Technosoft 2021
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iPOS4803-SY Multi Axis System, EtherCAT Technical Reference
3.8.7 Digital Hall Connection for Motor + Hall + Incremental Encoder
Figure 15
Digital Hall connection for iPOS4803-SY
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 iPOS4803-SY are equipped with a feature that detects breakage of Hall wires and/or of
incremental/absolute encoder wires.
3.
The length of the cables must be up to 30m, reducing the exposure to voltage surges in industrial
environment.
1
In case of an absolute encoder connection, if only just one wire is missing from a pair the breakage can’t be detected.
