FB1.LASTIDENTIFIED

Description

If FB1.SELECT is set to -1, AKD automatically detects the feedback device A process whereby some proportion of the output signal of a system is passed (fed back) to the input. In automation, a device coupled to each motor to provide indication of the motor's shaft angle, for use in commutating the motor and controlling its speed and position. When auto-detection is successful, the identified feedback type is stored in FB1.LASTIDENTIFIED. On the next feedback initialization, the auto-detection algorithm will first look for the last identified type, speeding up feedback initialization and shortening drive boot time.

The time to automatically identify the device is shortened when FB1.LASTIDENTIFIED is already set to the correct feedback type.

Note that this parameter must be saved to non-volatile memory with DRV.NVSAVE in order to take effect each time the drive powers up.

General Information

Type	NV Parameter
Units	N/A
Range	30 (EnDat 2.1),31 (EnDat 2.2), 32 (BiSS "Bi-directional Serial Synchronous interface" An open-source communication protocol for feedback devices. With BiSS, all of the computation for interpolation in regard to position occurs on the ASIC directly in the encoder with Sine Cosine), 33 (HIPERFACE), 41 (SFD), 45 (SFD3)
Default Value	41 (SFD)
Data Type	Integer
Start Version	M_01-10-01-000