Rockwell Automation 1771-IFE/C INSTL.INSTRUCTIONS ANALOG INPU - Manual (Page 13)

Analog Input Module 13
Publication 1771Ć5.45 - July 1997
Possible module fault causes and corrective action is described in the
following table.
Indicators Probable Cause Recommended Action
RUN (green on)
FLT (red off)
Normal operation None
RUN (green blinking)
FLT (red off)
Awaiting configuration
Block Transfer Write
Send configuration BTW
RUN (green off)
FLT (red on)
Hardware failure in
module
Return module for repair
RUN (green off)
FLT (red off)
No power Turn off power. Remove and reinsert
module into chassis. Return power.
If problem still exists, and chassis power
supply is functioning properly, return the
module for repair.
Description Value
Inputs per module 16 singleĆended; 8 differential low level
Module Location 1771 I/O rack - 1 slot
Input voltage ranges (nominal)
+1 to +5V dc
0 to +5V dc
-5 to +5V dc
-10 to +10V dc
0 to +10V dc
Input current ranges (nominal)
+4 to +20mA
0 to +20mA
-20 to +20mA
Resolution 12-bit binary
12 bits plus sign on bipolar ranges
Accuracy 0.1% of full scale range @ 25 o C
Linearity +1 LSB
Repeatability +1 LSB
Isolation Voltage Isolation meets or exceeds UL Standard 508, and CSA Standard
C22.2 No. 142.
Input overvoltage protection
200V (voltage mode) 1
8V (current mode) 2
Input overcurrent protection (current ranges) 30mA
Common mode voltage
+14.25 Volts
Input impedance >10 Megohms for voltage ranges; 250 ohms for current ranges
Common mode rejection 80 db, dc-120 Hz
Current Requirements 500mA @ +5V from I/O chassis backplane
Power Dissipation 2.5 Watts (maximum)
Specifications continued on next page
For detailed troubleshooting
information, see chapter 7 of
your Analog Input User Manual
(publication 1771Ć6.5.115).
Troubleshooting
Specifications