58 Rockwell Automation Publication 5000-UM005B-EN-P - November 2015
Chapter 4 Current/Voltage/Temperature-sensing Analog Input Module Features (5069-IY4)
Underrange/Overrange Detection
Underrange/Overrange Detection detects when the 5069-IY4 module is
operating beyond limits set by the input range.
The module can read input signal levels outside the low and high signal values for
each input range. The signal limits to which the module can read are thresholds.
Only when the signal is beyond a threshold is an underrange or overrange
condition that is detected and indicated.
For example, if a 5069-IY4 module channel uses the
+ 10V input range, an
overrange condition does not exist until the input signal is greater than 12V.
Table 16 lists the input ranges of the 5069-IY4 module and the thresholds in each
range before the module detects an underrange/overrange condition.
Table 16 - Input Type Underrange/Overrange Thresholds
Input Type Range - Current and
Voltage Input Type
Sensor Type - RTD
and Thermocouple
Input Type
Underrange
Threshold
Overrange
Threshold
Deadband
(2)
Current (mA)
0…20 mA < -0.07 mA
> 23.00 mA 0.07 mA
4…20 mA < 3 mA
(1)
Voltage (V)
±10.00V < -12.00V >12.00V 0.04V
0…5V < -0.02V > 6.00V 0.02V
0…10V < -0.04V > 12.00V 0.04
RTD
Pt 385 < -200 °C
< -328 °F
< 73 °K
< 132 °R
> 870 °C
> 1598 °F
> 1143 °K
> 2058 °R
N/A
Pt3916 < -200 °C
< -328 °F
< 73 °K
< 132 °R
> 630 °C
> 1166 °F
> 903 °K
> 1626 °R
Cu427 < -200 °C
< -328 °F
< 73 °K
< 132 °R
> 260 °C
> 500 °F
> 533 °K
> 960 °R
Ni672 < -80 °C
< -112 °F
< 193 °K
< 348 °R
> 320 °C
> 608 °F
> 593 °K
> 1068 °R
Ni618 < -60 °C
< -76 °F
< 213 °K
< 384 °R
> 250 °C
> 482 °F
> 523 °K
> 942 °R
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