SE-Power FS STO-manual vers. 1.6 en.12.08.2015
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Plug
Pin Designation
Value
Description
8
0V
0 V
Reference potential for auxiliary power supply.
7
24V
+24 V DC Auxiliary power supply (24 V DC logic supply of
the servo drive carried out).
6
C2
–
Feedback contact
for the status “STO” on an
external controller.
5
C1
4
0V-B
0 V
Reference potential for STO-B.
3
STO-B
0 V / 24 V Control port B for the function STO.
2
0V-A
0 V
Reference potential for STO-A.
1
STO-A
0 V / 24 V Control port A for the function STO.
Table 7:
Pin assignment [X40]
In order to ensure the STO “Safe Torque Off” functions correctly, the control ports STO-A
and STO-B are to be connected in two channels with parallel wiring see
Section
. This interface can be part of an emergency stop circuit or a protective door arrangement,
for example.
5.2.4
Minimum wiring for commissioning [X40]
If at the moment of the commissioning of the servo positioning controller, there’s not (yet) a
safety orientated connection, the servo positioning controller SE-Power FS with the SE-
Power FS Safety Module STO can be commissioned with a minimal wiring according
with one emergency stop switch (2).
Note
Safety functions should never be bridged.
Do the minimal wiring of the inputs STO-A/STO-B and 0V-A/0V-B for commissioning such a
way that they must be forcibly removed if the final safety circuit will be done.