Siemens ST PCS 7 User Manual

ET 200S distributed I/O

Siemens ST PCS 7 · November 2007

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The SIGUARD safety system is based on special terminal and 

power modules that can be combined with the ET 200S motor 

starters and a failsafe kit to achieve the highest safety category 

4 (according to EN 954-1). It enables the evaluation of emer-

gency stop circuits, the monitoring of protective doors or the im-

plementation of time-delayed shut-downs. The costs involved in 

the configuration and wiring of conventional safety systems are 

no longer incurred. All standard safety applications can be cov-

ered with SIGUARD (see the ET 200S manual for examples of 

applications).

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1)

PM-D F3 power module only approved up to Category 3

2)

F kit required for standard motor starter only; already integrated in high 

feature motor starter

1)

For F1 or F2 in higher-level or individual safety group (voltage group)

2)

For F1 or F2 in lower-level cascaded safety group (partial voltage group)

3)

For expansion with F3 or F4 in separate ET 200S station (voltage group)

4)

For expansion with F3 or F4 in the same ET 200S station (partial voltage 

group)

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© Siemens AG 2007