Rockwell Automation 1771-IXHR , D17716.5.80 HIGH RESOL.THERMOCOUPLE - Manual (Page 17)

Installing the High Resolution
Thermocouple/Millivolt Input Module
Chapter 3
3Ć6
When installing your module in an I/O chassis:
1. First, turn off power to the I/O chassis:
WARNING: Remove power from the 1771 I/O chassis backplane
and wiring arm before removing or installing an I/O module.
Failure to remove power from the backplane could cause injury or
equipment damage due to possible unexpected operation.
Failure to remove power from the backplane or wiring arm could
cause module damage, degradation of performance, or injury.
2. Place the module in the plastic tracks on the top and bottom of the slot that
guides the module into position.
3. Do not force the module into its backplane connector. Apply firm even
pressure on the module to seat it properly.
4. Snap the chassis latch over the top of the module to secure it.
5. Connect the wiring arm to the module.
The front panel of the input module contains a green RUN and a red FLT (fault)
indicator (Figure 3.4). At power–up, the green and red indicators are on. An
initial module self–check occurs. If there is no fault, the red indicator turns off.
The green indicator will blink until the processor completes a successful write
block transfer to the module. If a fault is found initially or occurs later, the red
FLT indicator lights. Possible module fault causes and corrective action are
discussed in Chapter 8, Troubleshooting.
Figure 3.4
Diagnostic Indicators
RUN
FLT
TC/MV
Module
10528-I
Installing the Input Module
Interpreting the Indicator
Lights