Delta H8E Specification sheet

H8E / H9E / H10E
Operation and Installation Manual
Grid-tie Transformerless Solar Inverter
The power behind competitiveness
www.deltaww.com

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Contents
1 General Information ............................................................................6
1.1 Scope of delivery ............................................................................ 6
1.2 General Warnings / Notes on Safety .............................................. 6
1.3 Validity............................................................................................ 7
1.4 Product Description ....................................................................... 7
1.5 How it Works .................................................................................. 7
1.6 Additional Information ................................................................... 7
2 Package Inspection..............................................................................8
2.1 Unpacking ...................................................................................... 8
2.2 Package Inspection ......................................................................... 8
2.3 Identification Label ...................................................................... 10
3 Product Overview ............................................................................. 11
3.1 Dimensions ................................................................................... 11
3.2 Function Introduction .................................................................. 11
3.3 LED Indicator ................................................................................ 12
3.3.1 Introduction ...................................................................... 12
3.3.2 LED Status ......................................................................... 12
3.3.3 LED Message ..................................................................... 13
3.4 Reset Button ................................................................................. 14
4 Installation ....................................................................................... 15
4.1 Instruction .................................................................................... 15
4.2 Installation Location ..................................................................... 15
4.3 Mounting ...................................................................................... 15
5 Wiring .............................................................................................. 19
5.1 Preparation before Wiring ........................................................... 19
5.2 Opening the wiring box cover ...................................................... 20
5.3 AC Grid Connection : L + N + PE ................................................... 21
5.3.1 AC circuit breaker requirements ...................................... 21
5.3.2 AC Connection .................................................................. 21
5.4 DC Connection (from PV Array).................................................... 22
5.4.1 DC connector of H8E / H9E / H10E ................................... 23
5.4.2 DC cable connection ......................................................... 23
5.5 Grounding .................................................................................... 24

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5.6 Power meter ................................................................................ 24
6 Turning the PV inverter on/off ........................................................... 26
6.1 Start-up Procedures ..................................................................... 26
6.1.1 PV Array DC Voltage Checking .......................................... 26
6.1.2 AC Utility Voltage Checking .............................................. 26
6.1.3 Starting up the Inverter .................................................... 26
6.1.4 Wi-Fi communication........................................................ 26
6.2 Shut down Procedures ................................................................. 27
7 Active/Reactive Power Control .......................................................... 28
7.1 Active Power Control ................................................................... 28
7.1.1 Power vs. Voltage.............................................................. 28
7.1.2 Power vs. Frequency ......................................................... 28
7.2 Reactive Power Control ................................................................ 29
7.2.1 Fixed Power Factor mode ................................................. 29
7.2.2 Fixed Reactive Power mode .............................................. 29
7.2.3 cosφ - P mode ................................................................... 29
7.2.4 Voltage – var response mode ........................................... 30
7.3 Demand Response Mode ............................................................. 30
8 Maintenance .................................................................................... 32
9 Error Message and Trouble Shooting ................................................. 33
9.1 Error Message & Trouble Shooting .............................................. 33
10 De-Commissioning ............................................................................ 42
11 Technical Data ................................................................................... 43
Figure
Figure 1-1: Solar system operation illustration ......................................................................7
Figure 2-1 : Unpacking process ...............................................................................................8
Figure 2-2: Components of H8E / H9E / H10E ......................................................................9
Figure 2-3: Components of Power meter ...............................................................................9
Figure 2-4: The identification label ........................................................................................10
Figure 3-1: Dimensions of H8E / H9E / H10E ......................................................................11
Figure 3-2 : Inverter exterior objects .....................................................................................12
Figure 3-3 : Reset button ........................................................................................................14
Figure 4-1 : Attaching the mounting bracket for H8E / H9E / H10E ..................................16

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Figure 4-2 : Correct and incorrect installation illustration ...................................................17
Figure 4-3 : Adequate installation gap ..................................................................................18
Figure 5-1: Connection of a system for floating solar array ...............................................19
Figure 5-2: Removing the wiring box cover.........................................................................20
Figure 5-3: Locations of wiring box conduit plugs ...............................................................20
Figure 5-4: AC cable connection ............................................................................................22
Figure 5-5: DC cable connection ...........................................................................................23
Figure 5-6: Ground cable connection ....................................................................................24
Figure 5-7: Power meter wiring ..............................................................................................25
Figure 7-1: Power vs. Voltage (example for Australia) .......................................................28
Figure 7-2: Power vs. frequency characteristic ...................................................................29
Figure 7-3: Example of cosφ – P characteristic ..................................................................30
Figure 7-4: Example of Voltage - var characteristic (Australia) .........................................30
Figure 7-5: DRM mode diagram ............................................................................................31
Table
Table 2-1: Packing list of H8E / H9E / H10E and Power meter ..........................................9
Table 3-1: LED indicator.........................................................................................................12
Table 3-2: LED Message .......................................................................................................13
Table 3-3: Reset button function ...........................................................................................14
Table 5-1: Recommended upstream protection .................................................................21
Table 9-1: Error Message ......................................................................................................41
Table 11-1: Specifications ......................................................................................................44

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1 General Information
1.1 Scope of delivery
Congratulations on the purchase of your Delta H8E / H9E / H10E grid-tied solar inverter.
This manual will assist you in becoming familiar with this product. Please observe all
safety regulations and take into account the connection requirements by your local grid
utility.
1.2 General Warnings / Notes on Safety
Careful handling of the product will contribute to it's service life durability and reliability.
Both are essential to ensure maximum yield from your product. As some of the solar
inverter models are heavy, two people may be required for lifting purposes.
CAUTION !
During operation of electrical devices, certain parts are under dangerous voltage.
Inappropriate handling can lead to physical injury and material damage.
Always adhere to the installation regulations. Installation may only be conducted
by certified electricians.
WARNING !
Repair work on the device should ONLY be carried out by the manufacturer.
The inverter contains no user serviceable parts inside.
Please observe all points in the operation and installation manual. Isolate the device
from the grid and the PV modules before undertaking work on the device.
DANGER!
To avoid risk of electrical shock, do not open the solar inverter. The inverter contains
no user-serviceable parts. Opening the inverter will void the warranty.
Dangerous voltage is present for 1 minute after disconnecting all sources of
power, recommend 5 minutes for discharging.
Remember that the unit has a high leakage current. The PE conductor
MUST be connected prior to commencing operation.
WARNING !
The internal temperature may exceed over 70°C while operating.
To avoid injury, do not touch the surface of the inverter whilst the unit is in
operation.
ATTENTION
For operation and installation of inverter refer to the user manual.
Failure to comply with the instructions in this manual may void the warranty.

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1.3 Validity
This user manual describes the installation process, maintenance, technical data and
safety instructions of the following solar inverter models under the DELTA brand.
• H8E • H9E • H10E
1.4 Product Description
This device is a single-phase grid-tie solar inverter. It converts direct current (DC)
electricity from the PV array into single phase alternating current (AC) to supply power
to the load and feed the excess generated power back to the local grid. This inverter
allows for a wide voltage input range and has a high performance efficiency and user
friendly operation. In addition, the special DSP
(Digital Signal Processor) design reduces the complexity of the circuit and electronic
components. Please note that this device does not support off-grid function. The features
for H8E / H9E / H10E are shown below.
Features
• Max Output Power Rating: 8kVA (H8E), 9kVA (H9E), 10kVA (H10E)
• Single–phase (L + N + PE), Grid-tie, transformerless solar inverter
• Maximum efficiency : >98.0%
• Europe efficiency : 97.3%
• Reactive power capability (Cap 0.85 – Ind 0.85)
• Total harmonic distortion (THD < 3%) @ full load
1.5 How it Works
The operation of a solar inverter is shown in
Figure 1-1
.
In order to save energy and electricity, the solar inverter converts the DC input power
supplied from the PV Array into single-phase AC output power to Grid.
Figure 1-1: Solar system operation illustration
1.6 Additional Information
For more detailed information for H8E / H9E / H10E or other related product information,
please visit : www.deltaww.com
PV Array Electrical Grid Solar Inverter

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2 Package Inspection
2.1 Unpacking
Unpacking process is shown as
Figure 2-1
.
Figure 2-1 : Unpacking process
Upon receiving your brand new inverter, you will be required to remove it’s protective
packaging. This packaging consists of various materials that will need to be disposed of
according to the specific recycling marking printed on them.
2.2 Package Inspection
Unforeseeable events causing damage or movement may occur during shipment.
Please check for damage on the packaging upon receiving your inverter. Please check
the model number and the serial number on the packaging is identical with the model
number and serial number on the unit itself.
Check if all the accessories are in the package, the standard accessories are listed as
Table 2-1
.

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Figure 2-2: Components of H8E / H9E / H10E
Power meter is necessary function for H8E / H9E / H10E to meet the requirements of
AS4777. The length of current sensor cable is available at 10m or 30m.
Figure 2-3: Components of Power meter
H8E / H9E / H10E
Object Qty Description
①
PV Inverter 1 Solar inverter
②
Quick installation guide 1
Important safety instructions and technical specifications
should be followed during installation.
○
3
Wall-Mount Bracket 1 To mount the solar inverter securely on the wall.
○
4
Antenna 1 For communication
○
5
Current Sensor 1 Current Sensor for power meter function
○
6
Current Sensor Cable 1 Cable for current sensor, length of 10m or 30m
Table 2-1: Packing list of H8E / H9E / H10E and Power meter
○
5
○
6

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CAUTION !
If there is any visible damage to the inverter/accesories or any damage to the
packaging, please contact your inverter supplier before installation.
2.3 Identification Label
Users can identify the model name by the information on the product label. The model
name, serial number and other specifications can be located on the product label. For
label location, please refer to
Figure 2-4
.
Figure 2-4: The identification label (H10E)

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3 Product Overview
3.1 Dimensions
Figure 3-1: Dimensions of H8E / H9E / H10E
3.2 Function Introduction
The Inverter’s exterior is shown in
Figure 3-2
.
Unit: mm

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Figure 3-2 : Inverter exterior objects
3.3 LED Indicator
3.3.1 Introduction
There are five LEDs in the front side of the inverter, from left to right, it is used for
indicating status of operation, battery, communication, information and fault.
Note: Battery LED is a reserved design for energy storage inverter. The status of this
LED is meaningless for H8E / H9E / H10E.
3.3.2 LED Status
Label Designation Color
Operation(OPER) Red / Green
Battery(BAT) Red / Green
Wireless Communication(
COMM
) Red / Green
Information(INFO) Red / Green
Fault(FAULT) Red / Green
Table 3-1: LED indicator
Product Label
Warning Label
LED Indicator
Conduit hole for comm.
Conduit hole for AC
Conduit hole for DC
Lockable DC Switch
Reset Button
Hole for Antenna

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3.3.3 LED Message
The LEDs indicate the operational status of the inverter.
Message
Category
LED Signals
Message Explanation
Example
LED
Color
Status
Behavior
OPER
Led
Normal
operation
OPER Green <ON> Constant on The inverter feeds in
grid.
Sync. OPER Green <BAR> Four LEDs
form a
progress
bar.
The inverter is
synchronizing with grid.
LED signals:
OPER LED is ON,
BAT Green <BAR> BAT LED is ON.
COMM LED
Blinks Message:
Synchronization
progress is 50%-
75%.
COMM
Green <BAR>
INFO Green <BAR>
Night mode OPER Green
<BLINK>
1s on, 4s off Grid is connected, but
the inverter is unable to
feed in grid because PV
voltage is too low.
BAT
Led :
Meaningless for H8E / H9E / H10E
COMM
Led
BLE fail
COMM
Red <ON> Constant on BLE is in fault mode
APP
Connected
COMM
Green <ON> Constant on APP is connected
BLE is
running
COMM
Green
<BLINK>
1s on, 1s off BLE is running Only BLINK for 2
cycles in one minute
INFO
Led
Firmware
upgrading
INFO
Yellow
<BLINK>
1s on, 1s off Firmware upgrading is
ongoing
Receiving
image
INFO Green
<BLINK>
1s on, 1s off Inverter is receiving
image file
Equipment
alarm
INFO
Yellow
<ON> Constant on External event occurs
and inverter is unable to
run
FAULT
Led
Ground fault FAULT Red
<BLINK>
1s on, 1s off Ground fault occurs
Other
Initialization OPER Green <ON> On until
done
Inverter initialization
when grid is changing
from disconnected into
connected.
BAT Green <ON> On until
done
COMM
Green <ON> On until
done
INFO Green <ON> On until
done
Table 3-2: LED Message

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3.4 Reset Button
There is button located inside the junction box, for this button, there are following
functions.
Operation Functions
Push 3s~10s Reset Wi-Fi module
Push 10s~20s Clear AFCI Fault
Push 20s~ Reset Wi-Fi module, and Wi-Fi password returns to
the default: DELTASOL
Table 3-3: Reset button function
Figure 3-3 : Reset button
Reset Button

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4 Installation
4.1 Instruction
Due to the variety of users and installation environments, you must read this manual
thoroughly before installation. Installation of the unit and start-up procedures must be
carried out by an accredited technician.
4.2 Installation Location
The inverter can be installed in indoors / outdoors.
WARNING !
Do not install the unit near or on flammable surfaces. Mount
the unit tightly on a solid/smooth surface.
CAUTION !
The unit should not be installed in direct sunlight.
4.3 Mounting
This unit is designed to be wall-mounted. Please ensure the installation is perpendicular
to the floor and the AC plug located at the base of the unit. Do not install the device on
a slanting wall. The dimensions of the mounting bracket are shown in the figure below.
To mount the inverter on the wall, please follow the procedure below:
1) Screw the mounting bracket on the wall with 4 * Φ6 mm Phillips head screws.
2) Attach the inverter to the mounting bracket.
3) Use Hex Wrench fixing the inverter with 2 * 6.0mm Hexagon Socket screw.Φ
Please refer to
Figure 4-1
and
Figure 4-2
.

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Figure 4-1 : Attaching the mounting bracket for H8E / H9E / H10E
1
2
3

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Inverter must be installed vertically with a maximum incline of +/-5°on a flat surface
Figure 4-2 : Correct and incorrect installation illustration
CAUTION !
• The bracket supplied with the unit is specially designed and should be the only
mounting device used for the unit.
• It is recommended to install the inverter in a suitable location which offers easy
and safe access for service and maintenance.
• Please leave an appropriate gap in between units when installing multiple solar
inverter systems.
• Please install solar inverter at eye level to allow easy observation for operation
and parameter setting.
• Ambient temperature for operation: -25°C ~ +65°C (power derating above 45°C).
Please ensure the spacing requirement to allow for sufficient convective cooling.
It is essential to ensure sufficient space for product operation as shown in
Figure 4-3
.

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Figure 4-3 : Adequate installation gap

Wiring
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5 Wiring
5.1 Preparation before Wiring
1) Ensure voltage values and polarities are correct.
2) When grounding the solar array positive or negative terminal, an isolation
transformer is required due to the H8E / H9E / H10E not having galvanic
isolation between the DC-input and AC-output.
3) The ground fault detection is a fixed internal setting. It cannot be modified.
4) Please refer to
Figure 5-1
for connections. Inverter can accept DC inputs in
parallel.
5) According to IEC 62109-2, the PV modules need to have an IEC 61730 Class
A rating.
Figure 5-1: Connection of a system for floating solar array
WARNING! SHOCK HAZARD
When the photovoltaic array is exposed to light, it supplies a DC voltage to the
Inverter, a shock hazard may exist due to output wires or exposed terminals.
To reduce the risk of shock during installation, cover the array with an opaque
(dark) material and ensure that the Disconnect Device in the inverter is set to
OFF before commencing any wiring.

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5.2 Opening the wiring box cover
1) Place DC Disconnect switch in “OFF” position. Please note the cover cannot
be removed when the DC Disconnect switch is in the “ON” position.
2) Remove the 4 cover screws indicated above with a T20 Torx screw driver
3) Lift the cover upward and place off to the side.
Figure 5-2: Removing the wiring box cover
Figure 5-3: Locations of wiring box conduit plugs