Rockwell Automation 1794-IP4 Series B FLEX I/O PULSE COUNTER User Manual - Manual (Page 64)

Appendix
A
Publication 1794ĆUM016B-EN-P - August 2002
Specifications
Specifications - 4 Channel Pulse Counter Module
(Cat. No. 1794-IP4)
Number of Inputs 4 pulse counter interfaces - 2 inputs each
Counting Frequency 100KHz maximum. Each signal condition must be
stable for at least 2 µ s to be recognized.
Input Range
Input ON
Input OFF
Maximum 26.4V dc (24V dc +10%)
Minimum 6V dc
Maximum 3V dc
Minimum -26.4V dc
Input Current (typical) 3mA @ 6V dc
9mA @ 12V dc
15mA @ 24V dc
Module Location Mounts on Cat. No. 1794ĆTB2, TB3, ĆTB3S, and ĆTBN
Terminal Base Units
Isolation Voltage Tested at 500V dc for 1s
Flexbus Current 5mA @ 5V dc
Power Supply (external) 12-24V dc (+10%)
Current consumption from
external power supply
150mA @ 12V dc
75mA @ 24V dc
Power Dissipation 5W maximum @ 26.4V dc
Thermal Dissipation Maximum 17.1 BTU/hr @ 26.4V dc
Indicators (field side driven,
logic side indication)
1 green/red power/status indicator
8 yellow status indicators - logic side
Keyswitch Position 1
Dimensions Inches
(Millimeters)
1.8H x 3.7W x 2.1D
(45.7 x 94.0 x 53.3)
Environmental Conditions
Operating Temperature IEC 60068-2-1 (Test Ad, Operating Cold)
IEC 60068-2-2 (Test Bd, Operating Dry Heat)
IEC 60068-2-14 (Test Nb, Operating Thermal Shock)
32 to 131 ° F (0 to 55 ° C)
Note: Do not connect maximum input voltage
simultaneously to all inputs if the module ambient
temperature is expected to exceed 40 o C.
Storage Temperature IEC 60068-2-1 (Test Ab, Unpackaged, Nonoperating
Cold)
IEC 60068-2-2 (Test Bb, Unpackaged, Nonoperating Dry
Heat)
IEC 60068-2-14 (Test Na, Unpackaged, Nonoperating
Thermal Shock)
-40 to 185 ° F (-40 to 85 ° C)
Relative Humidity IEC 60068-2-30 (Test Db, Unpackaged, Nonoperating
Damp Heat)
5 to 95%, noncondensing
Specifications continued on next page.