2 Channels magnetic incremental encoder.
Specification at 25℃
| Encoder ETD12-2C | Encoder ETD12-2D | Encoder ETD12-2E | ||||
|---|---|---|---|---|---|---|
| 1 | Sensor |
Optical | ||||
| 2 | Encoder Type |
Incremental | ||||
| 3 | Output Signal |
CMOS/TTL compatible | ||||
| 4 | Number of Channels |
2(3ch as option) | channel | |||
| 5 | Resolution (Max. speed = 50,000 rpm) |
128 | 256 | 512 | pulse/rev | |
| 6 | Max. Frequency Response |
55 | 110 | 220 | kHz | |
| 7 | Supply Voltage, Vcc |
4.5. . .5.5 | V | |||
| 8 | Supply Current, typical |
20 | mA | |||
| 9 | Output Voltage “H” |
≧2.4（Max.Vcc） | V | |||
| 10 | Output Voltage “L” |
≦0.4 | V | |||
| 11 | Output current per channel |
1.5 | mA | |||
| 12 | Rise and fall time (RL=2.7kΩ and CL=25pF) |
Tr=100, Tf=100 | ns | |||
| 13 | Inertia |
TBD | gmm2 | |||
| 14 | Operating Temperature |
-20. . .+85 | ℃ | |||
| 15 | Storage Temperature |
-20. . .+85 | ℃ | |||
Output signal (at motor shaft clockwise rotation)
Output signal information
| Cycle C | 360 | °e |
| Pulse P | 180 | °e |
| Ato B channel phase shift, φ | 90±45 | °e |
| Logic state width, S | 90±45 | °e |
*Max error ( ±°e) indicated above.
Electrical connections
| #1 | (Motor+) | (Motor ＋) |
| ＃2 | Vcc | DC4.5...5.5V |
| #3 | Ch.A | CMOS TTL compatible |
| #4 | Ch.B | CMOS/TTL compatible |
| #5 | ― | NC ( 3ch as option Ch.Z) |
| #6 | GND | |
| #7 | (Motor-) | (Motor -) |
