Unitronics IO-AI4-AO2 Manual page 43

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IO-LC1, IO-LC3 Technical Specifications
External Power-Supply
Nominal operating voltage
Operating voltage range
Power Consumption
Max. current consumption
From the adapter's 5VDC
From external power-
supply
Max. total internal power
dissipation
Status Indicator
(RUN)
Loadcell Inputs
Number of inputs
Galvanic isolation
Loadcell to ext. pwr supply
Loadcell to bus
Loadcell to digital input
Loadcell to digital outputs
Input voltage ranges
Signal (+SG & -SG)
Differential
Common-Mode
Sense (+SN & -SN)
Differential
Common-Mode
Excitation output (+E & -E)
Excitation type
Differential output voltage
Output current
Per Loadcell input
Total
Short circuit protection
A/D Converter
Conversion method
Resolution
Conversion period
Unitronics Industrial Automation
I O - L C 1 , I O - L C 3
12 / 24VDC
10.2 to 28.8VDC
60mA
At 12V
One 350Ω Loadcell 45mA
4 x 350Ω Loadcells 70mA
12 x 350Ω Loadcells 140mA
At 12V At 24V
1.0W 1.2W
Green LED:
—Lit when a communication link is established between module and OPLC.
—Blinks when the communication link fails.
3 for IO-LC3, 1 for IO-LC1
No
Yes
No
No
Gain Setting (S.W. selectable)
0
1
*
Offset compensation (S.W. selectable) can shift span by approx. -77.5mV to
+77.5mV (2.5mV steps).
1.5Vmin to 3.5Vmax (relative to the 0V terminal voltage)
-5V to +5V nominal
0Vmin to 5Vmax (relative to the 0V terminal voltage)
Software selectable: DC or AC (Alternating polarity square wave, see Note 6)
5V nominal
4.70Vmin to 5.20Vmax
200mA maximum (up to 12 x 350Ω Loadcells)
200mA maximum (up to 12 x 350Ω Loadcells)
Yes, up to 1 minute
Sigma–Delta
24 bits
12.5msec (80Hz)
I / O E x p a n s i o n M o d u l e s
At 24V
30mA
See Note 1 for details
45mA
80mA
*
Nominal Span
-20mV to +20mV
-80mV to +80mV
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