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
