MICROENCODER

MGH series■ Outside dimensions［Square Wave/Incremental］■ Assembling image of MGH series
MGH-20, 30

MGH-20Can be easily attached to DC motors, AC motors, and stepping motors.
３２５１２■ Speciﬁcations
MGH−20−
Pulse number

Item

２４φ３０

●C＝open collector output●E＝line driver output

３５３０

２１１１．
５

φ４２

１０

φ４４

φ１６１６

Square wave

２2.②Turn the shaft 90º right orleft and ﬁx the other screw.

２５７．
Ｒ１Ｒ２０．
７５３５゜

Sink current：20mA
Sink current：20mAResidual voltage：0.5V or less（at 10mA） Residual voltage：0.5V or less（at 10mA）
0.5

Maximum response frequency（response pulse number）

９０°

100kHzOutput phase
diﬀerence

A, B phase diﬀerence 90°±45°（T/4±T/8）
Z phase T±T/2

Waveform rise/fall time
Maximum allowable revolutions（mechanical）

2μs or less（cable of 1m or less）

Working ambient temperature/humidity

−10°
C〜70°
C
RH35％〜90％ no dewing

Storing ambient temperature

−20°
C〜80°
C

Note: Evenly tighten the screws in 2. ① and 2. ②

２−Ｍ２ ９０°arrangement

Note: Recommended tightening torque: 0.18 N・m
φB＝φ8mm（Standard）＝φ6.35mm＝φ5mm

3. Affix encoder to base of rotating axle.
Note: Recommended tightening torque: 0.18 N・m

6,000r/min■ Output circuit diagram
Voltage output（standard type）

Vibration resistance

Cable color

Cable

60g

MassPower（red）

2.2kΩ A, B, Z
（white, green, yellow）
20m A maximum
0V（black）（shield）

Main circuit

Main circuit

Outside diameter φ4.2
（φ6,8）8-core（19-core）
vinyl wire
AWG 28 Insulated shield cable length 1m（length 0.5m）

Cable color

Cable color

Power（red）

250G）
Durability 500m/s（about
3 times each in X, Y, and Z directions

Impact resistanceLine driver output（option）

Main circuit

Durability 55Hz, double amplitude 1.5mm
2 hours each in X, Y, and Z directions■ Output waveforms

Open collector output（option）

Main body—shield no connection

A, B, Z
（white, green, yellow）
20mA maximum
0V（black）（shield）

26C31

CW rotation as seen fromﬁtting surface

＋5VDC
（red）
A, B, Z
（white, green, yellow）−−−
A, B, Z（white/black,green/black, yellow/black）■ Fitting shaft dimensions
MGH-2015〜16

φC−0.004−0.012

OutputA, B, Z phase

Output form

３８２４＋０φB＋０．
０1５

1,000
1,024
1,200
1,500
1,800
2,000

400
450
500
512
600
720
800
900

40
50
60
100
200
250
300
360

1,000
1,024
1,200

１６300
360
400
500
512
600
800

2.①Search for a screw byturning the rotating shaft
and ﬁx it.

MGH-30

Incremental
40
50
60
100
125
200
250

Output phase

Output capacity

Output circuit●No entry＝voltage output

60mA or less（under no load）

Detection system〔Pulse number/rotation〕

0.89mm hexagon wrench（included）
1.5mm hexagon wrench

DC5V±10％

Current consumption（Standard）●Tools to be used

２−Ｍ２ ９０°arrangement

Pulse number

Output circuit●No entry＝voltage output●C＝open collector output●E＝line driver output

Hexagon socket
head bolt
M2×5（included）

８９０．
５ １．
５８
１４．
５

MGH−30−

Supply voltage

Output pulse number

１５２０
φ１２
φ5＋０＋０．
０12＝２６ＰＣＤ

φ4.2

７５
Ｒ１１．

．２５
Ｒ１４MGH-20, MGH-30

９８φ３２１２５Type name

1.Fix the encoder to the base of rotating shaft.

２２．
５９６E

2‐M2 depth 50V（black）（shield）

Main body—shield no connection

Main body—shield no connection

Note: If the transmission distance islong, it should be so considered that thespecified voltage occurs at the input
portion of the encoder cable end.

150g

26±0.20.05 E

A capacitor（0.1μF）
is connected between 0V and FG（frame ground）.

MGH−20

Pulse number

100〜200

250〜600

800〜1,200■ Output waveform（Square wave）

MGH−30

Pulse number

100〜300

360〜1,024

1,200〜2,000

CW rotation（CW rotation as seen from ﬁt surface）

Allowableeccentricity

RadialThrust±0.02mm±0.1mm±0.01mm±0.05mm±0.02mm

MGH-30

CCW rotation（CCW rotation as seen from ﬁt surface）

TH
A phase LTH
A phase LHH

B phase L

B phase LT T
̶ ±̶（90°±45°）4 8HZ phase L

T
T/4±T/8
A phase̶
A phase17min

φD−0.004−0.012■ Allowable change amount of ﬁtting shaft

F2‐M3 depth 5

B phase̶B phase

T T
̶ ±̶（90°±45°）
4 8Z phase
̶Z phase

T±T/2

0.05 F38±0.2HZ phase L
T±T/2

T±T/2

＊The position of Z phase against A, B phase is not speciﬁed.

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