Specifications, Input module specifications – Rockwell Automation 1798-IB8 FlexArmor 24V dc Sinking Input Modules User Manual

Page 7

FlexArmor 24V dc Sinking Input Modules 7

Publication 1798-IN001A-EN-P - January 2001

Specifications

Input Module Specifications

Specifications

1798-IB4

1798-IB8

Module Type

Digital Input, Sinking

Number of Channels

1 group of 4

1 group of 8

Sensor Source Current

400 mA maximum

On-state Voltage

10-28.8V dc; 24V dc nominal

On-state Current

2-12 mA; 8 mA @ 24V dc

Off-state Voltage

5V dc maximum

Off-State Current

1.5 mA minimum

Channel Impedance

4.6K

Ω

maximum

4.6K

Ω

maximum

Isolation Voltage

850V dc channel-to-system for 1s

Delay Times:

Off to On
On to Off

256 us, 512 us, 1 ms, 2ms
4 ms, 8 ms, 16 ms, 32 ms
(Selectable; 256 us default)

FlexBus Current

20 mA maximum

Power Dissipation

2.0W @ 28.8V dc

3.0W @ 28.8V dc

Thermal Dissipation

6.8 BTU/hr. @ 28.8V dc

10.2 BTU/hr. @ 28.8V dc

Indicators

4 channel status - yellow
4 fault LED indicators- red

8 channel status - yellow
8 fault LED indicators - red

External DC Power

Voltage (24V dc nom.)
Current

10-28.8V dc; 5% AC ripple
450 mA maximum

10-28.8V dc; 5% AC ripple
500 mA maximum

Dimensions
(H x D x W)

118 mm X 57 mm X 40 mm
4.63 in. X 2.25 in. x 1.58 in.

118 mm X 57 mm X 40 mm
4.63 in. X 2.25 in. X 1.58 in.

Environmental Conditions:

Operating Temperature
Storage Temperature
Shock: Operating
Non-Operating
Vibration

-20 to 60°C (-4 to 140°F)
-40 to 85°C (-40 to 185°F)
30G peak, 11±1 ms pulse width
50G peak, 11±1 ms pulse width
5G @ 10-500 Hz per IEC 68-2-6

Conductors

See publication DN-6.7.2

Enclosure

Meets IP67

Agency Certification
(When product is marked)

CUL listed
UL Hazardous Class 1, Division 2, Groups A, B, C, D certified
CE marked for all applicable directives

marked for all applicable acts

N223

This manual is related to the following products:

1798-IB4 FlexArmor 24V dc Sinking Input Modules