LORD V-Link-200, Руководство пользователя

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V-Link
®
-200
User Manual
6.6 Pin Descriptions
Signal Description
Pin
Type
Range
Vin
Node external power supply
An alternate to the node power jack. See Powering
the Node on page 73 .
power
input
7.5 to 36 V dc
sufficient current capacity
for sensors
GND
Return
For node power and sensor excitation
power
return
return
S+
Sensor excitation
Power to external sensors. At sampling rates under
32Hz, it is only active when the node is sampling the
sensors. output
4.096 V dc
maximum combined load
on all excitation pins is 150
mA.
Sx+
Differential sensor input +
Positive input to the node programmable gain amp-
lifier (PGA). Used with S-.
input
0 to 5 V dc including
gain and offset
Wheatstone Bridge com-
patible sensor with 120 Ω
input impedance recom-
mended
Sx-
Differential sensor input +
Negative input to the node programmable gain
amplifier (PGA). Used with S+.
Sx S
Three wire input
Used only for three wire configuration of quarter
bridge strain gauge bridges. Leave unconnected for
non quarter strain gauge bridge applications.
input
4.096 V dc including
gain and offset
Wheatstone Bridge com-
patible sensor with 120 Ω
input impedance recom-
mended
Ainx
Single ended sensor input
Routed directly to the node analog to digital (A/D)
converter. Return is node GND.
input -10.24 to +10.24 V dc
Table 4 -
Node Pin Descriptions
42