Beckhoff AX8911, Документация

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Safe Motion functions
AX8911 36 Version: 1.2.0
7.2 Feedback system requirements
Requirements when using the SICK EDS35/EDM35 OCT encoder
WARNING
Requirements
The requirements arising from the use of the SICK EDS35/EDM35 encoder are listed in the table below.
They must be taken into account by the user or machine manufacturer.
Name Description
Service Mode It is not allowed to operate the feedback system in Access Level 4 ("Service")
when using a safe absolute position.
Servomotor applications Currently, only applications on a servomotor basis may be implemented with
this feedback system. Operation with a frequency converter is not permissible.
Safe resolution The data type of the SingleTurn Position is a UDINT with a length of 32 bits.
The maximum resolution of the encoder with 24 bits is entered left aligned in
the variables. Only the top 13 bits of this single-turn position are robust in terms
of safety (see Safety parameters).
Encoder functions If functions of the encoder such as Set Position (101h) or Factory Settings
(108h) are executed, this will be detected by the AX8911 and an error
displayed. A subsequent start is possible only after an update and download of
the safety parameters.
Requirements for the use of a safe EnDat2.2 encoder
WARNING
Requirements
The requirements arising from the use of an EnDat2.2 safety encoder are listed in the following table. They
must be taken into account by the user or machine manufacturer.