Allen-Bradley 1794-OB16P Made in USA/Singapore

Description

Allen-Bradley 1794-OB16P

The Allen-Bradley 1794-OB16P is a Flex I/O module that functions as a Discrete output module. This module is used to energize electrical components that operate in 24VDC voltage categories such as indicator lights and lamps, solenoid actuated devices, relay coils, and other field instruments.

The Allen-Bradley 1794-OB16P has Sixteen (16) electronically fused output channels, supporting source wiring configuration. Each channel has a minimum output rating of 1.0 mA and a maximum of 500 mA per channel. Each channel is capable of withstanding a surge current of 2 A for 50 ms, repeatable for every 2 seconds. It requires a FlexBus current of 60 mA @ 5V DC with a maximum power dissipation of 5.0 W @ 31.2V DC and thermal dissipation of 17.0 BTU/hr @ 31.2V DC.

This module requires a terminal base for installation. The terminal base provides DIN rail attachment and I/O termination points. Compatible terminal bases are 1794-TB2,1794-TB3,1794-TB3S, 1794-TB3K, 1794-TB3SK.

Communication:

The 1794-OB16P is compatible with Flex I/O communication adapters such as Ethernet, ControlNet, Profibus, and Remote I/O communication adapters. It may also be mixed with any type of Flex I/O modules to implement distributed I/O architecture and implement manual and automatic control of machines and processes. It can operate as a distributed I/O component of Logix controllers such as ControlLogix and CompactLogix as well as legacy controllers including PLC5 and SLC500 controllers. The configuration of the 1794-OB16P module depends on the controller used.

The Allen-Bradley 1794-OB16P is compatible with communication adapters including ControlNet, DeviceNet, PROFIBUS, and EtherNet/IP.
It requires an external DC supply voltage range of 10 to 31.2 Volts DC, with a 5% AC ripple and an external DC supply current range of 25 to 75 mA. The module’s ON-state output voltage drop is 0.5 Volts DC. The minimum current on-state output is 1 mA per channel and the maximum is 500 mA per channel or 8 Amps per module. This module also has a leakage current of 0.5 mA for off-state output and a maximum output surge current of 1.5 Amps for 50 milliseconds that is repeatable every 2 seconds. This module does not have any isolation between the individual channels.

Output:

The Allen-Bradley 1794-OB16P’s output delay is 0.5 milliseconds in the OFF to ON state and 1 milliseconds in the ON to OFF state. The maximum power dissipation is 5 W at 31.2 Volts DC, the thermal dissipation is 17 BTU/hour at 31.2 Volts DC, and the maximum Flexbus current is 60 mA. The 1794-OB16P module has an operating temperature of 0 to 55 degrees Celsius and a storage temperature of -40 to 85 degrees Celsius and comes with a non-condensing relative humidity of 5 to 95%. It also has an operating vibration of 30g and a non-operating vibration of 50g. Its vibration is 5 g at 10 to 500 Hertz.

Technical Specifications for 1794-OB16P

FAQ for 1794-OB16P

What is the recommended terminal base unit for 1794-OB16P FLEX I/O Output Modules?

The recommended terminal base units for 1794-OB16P FLEX I/O Output Modules are the following: 1794-TB2, 1794-TB3, 1794-TB3S,1794-TB3K, and 1794-TB3SK.

Is a 1794-OB16P FLEX I/O Output Module fused?

No, 1794-OB16P is not factory fused. Fusing is recommended. If operators fuse 1794-OB16P, external fusing must be provided using SAN-O MQ4 800mA fuses.

How many output channels does the 1794-OB16P have?

The 1794-OB16P has Sixteen (16) 24VDC sourcing output channels.

What does “P” in the catalog number depict?

The “P” in the catalog number pertains to the electronic fusing embedded with the module. Each channel has embedded electronic fusing.

What is the output voltage of the 1794-OB16P?

The nominal output voltage of the 1794-OB16P is 24VDC

SIEMENS 6ES5421-8MA12