Unitronics IO-AI4-AO2 Manual page 34

I O - A T C 8
I / O E x p a n s i o n M o d u l e
Analog Inputs
Number of inputs
Input range
Input type
Conversion method
Normal mode
Resolution at 0-10V,
0-20mA
Resolution at 4-20mA
Conversion time
Fast mode
Resolution at 0-10V,
0-20mA
Resolution at 4-20mA
Conversion time
Input impedance
Isolation
Absolute maximum rating
Linearity error
Error limits
Status indicators
(OUT OF RANGE)
Environmental
Operating temperature
Storage temperature
Relative Humidity (RH)
Dimensions (WxHxD)
Weight
Mounting
Notes:
1. Each input may be set as either thermocouple, voltage (0-10V), or current (0-20mA, 4-20mA)
via wiring, jumper and software settings.
2. The device can also measure voltage within the range of -5 to 56mV, at a resolution of 0.01mV.
The device can also measure raw value frequency at a resolution of 14-bits(16384).
3. The input analog value represents the measured value as shown in the following examples:
- Thermocouple: a value of 262 is represented as 26.2ºC.
- mV: value of 262 is represented as 2.62mV.
4. The value of a thermocouple may also indicate when the sensor is not connected to the input, or
when the analog value exceeds the permissible range. If such is the case, the value will be 32767.
5. The voltage or current value of analog inputs can also indicate faults, as shown in the table below.
Value: 12-bit
(Fast mode)
-1
4096
32767
10
8 (single-ended) See Note 1.
0-10V, 0-20mA, 4-20mA. See Note 1.
Either Normal or Fast mode, according to the filter type selected in software
settings
Voltage to frequency
14-bit (16384 units)
3277 to16383 (13107 units)
100mSec minimum per input
12-bit (4096 units)
819 to 4095 (3277 units)
25mSec minimum per input
>400KΩ—voltage
500Ω—current
None
±15V—voltage
±30mA—current
0.04% max of full scale
0.4% of input value
Red LEDs—Lit when the corresponding input is receiving current or voltage in
excess of the input range. See Note 5.
IP20/NEMA1
0° to 50°C (32 to 122° F)
-20° to 60°C (-4 to 140° F)
5% to 95% (non-condensing)
80mm x 93mm x 60mm (3.15 x 3.66 x 2.362")
150g (5.3 oz)
Either onto a 35mm DIN-rail or screw- mounted.
Value: 14-bit
(Normal mode)
-1
Slightly below the input range.
16384
Slightly above the input range.
32767
Greatly above or below the input range.
Input Value
Deviates:
Unitronics Industrial Automation
1 2 / 0 3