Configuration and Connection Examples 12.2010
6SE7087-6QX70 (Version AM) Siemens AG
2-22 Compendium Motion Control SIMOVERT MASTERDRIVES
The safety relay circuit including its internal layout is always identical.
This means that the same circuit principle can be applied on all unit
types. However, the terminal designations differ according to the unit
type.
1 42 3
Supply to
optocouplers/
FOC
P15
Terminal strip
-X533
Fig. 2-8 MASTERDRIVES Compact PLUS, STO control, schematic diagram
Terminal Designation Description
4 P24 DC
Supply voltage for
"safety relay"
3 Control input "STO"
Rated resistance of operating
coil
≥ 823 Ω ± 10 % at 20 °C
2 Contact 2 Checkback "STO"
1 Contact 1 Checkback "STO"
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