Lenze EVF9383 - Manual (Page 414)

Safety engineering
Important notes
11
11.1
l
11.1−2 EDSVF9383V EN 7.1−04/2012
ƒ After the installation the operator has to check the function of the
"Safe torque off" circuit.
– The functional test must be repeated at regular intervals.
– Basically, the inspection intervals depend on the application, the
related risk analysis, and the overall system. The inspection intervals
must not be longer than 1 year.