Omron SYSDRIVE 3G3RV Series User Manual page 71

The functions of DIP switch S1 are shown in the following table.
Name
RS-485 and RS-422A terminating resis-
S1-1
tance
S1-2 Input method for analog input A2
n Sinking/Sourcing Mode
The input terminal logic can be switched between sinking mode (0-V common) and sourcing mode (+24-V
common) if shunt connector CN5 is used. An external 24-V power supply is also supported, providing more
freedom in signal input methods.
Internal Power Supply
CN5
CN5 (NPN set) Factory setting
Shunt
position
SC
Sink-
ing
Mode S1
S2
CN5
SC
Sourc-
ing
Mode
S1
S2
Table 2.17 DIP Switch S1
Function
OFF: No terminating resistance
ON: Terminating resistance of 110 Ω
OFF: 0 to 10 V (internal resistance: 20 kΩ)
ON: 4 to 20 mA (internal resistance: 250 Ω)
Table 2.18 Sinking/Sourcing Mode and Input Signals
IP24V (24 V)
CN5 (PNP set)
IP24V (24 V)
Wiring Control Circuit Terminals for Asian Models
Setting
External Power Supply
CN5
CN5 (EXT set)
External +24 V
SC
S1
S2
CN5
CN5 (EXT set)
External + 24 V
SC
S1
S2
IP24V (24 V)
IP24V (24 V)
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