AEC Selfnergy Series User manual

Allis Electric Co., Ltd.
Installation Manual
Sin gle-Phase Hybrid
Photovoltaic Inverter
SELFNERGY -Hybrid Series

All specifications are subject to change without prior notice.Ver. 2.0

These applied symbols are important for human safety. Violat ion of
warnings may result in injury to persons or cause death.
WARNING
！
RISK OF ELECTRIC SHOCK
WARNING
！
RISK OF ELECTRIC SHOCK, ENERGY STORAGE TIMED
DISCHARGE
WARNING
！
RISK OF DAN GER
WARNING
！
HOT SURFACE
REFER TO THIS OPERATIONAL MANUAL
THIS MANUAL IS COPYRIGHT PROTECTED.
Copyright©2014 SELFNERGY-series Products. All rights
reserved by ALL I S Elect ronic Co.,
Ltd. Unless otherwise
specified, no part of this manual
may be reproduced or
utilized in any form or by any means, including electronic,
mechanical or photocopying, without permission in writing
from either Allis or Allis's legal representative.

Safety Notes
General Cautions
！
Read and follow all instructions in this manual. Failure to comply with
the warnings in this manual may violate safety standards. The
manufacturer assumes no liability for the customer’s failure to
comply with these requirements.
！
Installation of the device must be in accordance with the relevant
safety regulations. Correct grounding and over-current protection
must be provided to ensure operational safety.
！
Pay attention to the high temperature components and sharp edges.
The temperature of the heat sinks on the outside of the device can
reach over 70°C in normal operation. There is the risk of burn injury
when these parts are touched.
Warning, Risk of electric shock
Personnel must remove all conductive jewelry or personal equipment
prior to installation or service of the device, parts, connectors, and/or
wiring.
Only the licensed and qualified electricians are allowed to perform the
installation, wiring, maintenance or modification on the device.
Switch off the circuit breakers before installation and wirings. Never
stand on a wet location when working on installation and wirings.
Even when no external voltage is presented; the inverter can still
contain high voltages and the risk of electrical shock. Allow 5 minutes
for the inverter to discharge completely after disconnecting the AC
and DC sources from the inverter.
The inverter must be provided with an equipment-grounding
conductor connected to the AC grou n d.

Maintenance and Clean
Each inverter is well calibrated before shipment and needs no
additional maintenance during normal operation.
！
Alterations are not to be made and no tampering with the assembly in
the inverter without the manufacturer’s authorization unless
specified elsewhere in this manual. They may result in injury, electric
shock, or fire and void the warranty.
！
The inverter contains no user serviceable parts inside. Only trained
staff is authorized to repair the unit. Please contact the specialized
dealer or system technician for further examination.
！
Wipe the enclosure and display lens with a soft cloth. Do not use
aggressive detergent or cleaning solvents.
！
Switch the DC disconnect on and off at least once per month in order
to clean the contacts of switch.
！
Battery Installation and Maintenance should be performed or
supervised by personnel knowledgeable about batteries and the
required precautions. For a more detailed installation and
maintenance, please refer to the (battery)
manufacturer's manual for
specific towing instructions.
！
If the inverter can’t be used, it should be disposed of according to the
industrial waste.

Contents
1INTRODUCTION............................................................................ 1
1.1 GENERAL........................................................................................ 1
1.2 SPECIFICATIONS.............................................................................. 2
1.3 FUNCTIONS AND FEATURES ............................................................ 6
1.4 ACCESSORIES.................................................................................. 7
2INSTALLATION.............................................................................. 8
2.1 PLACEMENT.................................................................................... 8
2.2 MOUNTING ..................................................................................... 9
2.2.1 SAFETY NOTES ..........................................................................................................9
2.2.2 INSTALL INVERTER ON WALL............................................................................10
2.2.3 CHECK INSTALLATION STA TU S ...........................................................................13
2.3 WIRING THE INVERTER ................................................................14
2.3.1 SAFETY NOTES .......................................................................................................14
2.3.2 INTRODUCTION ......................................................................................................14
2.3.3 DC INPUT WIRING ...............................................................................................15
2.3.4 COM LINE CONNECTION....................................................................................21
2.3.5 AC OUTPUT WIRING............................................................................................31
3OPERATION .................................................................................34
3.1 OVERVIEW....................................................................................34
3.2 LCD DI S P LAY ...............................................................................35
3.3 BUTTONS ON PANEL .....................................................................36
3.4 LED INDICATION .........................................................................36

3.4.1 OPERATIONAL STATUS .........................................................................................37
3.4.2 CHECK ERROR MESSAGE.....................................................................................39
3.4.3 SETTING BEFORE OPERATION ...........................................................................40
3.4.4 INFORMATION.........................................................................................................43
3.4.5 BATTERY PARAMETERS .......................................................................................45
3.4.6 SELF-TEST (FOR ITALIAN MARKET ONLY)......................................................48
3.5 DESCRIPTIONS OF ERROR MESSAGES............................................54
3.6 TROUBLESHOOTING......................................................................59
4TECHNICAL DOCUMENTATION ...............................................64
4.1 OUTLINE DR AWI N G ......................................................................64
4.2 EFFICIENCY...................................................................................65
4.3 MPP EFFICIENCY .........................................................................67

List of Figures
Fig 1: Energy storage for grid connected solar system overview................................. 1
Fig 2: Accessories i n the package.......................................................................................... 7
Fig 3: Hanging surface............................................................................................................. 9
Fig 4: Clearances required for installation.......................................................................10
Fig 5: Fasten t he mounting bracket ...................................................................................11
Fig 6: Hook the inverter on the mounting bracket ........................................................12
Fig 7: Fasten t he screws ........................................................................................................12
Fig 8: Enclosure bottom view ...............................................................................................14
Fig 9: Assemble your DC terminals (solar panel) - step 1 ............................................16
Fig 10: Assemble your DC terminals (solar panel) - step 2..........................................16
Fig 11: Complete your DC terminals (solar panel) ........................................................17
Fig 12: Assemble your DC terminals (Battery) - step 1 ................................................17
Fig 13: Assemble your DC terminals (Battery) - step 2 ................................................18
Fig 14: Assemble your DC terminals (Battery) - step 3 ................................................18
Fig 15: Assemble your DC terminals (Battery) - step 4 ................................................19
Fig 16: Remove the battery connector cover ..................................................................19
Fig 17: Complete your DC terminals (Battery)...............................................................20
Fig 18: Remove the battery connector..............................................................................20
Fig 19: Communication interface assignment ................................................................21
Fig 20: Communication interface RJ45 pins assignment .............................................21
Fig 21: Remove the RS485 port housing...........................................................................23
Fig 22: Assemble the communication cable gland ........................................................23
Fig 23: Assemble the communication cable ....................................................................24
Fig 24: Lock the RS485 port housing .................................................................................24
Fig 25: Fasten the waterproof cable gland nut ...............................................................24
Fig 26: Multi-inverter wiring by RS485 ............................................................................25
Fig 27: Selfnergy (optional smart power console) system overvi ew ........................26
Fig 28: Remove the protective cover ..................................................................................28

Fig 29: Connection power cable ..........................................................................................28
Fig 30: Lock the protective cover ........................................................................................29
Fig 31: Connection RS485 communication cable ...........................................................29
Fig 32: Connecting Battery Temperature Sensor ...........................................................30
Fig 33: Assemble your AC terminals ..................................................................................31
Fig 34: Check the phase and ground terminals ..............................................................32
Fig 35: Fasten the gland nut .................................................................................................32
Fig 36: Push the connector until the latch is positioned...............................................33
Fig 37: Overview front panel of the inverter ...................................................................34
Fig 38: LCD display overview ...............................................................................................35
Fig 39: Search for inverters..................................................................................................48
Fig 40: Communicated successfully....................................................................................49
Fig 41: Self-test process .........................................................................................................51
Fig 42: Outline drawing.........................................................................................................64
Fig 43: Euro. Efficiency of the Selfnergy-3300 = 96.1% ...............................................65
Fig 44: Euro. Efficiency of the Selfnergy-4000 = 96.5% ...............................................65
Fig 45: Euro. Efficiency of the Selfnergy-5000 = 96.6% ...............................................66
Fig 46: MPP Efficiency of the SELFNERGY-SERIES ........................................................67

1
1Introduction
1.1 General
The SELFNERGY series is a compact storage solution from AEC. It's a
s i n g le -phase inverter with integrated Lead-acid/Li-ion battery, especially
suitable to the needs of households. The grid-connected inverter converts DC
power yielded from solar array into AC power for household consumption.
For the systems, the inverter also regulates the charge of batteries. The
electricity stored in the batteries can be produces the energy consumed by
the loads at night. Furthermore, the remaining AC power can be transmitted
and sold back to the utilities company. The inverter operates intelligently
under normal conditions and provides backup power in case of power cut.
When there is a power outage, the system will automatically switch to an
independent power supply mode. So that the inverter can continue to
provide emergency (backup) power and will not endanger the safety of the
power grid. The configuration is straightforward as shown below. Connect
the PV wires from floating (ungrounded) PV array to the DC input of the
inverter; also, connect the AC output to the service entrance. Please consult
with your installer for PV array ratings and external protective devices if the
electrical codes are stipulated locally.
Fig 1: Energy storage for grid connected solar system overview

2
1.2 Specifications
Model Selfnergy-3300 Selfnergy-4000 Selfnergy-5000
Output Data (AC)
Maximum AC Output Power
3300 VA
4000 VA
5000 VA*
Maximum AC Output Current
16.5 a.c.A
20 a.c.A
24.5 a.c.A*
Nominal AC Voltage
230 a.c.V
Grid AC Frequency
50 / 60 Hz, auto-selection
Power Factor
> 0.99 @ 20% load
Reactive Power Factor
1 or adjustable from -0.9 to +0.9
Total Harmonic Distortion
< 3%
Max. output fault current (Inrush)
80 Apeak / 200 μs
Max. output overcurrent protection
76.8 A
AC connection / Grid forms
Single-Phase / TN-C, TN-S , TN -C-S
Input Data (Solar)
Maximum DC Power
3600 W
4300 W
5300 W
Maximum DC Input Current(Is c PV)
18 d.c.A
21.5 d.c.A
26.5 d.c.A*
Max. backfeed current to the array
0 d.c.A
Max. number of MPP Trackers
1
Maximum DC Voltage
650 d.c.V
MPP Tracking Voltage Range
150-500 d.c.V
Peak Power Tracking Voltage
200-460 d.c.V

3
Input Data (Battery)
Maximum Discharging Power
3600 W
4300 W
5300 W
Maximum Discharging Current
18 d.c.A
20.0 d.c.A
24.5 d.c.A*
Maximum Charging Current
20.0 d.c.A
Maximum Battery Voltage
400 d.c.V
Configurable Voltage Range
198-400 d.c.V
Nominal battery voltage
240 d.c.V (Lead-acid), 216 d.c.V (Li-ion)
Battery Type / Capacity (range)
FLA, VRLA, Li-ion** / 14 Ah ... 1000 Ah
Charge Control
CC, CV
Efficiency
MPPT Efficiency
>99.9%
Maximum Efficiency
96.5%
96.8%
96.9%
Euro. Efficiency
96.1%
96.5%
96.6%
Consumption:
Operating (standby) / Night
< 12.5 W / < 0.5 W
General Specificatio n
Dimensions (W x H x D) in mm
405 x 442 x 165
Weight
26.35 Kg
Cooling Concept
Free Convection
Acoustic Noise Level
< 35 dB(A)
Maximum Operating Temperature
Range without derating
+50 °C
+45 °C
Ambient Temperature Range
-20 to +60 °C
Storage / Transportation Condition

4
General Specificatio n
Relative Humidity
4 to 95%, non-condensing
Storage / Transportation Condition
Operating Altitude
2000 m
Pollution Degree
PD3
Protection Class of Enclosure
IP65
Protection Class
Class I
Overvoltage Category
OVC
Ⅱ
(PV) / OVC
Ⅲ
(Mains)
Topology
Transformerless
Features
DC Connection
PV4, Tyco, MC4
DC Disconnect
yes
AC Connection
AC connectors
Display
Graphic LCD screen
Communication Interface
RS485 , Ethernet/WiFi (Option)
EMC & Low Voltage Directives
2004/108/EC & 2006/95/EC
Standards
IEC/EN 62109-1/-2 ,
VDE-AR-N 4105 , CEI 0-21
Warranty
5 years
* For VDE-AR-N4105, the inverter is rated 4600 VA.
** With AEC specified battery pack.
！
Non-isolated inverters shall be provided with installation
instructions that require PV modules that have an IEC 61730
Class A rating.

5
Adjustable voltage, Frequency and Reconnection Settings
Settin g
VDE-AR-N 4105
Range
Default
Over-frequency (Hz)
50.05~51.50
(60.05~61.50)*
51.5
(61.5)*
Over-frequency disconnection time (cycle)
1~10
8
U n de r -frequency (Hz)
47.50~49.95
(57.50~59.95)*
47.50
(57.50)*
U n de r -frequency disconnection time (cycle)
1~10
8
Over-voltage (Vac)
235~264.5
264.5
Over-voltage disconnection time (cycle)
1~10
8
U n de r -voltage (Vac)
184~225
184
U n de r -voltage disconnection time (cycle)
1~10
8
DC injection tripping current (A)
0.1~1.0
1.0
DC injection
disconnection time (cycle)
1~150
8
Insulation resistance trip setting (MΩ)
0.5~10
0.5
PV start voltage (Vdc)
150~500
150
Reconnect delay** (s)
5~300
60
*
This inverter product is c om p at ib le on the frequency of 50Hz or 60Hz.
**
Once a grid failure occurs, the inverter waits 5~300 seconds before the
next connection to the utility grid. The default setting is 60 seconds for
VDE-AR-N 4105.

6
1.3 Functions and Features
DSP (Digital Signal Processor) makes use of the advanced digital
control technology to enhance the conversion efficiency and the added
functions.
Conformity to the EMC, Low Voltage Directives and Standards, e.g.
2004/108/EC, 2006/95/EC, IEC/EN 62109-1/-2, I EC/EN 62040-1,
VDE-AR-N 4105 and CEI 0-21.
Inverter for self consumption of PV electricity application.
Iconic display easy to monitor energy flow.
Smart power cons o le for smart load control and easy installation.
Selectable scenarios for sophisticated energy application.
Special external capacitor modular design for long life span.
High battery discharge control for long life span of Li-ion battery
(optional).
Extendable Li-ion battery pack design form 4kWh~20kWh (optional).
IP65 fan-less nature cooling design / up to 45°C without derating.
Low acoustic noise while the inverter operates.
Low loss unipolar configuration with high-frequency switching IGBT.
Waterproof and quickly-installed connectors used.
Monitor the power information and the system settings via a computer,
the monitoring software and RS485 / Ethernet or WiFi (optional)
interfaces (please refer to the Installation Manual).
The power generation system is interactive and complementary to the
utility’s power. When the power generation is insufficient, it can be
supplied by the local utility’s power; when power cut happens,
disconnect the power automatically to maintain the personnel safety.

7
1.4 Accessories
Please check the inverter and accessories in the package. If there is some
part i n c o mp le t e or any pages missing from the manual, please contact the
authorized agent. Please check the following items in the box:
A. Photovoltaic Inverter x 1
B. Mounting Bracket x 1
C. Female Cable Coupler Plus Key x 2and Minus Key x 2
D. AC Female Connector x 1
E. Battery Connector x 1
F. Battery Temperature Sensor x 1
G. Operation Manual (incl. warranty page) x 1
H. Fixing Screws (bet. the inverter and bracket) x 2
Fig 2: Accessories in the package
A. B.
C.
D. E. F. G H

8
2Installation
2.1 Placement
Please take the following points into consideration when installing the
inverter and selecting the installation location:
A solid and vertical wall is essential; not to hand it on a forward-tilting
surface. The backward-tilting angle must be less than 10°.
The installation location of the inverter must conform to the size and
weight specifications (See the technical information on sect ion 1.2.).
The inverter installation location must have the appropriate amount of
space and be kept clear, and the inverter can be safely operated
without the assistance of auxiliary tools (such as ladder or lift).
The installation location of the inverter must have at least 20 cm of
space. The environmental temperature must be kept at -25 °C ~ 60 °C.
To obtain the best conversion efficiency, the DC and AC power
connection prefer the shortest distance. If the distance exceeds 20m,
it’s recommended that the diameter is increased (according to the
specifications of this inverter, the standard diameter of DC and AC
power wires are 12 AWG.).
In order to select the appropriate installation location for the inverter,
please see the outline drawing.
The inverters with IP65 rating can be installed outdoors. However, it’s
recommended to avoid direct sunlight and rain. If it can’t be avoided,
please install a rain shield to extend the lifetime of the inverter.
In theory this IP65 unit can be used in pollution degree
4. However, it is suggested to provide with means to
reduce the micro-environment to pollution 1, 2 or 3.

9
Fig 3: Hanging surface
2.2 Mounting
2.2.1 Safety Notes
Don’t remove the external cover of the inverter. No parts inside the
inverter are to be maintained by the user. If necessary, only qualified
maintenance staff can carry out; The solar panel exposed to sunlight
supplies DC power. Pay attention to electric shock when connecting
the DC power to the inverter.
！
The inverter (not stand-alone type) is designed to connect in paral le l
with the utility network. In order to avoid damage, the AC output can’t
be connected to a power generator or the like.
Heat will generate when the inverter operates. Don’t touch the heat
sink or on top of the enclosure to avoid injury due to the hot surface.

10
2.2.2 Install Inverter on Wall
1. Select the appropriate space and the solid and vertical surfaces
enough to support the inverter.
2. The space surrounding the inverter must be appropriate so that
heat can be dissipated easily and maintained conveniently, as
shown below.
Fig 4: Clearances required for installation