Siemens SINAMICS S150 - Page 131

Controlling the safety functions
7.2 Control of "STO" and "SS1" via terminal module for option K82
Safety Integrated
Function Manual, 05/2010, A5E03264275A
131
Customer interface –X41
Table 7- 2 Terminal strip -X41
Terminal Meaning Technical data
-X41:1 Activation –K41: A1 Connection for activation element at channel 1 "+"
-X41:2 Connected to -X41:1 Connection for activation element at channel 1 "+",
for interconnecting motor modules in groups
-X41:3 Activation –K41:A2, -K42:A2 , N conductor or ground Connection of reference potential for activation
elements at channel 1 and channel 2
-X41:4 Connected to -X41:3 Connection of reference potential for activation
elements at channel 1 and channel 2, for
interconnecting motor modules in groups
-X41:5 Checkback signal, status –K41, -K42 Connection of supply voltage for optional checkback
signal
-X41:6 Checkback signal, status –K41, -K42 Connection for optional checkback signal, for
interconnecting motor modules in groups
-X41:7 Activation –K42: A1 Connection for activation element at channel 2 "+"
-X41:8 Connected to -X41:7 Connection for activation element at channel 2 "+",
for interconnecting motor modules in groups
-X41:9 Connection of optional checkback For the option of connecting other checkback signals
in series when motor modules are grouped
-X41:10 Output -K41: Permanently wired with
CU320-2: -X132:4 (DI7)
Output -K41: For connecting to a digital input in
accordance with the Safety settings on the CU320-2
(already wired in option K90)
Control circuit:
Rated voltage: DC/AC 24 to 230 V (0.85 to 1.1 x Us)
Max. line length (applies to total of current and return conductors):
● AC (line capacity: 300 pF/m):
– 24 V: 5000 m
– 110 V: 800 m
– 230 V: 200 m
The values apply for 50 Hz, at 60 Hz the line lengths must be reduced by 20%.
WARNING
If the permissible cable lengths and/or the permissible cable capacity is exceeded,
then due to the couple capacity of the cable and the associated residual current it
may be the case that the relay remains energized in spite of opened activation
element.
● DC (min. cross-section 0.75 mm
2
): 1500 m
Max. connectable cross-section: 2.5 mm²
Fuse: max. 4 A