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Safety Integrated - Industry - Siemens

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Bsp. -Nr.<br />

3.1<br />

SAFE STANDSTILL Category 3 according EN 954-1<br />

with SINAMICS S120<br />

Application examples SINAMICS S120<br />

Safe standstill, Safe Stop 1 implemented using safety combination<br />

In accordance with the standard prIEC61800-5-2, the designation<br />

Safe Standstill is replaced by Safe Torque Off (STO).<br />

The Safe Stop 1 (SS1) function is integrated in SINAMICS S120<br />

version V2.4 or later.<br />

Schematic diagram<br />

Control Unit<br />

Allocation<br />

DI -> Drive<br />

DRIVE-<br />

CLIQ<br />

Channel 1<br />

Monitoring<br />

Channel 2<br />

Shut Down Path 1 Shut Down Path 2<br />

Schematic diagram of the internal control of both shutdown paths<br />

428 Functional Example No. MC-FE-I-003-V12-EN<br />

Power Unit<br />

Diagnostic<br />

Controller Controller Driver<br />

SH AP<br />

DC-<br />

Supply<br />

Powerelectronic<br />

M<br />

Power<br />

connector

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