7.9.9.2 Control circuit single channel SIL2/PLd (example)
The example shows a circuit diagram with one axis connected to an emergency stop circuit.
The STO of the drives is switched by a protective screen. A single channel switch-off is
used. The safety switch gears used in the example are manufactured by Pilz and fulfill at
least the PLd acc. to ISO 13849-1. Further information to the safety switch gears is available
from Pilz. The use of safety switch gears of other manufacturers is possible, if these also ful-
fill the SIL CL2 according to IEC 62061 and PLd according to ISO 13849-1.
Consider the wiring instructions (➜ # 43).
S748-772 Instructions Manual | 7 Technical description
Kollmorgen | kdn.kollmorgen.com | July 2019 47
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