≤16K | -20 ℃ ~+105 ℃ | 16K | 6000rpm | IP40 | |
|
|
| MS Series | / | / | 17 Bits | Single/Multi-Turn | ≤16K | -10℃～105℃ | 16K | ≤6000rpm | / | |
|
|
| RZ1337A | RS485 | / | 25 Bits | Single/Multi-Turn | ≤16K | -20°C-+105°C | 16K | 12000rpm | IP40 | |
|
|
| RZ7810 | / | / | / | / | / | / | / | / | / | |
|
|
| RS Series | RS485 | / | 17~23 Bits | Single/Multi-Turn | ≤16K | -20°C-+105°C | 16K | 6000rpm | IP40 | |
|
Essential for Precision and Reliability in Medical Equipment
Improve Automation and Efficiency in Various Robotic Applications
Improve the Efficiency and Reliability of Automation Systems
Accurate Feedback on Position and Speed
English
French
Spanish
Korean
German
Japanese
