Rockwell Automation 1771-IR Series D RTD Input Module User Manual - Manual (Page 21)

2–7 Installing the RTD Input Module
Publication1771Ć6.5.129 - March 2000
The front panel of the RTD input module contains a green RUN
indicator and a red FAULT indicator. At power-up, the module
momentarily turns on both indicators as a lamp test, then checks for:
•
correct RAM operation
•
EPROM operation
•
EEPROM operation
•
a valid write block transfer with configuration data
If there is no fault, the red indicator turns off.
The green indicator comes on when the module is powered. It will
flash until the module is programmed. If a fault is found initially or
occurs later, the red fault indicator lights. The module also reports
status and specific faults (if they occur) in every transfer of data
(BTR) to the PC processor. Monitor the green and red indicators and
status bits in word 1 of the BTR file when troubleshooting
your module.
In this chapter you learned how to install your input module in an
existing programmable controller system and how to wire to the field
wiring arm.
Interpret Status Indicators
RUN
FLT
10528ĆI
GreenRUN indicator
Red FAULT indicator
RTD
INPUT
Chapter Summary