Rotary Encoder Selection Guide

Incremental Rotary Encoders

Absolute Rotary Encoders

Other Rotary Encoders

Classification

Item          Model

Incremental Encoders

E6A2-C

E6B2-C

E6C2-C

E6C3-C

E6D-C

E6F-C

E6H-C

Appearance

25 dia. x 29 mm

Shaft diameter: 4 dia.

40 dia. x 39 mm

Shaft diameter: 6 dia.

E6C2-C:

50 dia. x 40 mm

Shaft diameter: 6 dia.

E6C3-C:

50 dia. x 38 mm

Shaft diameter: 8 dia.

55 dia. x 50 mm

Shaft diameter: 6 dia.

60 dia. x 60 mm

Shaft diameter: 10 dia.

40 dia. x 26 mm

Inside diameter: 8 dia.

Features

• 25 dia., miniature,

low cost

• Low and medium

resolution

• 40 dia., general

purpose

• Low and medium

resolution

• Line driver output

• Degree of protection:

IP64f (drip-proof,

oil-resistant)

• Output types: NPN,

PNP, line driver

• Shaft withstands

heavy loads

• 55 dia., high resolution:

6,000 pulses

max.

• Solid model with strong shaft

• Hollow shaft eliminates

the need for

coupling

• Slim: 26 mm thick

• Line driver output

Resolution (pulses/

revolution) 

10 to 500

10 to 2,000

PNP open collector

output: 100 to 2,000

E6C2-C:

10 to 2,000

E6C3-C:

100 to 3,600

720 to 6,000 

100 to 1,000

300 to 3,600

Output phases 

A; A and B; or

A, B, and Z

A, B, and Z or

A, A, B, B, Z, and Z

A, B, and Z

A, B, and Z

A, B, and Z or

A, A, B, B, Z, and Z

Phase difference on output 

--- 

90°±45° 

90°±25° 

90°±45° 

90°±45°

Maximum response frequency 

30 kHz 

50 kHz, 100 kHz

E6C2-C:

50 kHz, 100 kHz

E6C3-C:

125 kHz 

200 kHz 

83 kHz 

100 kHz

Maximum permissible rotation 

5,000 r/min 

6,000 r/min

E6C2-C:

6,000 r/min

E6C3-C:

5,000 r/min

12,000 r/min 

5,000 r/min 

10,000 r/min

Power supply voltage

5 to 12 VDC,

12 to 24 VDC

5 VDC,

5 to 12 VDC,

5 to 24 VDC,

12 to 24 VDC

E6C2-C:

5 to 24 VDC, 12 to 24 VDC, 5 to 12 VDC, 5 VDC

E6C3-C:

12 to 24 VDC, 5 to 12 VDC

5 VDC, 12 VDC 

12 to 24 VDC 

5 to 12 VDC,

5 to 24 VDC

Current consumption

20 to 50 mA max.

70 to 130 mA max.

150 mA max.

100 mA max.

80 to 100 mA max.

Output capacity

20 mA

(voltage output)

30 mA

(open collector output)

20 mA

(voltage output)

35 mA

(NPN/PNP open collector output and line driver output)

E6C2-C:

20 mA (voltage

output)

35 mA (NPN/PNP

open collector output)

Conformance to

RS-422A (line

driver output)

E6C3-C:

30 mA (complimentary

output)

35 mA (voltage

output)

Conformance to

RS-422A (line

driver output)

35 mA

(voltage output and open collector output)

30 mA

(complimentary output)

30 mA

(voltage output)

35 mA

(open collector output)

Conformance to RS-422A (line driver output)

Shaft loading

Radial

10 N 

30 N 

50 N, 80 N

49 N

(19.6 N with accuracy ensured)

120 N 

30 N

Thrust

5 N

20 N

30 N, 50 N

29.4 N

(9.8 N with accuracy ensured)

50 N

5 N

Starting torque 

1 mN•m max. 

0.98 mN•m max. 

10 mN•m max. 

9.8 mN•m max. 

10 mN•m max. 

1.5 mN•m max.

Degree of protection 

IEC IP50

E6C2-C:

IEC IP64

(JEM IP64t for drip and oil resistance)

E6C3-C:

IEC IP65

(JEM IP65f for drip and oil resistance)

IEC IP50

IEC IP65

(JEM IP65f for drip resistance and oil resistance)

IEC IP50

Ambient operating

temperature

-10 to 55 °C

(with no icing)

-10 to 70 °C (with no icing)

Coupling

E69-C04B provided

E69-C06B provided

Sold separately

E69-C06B provided 

Sold separately

---

Classification

Item                                 Model

Absolute Encoders

E6CP-A

E6C2-A

E6C3-A

E6F-A

Appearance

50 dia. x 50 mm
Shaft diameter: 6 dia.

50 dia. x 38 mm
Shaft diameter: 8 dia.

60 dia. x 60 mm
Shaft diameter: 10 dia.

Features

• Resolution: 256; gray code output
• Plastic, low cost

• Degree of protection: IP64f (drip and oil resistance)
• Shaft twice as strong as conventional shafts
• Space-saving dimensions
• NPN/PNP output

• Solid model with strong shaft

Resolution (pulses/

revolution) 

256 

6 to 1,024 

256, 360, 720, 1024

Output code 

Gray code 

Gray code, BCD, binary 

Gray code, BCD

Accuracy 

± 1° max

--- 

--- 

Maximum response frequency 

5 kHz

10 kHz, 20 kHz

10 kHz / 20 kHz

Maximum permissible rotation 

1,000 r/min

5,000 r/min

5,000 r/min 

Power supply voltage

5 to 12 VDC, 12 to 24 VDC

12 to 24 VDC

5 to 12 VDC, 12 to 24 VDC

Current consumption

70 / 90 mA max.

70 / 80 mA max.

60 mA max.

Output capacity

16 mA
(open collector output)

Sinking current: 35 mA max.
Applied voltage: 30 VDC max.
(NPN open collector output)

35 mA
(open collector output)

Shaft loading

Radial

30 N 

80 N

120 N

Thrust

20 N

50 N

50 N

Starting torque 

0.98 mN•m max. 

9.8 mN•m max. 

9.8 mN•m max. 

Degree of protection 

IEC IP50

IEC IP64 (JEM IP64f for drip and oil resistance)

IEC IP65

(JEM IP65f for drip

resistance and oil resistance)

Ambient operating

temperature

-10 to 55 °C (with no icing)

-10 to 70 °C (with no icing)

-10 to 70 °C (with no icing)

Coupling 

E69-C06B is provided with E6CP-AG3C/-AG5C. Purchase coupling separately if E6CP-AG5C-C is used.

Sold separately 

Provided with pre-wired models. Purchase separately for other models.

Classification

Item                                 Model

Direction Discrimination Unit

E63-WF

Appearance

75 x 22.5 x 80 mm (H x W x D)

Features

• Provides discrimination output for rotation direction in response to phase-difference signals from Rotary Encoder.
• Response frequency of 120 kHz ensures high-speed responses.
• DIN track mounting is possible, and thin body ensures efficient mounting.