ZeroErr eCoder20 RS485 Absolute Magnetic Encoder, 17/19-Bit Single- and Multi-Turn

ZeroErr

$259.00 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)

Anzahl

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Overview

The ZeroErr eCoder20 is an axial-reading absolute magnetic encoder with RS485 single-turn and multiple-turn versions. Selectable resolutions are 17-bit and 19-bit. The encoder uses a 20 mm through-hole and an 8-pin connection; maximum speed for eCoder20 is stated as 12,000 RPM.

Features

Maximum absolute tolerance: <0.06°; hysteresis: less than one unit of resolution.
20 mm through-hole for passing mechanical structures, cables, air lines, and similar items.
90° M2.5 setscrew mounting with a specified Φ20 mm mounting opening.
Compact structure designed for assembly and disassembly; assembly tolerance up to 0.1 mm.
Programmable zero position stored in internal EEPROM.
Provides a precision positioning reference for fast, accurate installation.
RS-485 interface protocol, stated as compatible with Tamagawa absolute encoders.
Stated compatibility with servo, linear, DDR (direct-drive rotary), coreless, and voice-coil motors.

Options

Selection	Available choices
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)

19-bit multiple-turn version: stated to provide up to 19-bit resolution, 240 counting revolutions, programmable and storable point-by-point position compensation, and ±10 arcseconds repeatability. The multiple-turn version is described as a non-contact, multi-turn absolute type.

Specifications

Operating and electrical specifications

Parameter	Value
Model	eCoder20
Maximum absolute tolerance	<0.06°
Repeatability	±10 arcseconds
Reading type	Axial reading
Resolution	17 bit to 21 bit and 16 bit multiturn counter option
Maximum speed	12,000 RPM (eCoder11, eCoder18, eCoder20); 6,000 RPM (eCoder35, eCoder45, eCoder65, eCoder35H)
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

eCoder20 dimensions and component data

Parameter	eCoder20
Magnetic ring inner diameter	20 mm
Magnetic ring outer diameter	33.5 mm
Magnetic ring weight	9.2 g
Magnetic ring thickness	6.4 mm
Readhead inner diameter	22 mm
Readhead outer diameter	34 mm
Readhead weight	3.6 g
Readhead maximum thickness	6 mm
Readhead arc length	360°
Maximum resolution	19 bits
Maximum thickness (feature panel)	12.8 mm

Installation drawing callouts

Callout	Value
Diameters	Φ33.5, Φ27, Φ22, Φ20
Linear dimensions	37.5, 34, 30.5, 20.5, 19.2, 16.5, 15, 12.9, 4.75
Toleranced dimension	4 ±0.2
Holes	Two Φ2.1 holes
Angle	90°

Applications

The eCoder20 is stated to remain applicable in dusty, heavy-oil-contamination, high- and low-temperature, and complex electromagnetic environments, with reliable operation in harsh environments.