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SE-Power FS STO-manual vers. 1.6 en.12.08.2015
4.2.5
Auxiliary supply 24V, 0V [X40]
The servo drive SE-Power FS with safety module SE-Power FS Safety Module STO provides
a 24 V auxiliary supply to [X40]. This can be employed when using the feedback contact
C1/C2 or to supply external, active sensors.
describes the electrical data for the auxiliary supply.
4.2.6
Status display
To display the status of the safety function, the safety module has an LED on its front, see
Section 7.4.1.
The status LED displays the module’s operating state (green = STO inactive, yellow = STO
active). The display corresponds to the state of the feedback contact C1/C2.
4.2.7
DIP switch
Located on the front of the safety module are DIP switches. These switches have no safety
function. The meaning of the individual switches depends on the technology module used for
the fieldbus communication.
The fieldbus communication can be activated/deactivated or a station address can be set, for
example, via the DIP switches.
4.3
Functionalities in the basic SE-Power FS
The following functions in the basic unit SE-Power FS are not certified according to EN
61800-5-2. They are functional supplements and offer additional diagnostics options.
Error messages generated by the safety module, such as exceeding the discrepancy time,
are detected and analysed by the non-safety finite state machine of the servo drive. If
conditions for an error status are detected, an error message is generated. In this case, it
cannot always be guaranteed that power end stage has been safely switched off.
The safety module SE-Power FS Safety Module STO controls only the provisioning of the
driver supply for the servo drive SE-Power FS. Although input voltage levels are monitored
area by area, the safety module does not have its own error analysis function and is unable
to display errors.
Note
When error messages are acknowledged, all acknowledgeable errors regarding
functional safety are also always acknowledged
Section 7.4.2
