Siemens SINAMICS Series Function Manual page 46

Controlling the safety functions
5.2 Control of "STO" and "SS1" via terminal module for option K82
Note
The checkback signal is not necessary for compliance with the standard DIN EN ISO 13849-
1 (formerly EN954-1) cat. 3 PL d and DIN EN 61508 SIL2.
The selection of the safety function must be performed in two channels. A switch according
to ISO 13850/ EN 418, positive opening according to EC 60947-5-1, or a certified safety
controller must be used as actuating element.
Danger to life as a result of failure of the safety functions through unsuitable selection of the
actuating element
An unsuitable actuating element may cause the safety function to fail which can result in
death or serious injury.
• Select the correct actuating element for the purpose of compliance of the overall system
Forced checking procedure
The maximum value for the forced checking procedure interval when using option K82 is
6 months (4380 h).
Customer interface -X41
Table 5- 4 Terminal strip –X41
Terminal Meaning
-X41:1 Control of -K41:A1
-X41:2 Connected to -X41:1
-X41:3 Control of -K41:A2, -K42:A2 , N conductor or ground
-X41:4 Connected to -X41:3
-X41:5 Feedback signal, status -K41, -K42
-X41:6 Feedback signal, status -K41, -K42
-X41:7 Control of -K42:A1
-X41:8 Connected to -X41:7
-X41:9 Not assigned
-X41:10 Output -K41: Permanently wired with CU320-2: -X132:4
(DI 7)
46
WARNING
with the required standard (DIN EN ISO 13849-1 (formerly EN954-1) Cat. 3 PL d or DIN
EN 61508 SIL2).
Technical data
Connection for actuating element at channel 1 "+"
Connection of reference potential for actuating
elements at channel 1 and channel 2
Connection of supply voltage for optional feed-
back signal
Connection of optional checkback signal
Connection for actuating element at channel 2 "+"
Function Manual, 07/2016, A5E03264275A
Safety Integrated