Siemens SINAMICS S150 - Page 51

Controlling the safety functions
5.2 Control of "STO" and "SS1" via terminal module for option K82
Safety Integrated
Function Manual, 08/2023, A5E03264275A
49
Customer interface -X41
Table 5- 5 Terminal strip -X41
Terminal
Meaning
Technical data
-X41:1
Control of -K41:A1
Connection for actuating element at channel 1 "+"
-X41:2
Connected to -X41:1
-X41:3
Control of -K41:A2, -K42:A2, N conductor or ground
Connection of reference potential for actuating
elements at channel 1 and channel 2
-X41:4
Connected to -X41:3
-X41:7
Control of -K42:A1
Connection for actuating element at channel 2 "+"
-X41:8
Connected to -X41:7
-X41:10
Output -K41: Permanently wired with CU320-2: -X132:4
(DI 7)
Control circuit:
Rated voltage: 24 V DC/AC (0.85 … 1.25 x U
Rated)
Max. cable length (applies to the sum of the outgoing and return cables):
• 24 V DC (min. cross-section, 0.75 mm²): 1000 m
• 24 V AC (cable capacitance: 300 pF/m): 500 m
The value applies for 50 Hz; at 60 Hz, the cable lengths must be reduced by 20 %.
WARNING
Danger to life as a result of exceeding the permissible cable lengths and/or the
permissible cable capacitances
When the permissible cable lengths and/or the permissible cable capacitances are exceeded,
the relay can remain energized as a result of the coupling capacitances of the cable and the
associated residual current, in spite of the fact that the actuating elements are open. Death
and serious injury can result in the event of an error.
•
Do not exceed the maximum permissible cable lengths and cable capacitances.
Max. connectable cross-section: 2.5 mm²
Fuse: Max. 4 A
Installation altitude: up to 4000 m for overvoltage category II according to IEC 61800-5-1