2.5.2 Current Sink Connection
Figure 2-2 depicts the wire connection for current output from PISO-DA2/DA2U
when external power supply is used. It works fine when the external load resistor
is smaller than
400
Ω
. Note that the external power supply used in this wire
connection must be a DC source b8 V and +36 V
DC
.
Figure 2-2: Current output Connection when external power is used
2.5.3 Current sink with internal power supply
If your system does not offer external power supply, a built-in +15 V
DC
power
source provided by PISO-DA2/DA2U can be applied to build the signal current
output in loop current sink type. The wire connection is illustrated as below.
-
+
D/A
Converter
Load
R
PISO-DA2 Side
External Site
+15
I Sink
-
+
-
+
D/A
Converter
Power
Supply
Load
R
PISO-DA2 Side
External Site
I Sink
Figure 2-3: current output connection when internal power supply is used
PISO-DA2/DA2U User Manual (Ver.2.7, Mar. 2012, PMH-020-27)
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