Rockwell Automation 1771-IXE/D Thermocouple/Millivolt Input Module User Manual - Manual (Page 21)

RUN
FLT
TC/MV
Green RUN indicator
Red FAULT indicator
2–7 Installing the Thermocouple/Millivolt Input Module
Publication 1771Ć6.5.130 Ć May 1999
The front panel of the thermocouple/mV input module contains a
green RUN indicator and a red FAULT indicator. At power-up, the
module momentarily turns on the red indicator 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.
Thereafter, the module lights the green RUN indicator when
operating without fault, or lights the red FAULT indicator when it
detects fault conditions. If the red FAULT indicator is on, block
transfers will be inhibited. Possible module fault causes and
corrective action are discussed in Chapter 8, Troubleshooting.
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
Chapter Summary