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Allen Bradley 1756-OB8 Output Module for ControlLogix Systems

Model: 1756-OB8
Brand: Allen Bradley(AB)
Voltage: 24 VDC
Current: 2 A
Load: Resistive, inductive, and capacitive
Dimensions: 127 x 95 x 60 mm (5 x 3.7 x 2.4 in.)
Weight: 0.25 kg (0.55 lb.)

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The Allen Bradley 1756-OB8 is a 24 VDC, 2 A sourcing output module that is designed to be used with the ControlLogix family of PLCs. It has eight discrete outputs that can be used to control a variety of devices, such as motors, solenoids, and relays.

Features

  • 8 discrete outputs
  • 24 VDC, 2 A sourcing output
  • Resistive, inductive, and capacitive loads
  • LED indicators for each output
  • Screw terminal connectors
  • DIN rail mounting

Applications

The Allen Bradley 1756-OB8 can be used in a variety of applications, such as:

  • Machine control
  • Process control
  • Building automation
  • Data acquisition
  • Test and measurement

Specifications

The Allen Bradley 1756-OB8 is a digital output module that provides eight individually isolated outputs. Here are some of the key specifications parameters for this product:

Specification Value
Backplane current 800 mA at 5V DC, 3 mA at 24V DC
Operating voltage range 10-31.2V DC
Nominal output voltage 24V DC
Output voltage range 10-31.2V DC
Maximum output current per point 2A
Total module output current 8A
Inrush current per point 5A for 10 ms
Output off-state leakage current 1 mA maximum at 24V DC
Output on-state voltage drop 1V maximum at 2A
Response time 0.3 ms maximum on-to-off, 0.8 ms maximum off-to-on
Isolation voltage 50V continuous, 710V peak
Operating temperature range 0°C to 60°C (32°F to 140°F)
Storage temperature range -40°C to 85°C (-40°F to 185°F)
Shock resistance 30g operational, 50g non-operational
Vibration resistance 2g operational, 5g non-operational

The Allen Bradley 1756-OB8 is a high-performance digital output module that is ideal for use in a range of industrial applications. With its individually isolated outputs and high output current per point, it can be used to control a wide range of devices. Its fast response time, low on-state voltage drop, and high isolation voltage make it a reliable and efficient choice for any automation project. Its rugged design and resistance to shock and vibration ensure that it can withstand harsh industrial environments. Overall, the 1756-OB8 is a powerful and versatile solution for digital output control.

Warranty

The Allen Bradley 1756-OB8 is backed by a five-year warranty.

Conclusion

The Allen Bradley 1756-OB8 is a versatile and reliable output module that is well-suited for a variety of industrial applications. It is easy to install and use, and it is backed by a five-year warranty.

Q: What is the Allen Bradley 1756-OB8?

A: The Allen Bradley 1756-OB8 is a digital output module that provides eight individually isolated outputs.

Q: What are the features of the Allen Bradley 1756-OB8?

A: The Allen Bradley 1756-OB8 has a number of features that make it a good choice for a variety of industrial applications. These features include:

  • Eight individually isolated outputs
  • 24 VDC, 2 A sourcing output
  • Resistive, inductive, and capacitive loads
  • LED indicators for each output
  • Screw terminal connectors
  • DIN rail mounting

Q: What are the applications of the Allen Bradley 1756-OB8?

A: The Allen Bradley 1756-OB8 can be used in a variety of applications, such as:

  • Machine control
  • Process control
  • Building automation
  • Data acquisition
  • Test and measurement

Q: Where can I buy the Allen Bradley 1756-OB8?

A: The Allen Bradley 1756-OB8 is available from a variety of distributors. You can find a list of distributors on the Allen Bradley website.

Q: What is the warranty for the Allen Bradley 1756-OB8?

A: The Allen Bradley 1756-OB8 is backed by a five-year warranty.

Q: How do I install the Allen Bradley 1756-OB8?

A: To install the Allen Bradley 1756-OB8, follow these steps:

  1. Mount the module in a DIN rail.
  2. Connect the module to the PLC using the provided cables.
  3. Configure the module using the PLC’s software.

Q: How do I use the Allen Bradley 1756-OB8?

A: To use the Allen Bradley 1756-OB8, follow these steps:

  1. Configure the module using the PLC’s software.
  2. Write a program that uses the module to control devices.
  3. Upload the program to the PLC.
  4. Start the PLC.

Q: What are some common problems with the Allen Bradley 1756-OB8?

A: Some common problems with the Allen Bradley 1756-OB8 include:

  • The module does not power on.
  • The module does not communicate with the PLC.
  • The module’s outputs are not working properly.

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