25 Bit Electronic Multi-turn Absolute Encoder

Overview

The YZE44 series uses phase array optics with a large photoelectric gap for high reliability. Resolution reaches 33554432 (25 bit) with a 16 bit multi-turn counter, which suits servo spindles and machine tools that demand both accuracy and dynamic response.

Phase Array Technology - high reliability
High response speed - 500K
Photoelectric large gap - longer service life
Resolution 8388608 (23 bit) / 33554432 (25 bit), 16 bit multi-turn counter

View this series

Specifications

System and performance

Resolution	8388608 (23 bit), 33554432 (25 bit)
Multi-turn counter	65536 (16 bit)
Absolute positioning accuracy	< 30 arc seconds (depends on the motor and mechanical assembly)
Repetition positioning accuracy	< 1 arc second
Maximum spindle speed	Up to 6000 rpm
Rotor angular acceleration	Up to 80000 rad/s2 on supply power, 4000 rad/s2 on battery power

Electrical and interface

Communication protocol	Tamagawa @ RS485
Communication frequency	Up to 16K
Baud rate	2.5 MHz
Battery voltage fault warning	Yes

Mechanical and environment

Shaft	9 mm taper (1:10) or 8 mm straight
Moment of inertia	0.68 kg mm2
Shaft tolerance	Axial 0.5 mm, radial 0.02 mm, dip angle 0.1 degrees, radial runout < 0.1 mm, axial endplay < 0.1 mm
Mechanical shock	980 m/s2, 11 ms, 3 times per direction, 18 times in total
Vibration	10 to 55 Hz at 1.5 mm amplitude; 55 to 2000 Hz at 98 m/s2, 2 hours per XYZ axis
Working temperature	-20 C to +105 C
Relative humidity	Up to 90% (40 C/21d, without condensation)
Protection	IP40