Omron VARISPEED F7 User Manual page 60

The functions of DIP switch S1 and jumper CN15 are shown in the following table.
Table 2.10 DIP Switch S1 and Jumper CN15 Settings
Name
RS-485 and RS-422 terminating resis-
S1-1
tance
S1-2 Input method for analog input A2
CN15- Multifunction analog output FM voltage/
CH1 current switch
CN15- Multifunction analog output AM voltage/
CH2 current switch
Sinking/Sourcing Mode
The input terminal logic can be switched between sinking mode (0-V common) and sourcing mode (+24V
common) by using the terminals SN, SC, and SP. An external power supply is also supported, providing more
freedom in signal input methods.
Table 2.11 Sinking/Sourcing Mode and Input Signals
Internal Power Supply – Sinking Mode
Internal Power Supply – Sourcing Mode
Function
OFF: No terminating resistance
ON: Terminating resistance of 110 Ω
V: 0 to 10 V (internal resistance: 20 kΩ)
I: 4 to 20 mA (internal resistance: 250 Ω)
I: Current output
V: Voltage output
I: Current output
V: Voltage output
Setting
External Power Supply – Sinking Mode
External +24V
External Power Supply – Sourcing Mode
External +24V
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