ZeroErr eCoder11 RS485 Magnetic Absolute Encoder, 17-Bit or 19-Bit, Single- or Multi-Turn

ZeroErr

$133.00 USD

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Version Absolute value of a single lap (RS485) Absolute value of multiple turns (RS485)

Resolution 17-bit 19-bit

Multiturn Counting Battery Not Include Include (Two pieces per pack)

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Overview

The ZeroErr eCoder11 is an axial-reading magnetic absolute encoder with RS485 versions for single-turn or multi-turn absolute value measurement. Select 17-bit or 19-bit resolution configurations. The multi-turn version is available with or without a multiturn counting battery.

Features

11 mm through-hole design for routing mechanical structures, cables, air lines, and similar items through the encoder.
Non-contact multi-turn absolute operation is available with the multi-turn RS485 option.
RS-485 protocol compatibility with Tamagawa absolute encoders.
8-pin connection; the encoder board has two top-edge connectors and one bottom-edge connector.
Programmable zero position stored in internal EEPROM.
Point-by-point position compensation is programmable and storable on the 19-bit multi-turn configuration.
Specified for use in dust, heavy oil contamination, high- and low-temperature, and complex electromagnetic environments.
Designed for convenient installation and controllable accuracy, with a precision positioning reference for fast, accurate installation.

Options

Single-turn RS485: 17-bit or 19-bit resolution; multiturn counting battery not included.
Multi-turn RS485: 17-bit or 19-bit resolution; multiturn counting battery not included or included (two pieces per pack).
19-bit multi-turn RS485: up to 19-bit resolution, 2¹⁶ counting revolutions, stated repeatability of ±15″, and programmable, storable point-by-point position compensation.

Specifications

General Technical Specifications

Parameter	Value
Model	eCoder11
Maximum absolute tolerance	<0.1°
Repeatability	±15″
Reading type	Axial reading
Resolution	17 bit to 21 bit and 16-bit multiturn counter option
Maximum speed	6,000 RPM (eCoder35, eCoder45, eCoder65, eCoder35H) 12,000 RPM (eCoder11, eCoder18, eCoder20)
Hysteresis	Less than one unit of resolution
Supply voltage	4.7 V to 5.4 V
Current consumption	105 mA to 125 mA (eCoder11, eCoder18, eCoder20) 70 mA to 90 mA (eCoder35, eCoder45, eCoder65) 115 mA to 130 mA (eCoder35H)
Connector	8-pin connection
Battery standard voltage	3.6 V
Battery warning voltage	<3.05 V
Battery operating current	4 μA
Storage temperature	-40 to +105 °C
Operating temperature	-40 to +105 °C
External magnetic field	±20 mT

eCoder11 Mechanical Specifications

Parameter	eCoder11
Magnetic ring inner diameter	11 mm
Magnetic ring outer diameter	30 mm
Magnetic ring weight	3.9 g
Magnetic ring thickness	3 mm
Readhead inner diameter	11 mm
Readhead outer diameter	30 mm
Readhead weight	3.8 g
Readhead maximum thickness	6 mm
Readhead arc length	360°
Maximum resolution	19 bits

Additional Design Information

Through-hole diameter: 11 mm.
Maximum thickness: 9.4 mm.
Assembly tolerance: up to 0.1 mm.

Installation Drawing Dimensions

Dimension	Value
Overall outer diameter	Ø30 mm
Inner diameter	Ø15 mm
Overall length in one view	31.5 mm
Mounting holes	2 × Ø2.1 mm
Specified diameter	Ø11.2 mm
Specified dimension	25.6 mm
Specified dimension	20 mm
Specified dimension	13.8 mm
Specified dimensions	2.7 mm
Specified dimension	4.7 mm
Specified dimension	1.3 ±0.1 mm
Specified dimension	1.6 mm
Specified dimension	6 mm
Bore dimension	Ø11 H7

Applications

Stated application scenarios include humanoid robots, robotic arms, exoskeletons, quadruped robots, AGV vehicles, and ARU robots. The encoder is also stated to support servo motors, linear motors, DDR (direct-drive rotary) motors, coreless motors, and voice-coil motors.