The A2 absolute encoder is a non-contacting optical rotary position sensor which reports the shaft angle within a 360 deg. range. As opposed to incremental encoders, the A2 reports the absolute position rather than the change in position. When powered up, it does not require a home cycle, even if the shaft was rotated while the power was off. In multi-turn mode, it tracks the position in a 32-bit counter as long as the power supply is maintained. Internally, an infrared LED flashes through a circular bar code onto a linear array sensor. The microcontroller decodes the image into a unique position. All user programmable parameters such as resolution, origin, direction and mode are permanently stored in an internal EEPROM.
Sleeve bushing or ball bearing versions
12-bit resolution and resolution field programmable from 2 to 4096 codes per revolution (3600 factory default)
Full 360 degrees range, 7 msec update time
Low power drain of 18.5 mA max., and 1.5 mA in sleep mode
Field programmable parameters such as setting zero position point (free demo software provided)
EEPROM stores downloadable parameters
9600 baud default data rate adjustable up to 115K baud
12-bit analog voltage output option (0 to +3.599 volts factory default setting. Field programmable up to 0 to +4.095 volts)
Multi-turn mode (note: power must be maintained to prevent reset to zero)
-25 to 70 degrees C. operating temperature
The A2 absolute encoder is a non-contacting optical rotary position sensor which reports the shaft angle within a 360 deg. range. As opposed to incremental encoders, the A2 reports the absolute position rather than the change in position. When powered up, it does not require a home cycle, even if the shaft was rotated while the power was off. In multi-turn mode, it tracks the position in a 32-bit counter as long as the power supply is maintained. Internally, an infrared LED flashes through a circular bar code onto a linear array sensor. The microcontroller decodes the image into a unique position. All user programmable parameters such as resolution, origin, direction and mode are permanently stored in an internal EEPROM.
- Sleeve bushing or ball bearing versions
- 12-bit resolution and resolution field programmable from 2 to 4096 codes per revolution (3600 factory default)
- Full 360 degrees range, 7 msec update time
- Low power drain of 18.5 mA max., and 1.5 mA in sleep mode
- Field programmable parameters such as setting zero position point (free demo software provided)
- EEPROM stores downloadable parameters
- 9600 baud default data rate adjustable up to 115K baud
- 12-bit analog voltage output option (0 to +3.599 volts factory default setting. Field programmable up to 0 to +4.095 volts)
- Multi-turn mode (note: power must be maintained to prevent reset to zero)
- -25 to 70 degrees C. operating temperature
