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What is an Omron NX Power Module and Do You Need One?

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One of the big benefits of using a PLC from the Omron NX1P PLC family is the ability to add I/O modules directly to the side of PLC. This allows machine builders to customize the PLC I/O for their specific application and to only pay for the specific I/O they need.

When I/O modules are added to the NX1P PLC, there are 3 different ways the module can be powered:

  1. The I/O module gets power through the NX bus.
  2. Power is supplied to the units via an external power supply.
  3. The I/O module does not use the power or when the unit generates the power internally.

Any module that uses option 1 will require an additional I/O power supply unit. This is commonly overlooked and we constantly see a failure to order the required power module(s). See Table 1 here for a list of the I/O modules that require a PF power module.

When it comes to selecting an NX-PF module, there are a few options to choose from. It is necessary to select the correct module or modules (some application require more than one) based on the amount of power required.The list of NX-PF modules can be found here.

For information about the Omron NX1P PLC family and implementing an NX-PF module into your project, contact a Cross automation expert! As a distributor for Omron our robotics and machine automation group has worked with customers implementing solutions into a range of applications. 

What is an Omron NX Power Module and Do You Need One? 1
Table 1: List of I/O Modules that Require a PF Power module

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Did you know… Cross Company is an ESOP (Employee Stock Ownership Plan). Our ESOP started in 1979 and as of 2006, we are 100% employee-owned! Learn more about our ESOP and how that benefits both team members and our customers.
Did you know... the precision measurement group at Cross was founded in 1939 by our current CEO's grandfather, Jim King. That's a whole lot of calibration!
Did you know... A fingerprint weighs about 50 micrograms. We know, we weighed it! The residue left from a finger can actually make a difference in weight results which is why we wear gloves when we calibrate weights. For reference, a sheet of paper is about 4.5 grams, that’s 4.5 million micrograms.
Did you know… Cross Company has grown significantly since our start in 1954. Over the years we've acquired 26 companies! Today, our five groups have expertise in everything from industrial automation to precision measurement, and industry knowledge going all the way back to 1939.