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<Example 2> When 4-20 mA is used for speed reference signal to enter from AIN1.
Setting Jumpers “JP1A to Open” and “JP1B to Close”, 20 mA when entered corresponds to about 10 V output.
On the other hand, 4 mA input corresponds to 2 V output and thus set Gain and Offset so that 4 mA input
corresponds to 0 reference and 20 mA to 25000 count.
Then change the software setting so that this input data is stored in the speed reference signal SP_REF1.
TB1-30
TB1-31
AIN1
Gain
$AIN1_GS
Offset
$GAIN1_OS
Data save address
$AIN1_AS
ARND-3120A/B
+
-
4/20 mA signal
±
10V input JP1A
4-20mA input JP1B
Fig. 3.8.3 Analog Input Circuit
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