Omron VARISPEED L7 Manual page 50

Sinking/Sourcing Mode (NPN/PNP Selection)
The input terminal logic can be switched over between sinking mode (0-V common, NPN) and sourcing mode
(+24V common, PNP) by using the jumper CN5. An external power supply is also supported, providing more
freedom in signal input methods.
Table 2.10 Sinking/Sourcing Mode and Input Signals
Internal Power Supply – Sinking Mode (NPN)
S1
S2
B1 B2
A1 A2
SC
Internal Power Supply – Sourcing Mode (PNP)
S1
S2
B1 B2
A1 A2
SC
External Power Supply – Sinking Mode (NPN)
B3
IP24V
CN5
(+24V)
A3
External Power Supply – Sourcing Mode (PNP)
B3
IP24V
CN5
(+24V)
A3
S1
S2
B1 B2 B3
CN5
A1 A2 A3
SC
+
24 VDC
S1
S2
B1 B2 B3
CN5
A1 A2 A3
SC
-
24 VDC
2
IP24V
(+24V)
IP24V
(+24V)
19
2-