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Analog Input Terminals
Section 5-7
SW102
Note
Input range settings for Input 0 and Input 1 are shared, and those for Input 2
and Input 3 are shared. An example is shown below.
Input 0 and Input 1: 4 to 20 mA (Pins 1, 2, 3 = OFF, OFF, ON)
Input 2 and Input 3: 1 to 5 V (Pins 4, 5, 6 = ON, OFF, OFF)
Internal Circuits
The following diagram shows the internal circuits for the SRT2-AD04.
Pin 1
Pin 2
Pin 3
Range setting for Inputs 0 and 1
Pin 4
Pin 5
Pin 6
Range setting for Inputs 2 and 3
OFF
OFF
OFF
0 to 5 V (Factory setting)
ON
OFF
OFF
1 to 5 V
OFF
ON
OFF
0 to 10 V
ON
ON
OFF
–10 to 10 V
OFF
OFF
ON
4 to 20 mA
ON
OFF
ON
0 to 20 mA
Do not set to any values but those given above.
Pin 7
Averaging
OFF
No averaging (Factory setting)
ON
With averaging (8-time moving average)
Pin 8
Always set to OFF.
Averaging
Reserved (Always OFF.)
Input range setting
V+
I+
–
250
Ω
V+
I+
–
250
Ω
510 k
Ω
V+
I+
–
250
Ω
V+
I+
–
250
Ω
510 k
Ω
510 k
Ω
510 k
Ω
510 k
Ω
510 k
Ω
510 k
Ω
AG
510 k
Ω
BS+
BS–
BD H
BD L
DC static
converter
(Insulated)
Analog GND
Inter
nal
circuitr
y
Input 0
Input 1
Input 2
Input 3