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11/21/2019 TR - ECE - BA - GB - 0139 - 02 Page 21 of 154
3.5 Incremental interface / SIN/COS interface (optional)
In addition to the PROFINET IO interface for outputting the absolute position, the measuring system
can be equipped with an additional incremental interface.
Alternatively, this interface can also be designed as a SIN/COS interface.
This additional interface is not evaluated in relation to safety and may not
be used for safety instrumented purposes!
In motor control applications, the interface is generally used as position
feedback.
In the event of overvoltage, caused by a missing ground reference point,
there is a danger of damage to the downstream electronic devices!
If the ground reference point is completely missing, e.g., 0 V of the power
supply are not connected, voltages equal to the supply voltage can occur
at the outputs of this interface.
Ensure that a ground reference point is present at all times,
or the organization responsible for the system must provide
appropriate protective measures for downstream electronic devices.
The signal characteristics of the two possible interfaces are shown below.
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