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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.
 Introduction
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Features
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Principles
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Classifications
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Engineering Data
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Further Information |
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Explanation of Terms
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Troubleshooting |
Related Contents
- Rotary Encoders
Interpreting Engineering DataInterpreting Engineering Data
| Bearing Life | Cable 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. |
Top of pageMounting
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 | Counter | Digital Panel Meter | |||
| Multifunction Counter | Tachometer | Rotary Pulse Indicator | Up/Down Counting Pulse Indicator | Timer Interval Indicator | |
| Model | H7BX-A H7CX-A[]-N | H7BX-AW H7CX-R[]-N H7ER-N | K3HB-R | K3HB-C | K3HB-P |
| Rotary Encoder model | |||||
| E6D-CWZ1E | No | No | No | No | No |
| E6D-CWZ2C | Yes | Yes | Yes | Yes | Yes |
| E6F-CWZ5G | Yes | Yes | Yes | Yes | Yes |
| E6A2-CS3E E6A2-CW3E E6A2-CWZ3E | Yes | Yes | Yes | Yes | Yes |
| E6B2-CWZ3E | |||||
| E6H-CWZ3E | |||||
| E6C2-CWZ3E | |||||
| E6C3-CWZ3EH | |||||
| E6A2-CS3C E6A2-CW3C E6A2-CWZ3C | Yes | Yes | Yes | Yes | Yes |
| E6A2-CS5C E6A2-CW5C | |||||
| E6B2-CWZ6C | |||||
| E6H-CWZ6C | |||||
| E6C2-CWZ6C | |||||
| E6C3-CWZ5GH | |||||
| E6B2-CWZ1X | No | No | No | No | No |
| E6H-CWZ3X | |||||
| E6C2-CWZ1X | |||||
| E6C3-CWZ3XH | |||||
| E6B2-CWZ5B E6C2-CWZ5B | No | No | Yes | No | Yes |
| Peripheral device | Rotary Encoder | Programmable Controller | Machine 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 | |
| Model | E63-WF5C | CJ2M-CPU1[]/ CPU3[] + CJ2M-MD21[] | CJ1W-CT021 CS1W-CT021/041 C200H-CT021 | NX-EC0[][][] | GX-EC02[][] |
| Rotary Encoder model | |||||
| E6D-CWZ1E | No | No | Yes | No | No |
| E6D-CWZ2C | Yes | No | Yes | No | No |
| E6F-CWZ5G | Yes | Yes | Yes | Yes | Yes |
| E6A2-CS3E E6A2-CW3E E6A2-CWZ3E | Yes | No | Yes | No | No |
| E6B2-CWZ3E | |||||
| E6H-CWZ3E | |||||
| E6C2-CWZ3E | |||||
| E6C3-CWZ3EH | |||||
| E6A2-CS3C E6A2-CW3C E6A2-CWZ3C | Yes | Yes | Yes | Yes | Yes |
| E6A2-CS5C E6A2-CW5C | |||||
| E6B2-CWZ6C | |||||
| E6H-CWZ6C | |||||
| E6C2-CWZ6C | |||||
| E6C3-CWZ5GH | |||||
| E6B2-CWZ1X | No | Yes | Yes | Yes | Yes |
| E6H-CWZ3X | |||||
| E6C2-CWZ1X | |||||
| E6C3-CWZ3XH | |||||
| E6B2-CWZ5B E6C2-CWZ5B | No | No | No | No | No |
* Supported by CJ2M CPU Unit with unit version 2.0 or later.
Absolute Encoders
| Peripheral device | Cam Positioner | Programmable Controller | |
| Model | H8PS | CP1H, CP1L, CP1E | DC Input Unit |
| Rotary Encoder model | |||
| E6CP-AG5C | No | Yes | Yes Requires separate power supply for Encoder. |
| E6C3-AG5C | |||
| E6CP-AG5C-C | Yes | No | No |
| E6C3-AG5C-C | |||
| E6F-AG5C-C | |||
| E6F-AB3C | No | Yes | Yes Requires separate power supply for Encoder. |
| E6F-AB3C-C | No | No | No |
Example of Connection with H7BX-AW Self-powered Tachometer
| Example of Applicable Models | E6A2-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 Models | E6A2-CW3E E6C2-CWZ3E, E6C3-CWZ3EH, E6F-CWZ5G |
Example of Connection with K3HB-C Up/Down Counting Meter
NPN Open-collector Outputs
| Example of Applicable Models | E6A2-CS3C, E6A2-CS5C E6A2-CW3C, E6A2-CW5C E6C2-CWZ6C, E6F-CWZ5G |
Voltage Outputs
| Example of Applicable Models | E6A2-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 Models | E6A2-CWZ5C, E6C2-CWZ6C, E6C3-CWZ5GH, E6F-CWZ5G |
| Example of Applicable Models | E6B2-CWZ1X, E6C2-CWZ1X, E6C3-CWZ3XH, E6H-CWZ3X with Line-driver Output |
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