Overview
The AksIM™ is a non-contact high performance off-axis absolute rotary encoder designed for applications with limited installation space. The compact, low profile readhead detects and evaluates the magnetic field of a thin, axially magnetized ring.
Features
- Resolution to 20 bits
- BiSS, SSI, PWM, USB, SPI and serial RS422
- Overall system thickness only 7 mm
- Integrated status LED
Benefits
- True absolute, single track
- Non contact, no hysteresis
- High speed
- Low profile
- High degree of IP protection
- Custom ASIC based magnetic sensor
- Built-in self-monitoring
- Corrosion resistant magnetic ring
Configure and Buy
Configure
Data sheet
Product data
System
Reading type
Axial
Max. resolution
20 bit
Encoder accuracy
±0.05° (before installation - errors caused by mounting inaccuracy of the readhead, ring and drive shaft are not included)
Maximum speed
> 10,000 RPM
Repeatability
Better than unit of resolution
Hysteresis
Less than unit of resolution
Electrical
Supply voltage
4 V to 6 V – voltage on readhead. Consider voltage drop over cable.
Set-up time
10 ms (first data ready after switch-on)
Current consumption
Typ. 115 mA, max. 150 mA
Output load
PWM, SPI: Max. ±20 mA, RS422: 120 mA short term, 60 mA limited
Mechanical
Cable
Ø4.2 ±0.2 mm, PUR highly flexible cable, drag-chain compatible, double-shielded
Inertia
Ring MRA7: 13.1 kg×mm2, Ring MRA8: 79.1 kg×mm2
Available ring sizes (outer diameter)
49 mm, 80 mm
Environmental
External magnetic field
Max ±3 mT (DC or AC) on top side of readhead
Humidity
0 to 100% (condensation permitted)
IP protection
IP64
Shocks (11 ms)
300 m/s2 (IEC 60068-2-27)
Temperature
Operating: –30 °C to +85 °C with static cable, –10 °C to +80 °C with cable under dynamic conditions, Storage: –40 °C to +85 °C
