Hitachi SJ Series - Page 55

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Chapter 4
Safety Function
4.7.3 Release of SLS/SDI
SLS/SDI function is released by releasing the
corresponding input signal.
4.7.4 Release of SFS
SFS function is released by releasing the activated input
SS1, SLS and SDI signal and releasing the activating
STO/SBC in the same group (A or B).