SolarVu AE 500NX Installation Manual

Site Preparation

SolarVu is an energy portal that enables remote monitoring of renewable
®
energy generation sites over the web.
K135 gateway which continuously transfers data from the inverter.
guide explains how to connect the K135 gateway to an AE 500NX inverter.
The AE 500NX has a Moxa communication module with multiple RJ45 jacks of
which only Port P3 is used for serial RS485. Be careful to plug into the correct
jack as shown in fig 2 as they all look similar but are for different purposes.
To access SolarVu from a browser, the inverter is connected to the internet
through a Cachelan K135 gateway using twisted pair wire, typically cat5e. An
RJ45 ethernet jack, connected to the LAN network and 120VAC outlet for the
gateway power dongle are required. The LAN must have high speed internet
service to an ISP to provide a gateway to the internet as shown in figure 1.

K135 Installation

Mount the SolarVu enclosure with conduit to the inverter for the RS485 serial
cable, ethernet cat5e cable and 120VAC control power. Normally this enclosure
will be in the same electrical room as the inverter, however, the RS485 serial
cable can run long distances, over 1000 feet, if necessary.
Power Supply: Temporarily unplug the K135 power dongle. Wire 120VAC
control power from a suitable 15A circuit to the internal receptacle and replace
the cover securing the dongle with the reusable cable tie suppled.
RS485 Serial: Consult the AE 500NX installation manual and fig 2 for location,
wiring and default ModBus RTU RS485 serial communications of slave address
22, 9600 baud. An adapter is provided for connecting RJ45 port 3 to terminals
to allow using twisted pair wire between the inverter and the K135 gateway.
Connect the other end of the twisted pair cable in the SolarVu enclosure to the
K135 gateway terminals as shown in fig 2. Shielded twisted pair wire is preferred
for noise immunity but standard Cat5e, 8 wire, UTP, #24 cable may also work.
Use a standard ethernet patch cable with RJ45 connectors of the appropriate
length to connect from the K135 to the network ethernet at a RJ45 wall jack or
the router/switch.
Fig 2 K135-AE inverter connections
RS232 - RS485
Converter
120ohm
Terminating
Resistor
Blue
Blue-White
Green
Optional shield
Use Cat5e Twisted pair cable or equivalent
© 2013 Copyright CACHELAN
SMART GRID ENERGY
SolarVu
It requires the installation of a
K135 Gateway
COMMUNICATION SETTINGS
(DEFAULT)
SERIAL COMMS
ADDRESS
BAUD
PARITY
DATA
STOP
FLOW
K135
RS232
1 2 3 4 5
6 7 8 9 Data
Direct Connection
from RJ45 Jack
-
3 DB9F to
4
Terminals
GND
Adapter
9/11
DB9F to RS485
D+ & D- twisted pair
cachelan.com contactus@cachelan.com
®
for AE 500NX Inverters

Installation Guide

Fig 1 Internet Connection
ROOFTOP SOLAR ARRAY
This
K135
GATEWAY
Ethernet
CABLE/DSL
MODEM
Make custom Cat5e cable
or use adapter supplied
View looking
into RJ45 connector
from plug side
568A 568B
22
9,600
none
8
1 RJ45 plug
Viewed from pin side
off
1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8
T-568A PLUG
Switch to
T-568B
DATA position
AE500NX
RS485 Terminals
SLAVE
D+ D-
GND
6
3 5
RJ45 Pins
Alternative connection using adapter
6 7 8 9
D-
RJ45 to TERMINALS
ADAPTER BOARD
All rights reserved
+
DC COMBINERS
DC
AE500NX INVERTER
SolarVu
Servers
LOCAL
ACCESS
CORPORATE
ETHERNET
LAN
FIREWALL
ROUTER
1
2
3
RJ45
4
JACK
5
6
7
8
T-568B PLUG
T-568B
GE770
Port 3
Modbus 485
120ohm
Terminating
3 GND
Resistor
5 Data+
6 Data-
RJ45
Plug
DB9M-RJ45
ADAPTER
Ethernet
S
Patch
Cable
SolarVu Installation Guide for AE 500NX Inverter
®
REMOTE BROWSER
ACCESS
INTERNET
ISP
GE796
MOXA Communication
Module Inside AE 500NX
x
x
x
x x
RJ45
x
Plug
485
1