23
9
EMS Connection
9.1 Interface Configuration
There are four pins on this port. However, only Pin 1 (Line) and Pin 4 (Neutral) are
worktable. Please use supplied cables to connect Pin 1 and Pin 4 shown as below
charts.
9.2 Function Description
When “Emergency power supply control” is enabled, EMS port will be active. Even
though battery voltage drops to cut-off AC output point, EMS port will remain
output power for emergent use.
This port is available to provide a power source (230V/5A) for emergent light and
load.
10
Generator connection
It is to connect to generator for power backup when utility is not available and
battery is connected. Inverter will trigger generator upon receiving signal from dry
contact during low battery. When generator is triggered, solar power will only charge
battery and overload protection will be automatically enabled.
24
Communication
10
The inverter is equipped with several communication ports and it is also equipped
with a slot for alternative communication interfaces in order to communicate with a
PC with corresponding software. This intelligent slot is suitable to install with SNMP
card and Modbus card. Follow below procedure to connect communication wiring
and install the software.
For RS232 port, you should use a
DB9 cable as follows:
For USB port, you should use a
USB cable as follows:
For Dry contact port, please
remove insulation sleeve 8 mm for
three conductors and insert three
cables into ports
For SNMP or MODBUS card, you
should use RJ45 cables as follows:
Please install monitoring software in your computer. Detailed information is listed in
the next chapter. After software is installed, you may initial the monitoring software
and extract data through communication port.
