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  Appendix B - Controller Programming:  

Programming Interface Overview

The Programming interface is a Windows-based tool for making changes to the ROC software. This screen 

shows the RO settings available. There are 4 field-selectable sets of settings stored in the CPU-.4

Summary of Contents for NRO ROC-3HE

Page 1: ...Nelsen NRO ROC 3HE System Controller Documentation Systems with 3 hp Motors and Above...

Page 2: ...CPU 4 5 Controller Detail TB 6 6 Conductivity Probe Installation Figure 5 7 Controller Programming Accessing Hidden Menus Figure 6 8 System Start up w Permeate Flush 8 Controller Programming Program...

Page 3: ...y Ratings relays are fused with a 6A fuse Feed Solenoid 0 5A Voltage is the same as motor supply voltage Flush Solenoid 0 5A Voltage is the same as motor supply voltage Motor Contactor Coil 0 5A Volta...

Page 4: ...2 Figure 1 Simplified Schematic...

Page 5: ...3 Figure 1 1 Field Wiring Diagram...

Page 6: ...al Run Manual Flush Supply Power Connections Motor Connections Terminal Board CPU4 Board Conductivity Probe Connections Display 4 line 20 character Clear concise feedback on the RO s status Alarm Disp...

Page 7: ...5 Typical Configuration Figure 3 Controller Detail CPU 4 Typical Configuration...

Page 8: ...6 Figure 4 Controller Detail Terminal Board TB 1 See Fig 1 for schematic...

Page 9: ...ductivity Probe Installation Install the Conductivity Probe in the Run of a Tee or equivalent location Orient the probe so that air can not become trapped in the area near the probe F L O W FLOW Condu...

Page 10: ...m On Off button This will switch to the Hidden Menus as shown above 3 If not already on the RO Presets Program Press the Up or Down Arrows until you reach this screen 4 Once on the RO Presets Program...

Page 11: ...stop delay Seconds 1 1 1 1 Pump start retry interval restart delay after LP fault Seconds 60 60 60 60 Low pressure fault shutdown of faults Faults 5 5 5 5 Low pressure fault shutdown time period to c...

Page 12: ...ng against a closed suction as the pump spins down Low Inlet Pressure Behaviors Pump start retry interval restart delay after LP fault Seconds 60 When the inlet pressure switch opens the controller de...

Page 13: ...ts the duration of the Idle Flush 0 disabled Timed Manual Run Duration of Manual Run Minutes 5 Timed Manual Flush Duration of Manual Flush Minutes 5 Conductivity Probe Sample Rate Seconds 2 Conductivi...

Page 14: ...t If RO Not Working and Display Shows Tank Full or Tank Full Draw Down 1 If using a single point high level float switch the jumper in the wiring instructions must be installed This needs to be checke...

Page 15: ...ing Programming Interface Overview The Programming interface is a Windows based tool for making changes to the ROC software This screen shows the RO settings available There are 4 field selectable set...

Page 16: ...rvice 1 To obtain warranty service contact your selling dealer for a Return Material Authorization RMA 2 You will be required to provide a Your name and address b A description of the problem 3 Packag...

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