INVT 4KW User manual

operators cannot release the device until the inverter is installed on
the bracket firmly.
(4)Fasten the screws.
Figure 4 Installation of inverter
❹
Electrical installation
Figure 5 Electrical wiring of the inverter
Figure 6 Connection of the AC side and the inverter
Below are the electrical wiring steps of the three-phase inverter:
(1) Before connecting the three-phase AC grid cable to the inverter,
take lightning and short circuit protection measures in accordance
with the local electrical safety codes;
(2) As shown in Figure 6, connect and fastenL1、L2、L3、N (optional)
and PE conductors of the three-phase common grid to AC terminal,
and then connect the terminal to the AC port of the inverter;
(3) Fix and connect the DC output cables of PV board with the
matched DC connectors, and then connect the connectors to the DC
port of the inverter.
❺
Operation
5.1 Inspection before operation
Check as follows before operation:
(1) Detect the voltage of the components is in the allowable input
voltage range of the inverter;
(2) Detect the voltage of the AC port at AC side is normal;
(3) Check the inverter is in good grounding;
(4) Ensure all switches are “off”;
(5) Ensure all electrical safety precautions are clearly-identified on
the installation site.
(6) Confirm the handheld keypad or communication module is in
correct connection.
5.2 Grid-tied operation
Please start the inverter as follows:
(1) Switch on the integrated DC switch;
(2) Use the handheld keypad or communication module to set the
time, date and area of the inverter;
(3) Switch on the breakers at the AC side;
(4) Observe the LED indicators and information displayed on the
LCD screen.
Run
Green indicator blinks, others off: the inverter is power
on and in self-inspection;
Run
Green indicator on, others off: the inverter is in power
generation after self-inspection----successful commissioning.
“Warn” or “Fault” indicators are on or blinking: the inverter is
power on, but fault occurs.
5.3 Accessories and wiring
The accessories are the handheld terminal, WiFi, ENET and GPRS.
RS485
32
14
32
14
-M
RS485-S
Connect the 485 port of accessories to the RS485-M(4-10kW) or
RS485(12-40kW) port of the inverter; for the ACF inverter,
RS485-M(4-10kW) or RS485(12-40kW) is to the upper PC and
RS485-S(4-10kW) or EXT(12-40kW) is to the ammeter.
5.4 Regular maintenance
Stop the inverter as follows it needs maintenance, inspection and
troubleshooting:
(1) Switch off the breakers at the AC side;
(2) Switch off the integrated DC switch;
(3) Contact with customer service staff or local dealers.

INVT 6-17kW
Series
PV Grid-tied Inverter
Quick Installation Guide
Only qualified electricians are allowed to install the
inverter.
Do not put and install the inverter on or close to
combustible materials.
Install the inverter away from electronic devices with
strong electromagnetic interference.
Keep the installation site away from children and
other public places.
Remove the metal jewelry such as ring and bracelet
before installation and electrical connection to avoid
electric shock.
The inverter input voltage does not exceed the
maximum input voltage; otherwise inverter damage
may occur.
The positive and negative pole of solar modules can
not be grounded, otherwise irrecoverable damage
may occur.
Ensure the proper grounding of the inverter,
otherwise, improper connection or no grounding may
cause stop of the inverter.
Ensure reliable installation and electrical connection.
❶
Unpacking inspection
Inspect the information of the order and the name plate to ensure the
product are the ordered one and no damage to the package. If any
problem, contact the supplier as soon as possible.
Table 1 Packing list of three-phase inverter:
Models 6kW/7kW/
8kW/9kW
10kW 12kW 15kW 17kW
Inverter 1
Installation bracket 1
Quick installation guide 1
Communication
connector
1
Expansion bolt 6(M8*60)
Hex bolt M8*20 6
Hex bolt M6*16 2
DC connector 4 6 8
AC connector 1
Hole template 1
❷
Before installation
2.1 Installation place
Select installation place based on the following considerations:
Figure 1 Installation space(mm)
(1) The environment temperature is between -25℃~60℃.
(2) The installation surface should be perpendicular to the horizontal
line. Refer to Figure 2.
Figure 2 Installation position
2.2 Cable specifications
The user can select connection cable according the table below:
Table 2 Cable specifications
Models
DC side AC side
Cross-section
mm²
(length≤50m)
Cross-section
mm²
(length >50m)
Cross-section
mm²
(length≤50m)
LN/PE
6kW/7kW/
8kW /9kW /
4 6 6 4
10kW /12kW /
15kW/17kW
4 6 10 4
❸
Mechanical installation
Take the typical installation environment as the example, the manual
describes how to install the inverter on concrete wall. .
Figure 3 Installation bracket of the inverter
Table 3 Size of installation bracket
Model Installation hole
A(mm)
×
B(mm)
6kW / 7kW / 8kW /9kW /
10kW /12kW / 15kW/17kW
400×400
Installation steps of three-phase inverter:
(1) Locate the installation hole with the installation bracket, and then
use expansion bolts to fix the installation bracket at the proper
location of the walls;

(2) Lift the inverter to suspend it on the installation bracket through
M8 hex socket cap screws;
(3) Finally, fix the inverter with the bracket. For firm installation, the
operators cannot release the device until the inverter is installed on
the bracket firmly.
(4)Fasten the screws.
Figure 4 Installation of inverter
❹
Electrical installation
Figure 5 Electrical wiring of the inverter
OR
Figure 6 Connection of the AC side and the inverter
Below are the electrical wiring steps of the three-phase inverter:
(1) Before connecting the three-phase AC grid cable to the inverter,
take lightning and short circuit protection measures in accordance
with the local electrical safety codes;
(2) As shown in Figure 6, connect and fastenL1、L2、L3、N (optional)
and PE conductors of the three-phase common grid to AC terminal,
and then connect the terminal to the AC port of the inverter;
(3) Fix and connect the DC output cables of PV board with the
matched DC connectors, and then connect the connectors to the DC
port of the inverter.
❺
Operation
5.1 Inspection before operation
Check as follows before operation:
(1) Detect the voltage of the components is in the allowable input
voltage range of the inverter;
(2) Detect the voltage of the AC port at AC side is normal;
(3) Check the inverter is in good grounding;
(4) Ensure all switches are “off”;
(5) Ensure all electrical safety precautions are clearly-identified on
the installation site.
(6) Confirm the handheld keypad or communication module is in
correct connection.
5.2 Grid-tied operation
Please start the inverter as follows:
(1) Switch on the integrated DC switch;
(2) Use the handheld keypad or communication module to set the
time, date and area of the inverter;
(3) Switch on the breakers at the AC side;
(4) Observe the LED indicators and information displayed on the
LCD screen.
Run
Green indicator blinks, others off: the inverter is power
on and in self-inspection;
Run
Green indicator on, others off: the inverter is in power
generation after self-inspection----successful commissioning.
“Warn” or “Fault” indicators are on or blinking: the inverter is
power on, but fault occurs.
5.3 Accessories and wiring
The accessories are the handheld terminal, WiFi, ENET and GPRS.
RS485
32
14
32
14
-M
RS485-S
Connect the 485 port of accessories to the RS485-M(4-10kW) or
RS485(12-40kW) port of the inverter; for the ACF inverter,
RS485-M(4-10kW) or RS485(12-40kW) is to the upper PC and
RS485-S(4-10kW) or EXT(12-40kW) is to the ammeter.
5.4 Regular maintenance
Stop the inverter as follows it needs maintenance, inspection and
troubleshooting:
(1) Switch off the breakers at the AC side;
(2) Switch off the integrated DC switch;
(3) Contact with customer service staff or local dealers.