NRG The solid state relay solution with real-time monitoring through Modbus Benefits Fieldbus interface. Solid state relay parameters and diagnostic data are accessible through Modbus RTU over an RS485 interface. 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 processes management. Reduced efforts in troubleshooting. A number of faults can be distinguished to facilitiate and reduce troubleshooting time. Versatile. Easy integration in existing machines as the control of the solid state relay does not change compared to a solid state relay without a communication interface. Fast installation and set-up. The solid state relays on Description the BUS are configured by AutoConfiguration for fast set- up and prevention of incorrect settings. The NRG is a system consisting of one or more BUS Compact dimensions. Adopts the same compact chains that communicate with the main controller in platform of the slimline RG series with a minimum product the machine through Modbus RTU over an RS485 width of 17.8mm, 1x DIN, up to 37 AAC 40C. interface. The communication interface in the NRG system allows read out of variables such as voltage, current, frequency, energy consumption and power of the solid state relays RG..N in real time. The status of the components in the NRG system is readable with an identification of the specific fault to faciliate troubleshooting. The NRG system is very flexible and allows the user to modify default limits to adapt to the own specific needs. The RG..N solid state relays in the NRG are suitable for switching of heater loads and their switching is controlled by a DC voltage in the range of 4-32 VDC. In case of a malfunction of the communication interface, the RG..N switching function is not affected. The switching function is solely dictated by the presence of the control voltage. Applications Any heating application where reliable and precise maintenance of temperatures is crucial to the quality of the end product. Typical applications include plastic machinery such as injection machines, extrusion machines and PET blow moulding machines, packaging machinery, sterilisation machinery, drying tunnels and semiconductor manufacturing equipment. Main function 1-phase AC zero cross solid state relays up to 660 VAC, 90 AAC 4-32 VDC control for switching of the solid state relay Modbus RS485 interface for real-time monitoring 31/01/2019 NRG DS ENG Carlo Gavazzi Carlo Gavazzi Ltd.Automation S.p.A. 1NRG The NRG system overview 24VDC REF signal 12 N / L2 11 14 RG..N NRGC BUS chain 1 Bus chain 1 PLC or ModBus RTU (Max. 32 RG..Ns) main controller (Max. 48 RG..Ns) RGN-TERMRES A2 - Internal BUS A1 + 24VDC 12 REF signal 11 N / L2 14 BUS chain 2 Bus chain 1 Termination resistor (Max. 32 RG..Ns) or another BUS chain A2 - Internal BUS A1 + Description The NRG system may consist from 1 up to a maximum of 247 BUS chains. Each BUS chain consists of 1 NRG controller, the NRGC and a maximum of 48 RG..N solid state relays. The main controller in the machine uses Modbus RTU to communicate with the respective BUS chains. Each NRGC in the system needs to be assigned a Modbus ID and hence the limitation of 247 NRGCs in the system. The NRGC acts as a master of the respective BUS chain when it is requested by the main controller to carry out specific actions on the BUS chain, for example when an AutoConfiguration needs to be exectuted to automaticaly assign a valid ID to each RG..N on the BUS. Otherwise, the NRGC is just a facilitator of the communication between the main controller and each individual RG..N solid state relay in the system. The RG..N solid state relays are physically linked to the NRGC through an internal BUS using proprietary cables RCRGN-xxx-2 available at various lengths. Each RG..N in the NRG system needs to be uniquely identified for the main controller to be able to access its data. Great time savings are achieved since there is no need to physically set the ID of each individual RG..N in the system. Through an Autoconfiguration command each RG..N is assigned a unique ID based on its physical location on the BUS and the NRGC ID to which it is connected. NRG system required components Description Component code Notes Solid state relays RG..N NRG solid state relays NRGC controller NRGC NRG controller with Modbus RS485.1x NRGC is required for every bus chain (max 48 RG..Ns) 1x RGN-TERMRES is included in the NRGC packaging. The RGN-TERMRES is to be mounted on the last RG..N on the bus chain. NRG internal BUS RCRGN-xxx Proprietary cables terminated at both ends with a micro USB connector cables 31/01/2019 NRG DS ENG Carlo Gavazzi Carlo Gavazzi Ltd.Automation S.p.A. 2