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Rotary Encoders

Rotary Encoders measure the number of rotations, the rotational angle, and the rotational position. Linear Encoders are also available to measure linear movement.

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Primary Contents



Interpreting Engineering Data

Bearing LifeCable Extension Characteristics
E6B2-C
E6B2-CWZ6C

Measurement Example
Power supply voltage: 5 VDC
Load resistance: 1 kΩ (Output residual voltage is measured
at a 35 mA load current.)
Cable: Special Cable
・ This graph shows the relationship between mechanical
life and the load applied to the shaft.
・ The size of the load during rotation affects the life of
the bearings.
・ This graph shows the effect of the output waveform if the
cable is extended.
・ Extending the cable length not only changes the startup
time, but also increases the output residual voltage.

Mounting

To mount the Rotary Encoder directly, secure it with screws from direction A. If a servo mount is used, attach a Flange to the Rotary Encoder and mount the Rotary Encoder from direction B.

Example: Attaching an E69-FCA02 Flange to the E6C2-C

Example of Connection

Peripheral Device Connectability

Yes: Connection possible. No: Connection not possible.

Incremental Encoders

Peripheral
device
CounterDigital Panel Meter
Multifunction
Counter
TachometerRotary Pulse
Indicator
Up/Down Counting
Pulse Indicator
Timer Interval
Indicator
ModelH7BX-A
H7CX-A[]-N
H7BX-AW
H7CX-R[]-N
H7ER-N
K3HB-RK3HB-CK3HB-P
Rotary Encoder
model
E6D-CWZ1ENoNoNoNoNo
E6D-CWZ2CYesYesYesYesYes
E6F-CWZ5GYesYesYesYesYes
E6A2-CS3E
E6A2-CW3E
E6A2-CWZ3E
YesYesYesYesYes
E6B2-CWZ3E
E6H-CWZ3E
E6C2-CWZ3E
E6C3-CWZ3EH
E6A2-CS3C
E6A2-CW3C
E6A2-CWZ3C
YesYesYesYesYes
E6A2-CS5C
E6A2-CW5C
E6B2-CWZ6C
E6H-CWZ6C
E6C2-CWZ6C
E6C3-CWZ5GH
E6B2-CWZ1XNoNoNoNoNo
E6H-CWZ3X
E6C2-CWZ1X
E6C3-CWZ3XH
E6B2-CWZ5B
E6C2-CWZ5B
NoNoYesNoYes
Peripheral
device
Rotary
Encoder
Programmable ControllerMachine
Automation
Controller
Network
Device
Direct
Discrimination
Unit
CJ2M CPU Unit,
Pulse I/O
Module*
High-speed
Counter
Unit
NX-series
Incremental
Encoder
Input Unit
EtherCAT
Encoder
Input
Terminal
ModelE63-WF5CCJ2M-CPU1[]/
CPU3[]
+
CJ2M-MD21[]
CJ1W-CT021
CS1W-CT021/041
C200H-CT021
NX-EC0[][][]GX-EC02[][]
Rotary
Encoder
model
E6D-CWZ1ENoNoYesNoNo
E6D-CWZ2CYesNoYesNoNo
E6F-CWZ5GYesYesYesYesYes
E6A2-CS3E
E6A2-CW3E
E6A2-CWZ3E
YesNoYesNoNo
E6B2-CWZ3E
E6H-CWZ3E
E6C2-CWZ3E
E6C3-CWZ3EH
E6A2-CS3C
E6A2-CW3C
E6A2-CWZ3C
YesYesYesYesYes
E6A2-CS5C
E6A2-CW5C
E6B2-CWZ6C
E6H-CWZ6C
E6C2-CWZ6C
E6C3-CWZ5GH
E6B2-CWZ1XNoYesYesYesYes
E6H-CWZ3X
E6C2-CWZ1X
E6C3-CWZ3XH
E6B2-CWZ5B
E6C2-CWZ5B
NoNoNoNoNo

* Supported by CJ2M CPU Unit with unit version 2.0 or later.

Absolute Encoders

Peripheral deviceCam PositionerProgrammable Controller
ModelH8PSCP1H, CP1L, CP1EDC Input Unit
Rotary Encoder model
E6CP-AG5CNoYesYes
Requires separate power supply for Encoder.
E6C3-AG5C
E6CP-AG5C-CYesNoNo
E6C3-AG5C-C
E6F-AG5C-C
E6F-AB3CNoYesYes
Requires separate power supply for Encoder.
E6F-AB3C-CNoNoNo

Example of Connection with H7BX-AW Self-powered Tachometer

Example of Applicable ModelsE6A2-CS3E 10P/R, 60P/R
E6C2-CWZ3E, E6F-CWZ5G 600P/R
E6C3-CWZ3EH 10P/R, 60P/R, 600P/R

Example of Connection with H7BX-A Digital Counter

Example of Applicable ModelsE6A2-CW3E
E6C2-CWZ3E, E6C3-CWZ3EH, E6F-CWZ5G

Example of Connection with K3HB-C Up/Down Counting Meter

NPN Open-collector Outputs

Example of Applicable ModelsE6A2-CS3C, E6A2-CS5C
E6A2-CW3C, E6A2-CW5C
E6C2-CWZ6C, E6F-CWZ5G

Voltage Outputs

Example of Applicable ModelsE6A2-CS3E, E6A2-CW3E
E6C2-CWZ3E

Example of Connection with CJ1W-CT021 High-speed Counter Unit in Programmable Controller

Example of Applicable Models (1)E6A2-C, E6B2-C, E6C2-C, E6H-C
E6F-CWZ5G, E6D (open-collector output)

Encoder with NPN Open-collector Output (5/12/24 VDC)

Note:
Connections are as follows if the Encoder power supply is 5 V or 24 V.
Phase A + 5-V power supply → A19, 24 V → B20
Phase B + 5-V power supply → A17, 24 V → B18

Example of Applicable Models (2)E6B2-CWZ5B
E6C2-CWZ5B, E6C3-CWZ5GH

Encoder with PNP Open-collector Output (5/12/24 VDC)

Note:
Connections are as follows if the Encoder power supply is 5 V or 24 V.
Phase A + 5-V power supply → A19, 24 V → B20
Phase B + 5-V power supply → A17, 24 V → B18

Example of Applicable Models (3)E6B2-CWZ1X, E6C2-CWZ1X
E6C3-CWZ3XH, E6H-CWZ3X

Encoder with Line-driver Output (RS-422)

Example of Connection with CJ2M-CPU1[]/CPU3[] + CJ2M-MD21[] Pulse I/O Module

Example of Applicable ModelsE6A2-CWZ5C, E6C2-CWZ6C, E6C3-CWZ5GH, E6F-CWZ5G

Example of Applicable ModelsE6B2-CWZ1X, E6C2-CWZ1X, E6C3-CWZ3XH, E6H-CWZ3X with Line-driver Output