16 FLEX I/O Digital DC Output Modules
Publication 1794-IN094D-EN-P - July 2018
Specifications
Specifications – 1794-OB8
Attribute Value
Number of outputs 8, current, sourcing
Recommended terminal base unit 1794-TB2, 1794-TB3, 1794-TB3S,1794-TB3K, 1794-TB3SK
On-state voltage, output min 10V DC
On-state voltage, output nom 24V DC
On-state voltage, output max 31.2V DC
Output current rating 4 A (8 outputs @ 0.5 A)
On-state current, output, min 1.0 mA per channel
On-state current, output, max 500 mA per channel
On-state voltage drop, max 0.5V DC
Surge current 2 A for 50 ms, repeatable every 2 seconds
Off-state leakage current, max 0.5 mA
Isolation voltage 50V (continuous), Basic Insulation Type
Tested at 850V DC for 1 s, between user and system
No isolation between individual channels
Output signal delay
(1)
Off to On
On to Off
(1)
Delay time is the time from the receipt of an output on or off command to the output actually turning on or off.
0.5 ms
1.0 ms
FlexBus current 60 mA @ 5V DC
Power dissipation, max 3.3 W @ 31.2V DC
Thermal dissipation, max 11.2 BTU/hr @ 31.2V DC
Fusing Module outputs are not fused. Fusing is recommended. If fusing
is desired, you must provide external fusing. Use SAN-O
MQ4-800mA fuses.
Specifications – 1794-OB8EP
Attribute Value
Number of outputs 8, current, sourcing
Recommended terminal base unit 1794-TB2, 1794-TB3, 1794-TB3S, 1794-TBN, 1794-TB3K,
1794-TB3SK, 1794-TBNK
On-state voltage, output min 19.2V DC
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