14 bits/revolution equate to 16,384 steps/revolution or a resolution of 0.022°.
The speed value is calculated using sliding averaging. The 14-bit position value is used as the basis for calculation, and the speed value is determined depending on the gate time, which may lie between 1 ms and 1000 ms. The gate time can be parameterised by the customer and therefore adapted depending on the application. The vehicle speed signal has digits/gate time as its physical unit.
The rotary encoder's Ø 58 design enables its use in a high number of applications such as e.g. various shaft diameters of Ø 6, 10 or 12 mm, with and without flat area, with clamped and synchroniser flange, connector and cable versions as electrical connections, housing made of seawater-resistant aluminium (ALMGSi1) or stainless steel (1.4305 or 1.4401) and moisture protection measures. This means that the rotary encoder can be completely cast, enabling the housing to comply with protection class IP69K.
Of course, customer wishes such as mechanical adaptations, for instance, can also be implemented.
In combination with the development of the TBN58/E1, the multiturn version TRN 58 was also extended on the basis of the 14-bit technology in the single-turn part. We are therefore talking about a rotary encoder with 14 steps/revolution + 12-bit revolutions = 26 bits as a total number of steps. Profile 4.0.2 according to CANopen class 2, CIA DSP406 is integrated in this. CANopen Safety SIL2 is implemented in this rotary encoder. This means that it is designed according to IEC61508 with SIL2 and according to performance level "d" as per DIN EN ISO 13849. In addition to the position value, the speed value is also classified as a safe value. Extensive measures have been implemented to achieve the reliability values, including time behaviour monitoring, voltage level monitoring and CRC validation, amongst others.