Wiring Control Circuit Terminals
2
-
25
DIP Switch S1 and Shunt Connector CN15
The DIP switch S1 and shunt connector CN 15 of the optional terminal board (3G3PV-PETC618120) are
described in this section.
Fig 2.18 DIP Switch S1 and Shunt Connector CN15
The functions of DIP switch S1 are shown in the following table.
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 2.10 DIP Switch S1
Name
Function
Setting
S1-1
RS-485 and RS-422 terminating resis-
tance
OFF: No terminating resistance
ON: Terminating resistance of 110
Ω
S1-2
Input method for analog input A2
OFF: 0 to 10 V (internal resistance: 20 k
Ω
)
ON: 4 to 20 mA (internal resistance: 250
Ω
)
* Note: Refer to Table 2.10 for S1 functions.
**Note: CN15 is not available at the standard terminal board.
An optional terminal board with CN15 Shunt Connector is available.
The standard setting is voltage output.
: Factory settings
Terminating resistance*
Analog input A2 switch
S1
CN15
ON
V
OFF
I
CN15
S1
Voltage output
Current output
Analog output switch**
