The HD25A is a rugged absolute encoder designed for heavy duty industrial use. This absolute encoder is a non-contacting optical rotary position sensor which reports the shaft angle within a 360 range. The HD25A can be used for automation, motion control and robotic applications. As opposed to incremental encoders, the HD25A reports the absolute position rather than just the change in position. The HD25A is a true absolute encoder over one revolution, and also has a multi-turn mode. 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.
NEMA size 25 package
Anodized milled aluminum housing with O-ring housing seal
3/8" diameter shaft
Up to 15 devices on a single 6-pin telephone-type cable
12-bit accuracy
7 milliseconds update time
EEPROM stores downloadable parameters
Field programmable resolution (2 to 4096 CPR)
Remotely updatable firmware
The HD25A is a rugged absolute encoder designed for heavy duty industrial use. This absolute encoder is a non-contacting optical rotary position sensor which reports the shaft angle within a 360 range. The HD25A can be used for automation, motion control and robotic applications. As opposed to incremental encoders, the HD25A reports the absolute position rather than just the change in position. The HD25A is a true absolute encoder over one revolution, and also has a multi-turn mode. 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.
- NEMA size 25 package
- Anodized milled aluminum housing with O-ring housing seal
- 3/8" diameter shaft
- Up to 15 devices on a single 6-pin telephone-type cable
- 12-bit accuracy
- 7 milliseconds update time
- EEPROM stores downloadable parameters
- Field programmable resolution (2 to 4096 CPR)
- Remotely updatable firmware
