Posital has harmonised its range of Optocode type absolute optical encoders featuring a CANopen interface, making the choice of a product considerably easier for users. The new CA encoder series retains the proven features of its predecessors with a range of new options, such as speed and acceleration outputs and eight software programmable cams. Moreover, all single-turn models without a connection cap now also feature a boot-loader which facilitates remote maintenance and allows users to execute software updates and update device profiles via the CANbus.
Users can also configure the new devices via layer setting service (LSS), which makes it possible to retroactively assign node numbers and baud rates via software. The encoders now come with a storage capacity for four objects which can be used to temporarily store process data.
In all models, node number and baud rate (20 kBaud to 1 MBaud) can be easily adjusted via SDO telegrams. Additionally, preset value, resolution and limit switch parameters can be configured via the CANbus and stored in the non-volatile EEPROM.
The new CANopen models use an optoelectronic scanning method to record position values. The single-turn part provides a resolution of 16 bit per revolution. Multiturn units register a maximum of 16 384 revolutions (14 bit), thereby covering an overall measuring range of 30 bit. The encoders are available as hollow or solid shaft versions with an optional connection cap which features a switchable terminating resistor, an integrated T-coupler, diagnostic LEDs and BCD switches which allow users to manually adjust the baud rate. IP66/67 protected heavy duty models are available for use in rugged environments.
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