100% Employee Owned, Founded 1954

100% Employee Owned, Founded 1954

100% Employee Owned, Founded 1954

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

Greg Haley | May 3rd, 2018

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 below for a list of the I/O modules that require a PF power module.

Table 1: List of 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.

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