Harmonic Drive LLC | 247 Lynnfield St. Peabody, MA 01960 | 800-921-3332
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Micro Encoder

Super compact incremental encoders.

Catalog

Available in two sizes: the micro model and the ultra-micro model, these high resolution incremental encoders are remarkably compact.

The ultra-micro model

MES-6

  • Dimensions ø7.5 x 10.5mm , Incremental encoder 360 line count
  • Output phases: A, B, Z
  • Square wave open collector output

The micro model

MES-9 (Single shaft)

MEH-9 (Hollow shaft)

  • Dimensions ø13 x 20mm , Incremental encoder 1000 line count
  • Output phases: A, B, Z
  • Square wave open collector output
  • Hollow shaft is also available

Model Ordering Code

ME- X- X- XXX PX
1 2 3 4
1. Shaft shape : S, H**
2. Size : 6, 9
3. Output pulses : 100, 200, 300, 360, 500**, 1000**
4. Output circuit
  • C = Open collector output
  • None = Voltage output ***
** Hollow shaft feature and line counts of 500 and 1000 are only available in size 9
*** Voltage output is only available in size 9.


List of Ratings

Item/model

MES-6- PC

ME 9- P

Power supply

DC5V±10%

DC5V±10%

Current consumption

30mA or less (without load)

40mA or less (without load)

Signal detection code

Incremental

Incremental

Output

Output pulses
(Standard)
[Pulses/evolution]

100 200
300 360

100 200 300
360 500

1000

Output phase

A, B, Z

A, B, Z (Z = "H")

Output signal

Square wave open collector output

Square wave open collector
output , or, voltage output

Output capacity

Sink current: 4mA
(output withstand voltage 7V)
Residual voltage: 0.4V or less

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

Max. response frequency
(response pulses)

100kHz

100kHz

Output phase difference

A and B phase difference
90°±45° (T/4 ±T/8)
Z phase T ±T/2
(see output waveform
diagram)

A and B phase difference
90°±45° (T/4 ±T/8)
Z phase T ±T/2
(see output waveform
diagram)

Waveform rise
and fall time

2μs or less
(output cable 300mm or less)

2μs or less
(output cable 140mm or less)

Starting torque

0.3x10-3N•m
(3gf-cm) or less

1.0x10-3N•m
(10gf-cm) or less

Permissible shaft
load (Electrical)

Radial

1.9N (0.43 lb)

1.9N (0.43 lb)

0.98N (0.22 lb)

Thrust

0.98N (0.22 lb)

1.9N (0.43 lb)

0.98N (0.22 lb)

Permissible Max. revolutions (Mechanical)

6000r/min

6000r/min

Operating temperature/humidity

0°C∼60°C
RH35%∼90%
No condensation

0°C∼60°C
RH35%∼90%
No condensation

Storage temperature

-20°C∼80°C

-20°C∼80°C

Resistance to vibration

Frequency 55Hz,
double amplitude 1.5mm
Withstands 2 hours
each in X, Y and Z directions

Frequency 55Hz,
double amplitude 1.5mm
Withstands 2 hours
each in X, Y and Z directions

Resistance to shock

500m/s2 (about 50G)
Withstands 3 cycles
each in X, Y and Z directions

500m/s2 (about 50G)
Withstands 3 cycles
each in X, Y and Z directions

Cable

Vinyl sheathed (AWG32)
Cable length 300mm

Vinyl sheathed (AWG30)
Cable length 140mm

Mass

5g

10g


Product Drawing

Product Drawing


Output Circuit

Output Circuit


Output Waveform

Output Waveform

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