Omron L7Z Quick Start Manual page 12

Internal Power Supply – Sinking Mode (NPN)
Internal Power Supply – Sourcing Mode (PNP)
EN-9
Table 3 Sinking/Sourcing Mode and Input Signals
S1
S2
B1 B2 B3
IP24V
CN5
(+24V)
A1 A2 A3
SC
S1
S2
B1 B2 B3
IP24V
CN5
(+24V)
A1 A2 A3
SC
External Power Supply – Sinking Mode (NPN)
S1
S2
B1 B2 B3
A1 A2 A3
SC
+
24 VDC
External Power Supply – Sourcing Mode (PNP)
S1
S2
B1 B2
A1 A2
SC
-
24 VDC
IP24V
CN5
(+24V)
B3
IP24V
CN5
(+24V)
A3