Carlo Gavazzi NRG Controllers

Carlo Gavazzi NRG Controllers are the devices in the NRG BUS chain. The NRG products interface directly with the main controller of the system through different communications. The series includes the NRGC I/O module, NRGC-PN controller, and NRGC-EIP controller variants. These NRG products are just a facilitator of the communication between the main controller and each individual RGxxN solid-state relay in the system. The devices operate at 24V_DCand come with LEDs on the front facade. These LEDs give a visual indication of the status of the NRG products of any ongoing communication. This communication is done with the Main Controller (COM), the RGxxN on the BUS chain (BUS), and an alarm condition related specifically to the NRG products.

NRGC I/O module interfaces directly with the main controller of the system through Modbus RTU on an RS485 interface. Each NRGC in the system is identified by a unique Modbus address. This unique Modbus address can be set either manually via a front selector switch or through dedicated registers. The default Modbus communication settings can also be modified via dedicated registers. This NRGC I/O module acts as a master of the respective NRG BUS chain when it is requested by the main controller. This main controller carries out actions on the specific NRG BUS chain.

NRGC-PN Controller interfaces directly with the main controller of the system through PROFINET communication. Each NRGC-PN in the system is identified by a unique MAC address that is printed on the facade of the product. The NRGC-PN controller is mainly a facilitator of the communication between the main controller and each individual RGxxN solid state relay in the system. This controller also performs internal operations to set up and maintain the internal bus.

NRGC-EIP Controller interfaces directly with the main controller of the system through EtherNet/IP communication. Each NRGC-EIP is identified by a unique MAC address which is printed on the facade of the product. The NRGC-EIP controller is mainly a facilitator of the communication between the main controller and each individual RGxxN solid state relay in the system. This controller also performs internal operations to set up and maintain the internal bus.

Typical applications include plastic machineries such as injection machines, extrusion machines, and PET blow molding machines, packaging machinery, sterilization machinery, and drying tunnels.

Features

Communication interface:
- The NRG controller bridges the field level devices to the control level to allow the exchange of data in real-time with the NRG solid-state relays
Reduced maintenance costs and downtime:
- Use of real-time data for prevention of machine stoppages during operation
Good quality products and low scrap rates:
- Real-time monitoring allows timely decisions for better machine and process management
Reduced efforts in troubleshooting:
- A number of faults can be distinguished to facilitate and reduce troubleshooting time

Fast installation and set-up:
- The solid-state relays on the BUS are configured by AutoConfiguration for fast set-up and prevention of incorrect settings (NRGC)
- Control, monitoring, and diagnostics all possible via the communication system (NRGC-PN and NRGC-EIP)
Compact dimensions:
- One controller with a product width of 35mm can handle up to 32 RGxxCMxN or 48 RGxxDxN NRG solid-state relays