Rockwell Automation 1771-IFF/A,D17716.5.116 FAST ANALOG INPUT MODULE - Manual (Page 69)

Appendix
A
Publication 1771Ć6.5.116 - July 1996
Specifications
Description Value
Inputs per module 16 single-ended; 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 This isolation meets or exceeds the requirements of
UL Standard 508, and CSA Standard C22.2 No. 142.
Input overvoltage protection
35V (voltage mode) 1
8V (current mode) 2
Input overcurrent protection (current ranges) 30mA
Common mode voltage
+35Volts
Input impedance >10 Megohms for voltage ranges; 250 ohms for current ranges
Common mode rejection 80 db, dc-120Hz
Current Requirements 500mA @ +5V from I/O chassis backplane
Power Dissipation 2.5 Watts (maximum)
Thermal Dissipation 8.52 BTU/hr (maximum)
Unscaled BCD and binary output to
processor
0000 to +4095
10
for polar ranges (0 to 5V, +1 to +5V, 0 to +20mA,
and +4 to +20mA)
-4095
10
to 4095
10
for bipolar ranges ( +5V, +10V, +20mA)
Engineering units sent to processor +9999
10
with selectable scaling
Fastest Internal scan rate
8 channels in less than 2ms (Depends on number of oversamples,
number of channels, and active features.)
Environmental conditions
operational temperature:
storage temperature:
relative humidity: Operating
Storage
0 to 60 0 C (32 to 140 0 F)
-40 to 85 0 C (-40 to 185 0 F)
5 to 95% (without condensation)
5 to 95% (without condensation)
Conductors Wiring
Category
14 gauge (2mm 2 ) stranded (max.)
3/64 inch (1.2mm) insulation (max.)
Category 2 3
Specifications continued on next page