Summary of Contents for PowerFlex nexus sense
- Page 1 Installation Guide Copyright © 2022 PowerFlex Systems, Inc. All Rights Reserved.
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Page 2: Getting Technical Assistance
The unauthorized use of any trademark displayed in this document or on the product is strictly prohibited. PowerFlex Nexus, Nexus Core, Nexus Sense, Nexus Remote, and PowerFlex X are trademarks of PowerFlex Systems, LLC. Zigbee is a registered trademark of ZigBee Alliance Corporation. -
Page 3: Table Of Contents
Record the power meter serial number Gather Nexus Sense information in the app Submit the site inspection form Step 4: Validation Verify end-to-end operation Locking the enclosure Installation checklist Troubleshooting/FAQ Appendix A: Technical Specifications Index Copyright © 2022-2024 PowerFlex Systems, LLC. All Rights Reserved. -
Page 4: Getting Started
Getting Started Welcome to the PowerFlex Nexus™ family of products PowerFlex Nexus™ is a proprietary hardware and software system enables real-time insights and intelligent control of onsite distributed energy resources (DERs). This flexible platform is designed to seamlessly integrate and adapt to energy demand, and provides the ability to integrate with solar... -
Page 5: An Overview Of Powerflex Nexus Sense
Power and energy metering data are collected via Nexus Sense™, which contains a revenue grade meter with support for multiple single-phase and/or three-phase loads. Nexus Sense can be configured to log power and energy data locally and in the cloud, so that you’ll have the data needed for reporting and tracking performance of your site’s assets. -
Page 6: An Ev-First Installation
The figure below shows a typical EV-first application where the Nexus Core is installed within the communications range of EV chargers: In this configuration, a Nexus Sense node is installed in the facility’s electrical room to monitor the main metering point for the local utility’s point of common coupling (PCC). -
Page 7: Battery Storage Installation
Battery storage installation For BESS installations, it is common for Nexus Core and Nexus Sense enclosures to be installed nearby. This is especially true if the BESS is adjacent to the point of common coupling (PCC) with the utility service. This configuration is shown on the left in the figure below:... -
Page 8: Setting Up Nexus Sense
Identify the tools necessary to bring onsite for the installation ▪ For most installations, getting a Nexus Sense installed and energized should only take a few hours and can be performed by one technician. However, the timeframe to complete an installation can vary due to elements outside of your control (ex: energization may require an electrical inspection). -
Page 9: Availability Of Services At The Site
The Nexus Sense incorporates a digital power meter that measures three-phase power. Nexus Sense connects the utility sub-panel or the building’s facility load to the Nexus Core to bring real-time information to PowerFlex’s cloud-based software. Nexus Sense requires a voltage reference from the bus of the collection panel, and current transformers (CT) on all assets being monitored. - Page 10 Unpack the cardboard box liner and remove the combination lock from the accessories package: The label on the inside front door of the enclosure (L) contains Nexus Sense model number and serial number information. In the enclosure (R), everything should be preassembled and firmly in place.
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Page 11: What You'll Need
Cat6 Ethernet wiring (if not installed in a conduit, it must be armored/outdoor rated cable) ▪ Depending on how the Nexus Sense will be installed, you may need one or more of the following: Hammer drill with appropriately sized bits ▪... -
Page 12: Step 2: Installation
▪ Mount the enclosure The Nexus Sense enclosure should be mounted to an upright surface at eye level. This provides easy access and servicing. Ideally, install the Nexus Sense at a location that isn’t subject to harsh weather conditions or exposure to direct sun. In locations where ambient temperatures are above 107°F, consider mounting the Nexus Sense in the shade to avoid overheating. -
Page 13: Connecting Power And Sensors In Conduits
PoE outlet on the Nexus Core switch on the network switch in Nexus Sense: (indicated by a lightning bolt ) to the PoE IN port of the Nexus Sense switch: Nexus Sense Nexus Sense Nexus Core Copyright © 2022-2024 PowerFlex Systems, LLC. All Rights Reserved. -
Page 14: Understanding The Power Meter
The Nexus Sense uses the eGauge EG4xxx series meters, which are capable of monitoring 7 and 15 single phase circuits respectively, or 5 and 10 three phase circuits respectively, and can accept voltages up to 277VAC L-N. -
Page 15: Connections To The Power Meter
Connect the voltage reference wire to the monitored bus/circuit. Installation notes: A voltage reference wire should be fed by an adequately protected circuit. (15A/20A circuit ▪ breakers and 12awg are common.) Copyright © 2022-2024 PowerFlex Systems, LLC. All Rights Reserved. - Page 16 3p3w without this additional equipment. Otherwise, the meter will be permanently damaged and unusable. Please see the diagram below, and contact site-support@powerflex.com to ask any questions on connecting to Nexus Sense. Voltage reference circuits must be in a separate conduit than CT leads or Ethernet cables. ▪...
- Page 17 A gentle tug-test can validate that the CT is securely latched. Connecting CT leads into the power meter Insert CT leads in the appropriate channels of the power meter. PowerFlex requires that CT leads should be connected to the power meter in the following order: 1.
- Page 18 Labelling CT leads It’s required to label all CT leads within the Nexus Sense enclosure where the CT leads are terminated into the meter. It is recommended to also label CTs at the CT itself, mainly to avoid confusion and incorrect installation.
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Page 19: Submit The Ct Schedule To Complete Commissioning
Each Nexus Sense is shipped with a CT Schedule form that must be completed (shown below): Once you fill out the form, it will be submitted during Nexus Sense Inspection in the FFF App. Copyright © 2022-2024 PowerFlex Systems, LLC. All Rights Reserved. -
Page 20: Energize Power To Nexus Sense
Once installation and due-diligence inspections have been completed, energize the 120VAC circuit. Indicators on the Ethernet switch should illuminate when connected correctly. If, on the other hand, Nexus Sense uses PoE input from the Nexus Core (and if both Nexus Sense and Nexus Core have been correctly installed): Energize the control power source on the Nexus Core to provide PoE to the Nexus Sense. -
Page 21: Step 3: Inspection
Step 3: Inspection To perform a Nexus Sense inspection, you will need to use the FFF app to do the following: Record the power meter serial number ▪ Gather Nexus Sense site information ▪ Submit the site inspection form to PowerFlex support ▪... -
Page 22: Record The Power Meter Serial Number
More comprehensive instructions on how to use the FFF app is described in “Step 3: Inspection” of the Nexus Core Installation Guide. Record the power meter serial number Take a picture of the serial number on the sticker on the power meter: Copyright © 2022-2024 PowerFlex Systems, LLC. All Rights Reserved. -
Page 23: Gather Nexus Sense Information In The App
Gather Nexus Sense information in the app As you enter in the information for your installation, by selecting Yes to Nexus Sense installed?, tapping Next at the bottom, brings up the Nexus Sense SubForm screen: The first set of fields require... - Page 24 How to use the form: To navigate through the form fields, To jump (or return) to the Nexus Sense subform at any enter in the information. Flick up (or time, tap Index at the bottom toolbar in the app and down) to view otherwise hidden fields.
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Page 25: Submit The Site Inspection Form
Submit the site inspection form Once Nexus Sense information has been collected in the site inspection form, tap the Submit button at the bottom of the app’s screen. If there are errors or missing elements, the app will display a warning message. -
Page 26: Step 4: Validation
Nexus Core and Nexus Sense are fully commissioned by PowerFlex support. Once the Nexus Sense has been installed, wired, energized, and has confirmed to be setup correctly, the installation will be ready for PowerFlex support personnel to run remote diagnostics. Please contact PowerFlex support (or your PowerFlex representative): e-mail: site-support@powerflex.com, phone: 833-4-PWRFLX... -
Page 27: Locking The Enclosure
Depending on the installation location, you might have a different warning label affixed on the enclosure (between the latches). To avoid any security issues or unauthorized access with the Nexus Sense, never leave the enclosure unlocked. Copyright © 2022-2024 PowerFlex Systems, LLC. All Rights Reserved. -
Page 28: Installation Checklist
Gather all the required tools before going onsite for the installation Step 2: Installation Install the Nexus Sense enclosure securely to a wall, Unistrut, or pedestal Attach power, CTs, Vrefs, and ground bond to the enclosure Ensure that Ethernet cables are properly connected to the switch and the power gauge ... -
Page 29: Troubleshooting/Faq
Nexus site installation information. Can I turn on EV chargers PowerFlex is not liable for the behavior of any unconfigured chargers. before completing Depending on the charger type, it may provide an unlimited, non- commissioning? managed free energy pre-configuration. -
Page 30: Appendix A: Technical Specifications
CEC listed FCC and UL-61010 compliant Network switch Communications Ports (1) GbE, 802.3af PoE RJ45 input Protocols Ethernet (4) GbE RJ45 ports Optional: WiFi PoE (optional dedicated PoE supply 120VAC power) Copyright © 2022-2024 PowerFlex Systems, LLC. All Rights Reserved. -
Page 31: Index
FAQ, 26 inspection step, 4, 18 validation step, 4, 23 installation step, 4, 9 voltage reference, 11, 12 Internet of Things (IoT), 1 weather conditions, 9 job hazard assessment (JHA), 6 Copyright © 2022-2024 PowerFlex Systems, LLC. All Rights Reserved.
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