Module limitations, Input voltage derating, Sensor-power derating – Rockwell Automation 1794-OB16D FLEX I/O Diagnostic Modules User Manual User Manual
Page 26: Input voltage derating sensor-power derating
![background image](/manuals/579987/26/background.png)
Publication 1794-UM061A-EN-P - July 2006
24 About the FLEX I/O Diagnostic Input Module
Module Limitations
Input Voltage Derating
You must derate the input voltage applied to each input channel, based on
operating ambient temperature, to keep module power dissipation within an
acceptable level.
Sensor-Power Derating
You must derate the allowable current from each channel sensor-power port
based on operating ambient temperature to keep module power dissipation to
an acceptable level.
0
5
10
15
25
20
30
10
20 30 40 50
55
31.2
26.4
Ambient Temperature
(0°C)
Input
Voltage
(V)
Sensor
Power
Current
(mA)
Ambient Temperature (° C)
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