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Rotary encoders RMS20

●To buy this product, please go to the following Online Web stores.
To the Rotary encoders  “RMS20 series” page on the DigiKey online shop
To the Rotary encoders“RMS20 series” page on the RS components online shop
To the Rotary encoders “RMS20 series” page on the Chip1stop online shop
To the Rotary encoders “RMS20 series” page on the Mouser online shop

250P/R, 256P/R so easy setting

  • High resolution of 256 P/R and fine setting
  • Lower consumption of electric power (15 mA maximum) due to magnetic method
  • Long life for 105 times continuous run due to contactless & magnetic method
  • Square wave output (with Amp.)
  • Smooth rotation for setting
  • RoHS compliant

PART NUMBER DESIGNATION

RMS20 -250-201-1

Series name

Resolution (P/R)

100, 250, 256

Output phase

2:“A” & “B”

 

 

Output connection

1:Cable wire

LIST OF PART NUMBERS

Part numberResolutionInput voltage
RMS20-100-201-1 100 (P/R) 5 V
RMS20-250-201-1 250 (P/R)
RMS20-256-201-1 256 (P/R)

Electrical characteristics

Input voltage DC5 V ± 5 %
Input current 15 mA maximum (No load)
Output wave form Square wave
Output phases A, B
Resolution (P/R) 100 250 256
Phase difference of outputs A & B 90° ± 45°
Maximum frequency response 5 kHz
Output signal“1 (High)” + 4.5 V minimum
“0 (Low)” + 0.5 V maximum
Sensor Magnetoresistive element

Mechanical characteristics

Rotational torque 4.90 mN·m {50 gf·cm} maximum
Inertia 3 g·cmmaximum
Shaft loading
(When mounting)

Radial 9.81 N {1 kgf} maximum
Axial 9.81 N {1 kgf} maximum
Rotational life 10revolution
Net weight Approx. 20 g
Strength of tighten screw 0.49 N·m {5 kgf·cm} maximum

Environmental characteristics

Operating temp. range − 10 ~ 60 °C
Storage temp. range − 40 ~ 70 °C
Protection grade IP40

RELIABILITY TEST

◆The output shall satisfy the criteria below after the following tests.

Test itemTest conditions
VibrationPower OFF Amplitude : 1.52 mm or 98.1m/s2 (10 G) whichever is smaller.
10 ~ 500 Hz excursion 15 min/cycle, 8 cycles each for X, Y, Z, directions.
ShockPower OFF 3 times each in directions (X, Z) at 490 m/s2 (50 G), 11 ms.
High temperature
exposure
Power OFF 70 °C  96 h (To be measured after leaving samples for 1 h at normal temperature and
humidity after the test.)
Power ON 60 °C  96 h
Low temperature
exposure
Power OFF − 40 °C  96 h
HumidityPower OFF 40 °C   Relative humidity  90 〜 95 %   96 h(To be measured after wiping out moisture and leaving samples for 1 h at normal temperature and humidity after the test.)
Thermal shockPower OFF To be done 10 cycles with the following condition
(To be measured after leaving samples for 1 h at normal temperature and humidity after the test.)
70 °C 0.5 h、− 40 °C 0.5 h

OUTLINE DIMENSIONS

Unless otherwise specified, tolerance: ± 0.4 (Unit: mm)

OUTPUT

ELECTRICAL WIRING

OUTPUT CIRCUIT

KNOB FOR SETTING ENCODERS

※The knobs are sold separately as an optional item.
   You can choose gray or black color.The hexagon socket head screws are attached. (3 pieces)

●The above contents and descriptions are subject to change without notice. 

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