Fig. 8: Safe Inputs 1 To 8; Fig. 9 Pinout Default Setting; Fig. 10 Pinout Alternative 1 (Parameter Input Power Mode = Power Mode A); Fig. 11 Pinout Alternative 2 (Parameter Input Power Mode = Power Mode B) - Beckhoff EP1957-0022 Operating Instructions Manual

Operation
5.2.2.5 Signal connection for inputs
The EtherCAT Box has eight fail-safe inputs.
Fig. 8: Safe inputs 1 to 8
Fig. 9: PinOut default setting
Fig. 10: PinOut alternative 1 (parameter input power mode = power mode A)
Fig. 11: PinOut alternative 2 (parameter input power mode = power mode B)
26 Version: 2.0.0 EP1957-0022 and EP1957-2222