SSR – Safe Speed Range

The SSR safety sub-function prevents the speed of the drive from leaving a specified range. If the permitted speed is exceeded or undershot, the SSR safety sub-function will be triggered and a fault response will be initiated at the same time (usually SS1).

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SSR safety sub-function monitored

 

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SSR safety sub-function is triggered

v

=

Speed

t

=

Time

t1

=

Point in time at which SSR is activated.

t2

=

Point in time at which SSR is deactivated.