Specifications; Output Modules; Input Modules - Rockwell Automation Allen-Bradley 1794-OB8EPXT Installation Instructions Manual

Specifications

Output Modules

Attribute
Number of outputs, non-isolated, sourcing 8 (1 group of 8)
Module location
On-state current
On-state voltage range, min
On-state voltage range, nom
On-state voltage range, max
Supply voltage, nom
Voltage range
Supply current
Output current rating
Surge current
Off-state leakage, max
On-state voltage drop, max
Isolation voltage
Output signal delay, max
Off to On
On to Off
Flexbus current
Power dissipation, max
Thermal dissipation, max
Indicators
(field side indication, logic driven)
Fusing
(1) Fusing is recommended. If fusing is desired, you must supply external fusing. Use SAN-O MQ4-3A or Litteolfuse 235-003 fuses.

Input Modules

Attribute 1794-IB10XOB6XT
Number of inputs 10, nonisolated, sinking
Module location 1794-TB2, 1794-TB3, 1794-TB3S
On-state current, min 2.0 mA
On-state current, nom 8.0 mA @ 24V DC
On-state current, max 11.0 mA
On-state voltage range, min 10 V DC
On-state voltage range, nom 24 V DC
On-state voltage range, max 31.2 V DC
Supply voltage, nom 24V DC
Voltage range 10...31.2 V DC (includes 5% AC ripple)
15 mA @ 19.2 V DC
19 mA @ 24 V DC
Supply current
8 mA @ 10V DC
25 mA @ 31.2V DC
Off-state voltage, max 5.0 V DC
Off-state current, min 1.5 mA
Input impedance 4.8 KΩ
50V (continuous), Basic Insulation Type
Isolation voltage No isolation between individual channels
Type tested at 1365V AC for 60 s, between field side and system
Flexbus current 50 mA
1794-OB8EPXT
1794-TB2, 1794-TB3, 1794-TB3S, 1794-TBN
1.0 mA min, per channel
2.0 A max, per channel
19.2 V DC
24 V DC
31.2 V DC
24V DC
19.2V DC...31.2V DC
55 mA @ 24V DC
2.0 A, max, per output
10.0 A max, per module
(for example, 8 outputs @ 1.25 A, 5 outputs @
2.0 A, or similar combinations totaling 10.0 A or
less)
4.0 A for 10 ms, repeatable every 3 s
0.5 mA
0.2 V DC
50V (continuous), Basic Insulation Type
No isolation between individual channels
Type tested at 1500V AC for 60 s, between field side
and system
0.5 ms
1.0 ms
80 mA
5 W @ 31.2 V DC
17.1 BTU/hr @ 31.2 V DC
8 yellow status indicators
8 red fault indicators
Outputs are electronically fused
Rockwell Automation Publication 1794-IN124B-EN-P - July 2022
FLEX I/O-XT Digital DC Input/Output Modules Installation Instructions
1794-OB16PXT
16
1794-TB2, 1794-TB3, 1794-TB3S
1.0 mA min, per channel
500 mA max, per channel
10 V DC
24 V DC
31.2 V DC
10V DC...31.2V DC
35 mA @ 24V DC
8.0 A (16 outputs @ 0.5A)
1.5 A for 50 ms, repeatable every 2 s
0.5 V DC
50V (continuous), Basic Insulation Type
No isolation between individual channels
Type tested at 2550V DC for 60 s, between field
side and system
60 mA
5.0 W @ 31.2 V DC
17.0 BTU/hr @ 31.2 V DC
16 yellow status indicators
Outputs are electronically protected
1794-IB16XT
16 (1 group of 16), nonisolated, sinking
1794-TB3, 1794-TB3S Terminal Base Unit
2.0 mA
3.0 mA @ 24V DC
4.0 mA
24V DC
10V DC...31.2V DC
50 mA @ 24V DC
50V (continuous), Basic Insulation Type
No isolation between individual channels
Type tested at 850V AC for 60 s, between field side and system
30 mA
1794-IB10XOB6XT
6
2.0 A max, per channel
10 V DC
24 V DC
31.2 V DC
10...31.2 V DC (includes 5% AC ripple)
15 mA @ 19.2 V DC
19 mA @ 24 V DC
8 mA @ 10V DC
25 mA @ 31.2V DC
2.0 A per output
10.0 A max, per module
4.0 A for 50 ms, repeatable every 2 s
1.0 V DC @2 A,
0.5 V DC @1 A
50V (continuous), Basic Insulation Type
No isolation between individual channels
Type tested at 1365V AC for 60 s, between field side
and system
50 mA
6.0 W @ 31.2 V DC
20.3 BTU/hr @ 31.2 V DC
6 yellow status indicators
(1)
Module outputs are not fused.
11