OPTICAL ENCODERS
RE12
RoHS compliant
■
FEATURES
O
φ
12 mm, High resolution up to 300 P/R
O
Cost effective
O
Two bearing types to choose from;
Sleeve bearing or ball bearing
O
Low torque, low inertia
O
RoHS compliant
■
PART NUMBER DESIGNATION
RE12 A – 100 – 100 – 1
Series name
Output connection
Bearing
A：
Ball bearing
C：
Sleeve bearing
1：
Cable wire
Resolution (P/R)
100, 200, 300
Output phase “A”, Input voltage : 5 V, No AMP
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LIST OF PART NUMBERS
Bearing
Ball Bearing
Resolution
100 P/R
200 P/R
300 P/R
100 P/R
Part number
RE12A-100-100-1
RE12A-200-100-1
RE12A-300-100-1
RE12C-100-100-1
RE12C-200-100-1
RE12C-300-100-1
Sleeve Bearing
200 P/R
300 P/R
※
Verify the above part numbers when placing orders.
RE12
OPTICAL ENCODERS
■
STANDARD SPECIFICATIONS
O
ELECTRICAL CHARACTERISTICS
Resolution
Item
Photo-sensor maximum current
Output wave form
Output signal
Output signal
amplitude variation
Light source
50 mA maximum (at 25 °C)
Quasi-sinusoidal
O
Mechanical characteristics
Starting
torque
Inertia
Shaft
loading
Net weight
Radial
Axial
Ball bearing
Sleeve bearing
0.05 mN·m {0.5 gf·cm} maximum
0.4 mN·m {4 gf·cm} maximum
0.01 g·cm
2
maximum
1.96 N {200 gf} maximum
4.9 N {500 gf} maximum
Approx. 10 g
※1
※2
150 mVp-p minimum
40 % maximum
LED
100 mVp-p minimum
50 % maximum
O
Output signal level & Amplitude variation
※1
:
Measured at CP1 as per the Fig. A of ‘MEASUREMENT CIRCUIT’
on the following page. (3 kHz)
※2
:
Measured at CP2 as per the Fig. A of ‘MEASUREMENT CIRCUIT’
on the following page. (3 kHz)
S min S max
O
Environmental characteristics
Operating temp. range
Storage temp.range
Protection grade
−10
~ 50 °C
−20
~ 80 °C
IP40
※
Output signal level
：
100, 200 P/R Smin
≧
0.15 V,
300 P/R Smin
≧
0.10 V
Amplitude variation
：
100, 200 P/R (Smax/Smin-1)
×
100
≦
40 %
300 P/R
(Smax/Smin-1)
×
100
≦
50 %
■
RELIABILITY TEST
The output shall satisfy the criteria below after the following tests.
Test item
Vibration
Shock
High temperature
exposure
Low temperature
exposure
Humidity
Thermal shock
Power OFF
Power OFF
Power OFF
Power ON
Power OFF
Power ON
Power OFF
Power OFF
Test conditions
Amplitude : 1.52 mm or 98.1 m/s
2
(10 G) whichever is smaller.
10 ~ 500 Hz excursion 5 min/cycle, 1 hour each for X, Y, Z, directions.
1 time each in 6 directions (X, Y, Z) at 490 m/s
2
(50 G), 11 ms.
80 °C 96 h
50 °C 96 h
−
20 °C 96 h
−
10 °C 96 h
(To be measured after leaving samples for 1 h at normal temperature and
humidity after the test.)
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.)
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.)
80
°C 1
h、− 20
°C 1
h
O
Criteria
300 P/R
Output signal level
Amplitude variation
S min
≧
0.13 V
(S max / S min – 1)
×
100
≦
45 %
S min
≧
0.08 V
(S max / S min – 1)
×
100
≦
55 %
Measurement point
CP1 in ‘MEASUREMENT CIRCUIT’
CP2 in ‘MEASUREMENT CIRCUIT’
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