Controlling the safety functions
7.2 Control of "STO" and "SS1" via terminal module for option K82
Safety Integrated
136 Function Manual, 05/2010, A5E03264275A
Customer interface –X41
Table 7- 3 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
-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
-X41:5 Checkback signal, status –K41, -K42 Connection of supply voltage for optional
checkback signal
-X41:6 Checkback signal, status –K41, -K42 Connection of optional checkback signal
-X41:7 Activation –K42: A1 Connection for activation element at channel 2 "+"
-X41:8 Connected to -X41:7
-X41:9 Not assigned
-X41:10 Output -K41: Permanently wired with CU320-2: -X132:4
(DI7)
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 mm²): 1500 m
Max. connectable cross-section: 2.5 mm²
Fuse: max. 4 A
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