
2 |nVent.com
Contents
Section I – Overview ................................................................................................................................. 3
1.1 Introduction.............................................................................................................................. 3
Section 2 – Installation and Wiring ........................................................................................................... 4
2.1 Introduction.............................................................................................................................. 4
2.2 Initial Inspection ...................................................................................................................... 4
2.3 Operating Environment ........................................................................................................... 4
2.4 Installation Location................................................................................................................ 5
2.5 Mounting Procedures.............................................................................................................. 5
2.6 Wiring Procedures ................................................................................................................... 5
2.6.1 Incoming Power With Distribution System................................................................... 5
2.6.2 Outgoing Power With Distribution System ................................................................... 6
2.6.3 Incoming/Outgoing Power Without Distribution Panel Board .................................... 6
2.6.4 Incoming Rtd Wiring....................................................................................................... 7
2.6.5 Connecting The RS-485 Device Network...................................................................... 7
2.7 Connections for Remote Annunciation — NGC-UIT2-EX..................................................... 12
2.8 RS-232, RS-485, or Ethernet Remote Port Connections to a Host Computer.................... 13
2.8.1 RS-232 Serial Connections.......................................................................................... 13
2.8.2 RS-485 Serial Connections.......................................................................................... 13
2.8.3 Ethernet Connections................................................................................................... 14
2.9 Testing the NGC-30 System.................................................................................................. 14
Section 3 – nVent RAYCHEM NGC-30 Components and Operation........................................................ 15
3.1 User Interface Terminal (NGC-UIT2)..................................................................................... 15
3.1.1 Multiple Ngc-Uit2 Models ............................................................................................ 15
3.1.2 Ngc-Uit2 Local And Remote Network Connections ................................................... 16
3.1.3 RS-485 Conguration Switches .................................................................................. 17
3.1.4 Ngc-Uit2-Ex Reset Switch ............................................................................................ 17
3.2 Card Rack Module (NGC-30-CRM/-CRMS) and
Current Transformer Module (NGC-30-CTM)........................................................................ 18
3.3 Card Rack (NGC-30-CR) ........................................................................................................ 19
3.4 Voltage Monitoring Module (NGC-30-CVM) – Optional ..................................................... 19
3.5 Remote Monitoring Module (RMM2) – Optional................................................................. 20
3.6 Power Line Carrier Interface Module (PLI) – Optional........................................................ 21
3.7 The Remote Monitoring Module for Digital Inputs (RMM-DI)............................................. 22
Section 4 – Appendices .......................................................................................................................... 23
Appendix A – Replacement Component Ordering Guide.......................................................... 23
Appendix B – Panel Specications............................................................................................. 24
Appendix C – NGC-30-CRM/-CRMS Specications................................................................... 27
Appendix D – NGC-UIT2 Specications ..................................................................................... 28
Appendix E – Device Address..................................................................................................... 29
Appendix F – RAYCHEM RMM-DI Technical Specication ....................................................... 30