Unitronics IO-AI4-AO2 Manual page 44

I O - L C 1 , I O - L C 3
I / O E x p a n s i o n M o d u l e s
Linearity error
Common-mode rejection
Offset drift
Gain drift
Calibration and Zero
Filter
Loadcell input values
Polarity
Representation modes
Rounding
Effective resolution
Status indicators
(OUT OF RANGE)
Digital Input
Number of inputs
Input type
Galvanic isolation
Dig. input to ext. supply
Dig. input to bus
Dig. input to Loadcell
Dig. input to digital outputs
Nominal input voltage
Input voltage
Input current
Response time
Status indicator
(IN)
Digital Outputs
Number of outputs
Output type
Galvanic isolation
Dig. output to ext. pwr
supply
Dig. output to bus
Dig. output to Loadcell
Dig. output to digital input
8
0.01% maximum of full scale
>100dB @ DC, 50Hz, 60Hz
100nV / °C typ.
3ppm / °C typ.
—2 to 12 calibration-points (zero-point not required), direct/indirect point
addressing for editing and deleting calibrated points.
—Zero and tare acquisition and/or editing.
—Auto zero tracking
Adjustable settling time up to 24 sec. See Note 2 for details.
Either one or two independent values, signed 16 or 24 bit. Each weight/strain
value may be represented in a different mode; representation modes are
selected via software.
Fully bipolar operation – weight/strain values can be either positive or negative.
Net, Gross, Net Min, Net Max, uV/V or A/D Raw Value.
*
When uV/V is selected for one value, both values will be represented in uV/V.
**
The Net and Gross values may also indicate connection problems. See Note 3
for details.
The Net, Gross, Net Min and Net Max values may be rounded by 1, 2, 5, 10,
20, 50 or 100.
See Effective Resolution, page 10.
Red LEDs:
—Lit when the corresponding Loadcell is not connected to the input, or when
the input analog value exceeds the permissible range. See Note 3 for
details.
—Blinks when the external power-supply is not detected. See Note 4 for details.
1
pnp (source)
No
Yes
No
No
12 / 24VDC
0-5VDC for Logic '0'
9-28.8VDC for Logic '1'
5.5mA @ 12VDC,
11.5mA @ 24VDC
10mSec typical
Green LED—Lit when the input is active. See Note 5.
2 pnp (source)
P-MOSFET (open drain)
No
Yes
No
No
Unitronics Industrial Automation
4 / 0 4