Technosoft 2019 30 iPOS360x VX-CAN/CAT Technical Reference
3.7.7.3 Digital Hall Connection for Motor + Hall + Incremental Encoder
Figure 3.24. Digital Hall connection
Remarks:
1. This connection is required when using Hall start method BLDC or PMSM and also for the Trapezoidal
commutation method. The digital halls are not used in this case as a feedback measurement device. The actual
motor control is done with an incremental encoder.
2. The length of the cables must be up to 30m, reducing the exposure to voltage surges in industrial environment.
3.7.7.4 Digital Hall Connection for direct motor control without an encoder
Figure 3.25. Digital Hall connection
Remarks:
1. This connection is required when using only Digital hall signals as the main feedback device for motor control.
In this case, no incremental encoder is needed.
2. Do not connect unterminated wires. They might pick up unwanted noise and give false encoder readings.
3. The length of the cables must be up to 30m, reducing the exposure to voltage surges in industrial environment.
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