Rockwell Automation 1797-OE8H FLEX Ex HART Analog Modules User Manual - Manual (Page 108)

Publication 1797-6.5.3 - March 2006
6-10 Apply FLEX Ex Analog I/O Modules
Power Supply Considerations
When applying power, consider the certain characteristics of the wire
connecting the power supply output to a module’s power input. The wire
cannot exhibit more than:
• 0.1 Ω of resistance (+V and -V combined)
• 800 nF of capacitance
• 10 µF of inductance
Typically, these restrictions will yield wiring lengths of not more than 3.5 m or
5.8 m (1.5 mm
2 and 2.5 mm 2 wire respectively) without the use of special
wiring or wiring methods.
Chapter Summary In this chapter you learned how to apply the FLEX Ex analog I/O modules.
Move to Chapter 7 to learn about troubleshooting your modules.