GE GEP5.0-3-10 User manual

www.gesolarinverter.com
Grid-Tied PV Inverter
V1.0
GEP
4-20kW Three Phase
User Manual

I
User Manual V1.0-2022-05-10 Content
The information in this user manual is subject to change due to product updates or other reasons.
This manual cannot replace the product labels or the safety precautions unless otherwise speci󽗉ed.
All descriptions in the manual are for guidance only.
and other GE trademarks are trademarks of General Electric Company. All other trademarks
or registered trademarks mentioned in this manual are owned by General Electric Company.
Trademarks
Notice

II
Content User Manual V1.0-2022-05-10
CONTENT
1 About This Manual ���������������������������������������������������������IV
1.1 Applicable Model .....................................................................................IV
1.2 Target Audience .......................................................................................IV
1.3 Symbol De󽗉nition ....................................................................................IV
1.4 Updates ..................................................................................................... 1
2 Safety Precaution �����������������������������������������������������������2
2.1 General Safety...........................................................................................2
2.2 DC Side ...................................................................................................... 2
2.3 AC Side ......................................................................................................3
2.4 Inverter Installation .................................................................................. 3
2.5 Personal Requirements ............................................................................ 3
3 Product Introduction ������������������������������������������������������4
3.1 Application Scenarios...............................................................................4
3.2 Circuit Diagram ......................................................................................... 4
3.3 Supported Grid Types .............................................................................. 5
3.4 Appearance ...............................................................................................6
3.4.1 Appearance ........................................................................................................6
3.4.2 Indicators ...........................................................................................................8
3.4.3 Nameplate .........................................................................................................8
4 Check and Storage ����������������������������������������������������������9
4.1 Check Before Receiving ............................................................................ 9
4.2 Deliverables ..............................................................................................9
4.3 Storage ...................................................................................................10
5 Installation �������������������������������������������������������������������11
5.1 Installation Requirements ...................................................................... 11
5.2 Inverter Installation ................................................................................ 14
5.2.1 Moving the Inverter .........................................................................................14
5.2.2 Installing the Inverter ......................................................................................14

III
User Manual V1.0-2022-05-10 Content
6 Electrical Connection ���������������������������������������������������� 16
6.1 Safety Precautions ................................................................................. 16
6.2 Connecting the PE Cable ........................................................................ 16
6.3 Connecting the PV Input Cable .............................................................. 17
6.4 Connecting the AC Output Cable ........................................................... 25
6.5 Communication ...................................................................................... 27
6.5.1 Connecting the Communication Cable (optional) .........................................27
6.5.2 Installing the Communication Module (optional) ..........................................31
7 Equipment Commissioning ������������������������������������������� 32
7.1 Check Items Before Switching Power ON .............................................. 32
7.2 Power On ................................................................................................. 32
8 System Commissioning ������������������������������������������������� 33
8.1 Indicators and Button ............................................................................ 33
8.2 Setting Inverter Parameters via LCD ...................................................... 34
8.2.1 LCD Menu Introduction ...................................................................................34
8.2.2 Inverter Parameter Introduction .....................................................................36
8.3 Setting Inverter Parameters via App ...................................................... 38
8.4 Monitoring via Power Sight .................................................................... 38
9 Maintenance ���������������������������������������������������������������� 39
9.1 Power O󽗈 the Inverter ............................................................................ 39
9.2 Removing the Inverter ............................................................................ 39
9.3 Disposing of the Inverter ........................................................................ 39
9.4 Troubleshooting ..................................................................................... 40
9.5 Routine Maintenance ............................................................................. 43
10 Technical Parameters �������������������������������������������������� 44

IV
01 About This Manual User Manual V1.0-2022-05-10
1 About This Manual
1�1 Applicable Model
1�2 Target Audience
1�3 Symbol De󽗉nition
This manual describes the product information, installation, electrical connection,
commissioning, troubleshooting, and maintenance. Read through this manual before installing
and operating the product. All the installers and users have to be familiar with the product
features, functions, and safety precautions. This manual is subject to update without notice. For
more product details and latest documents, visit www.gesolarinverter.com.
This manual applies to trained and knowledgeable technical professionals. The technical
personnel has to be familiar with the product, local standards, and electric systems.
Di󽗈erent levels of warning messages in this manual are de󽗉ned as follows:
This manual applies to the listed inverters below (GEP for short):
Model Nominal Output Power Nominal Output Voltage
GEP4.0-3-10 4kW
3/N/PE, 220/380Vac
3/N/PE, 230/400Vac
3/N/PE, 240/415Vac
GEP5.0-3-10 5kW
GEP6.0-3-10 6kW
GEP8.0-3-10 8kW
GEP10-3-10 10kW
GEP12-3-10 12kW
GEP15-3-10 15kW
GEP20-3-10 20kW
GEP10-3-AU10 10kW
GEP8-3-AU10 8kW
DANGER
Indicates a high-level hazard that, if not avoided, will result in death or serious injury.
WARNING
Indicates a medium-level hazard that, if not avoided, could result in death or serious injury.
CAUTION
Indicates a low-level hazard that, if not avoided, could result in minor or moderate injury.
NOTICE
Highlight and supplement the texts. Or some skills and methods to solve product-related
problems to save time.

1
User Manual V1.0-2022-05-10 01 About This Manual
1�4 Updates
The latest document contains all the updates made in earlier issues.
V1�0 2021-7-30
• First Issue

2
02 Safety Precaution User Manual V1.0-2022-05-10
2 Safety Precaution
2�1 General Safety
2�2 DC Side
Notice
• The information in this document is subject to change due to product updates or other
reasons. This manual cannot replace the product labels or the safety precaution unless
otherwise speci󽗉ed. All descriptions here are for guidance only.
• Before installations, read through the user manual to learn about the product and the
precautions.
• All installations should be performed by trained and knowledgeable technicians who are
familiar with local standards and safety regulations.
• Use insulating tools and wear personal protective equipment when operating the
equipment to ensure personal safety. Wear anti-static gloves, cloths, and wrist strips when
touching electron devices to protect the inverter from damage.
• Strictly follow the installation, operation, and con󽗉guration instructions in this manual.
The manufacturer shall not be liable for equipment damage or personal injury if you do not
follow the instructions. For more warranty details, visit www.gesolarinverter.com.
Notice
The inverters are designed and tested strictly complies with related safety rules. Read and follow
all the safety instructions and cautions before any operations. Improper operation might cause
personal injury or property damage as the inverters are electrical equipment.
DANGER
Connect the DC cables using the delivered DC connectors and terminals. The manufacturer
shall not be liable for the equipment damage if other connectors or terminals are used.
WARNING
• Ensure the component frames and the bracket system are securely grounded.
• Ensure the DC cables are connected tightly and securely.
• Measure the DC cable using the multimeter to avoid reverse polarity connection. Also, the
voltage should be under the permissible range.
• The PV modules used with the inverter must have an IEC61730 class A rating.
• If there are more than 3 PV strings on input side, an additional fuse installation will be
suggested.
• When exposed to sunlight, the PV array will generate very high voltage which can cause
electrical shock hazard. Please strictly follow the instruction we provided.

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User Manual V1.0-2022-05-10 02 Safety Precaution
2�4 Inverter Installation
DANGER
• Terminals at the bottom of the inverter cannot bear much load. Otherwise, the terminals will
be damaged.
• All labels and warning marks must be clear and distinct after the installation. Do not block,
alter, or damage any label.
• Installtheinverterawayfromhighmagneticeldtoavoidelectromagneticinterference.
Ifthereisanyradioorwirelesscommunicationequipmentbelow30MHzneartheinverter,
youhaveto:
• Installtheinverteratleast30mfarawayfromthewirelessequipment.
• AddalowpassEMIlteroramultiwindingferritecoretotheDCinputcableorAC
outputcableoftheinverter.
• Warning labels on the inverter are as follows.
2�5 Personal Requirements
NOTICE
• Personnel who install or maintain the equipment must be strictly trained, learn about safety
precautions and correct operations.
• Only quali󽗉ed professionals or trained personnel are allowed to install, operate, maintain,
and replace the equipment or parts.
2�3 AC Side
WARNING
The voltage and frequency at the connecting point should meet the on-grid requirements.
An additional protective device like the circuit breaker or fuse is recommended on the AC side.
Speci󽗉cation of the protective device should be at least 1.25 times the AC output rated current.
PE cable of the inverter must be connected 󽗉rmly. The resistance between the neutral wire and
the earth cable is less than 10Ω.
You are recommended to use copper cables as AC output cables. Contact the manufacturer if
you want to use other cables.
HIGHVOLTAGEHAZARD.
Disconnectallincomingpower
andturnotheproductbefore
workingonit.
Delayeddischarge.Wait5minutes
afterpowerountilthecomponents
arecompletelydischarged.
Readthroughtheguidebefore
workingonthisdevice.
Potentialrisksexist.Wearproper
PPEbeforeanyoperations.
High-temperaturehazard.Do
nottouchtheproductunder
operationtoavoidbeingburnt.
Grounding point. Indicates the
position for connecting the PE cable.
CE marking Do not dispose of the inverter
as household waste.Discard the
product in compliance with local
laws and regulations, or send it back
to the manufacturer.
RCM marking. NA NA
5min

4
03 Product Introduction User Manual V1.0-2022-05-10
3 Product Introduction
3�1 Application Scenarios
The GEP inverter is a three-phase PV string grid-tied inverter. The inverter converts the DC power
generated by the PV module into AC power and feeds it into the utility grid. The intended use of
the inverter is as follows:
The circuit diagram of GEP8-3-US10, GEP10-3-AU10, GEP12-3-10, GEP15-3-10, and GEP20-3-10 is
as follows.
PV String Inverter Circuit
Breaker Power
Meter
DC Switch
DC Switch
EMI
Filter
EMI
Filter
EMI
Filter
EMI
Filter
EMI
Filter
DC SPD
DC SPD
AC SPD
AC SPD
EMI
Filter
DC/AC
Inverter
Circuit
DC/AC
Inverter
Circuit
LC
Filter
Output
Disconnecting
Relay
Output
Disconnecting
Relay
LC
Filter
Utility
Grid
3�2 Circuit Diagram
The circuit diagram of GEP4.0-3-10, GEP5.0-3-10, GEP6.0-3-10, GEP8.0-3-10, and GEP10-3-10 is as
follows.
PV1+
PV1-
PV2+
PV2-
L1
L2
L3
N
PE
PV1+
PV1--
PV2+
PV2-
L1
L2
L3
N
PE
MPPT1
MPPT2
MPPT1
MPPT2

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User Manual V1.0-2022-05-10 03 Product Introduction
3�3 Supported Grid Types
For the grid type with neutral wire, the N to ground voltage must be less than 10V.
Inverter Inverter Inverter Inverter
Inverter
L1
L2
L3
N
PE

PE
TN-S
L1
L2
L3
PEN
PE
TN-C

L1
L2
L3
N
PE
PE
TN-C-S

L1
L2
L3
N
PE
TT

L1
L2
L3
PE
IT


6
03 Product Introduction User Manual V1.0-2022-05-10
3�4 Appearance
3�4�1 Appearance
GEP12-3-10, GEP15-3-10, GEP20-3-10
GEP4.0-3-10, GEP5.0-3-10, GEP6.0-3-10,
GEP8.0-3-10, GEP8-3-AU10, GEP10-3-10,
GEP10-3-AU10

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User Manual V1.0-2022-05-10 03 Product Introduction
No� Parts Description
1 LED Indicator Indicates working state of the inverter.
2LCD Optional. Used to check the parameters of the inverter.
3 Button Optional. Used to control contents displayed on the
screen.
4 Grounding Point Used to connect the PE cable.
5 Mounting Plate Used to install the inverter.
6 DC Switch Start or stop DC input.
7 USB Port（USB） Reserved.
8 PV Input Terminal(PV1) Used to connect the PV module DC input cables.
9 PV Input Terminal(PV2)
10 Communication
Port(COM2) Used to connect the RS485 communication cable.
11 Communication
Port(COM1)
Used to connect communication modules like Bluetooth,
WiFi, LAN, 4G, etc.
12. Communication
Port(COM3)
Used to connect DRED or remote shutdown
communication cable.
13 AC Output Terminal Used to connect AC output cable. Connect the inverter
and the utility grid.
14 Ventilation Valve -
15 Fan Used to cool the inverter.

8
03 Product Introduction User Manual V1.0-2022-05-10
3�4�3 Nameplate
3�4�2 Indicators
GE trademark, product type, and product model
Technical parameters
Safety symbols and certi󽗉cation marks
Contact information and serial number
Type Status Description
Steady yellow Communication status is normal.
Single yellow blinking Communication is resetting or
restarting.
Double yellow
blinking
The inverter is not connected to the
router.
Quadruple yellow
blinking
The inverter is not connected to the
server.
Yellow blinking RS485 communication is normal.
O󽗈 Communication failure.
Steady green The inverter is grid-tied successfully.
O󽗈 The inverter is o󽗈-grid.
Steady red System fault.
O󽗈 No fault.
Power
Operating
Alarming
The nameplate is for reference only.
S/N
********************************** Co.,Ltd.
E-mail: **********@****.com
***-*****-**
S/N:
* * * * *

9
User Manual V1.0-2022-05-10 04 Check and Storage
4 Check and Storage
4�1 Check Before Receiving
4�2 Deliverables
Check the following items before receiving the product.
1. Check the outer packing box for damage, such as holes, cracks, deformation, and others
signs of equipment damage. Do not unpack the package and contact the supplier as soon as
possible if any damage is found.
2. Check the inverter model. If the inverter model is not what you requested, do not unpack the
product and contact the supplier.
3. Check the deliverables for correct model, complete contents, and intact appearance. Contact
the supplier as soon as possible if any damage is found.
Inverter *1 PV box *1
(optional) Mounting
plate *1
MC4 PV
connector *N
Screws *N PIN terminal *N
Documents *1
COM module *N
PE cable OT
terminal *1
AC cable OT
terminal *6
Expansion bolts
*N
PV box mounting
plate *1
(optional)
COM connector
*N
Screwdriver *1

10
04 Check and Storage User Manual V1.0-2022-05-10
NOTICE
• The PV box and PV box mounting plate will be delivered when GEP15-3-10 or GEP20-3-10 is
used in Australia only.
• The number of MC4 PV connectors and the PV terminals in the inverter is the same.
• The type and number of the communication connector are decided by the selected
communication method.
• Communication module types: WiFi, 4G, LAN, etc. The actual module delivered depends on
the communication method of the selected inverter.
• The number of expansion bolts, screws, pin terminals are various depending on di󽗈erent
inverters. The actual accessories may di󽗈er.
4�3 Storage
If the equipment is not to be installed or used immediately, please ensure that the storage
environment meets the following requirements:
1. Do not unpack the outer package or throw the desiccant away.
2. Store the equipment in a clean place. Make sure the temperature and humidity are
appropriate and no condensation.
3. The height and direction of the stacking inverters should follow the instructions on the
packing box.
4. The inverters must be stacked with caution to prevent them from falling.
5. If the inverter has been long term stored, it should be checked by professionals before being
put into use.

11
User Manual V1.0-2022-05-10 05 Installation
5 Installation
5�1 Installation Requirements
1. Do not install the equipment in a place near 󽗊ammable, explosive, or corrosive materials.
2. Install the equipment on a surface that is solid enough to bear the inverter weight.
3. Install the equipment in a well-ventilated place to ensure good dissipation. Also, the
installation space should be large enough for operations.
4. The equipment with a high ingress protection rating can be installed indoors or outdoors. The
temperature and humidity at the installation site should be within the appropriate range. (60
°C for outdoor unconditioned with solar e󽗈ects.)
5. Install the equipment in a sheltered place to avoid direct sunlight, rain, and snow. Build a
sunshade if it is needed.
6. Do not install the equipment in a place that is easy to touch, especially within children’s
reach. High temperature exists when the equipment is working. Do not touch the surface to
avoid burning.
7. Install the equipment at a height that is convenient for operation and maintenance, electrical
connections, and checking indicators and labels.
8. Install the equipment away from electromagnetic interference.
Installation Environment Requirements

12
05 Installation User Manual V1.0-2022-05-10
Installation Angle Requirements
Mounting Support Requirements
• Install the inverter vertically or at a maximum back tilt of 15 degrees.
• Do not install the inverter upside down, forward tilt, back forward tilt, or horizontally.
• The mounting support shall be non󽗊ammable and 󽗉reproof.
• Make sure that the support surface is solid enough to bear the product weight load.
• Do not install the product on the support with poor sound insulation to avoid the noise
generated by the working product, which may annoy the residents nearby.

13
User Manual V1.0-2022-05-10 03 Product Introduction
The following tools are recommended when installing the equipment. Use other auxiliary tools on
site if necessary.
Installation Tool Requirements
Goggles Safety shoes Safety gloves Dust mask RJ45 crimping
tool
Diagonal
pliers
Marker Level Heat shrink
tube Rubber hammer DC wiring
wrench
Vacuum
cleaner
Torque wrench
Cable tieMultimeter
Wire
stripper
Hammer
drill Heat gun
DC terminal
crimping tool
M3/M5

14
05 Installation User Manual V1.0-2022-05-10
5�2 Inverter Installation
5�2�2 Installing the Inverter
5�2�1 Moving the Inverter
CAUTION
Move the inverter to the site before installation. Follow the instructions below to avoid personal
injury or equipment damage.
1. Consider the weight of the equipment before moving it. Assign enough personnel to move
the equipment to avoid personal injury.
2. Wear safety gloves to avoid personal injury.
3. Keep balance when moving the equipment.
NOTICE
• Avoid the water pipes and cables buried in the wall when drilling holes.
• Wear goggles and a dust mask to prevent the dust from being inhaled or contacting eyes
when drilling holes.
• The anti-theft lock of appropriate size should be prepared by customers. Diameter of the
lock hole is 10mm.
• Make sure that all the DC input terminals are inside the PV box when installing the box.
Install the box cling to the bottom of the inverter.
Step 1 Put the mounting plate on the wall horizontally and mark positions for drilling holes.
Step 2 Drill holes to a depth of 80mm using the hammer drill. The diameter of the drill bit should
be 10mm.
Step 3 Secure the mounting plate using the expansion bolts.
Step 4 Install the inverter on the mounting plate.
Step 5 Tighten the nuts to secure the mounting plate and the inverter.
Step 6 Install the anti-theft lock.
Step 7 (For Australia only) Install the PV box and the PV box mounting plate together using the
delivered M5 screws.
Step 8 (For Australia only) Drill holes to a depth of 60mm using the hammer drill. The diameter of
the drill bit should be 8mm.
Step 9 (For Australia only) Secure the PV box at the bottom of the inverter using the delivered
expansion bolts.

15
User Manual V1.0-2022-05-10 05 Installation
NOTICE
The PV box should be installed when GEP15-3-10 or GEP20-3-10 is used in Australia only. Install
the cover of the PV box after connecting the DC input cable to the equipment. Otherwise, the
DC input cable cannot be connected.
M5
1.2~2N·m
89
7