Panasonic MINAS A6 Multi Series Technical Reference page 231

8.4Connection example
8.4.2 Safety input(for sink output connection)
Examples of safety input connection for sink output connection are shown in the figure below.
When connecting the sink output circuit to the safety input, connect the positive terminal of the external
power supply DC 24 V to the common input (COMA, COMB).
When test pulse is not used
 Duplex safety input
 Safety input
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