– Powervortex 306KTL
Three-phase Grid-Tied Hybrid Inverter
User Manual
Version 1.1
GMDE Powervortex 306KTL
Global Mainstream Dynamic Energy Technology Ltd.
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Content
Prelude ..................................................................................................................... 4
1. Safety .................................................................................................................... 5
1.1 How to Use This Manual .................................................................................................. 5
1.2 Safety Rules ..................................................................................................................... 5
1.3 Warning Notices Affixed to the Device ........................................................................... 6
1.4 Important Safety Information ......................................................................................... 6
1.5 Disposal ........................................................................................................................... 8
1.6 Exclusion of Liability ........................................................................................................ 8
2. Description ............................................................................................................ 9
2.1 General System Description ............................................................................................ 9
2.2 Description of the Device .............................................................................................. 11
2.3 Outside Dimension of the Device .................................................................................. 12
2.4 Technical Data ............................................................................................................... 12
2.4.1 DC Data ................................................................................................................... 12
2.4.2 AC Data ................................................................................................................... 13
2.4.3 General Data ........................................................................................................... 13
3. Installation .......................................................................................................... 15
3.1 Operation Sequence ...................................................................................................... 15
3.2 Unpacking ...................................................................................................................... 16
3.2.1 Packing List ............................................................................................................. 16
3.2.2 Unpacking the Device ............................................................................................. 16
3.2.3 Identifying the Inverter .......................................................................................... 17
3.3 Mounting ....................................................................................................................... 17
3.3.1 Assembly Site Requirements .................................................................................. 17
3.3.2 Mounting the Inverter ............................................................................................ 18
3.4 Electrical Connection ..................................................................................................... 20
3.4.1 Connectors.............................................................................................................. 20
3.4.2 DC Connection ........................................................................................................ 20
3.4.3 AC Connection ........................................................................................................ 21
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3.4.4 Communication Interface Port ............................................................................... 23
*3.4.5 Power Meter Installation ...................................................................................... 24
4. LCD Display ......................................................................................................... 26
4.1 LCD Interface ................................................................................................................. 26
4.2 Menu Structure ............................................................................................................. 27
4.2.1 Main Menu ............................................................................................................. 27
4.2.2 Energy Menu Structure .......................................................................................... 29
4.2.3 Run Info Menu Display ........................................................................................... 30
4.2.4 Fault& Alarm Menu Display.................................................................................... 31
4.2.5 Setting Menu Display .............................................................................................. 32
4.2.6 “Inv Info.” Menu Display ........................................................................................ 32
4.3 Settings .......................................................................................................................... 32
4.3.1 Language Setting .................................................................................................... 34
4.3.2 Clock Setting ........................................................................................................... 34
4.3.3 Password Setting .................................................................................................... 35
4.3.4 Battery Setting ........................................................................................................ 36
4.3.5 Local Address .......................................................................................................... 37
4.3.6 Clear Data ............................................................................................................... 40
4.4 Fault, Warning and Historical Information Deleting ..................................................... 41
5. Troubleshooting .................................................................................................. 43
5.1Safety during Troubleshooting ....................................................................................... 43
5.2 Faults ............................................................................................................................. 43
5.3 Fault Messages and Actions List .................................................................................... 43
5.4 Fault Acknowledgement ................................................................................................ 47
5.5 Technical Service ........................................................................................................... 47
6. Maintenance ....................................................................................................... 48
6.1 Before Maintenance ...................................................................................................... 48
6.2 Visual Inspection ............................................................................................................ 48
6.3 DC Switch Yearly Maintenance ...................................................................................... 48
7. Contact ........................................................................................................... 49
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Prelude
Published by
Legal Disclaimer
Copyright
Global Mainstream Dynamic Energy Technology Ltd. (GMDE)
Room 604-605, Tongpu Road No.1220, Putuo District, Shanghai,
P.R.China.
Tel: +86 21 60710809 Fax: +86 21 61730300
www.global-mde.com
All information in this documentation has been compiled and checked
with most care. Despite of this, faults or deviations cannot be
completely excluded. We assume no liability and are hereby
acknowledged.
The relevant up-to-date version can be obtained from
www.global-mde.com
The details of this documentation are the property of GMDE.
Using and publicizing this documentation, even if only in parts require
the written consent of GMDE.
Read this user manual before you start
Thank you for purchasing our products, this hybrid inverter is highly reliable and efficient due to its
convenient design and excellent quality. This three phase device is IP65 rated for dusty or humid
environments and is suitable for outdoor application.
If you are reading the electronic version of the manual, please note that you can click the content to
find information you want quickly. All the characters which contain underline are clickable. A phrase
named ‘Back to Top’ at the bottom of each chapter can help you back to the first page rapidly.
Before using this device, please ensure that you have read this manual including installation and safety
operation carefully.
If you have any difficulties during installation or operation, please refer to this manual or send email to
service@global-mde.com,we will help to solve your problems as soon as possible.
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1. Safety
1.1 How to Use This Manual
Please read the safety instructions in this manual first. Throughout the manual it is assumed that the
reader is familiar with AC and DC installations and knows the rules and regulations for electrical
equipment and for connecting it to the utility AC grid. It is especially important to be familiar with the
general safety rules for working with electrical equipment.
1.2 Safety Rules
General introduction
These safety-related guidelines use the following ANSI notations to describe the various levels of
danger:
Death or severe personal injury will occur.
DANGER
Death or severe personal injury may occur.
WARNING
Personal injury or material damage may occur.
CAUTION
Explanations
Electric Shock!
Do not open the device! Dangerous voltage may still be applied inside the
device even after it has been switched off.
Electric Shock!
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High leakage current!
Make absolutely sure you establish connection to ground before connecting
the device to the supply circuit!
WARNING
Health risk!
Health risk for persons with cardiac pacemakers, metallic implants, or
hearing aids in the immediate vicinity of electrical equipment!
WARNING
Risk of improper handling!
Personal injury by crushing, shearing, cutting, or striking.
CAUTION
Cancellation of the operating license!
If the GMDE inverter is operated with a wrong country code, the electric
supply company may cancel the operating license.
CAUTION
Hot Surface！
Surfaces of the housing can be hot! Risk of injury! Risk of burns.
The housing top and the heat sinks may have a surface temperature of 70°C
Hot Surface！
1.3 Warning Notices Affixed to the Device
1.4 Important Safety Information
The following operating and maintenance instructions must be read before installing, operating or
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maintaining the inverter.
Before installation:
Check for damage to inverter and package. If you are in doubt, please contact us or the distributor
before installing the inverter.
Before connecting the solar modules to the inverter, check the voltages and make sure they are within
the limits of the GMDE inverter specifications. Failure to observe these specifications could void your
warranty.
Installation:
Only trained and qualified personnel familiar with local electrical codes may work with the electrical
installations. For optimum safety, please follow the steps described in this manual.
Disconnecting the inverter:
Please refer to “Disconnecting for maintenance” in section6.1 Before Maintenance. Note that wait at
least 15 minutes before proceeding, after disconnecting the hybrid inverter from AC grid, PV panels
and battery packs.
Operating the inverter:
Do not commission the device until the overall system complies with the application-specific national
rules and safety regulations.
The ambient conditions given in the product documentation must be observed.
The machine or installation manufacturer is responsible for compliance with the limit values as
prescribed in the national regulations.
Only persons who are trained and qualified for the use and operation of this device may work on the
device.
Maintenance and modification:
Only authorized personnel are allowed to repair or modify the inverter. To ensure optimum safety for
user and environment, only the original spare parts available from your supplier should be used.
Functional safety parameters:
Unauthorized changes of functional safety parameters may cause injury or accidents to people or
inverter. Additionally it will lead to the cancellation of all inverter operating approval certificates.
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1.5 Disposal
Please dispose the package and replaced parts according to the rules
applicable in the country where the device is installed.
Do not dispose the GMDE inverter with normal domestic waste.
1.6 Exclusion of Liability
GMDE Technology Ltd. will not be liable for any direct, indirect or consequential damages, losses,
costs or losses including without restriction any economic losses of any kind, any loss or damage to
property, any personal injury, any damage or injury arising from or as a result of misuse or abuse, or
the incorrect installation, integration or operation of the product. We disclaim any liability for direct or
indirect damages due to:
1. Improper installation or commissioning,
2. Modifications, alterations or repair attempts,
3. Inappropriate use or operation,
4. Insufficient ventilation of the device,
5. Non-compliance with relevant safety standards or regulations,
6. Flood, lightning, overvoltage, storm, fire (acts of nature).
We do not assume any liability for an incorrectly set country code.
We reserve the right to make alterations that will improve the functioning of the device.
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2. Description
2.1 General System Description
GMDE Powervortex series hybrid inverters are designed for customers to build new PV energy storage
system as it is shown in below Figure 1 and Figure 2. GMDE all-in-one designed hybrid inverter
integrates both solar inverter and battery inverter. The energy management solutions of the energy
storage systems are described as solution 1 and solution 2.
Solution1: Integrated Energy Management Solution
Through RS485 cable, the hybrid inverter communicates with the power meter that is installed
between the AC grid and the customer load. With the power-related information sent from the power
meter, the hybrid inverter can automatically decide how to charge or discharge the connected battery
packs.
Note that:
(1) In this solution, lead-acid batteries can be integrated into the energy storage system without BMS
(Battery Management System).
(2) If lithium batteries are adopted, an independent BMS is compulsory to maintain battery’s lifetime.
(3) The power meter used in this application must be confirmed by GMDE first since the integration
of communication protocol between power meter and GMDE hybrid inverter is required.
Figure 1 Integrated Energy Management Solutions
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Solution2: External Energy Management Solution
Figure 2 External Energy Management Solutions
In this solution, a third party EMS (Energy Management System) is required. GMDE hybrid inverter is
connected to this EMS by RS485 communication cable. The EMS monitors and controls the start-up
and operation of hybrid inverter. GMDE hybrid inverter can work with all the EMS units as long as the
communication protocol is integrated. To request the detailed communication protocol, please
contact us at service@global-mde.com.
Note: Maximum Charging current, Maximum Discharging current, Discharging Stop Voltage and
Charging Stop Voltage should be set before commissioning to maintain battery’s lifetime. In solution1,
these parameters are set in LCD screen see Figure 3. In solution2, these parameters are set by external
commands according to communication protocol through RS485 interface.
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2.2 Description of the Device
The GMDE Hybrid inverter is a three-phase transformerless inverter, which could help customers to
reduce their electricity expense by optimizing use of PV and battery energy.
Figure 4 GMDE Powervortex306KTL
① Heat is dissipated by the heatsink and fan equipped at the bottom of this device.
② One AC output connector, which connect to AC grid and local load. (Rated conductor size: Ø
6 mm2).
③ Two pairs of PV-input terminals, each input pair consists of positive and negative terminals.
④ One pair of battery input terminals.
⑤ Integrated DC switch to switch on/off the PV and battery.
⑥ The GMDE hybrid inverter provides multiple communication choice: RS485/USB.
⑦ 320x240 pixels display screen, on which the operation related information can be displayed.
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2.3 Outside Dimension of the Device
Figure 5 Outside dimension of GMDE Powervortex306KTL
2.4 Technical Data
2.4.1 DC Data
MODEL LIST
Powervortex 306KTL HI
PV INPUT (DC)
Maximum PV Power [kW]
6.3
V
MAX
PV [Vdc]
800
Nominal DC voltage [Vdc]
640
MPP Voltage Range [Vdc]
350-700
Max. Input Current [A]
18
Input Voltage Range [Vdc]
200~800
Start PV Voltage [Vdc]
300
Stop PV Voltage [Vdc]
200
MPP Trackers
1
BATTERY INPUT(DC)
Maximum DC Power [kW]
6
Full Power Operating DC Voltage Range [Vdc]
300-800
Operating DC Voltage Range [Vdc]
200-800
Charging Upper Limit Voltage [Vdc]
Being adjustable according to actual battery
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Discharging Stop Voltage [Vdc]
packs configuration, as long as not exceed the
input voltage range.
Maximum Discharging Current [A]
20
Maximum Charging Current [A]
20
Table 1 Specifications of GMDE Powervortex306KTL -1
2.4.2 AC Data
MODEL LIST
Powervortex 306KTL HI
OUTPUT (AC)
Nominal Output Power [kW]
6
Nominal Output Voltage [Vac]
3N~400
Operating AC Voltage Range [Vac]
324-436, 437-460 (<10min.)
Nominal Output Frequency [Hz]
50
AC Voltage Frequency Range [Hz]
47.55-51.45
Nominal Output Current [A]
8.6
Max. Output Current [A]
9.5
Power Factor [λ]
[-0.95, 0.95]
Standby Power Consumption [W]
< 15
THDI (100% Full Power)
< 3%
DC Current Injection (Max.) [mA]
50
EFFICIENCY
PV MPPT Efficiency
> 99.5%
Max. Efficiency (PV/BAT->Load, PV->BAT)
≥ 96.5%, ≥ 97%
Table 2 Specifications of GMDE Powervortex306KTL -2
2.4.3 General Data
MODEL LIST
Powervortex 306KTL HI
GENERAL DATA
Operating Temperature Range [◦C]
-25 to 60 (> 45 derating)
Noise Emission [dB]
< 55
Enclosure Protection
IP65
Heat dissipation
Forced air cooling
Altitude [m]
< 2000 (no derating)
Weight [kg]
48
Dimensions [W*H*D, mm]
540*670*290
Array Insulation Resistance Detection [Ω]
> 1M
DC Disconnect
Standard VDE approved DC switch
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Ground Fault Protection
Internal GFCI and isolation detection function,
following VDE0126-1-1
Installation Mode
Wall-mounted
Humidity
< 95% RH
Communication Interface
USB/RS485
Hazard Substance Restriction
Lead free, complied with RoHS GP2
Display
Graphic: 320 × 240; function key × 5
Ta ble 3 Specifications of GMDE Powervortex 306KTL-3
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3. Installation
3.1 Operation Sequence
Important Note before Operation
In order to ensure the smooth operation of hybrid inverter and reduce the negative impact on local
load in case of inverter maintenance, we strongly recommend the users to connect the hybrid inverter
into the existing electrical system as following figure shows:
+
—
Hybrid Inverter
DC
DC
DC
DC
BAT
DC
AC
Customer
Load
PV MPPT
BAT
Bi-CONVERTER
PV Array
Battery Pack
DC
Switch
Grid
To Grid
AC Breaker
K1
DC Breaker
D1
Figure 6 Recommended system configuration
One AC breakers, K1, should be installed to connect to the AC grid.
An external DC breaker D1 (or fuse) is installed between battery packs and hybrid inverter.
(Note a DC switch is already integrated into the hybrid inverter, this DC switch cannot be used to
directly switch off the inverter when the inverter is running with power.)
Installation:
1. Please read the user manual carefully and pay special attention to the safety rules.
2. Unpack and install the inverter according to section 3.2 and section 3.3.
3. Connect PV and battery input according to section 3.4.2.
4. Connect AC grid and customer load according to section 3.4.3.
Setting:
5. Connect the PV and battery input by turning the DC switch on.
6. Set language, clock, password via LCD displayer, please refers to section 4.2.1~4.2.3.
7. Set battery packs information via LCD displayer, please refer to section 4.3.4.
8. Shutdown DC switch (for saving the parameters).
Starting:
9. Turn on AC Breaker K1.
10. Turn on DC Breaker D1.
11. Turn on DC switch of hybrid inverter.
The inverter is now ready for operation.
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Disconnecting for maintenance:
1. Turn off AC Breaker K1.
2. Turn off DC Breaker D1.
3. Turn off DC switch of hybrid inverter.
4. Wait at least 15 minutes before repairing or maintenance.
Now the hybrid inverter can be removed safely for maintenance.
5. Disconnect those cables with the inverter and then move the inverter to a suitable place for later
maintenance.
3.2 Unpacking
3.2.1 Packing List
The following items are included in the GMDE hybrid inverter package:
1. GMDE Powervortex 306KTLx 1
2. User Manual x 1
3. Certificate of Approval x 1
4. Cable Gland (for AC grid connection) x 1
5. Aviation Plug Male Connector (for AC load connection) x1
6. Expansion Bolts (M8*12mm) x 4, Flat Pad x 4, Spring Washers x 4 and Screw Nut x 4
7. Wall Bracket for the inverter x 1
3.2.2 Unpacking the Device
The inverters are loaded at their heads and packed face up to facilitate transportation. You will
therefore see the up side of the device after having opened the package. Take the device at the two
holding grips that are visible on the side and remove it from the package.
Figure 7 Front panel of GMDE Powervortex 306KTL
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3.2.3 Identifying the Inverter
Figure 8 Label of GMDE Powervortex 306KTL
3.3 Mounting
3.3.1 Assembly Site Requirements
1. The assembly site must be shaded so that the inverter can achieve the highest energy production
and the longest life.
2. The installation wall must be vertical and can carry the weight of the inverter.
3. For the assembly, it is necessary to choose a solid wall or metal construction, which comply the fire
protection class F30 and the load capacity of 60kg per unit. Relevant provisions of construction
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regulations must be observed!
4. Mount the device at an appropriate distance from combustible materials.
5. We recommend that you mount the device at eye level to ensure optimum user comfort.
6. Owing to its protection type (IP65), the device can also be mounted in outside areas.
Figure 9 Installation patterns
3.3.2 Mounting the Inverter
There are only two steps to mount the inverter. The first step is fixing the wall bracket and the second
step is mounting the inverter. All the steps are shown below by the form of illustration.
The wall bracket can be fixed to the wall by four expansion bolts (M8*12mm: thread diameter is 8mm,
nominal diameter is 12mm). Select the appropriate screw types and dimensions for the wall material
is very important.
Inverter weight and dimensions are listed as follows:
Description
Powervortex
306KTL
3-phase Transformerless Grid-tied Hybrid Inverter (maximum PV power: 6kW;
maximum battery power: 6kW; Maximum output power: 6kW)
Dimension
670mm x 540mm x 290mm
Weight
48 kg
Table 3 Information of GMDE Powervortex 306KTL
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Mount the wall bracket by the following procedure:
1. Mark the position on the wall of the bracket: Hold the wall bracket to the wall, keep the sides
vertical, and mark screw position.
2. Remove the wall bracket, and then drill holes.
3. Hold the wall bracket in position and insert all screws.
4. Fix the wall bracket by turning the screws.
The diagram of mounting the wall bracket is showed below:
Figure 10 Inverter wall bracket
Hang the inverter on the wall bracket by the following steps:
1. Move the inverter in the suitable horizon direction.
2. Make the hook on wall bracket inserting in the slot behind inverter.
3. Keep the inverter down slowly to ensure the inverter hang on the hook.
4. Check the inverter securely fixed on the wall bracket.
The inverter wall mounting procedure is shown below:
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Figure 11 Inverter wall mounting procedure
3.4 Electrical Connection
3.4.1 Connectors
The GMDE inverter is provided with the following connectors, as seen below from left to right:
1. Two pairs of PV-input terminals.
2. Integrated DC switch.
3. One pair of battery input terminal.
4. Communication-interface includes RS 485 A/B, USB.
5. One AC-output connector (L1/L2/L3/N/G), which can connect to power grid and customer load
respectively, as the Figure 11 shows.
Figure 12 Device connectors
3.4.2 DC Connection
DC Connection procedure is shown in the following steps:
1. Please double check to ensure that the DC switch is turned off before your connection!
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2. Insert PV and battery cables into the PV and battery terminals.
Figure 13 PV connection – PV input terminals
3.4.3 AC Connection
There is one AC output terminal as shown in the following figure:
Figure 14 AC output terminals
1. The “AC GRID” AC output terminal is equipped with aviation plug.
Figure 15 “AC GRID” AC output terminal-aviation plug
The female connector of the aviation plug has already been installed at the interface of the hybrid
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inverter. The male connector could be found in the packing box.
Please find the recommended AC output cable size:
Do not use cables of which losses exceed 1%.
L1 (Line 1), L2 (Line 2) L3 (Line 3), N (Neutral), G (PE): Ø 6mm 2
The detailed installation procedures of this AC output terminal is explained as following figures:
Step 1Insert the cables into male connector and
tighten in clockwise
Step 2 Tighten the covers of the male connector
Step 3 Insert male connector into female
connector
Step 4 Tighten the male connector clockwise
Figure 16 AC connection - “AC GRID” connection
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3.4.4 Communication Interface Port
Powervortex 306KTL inverter provides two types of communication ports: RS485 and USB.
Please refer to the following procedures of the communication connection.
Figure 17 Communication connection–communication interface
RS485 Configuration:
GMDE inverter uses RJ45 jacks as the RS485 communication port. The RJ45 plug pin allocation is
illustrated by Figure 18 RJ45 plug pins allocation.
Figure 18 RJ45 plug pins allocation
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Pin No.
Illustration
1
-
2
-
3
Data+
4
GND 5 GND 6 Data-
7
5V
8
5V
Table 4 RJ45 plug pins illustration
B-USB port:
Figure 19 Insert the RS485cables
*Note: The B-USB port will only be used for software update.
*3.4.5 Power Meter Installation
(This section is only for the Integrated Energy Management Solution in section 2.1 General System
Description)
The wire connection of power meter is shown as below:
1) Connect the AC grid to the power meter on the “↑” marked side. Connect the load on the other
side. Pay attention to the Neutral line connection.
2) Connect the RS485 cable to the power meter according to section 3.4.4 Communication Interface
Port: connect the terminal “7” with the pin 3 Data+; connect the terminal “8” with the pin 6
Data-(Table 4 RJ45 plug ).
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Wire connection
Connecting direction
RS485 connection-1
RS485 connection-2
Figure 20 Wire connection of power meter
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From AC GRID
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4. LCD Display
4.1 LCD Interface
All information related to the inverter can be obtained from the LCD display. There are 5 keys for
navigating in the LCD display menu. The functions of the navigating keys and indication lightings
around the LCD screen are displayed in the following:
Figure 21 LCD display
Table 5 Function introduction
Item
Symbol
Meaning
Illustration
① ▲ Up
Move back to the upper item or previous page
② ▼ Down
Move forward to down item or next page
③ Enter/ Escape
Enter into or escape from the current page
④
▼
Left
Move toward the left item or previous page
⑤ ▼ Right
Move toward the right item or next page
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4.2 Menu Structure
4.2.1 Main Menu
The energy management system has two solutions, refer to 2.1 General System Description.
The main menus of LCD are shown below, which are also the default window after the LCD is lighting.
In solution 1:
Figure 22 Main menu of LCD for solution 1
Table 6 Main menu illustration
Item
Description
①
Operating status of the inverter
②
Voltage/Current of PV group1
③
Voltage/Current of PV group2
④
Energy production of PV modules
⑤
Energy production of the hybrid inverter
⑥
Output power of AC grid
⑦
Output power of hybrid inverter
⑧
Power consumption of customer load
⑨
Time
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In solution 2:
Figure 23 Main menu of LCD for solution 2
Table 7 Main menu illustration
In solution 1, at the bottom of the main menu, by pressing the navigating keys, the different energy
information (both of DC and AC sides) could be displayed as the following figure shows.
Item
Description
①
Operating status of the inverter
②
Voltage/Current of PV group1
③
Voltage/Current of PV group2
④
Energy production of PV modules
⑤
Energy production of the hybrid inverter
⑥
Time
⑦
Three phase output Voltage/Current of hybrid inverter
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(a) DC side energy information
(b) AC side energy information
Figure 24 Energy information display
The corresponding descriptions of the abbreviations:
Epv: Total energy generated by solar panels.
Ebat-c: Total charging energy to battery packs.
Ebat-d: Total discharging energy from battery packs.
Einv: Total energy delivered by the inverter.
Egrid-d: Total energy injected to the power grid.
Egrid-c: Total energy provided by power grid to the customers.
Eload: Total energy consumption of local customers.
Press “ ” key on the Figure 22main menu and then enter into the following selection menu on which
more detailed information could be found.
Figure 25 Main selection menu
4.2.2 Energy Menu Structure
In the “Energy” submenu, all the historical data information can be found. By pressing “ ” on the
Figure 25 main selection menu, the screen enters into “Energy” menu.
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In the “Energy” menu window, all the daily, weekly and annual historical data can be displayed as
shown in Figure 26.
Figure 26 The “Energy” menu structure
4.2.3 Run Info Menu Display
The current operating status information could be found in the “Run Info” menu. By pressing “ ” on
the Figure 25 main selection menu, the screen enters into “Run Info” menu as shown in Figure 27.
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Figure 27 “Run Info” menu
By pressing“ ”, “ ” keys on the “Run Info” menu window, the current run information could be
switched between DC side (PV and battery) and AC side (grid and load).
(a) Run information on DC side
(b) Run information on AC side
Figure 28 “Run Info” menu structure
*Note: P
bat-c
, current charging power; P
bat-d
, current discharging power;
4.2.4 Fault& Alarm Menu Display
The “fault and alarm” information of the inverter operation is included in this menu. Detailed
description of the faults and warnings information can be found at section 5.3.
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Figure 29 “Fault& Alarm” menu structure
4.2.5 Setting Menu Display
Please refer to section 4.3 for the detailed setting items.
4.2.6 “Inv Info.” Menu Display
The manufacture and software version information of the inverter is stored in this menu.
Figure 30 Menu structure of inverter information
4.3 Settings
When turning on the inverter for the first time, the customer needs to finish the following initializing
settings: language setting, regulation setting, clock setting, password setting and clear data. Press
“▼”key into the main selection menu from main menu.
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Figure 31 Main selection menu
While selecting “setting” on the main selection menu and pressing “ ”to enter into the setting menu,
a message boxwill pop up(the default password is 6666).
Figure 32 Password of change settings
Press “OK” button to finish the password input; Press “Back” button to return.
By pressing “Setting” on the main selection menu, the screen enters into the “Setting” menu. The
default item is “Lan. Setting” (Language setting), as shown in Figure 33.
Figure 33 Main setting display
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4.3.1 Language Setting
Press “ ” into the default “Language” setting page. Use the navigating keys to select the language.
The default language is “English”.
Figure 34 Language setting
Press “OK” button to finish the password input; Press “Back” button to return.
4.3.2 Clock Setting
While pressing “ ”key on the main setting window, the screen enters into “Clk. setting”.
Figure 35 Selecting clock setting
In “Clk. Setting” window, use the navigating keys to set the local time.
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Figure 36 Clock setting
Press “OK” button to finish the password input; Press “Back” button to return.
4.3.3 Password Setting
While pressing “ ” key on the main setting window, the screen enters into “Pas. Setting”. The
password can be modified as shown in Figure 37.
Figure 37 Password setting
Step 1 Press “ ” into password setting window
Step 2 Use navigating keys to input the current
password (the initial password is 6666)
Step 3 Use navigating keys to input the new
password
Step 4 Input the new password again for
confirmation
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*Note:
1. In the above procedures, press “OK” button to go to the next step; Press “Back” button to return.
2. Please remember the new password if the customer changes it. Once forgetting the new password,
please contact the service center of GMDE who will help you to resume the initial password.
4.3.4 Battery Setting
While pressing “ ” key on the main setting window, the screen enters into “Bat. Setting”.
Figure 38 Selecting “Battery” setting
The Maximum Discharging current, Maximum Charging current, Discharging Stop Voltage and
Charging Stop Voltage can be set as shown in the following figure.
(a) Parameter input (b) Waiting for Setting
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(c) Setting not successful (d) Setting successfully
(e) Not supported at solution 2 (f) Not supported during the inverter running
Figure 39 Battery setting
After setting the parameters of the battery packs, shut down the DC switch and follow the setting &
starting procedures in section 3.1.
4.3.5 Local Address
Note: In solution 1 with integrated EMS, the local address will not be used since the inverter does not
communicate with any external system. In solution 2 with external EMS, the inverter is controlled by
external commands through RS485. Hence the local address is required to set up the communication
channels between inverters and energy management system.
In this menu, user could set the local address by the following procedures.
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Figure 40 Local Address setting
Note: The default setting is ‘Fixed Add. Mode’ with local address 255. Before communicating with the
external EMS, the local address should be set as fixed address( between 1 to 254) or dynamic address.
Figure 41 Default Addr. Setting window
(a) Set fixed local address(b)Select OK to confirm
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(c) Wait for setting (d) Setting successful
(e) Fixed address recognition (f) Setting failed
Figure 42 Fixed local address setting
(a) Select Dynamic Add. Mode (b) Select OK to confirm
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(c) Wait for setting (d) Setting successful
(e) Dynamic Add. Mode recognition (f) Setting failed
Figure 43 Dynamic local address setting
After the setting of local address, the address information could be observed in Inv Info. Window
show in 错误!未找到引用源。
4.3.6 Clear Data
In this menu, all the historical data can be deleted. Please ensure that you really want to delete all the
historical information before starting the following steps.
On the main setting window, select “Clear Data” item and press “ ” into the “Clear Data” window.
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Figure 44 Selecting “Clear Data”
A confirmation message box as Figure 45will pop up.
Figure 45 Message box of "Clear Data"
Press “OK” button to delete all the historical data; Press “Back” button to cancel.
4.4 Fault, Warning and Historical Information Deleting
In section 4.3.5 , all the historical data including fault and warning information can be deleted.
Besides, we also provide a way to delete the specific information by the combination use of the
navigating keys.
1. On the “energy” menu window, by pressing“ ” + “ ” keys at the same time, the following message
box will pop up.
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Figure 463 Input of data deleting password
After inputting the correct password, the following message box will pop up.
Figure 47 Energy data deleting
Press “Yes” button to delete the historical data in this page, press “No” button to cancel.
2. On the “Fault& Alarm” menu window, by pressing“ ” + “ ” keys at the same time, the following
message box will appear:
Figure 48“Fault& Alarm” data clearing
Press “Yes” button to delete all the historical “Fault& Alarm” data; Press “No” button to cancel.
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5. Troubleshooting
5.1Safety during Troubleshooting
High electric voltage! Risk of death or personal injury by electric shock!
Never work with live wires! It is prior to all connection and maintenance work.
Make sure that the AC and DC wires are not charged.
The connection area should only be opened by a licensed electrician.
Warning! Danger from residual voltage out of capacitors.
You must wait until the capacitors have fully discharged. Discharge takes around15
minutes.
Caution! Danger from inadequate grounding.
An inadequate grounding conductor connection can cause serious injuries to
persons and damage to properties.
5.2 Faults
A fault can be divided into two catalogues: a permanent failure and a temporary failure. A ‘permanent
failure’ is defined by a fault having been present for more than 15 minutes and cannot be
acknowledged by inverter’s auto-restart. Unlike permanent failure, a “transient failure" is
automatically acknowledged by the inverter. The inverter attempts to restart once the error no longer
exists. The fault is indicated on the control panel by the red "Alarm" LED emitting steady light. Most
failures are transient; therefore the system should be monitored for a while before contacting the
service as the transient failure may disappear itself.
5.3 Fault Messages and Actions List
Fault messages are stored in the fault memory even in the status of power failure. The fault data can
be retrieved to display on the screen. The latest 100 fault logs are recorded in the fault memory. The
latest fault is kept at memory location S0 while the earliest at S100.
The transient failure is shown as “Warning” while the permanent failure as “Fault”. Check ‘Warnings
and actions’ table when a transient failure occur sand check the ‘Faults and actions’ table when a
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permanent failure occurs.
Warning Message
Explanation
Action
Offset-Iac-Warning
The DC injection of grid current
is out of range.
Acknowledge error. Contact the service if the
error occurs repeatedly.
ENS-Mess-Warning
Different value between master
and slave CPU.
Wait until the controller has re-stabilized.
ENS-GFCI-Warning
Different value between master
and slave for GFCI.
Wait until the controller has re-stabilized.
Curr-Sensor-
Warning
The current sensor is abnormal.
Wait until the controller has re-stabilized.
Inverter-Curr-
Warning
Inverter current is over the
tolerable value.
Acknowledge error.
GFCI-Warning
Residual current is out of range.
Wait until the controller has re-stabilized.
GFCI-Device-
Warning
The GFCI detection circuit is
abnormal.
Wait until the controller has re-stabilized.
Zpv-PE-Warning
Isolation resistance of PV-plant
out of tolerable range before
connecting to the grid.
Check insulation of the system.
Rly-Warning
Relay is Fail.
Wait until the controller has re-stabilized.
Vac-Master-
Warning
Master-grid voltage
measurement-value out of
tolerable range.
Re-measure line voltage Service if line voltage
is within normal range.
Fac-Master-
Warning
The master-frequency is out of
tolerable range.
Check system frequency and line voltage.
Contact the Service if system frequency is
within normal range.
No-Utility
Grid voltage =0.
Re-measure line voltage Service if line voltage
is within normal range.
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Warning Message
Explanation
Action
VpvMax-Warning
PV input voltage is over the
tolerable maximum value.
Check voltage of solar cells.
Master-Slave-
Warning
Communication between
microcontrollers is failing.
Acknowledge error. Contact the service if the
error occurs repeatedly.
Temperature-
Warning
The internal temperature is out
of tolerable value.
Allow the unit to cool down. Acknowledge
error.
ENS-Vac-Warning
Different value between master
and slave for grid voltage.
Possibly caused by switching actions on the
net. Re-measure line voltage. Contact the
Service if line voltage is within normal range.
ENS-DCI-Warning
Different value between master
and slave for output DC
current.
Wait until the controller has re-stabilized.
Bus-Start-Warning
DC bus soft start is over time.
Wait until the controller has re-stabilized.
Bus-Low-Warning
DC bus voltage is too low.
Wait until the controller has re-stabilized.
Bus-High-Warning
DC bus voltage is too high.
Wait until the controller has re-stabilized.
ENS-Fac-Warning
Different value between master
and slave for grid frequency.
Check system frequency and line voltage.
Contact the Service if system frequency is
within normal range.
Boost-Curr-
Warning
Boost current is over the
tolerable value.
Acknowledge error.
PV-Connect-
Warning
PV connection type cannot be
identified.
Wait until the controller has re-stabilized.
EEPROM-Warning
EEPROM cannot be read or
written.
Wait until the controller has re-stabilized.
Boost-Start-Warning
Time limit exceeded of DC bus
soft-start.
Restart Hybrid inverter.
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Warning Message
Explanation
Action
PV Over Power
PV DC power over maximum
limit
Reduce the power of PV array, and then
restart Hybrid inverter.
Fan-LockWarning
Fan lock
Check fan.
Over-voltage of battery
banks
The battery voltage is higher
than the upper limit.
Acknowledge error. Contact the service if the
error occurs repeatedly.
Low battery voltage
The battery voltage is too low.
Check battery packs. Contact the service if
the error occurs repeatedly.
Over-current of battery
banks
The battery current is higher
than the upper limit.
Check battery packs. Contact the service if
the error occurs repeatedly.
Low battery energy
The battery energy is too low.
Check battery packs. Contact the service if
the error occurs repeatedly.
External Comm. Warning
External communication
warning.
Check RS485 communication cable
connection
Bat. Parameters warning
Please set parameter of
the Battery
Battery parameter is Zero
warning.
Set battery parameters before running
Table 8 Warnings and actions
Fault messages
Explanation
Action
GFCI-Device-Failure
The GFCI detection circuit is abnormal.
Contact the Service
Curr-Sensor Fault
The Current sensor is abnormal.
Contact the Service
Inverter-Curr-Fail
Inverter current is over the tolerable value.
Contact the Service
PV-Connect-Fail
PV connection type cannot be identified.
Contact the Service
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Fault messages
Explanation
Action
Bus-Low-Fail
DC bus voltage is too low.
Contact the Service
Bus-High-Fail
DC bus voltage is too high.
Contact the Service
ENS-Mess-Fail
Different value between master and slave.
Contact the Service
M-S Version Fail
Master and slave firmware version is
unmatched.
Contact the Service
Offset-Iac-Fail
The DC injection of grid current is out of range.
Contact the Service
Rly-Fail
Relay is Fail.
Contact the Service
Table 9 Fault sand actions
5.4 Fault Acknowledgement
After shutdown due to a fault, the device remains locked against reactivation until the fault is
acknowledged. The fault can only be acknowledged after the cause of the fault has been eliminated.
To acknowledge the fault messages, press the ESC key or turn the GMDE inverter off with the DC
switch. Wait for a while and turn the device on again.
5.5 Technical Service
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GMDE
Room 604-605, Tongpu Road No.1220, Putuo District, Shanghai 200333, P.R. China
TEL: +86 21 60710809-818
FAX: +86 21 61730300
E-mail: Service@global-mde.com
WEB: www.global-mde.com
SKYPE: GMDE Service
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6. Maintenance
6.1 Before Maintenance
Please refer to “Disconnecting for maintenance” in section3.1 Operation Sequence.
6.2 Visual Inspection
You should conduct visual inspection at least once a year. The visual inspection includes checking the
machine cover, interface and screen.
6.3 DC Switch Yearly Maintenance
To ensure the functionality of the DC switches, all switches should be turned on and off about ten
times once a year to clean the contacts.
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7. Contact
If you have any questions about our product, please contact us:
GMDE
Room 604-605, Tongpu Road No.1220, Putuo District, Shanghai 200333, P.R. China
TEL: +86 21 60710809-818
FAX: +86 21 61730300
E-mail: Service@global-mde.com
WEB: www.global-mde.com
SKYPE: GMDE Service
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