SEP RSD Manuale utente
northernep.com
NEP RSD System Installation
Quick Guide
Rev. 8/9/23
“Quick Guide” to assist installer during installation.
Prerequisites include; NEP site design review, Formal online training
northernep.com
Summary of Steps
Part 2 –Gateway, Data, Connectivity
9. Connect to Internet
10. Scan Barcodes
11. Create Account
12. Build New NEPViewer Site
13. Commissioning and Mapping
Part 1 –Hardware
1. Mount PVG
2. Collect, Build S/N Sticker Map
3. Connect PVG to PV Modules
4. Mount Gateway Hardware
5. Connect Homeruns
6. Test String Voltages
7. Turn System On
8. Test System Voltages/RSD On/Off
Welcome to NEP!
If any questions, call NEP Hotline for Technical Support: 888-598-9901
northernep.com
Part 1 | Hardware
northernep.com
1: Mount PVG
Option 1: Frame Mount
●Carefully remove PVG from packaging. DO NOT pull on MC4 head leeds by
hand, carefully cut the zip ties without damaging wiring
●Attach module frame mount to PVG Mounting Bracket
●Friction fit the frame mount to the rear of the module frame
●A minimum 0.5 inch MUST be kept between any portion of PVG to the
backside of a PV panel, and label must face AWAY from module.
Press onto PV frameAttach clip Ensure air gap
northernep.com
1: Mount PVG
Option 2: Rack Mount
●Mount PVG to rail using standard rail mounting hardware available from the
racking supplier
northernep.com
2: Collect and Build S/N Sticker Map
●It is crucial to peel off the barcode from each PVG unit. Creat a sticker map showing
location and orientation of each module.
●This practice ensures accurate mapping of the system during the commissioning step.
Serial number stickers for
each PVG unit
northernep.com
3: Connect PVG to Modules
●PVGs must be connected to PV modules before connecting homeruns
●When there is an odd number of modules in a string, there must be a module
connected to “PV-1” and any other inputs must be shorted to itself as shown below
left.
●While plugging or unplugging PVGs in a system, DC switch on the inverter must be
turned off
Unused port
shall be shorted
PV-1 must be
connected to a PV
panel to power
the unit
northernep.com
4: Mount Gateway and Extra Hardware
Option 1: PVG-O
●Enclosure must be mounted within 10' of the string inverter, and each string inverter must
have its own dedicated PVG-M/O.
●Consider input voltage range (208Vac to 277Vac) when mounting PVG-M/O on the roof or
ground. Power should be supplied through "double lugging" the AC inputs in the string
inverter bottom cabinet or using a dedicated 2 or 3 pole breaker in the load center.
●Do not penetrate the enclosure top to avoid warranty voidance due to water intrusion.
●Some string inverters only require a 480V AC input without a neutral wire. In such cases, if the
string inverter is the only power source available for PVG-M/PVG-O, installation of a step-
down transformer (NEP part #NC0143-US) is necessary to lower the input voltage. This
application includes a PVG-M with a built-in transformer.
northernep.com
4: Mount Gateway and Extra Hardware
Option 1: PVG-O
northernep.com
4: Mount Gateway and Extra Hardware
Option 2: PVG-M
PVG-M Diagram with
Cellular Option
(if not wifi, or Ethernet)
Optional transformer
(if only 480Vac source to
Drop to 277Vac for
Gateway)
Indice
Altri manuali SEP Strumento di misura
