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Section OEM . ISOLATED SIGNAL CONVERTERS
5
Table 5
|
INPUT signal connections
INPUT
signal
Input terminals
Connections
7
8
9
4/20 mA
passive input Vexc
mA-
7 8 9
mA+ (+15 Vexc)
mA-
4/20 mA
active input
mA-
mA+
7 8 9
mA+
mA-
0/10 Vdc
(2 wires)
+Vdc common
7 8 9
common
+Vdc
0/10 Vdc
(3 wires)
Vexc
+Vdc common
7 8 9
+15 Vexc
common
+Vdc
ACTIVE AND PASSIVE SIGNALS
The instrument can be configured to measure process signals in 4/20 mA
(active and passive) and 0/10 Vdc. The instrument has two outputs :
• output 1 is fixed to 4/20 mA (active and passive).
• output 2 is fixed to 4/20 mA (active and passive).
To select the ‘
active
’ or ‘
passive
’ mA versions at the input and output
signals, configure the connection terminals according to your needs.
• active mA inputs are powered by an external element, and the
instrument receives an active mA signal.
• passive mA inputs are powered by the instrument, by using the
+15 Vdc (terminal 7) to power the transducer.
• active mA outputs are powered by the instrument.
• passive mA output are powered by an external element and the
instrument only controls the value of the mA, but it does not provide
power to the output loop.
Содержание I3 Series
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