Omron Healthcare VARISPEEDF7 - Manual (Page 12)

EN-11
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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 3 Sinking / Sourcing Mode and Input Signals
Internal Power Source - Sinking Mode (NPN) External Power Source - Sinking Mode (NPN)
External +24 V
Internal Power Source - Sourcing Mode (PNP) External Power Source - Sourcing Mode (PNP)
External +24 V