Sofar HYD 3 6K-EP Series User manual

HYD 3 …. 6K-EP
Installation and
operating manual
Version 01 | May 2022
English
HYD 3000-EP, HYD 3680-EP, HYD 4000-EP, HYD 4600-EP, HYD 5000-EP,
HYD 5500-EP, HYD 6000-EP

TABLE OF CONTENT
2 HYD 3000 ... 6000-EP
Table of Content
1About this manual 5
1.1 Copyright declaration 5
1.2 Structure of the manual 5
1.3 Scope 6
1.4 Target group 6
1.5 Symbols used 6
2Basic safety information 8
2.1 Safety information 8
2.2 Symbols and signs 12
3Product features 15
3.1 Product information 15
3.2 Labelling on the device 16
3.3 Functional features 17
3.4 Application modes 19
4Installation 22
4.1 Installation information 22
4.2 Installation procedure 23
4.3 Examination before installation 23
4.4 Connections 25
4.5 Tools 26

TABLE OF CONTENT
HYD 3000 ... 6000-EP 3
4.6 Installation location 28
4.7 Unpacking the inverter 31
4.8 Installation of the inverter 32
5Electrical connections 34
5.1 Safety instructions 34
5.2 Electrical connection 37
5.3 Connecting the PE cable 38
5.4 Connecting the DC cables 39
5.5 Connecting the battery 42
5.6 Connecting the AC power cables 44
5.7 System monitoring 51
5.8 Installation of the WiFi-, GPRS or Ethernet stick 53
5.9 Multifunctional COM Port 58
6Commissioning the inverter 72
6.1 Safety test before commissioning 72
6.2 Check before turning on inverter 72
6.3 Starting the inverter 73
6.4 Initial setup 74
7Operation of the device 78
7.1 Control panel and display field 78
7.2 Standard display 79

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4 HYD 3000 ... 6000-EP
7.3 Energy Storage Modes 80
7.4 Menu structure 84
8Troubleshooting handling 89
8.1 Troubleshooting 89
8.2 Maintenance 101
9Technical data 102

ABOUT THIS MANUAL
HYD 3000 ... 6000-EP 5
1About this manual
This manual contains important safety information that must be observed
during installation and maintenance of the device.
Carefully read this manual before use and retain it for future
reference!
This manual must be treated as an integral component of the device. The
manual must be kept in close proximity to the device, including when it is
handed over to another user or moved to a different location.
1.1 Copyright declaration
The copyright of this manual is owned by SofarSolar. It may not be
copied –neither partially nor completely –by companies or individuals
(including software, etc.) and must not be reproduced or distributed in
any form, or with the appropriate means.
SofarSolar reserves the right to final interpretation. This manual may be
amended following feedback from users or customers. Please consult
our website at http://www.sofarsolar.com for the latest version.
The current version was updated on 06/02/2023.
1.2 Structure of the manual
This manual contains important safety and installation instructions that
must be observed during installation and maintenance of the device.

ABOUT THIS MANUAL
6 HYD 3000 ... 6000-EP
1.3 Scope
This product manual describes the installation, electrical connection,
commissioning, maintenance and fault elimination procedures of the
HYD 3000 ... 6000-EP inverters.
1.4 Target group
This manual is intended for specialist electrical engineers who are
responsible for the installation and commissioning of the inverter in the
PV system, as well as the PV system operators.
1.5 Symbols used
This manual contains information on safe operation and uses symbols to
ensure the safety of persons and property as well as the efficient
operation of the inverter. Please read through the following symbol
explanations carefully in order to prevent injury or property damage.

ABOUT THIS MANUAL
HYD 3000 ... 6000-EP 7
DANGER
Non-observance will result in death or serious injury.
•Follow the warnings in order to prevent death or serious injury!
WARNING
Non-observance may result in death or serious injury.
•Follow the warnings in order to prevent serious injury!
CAUTION
Non-observance may result in minor injury.
•Follow the warnings in order to prevent injury!
ATTENTION
Non-observance may result in property damage!
•Follow the warnings in order to prevent damage to or
destruction of the product.
NOTE
•Provides tips essential to the optimal operation of the product.

BASIC SAFETY INFORMATION
8 HYD 3000 ... 6000-EP
2Basic safety information
NOTE
•If you have any questions or problems after reading the
following information, please contact SofarSolar
This chapter details the safety information pertaining to the installation
and operation of the device.
2.1 Safety information
Read and understand the instructions within this manual and familiarise
yourself with the relevant safety symbols in this chapter before beginning
with the installation of the device and eliminating any faults.
Before connecting to the power grid, you must obtain official
authorisation from the local power grid operator in accordance with the
corresponding national and state requirements. Furthermore, operation
may only be carried out by qualified electricians.
Please contact the nearest authorised service centre if any maintenance
or repairs are required. Please contact your dealer to obtain information
about your nearest authorised service centre. Do NOT carry out repairs
on the device yourself; this may lead to injury or property damage.
Before installing the device or carrying out maintenance on it, you must
open the DC switch in order to interrupt the DC voltage of the PV
generator. You can also switch off the DC voltage by opening the DC
switch in the Array junction box. Not doing this may result in serious
injury.

BASIC SAFETY INFORMATION
HYD 3000 ... 6000-EP 9
2.1.1 Qualified personnel
Personnel tasked with the operation and maintenance of the device must
have the qualifications, competence and experience required to perform
the described tasks, while also being capable of fully understanding all
instructions contained within the manual. For safety reasons, this inverter
may only be installed by a qualified electrician who:
-has received training on occupational safety, as well as the
installation and commissioning of electrical systems
-is familiar with the local laws, standards and regulations of the grid
operator.
SofarSolar assumes no responsibility for the destruction of property or
any injuries to personnel caused by improper usage.
2.1.2 Installation requirements
Please install the inverter according to the information contained in the
following section. Mount the inverter to a suitable object with a sufficient
load-bearing capacity (e.g. walls, PV frames etc.) and ensure that the
inverter is upright. Choose a suitable place for the installation of electrical
devices. Ensure that there is sufficient space for an emergency exit
which is suitable for maintenance. Ensure sufficient ventilation in order to
guarantee an air circulation for the cooling of the inverter.
2.1.3 Transport requirements
The factory packaging is specifically designed to prevent transport
damage, i.e. violent shocks, moisture and vibrations. However, the

BASIC SAFETY INFORMATION
10 HYD 3000 ... 6000-EP
device must not be installed if it is visibly damaged. In this case, notify
the responsible transport company immediately.
2.1.4 Labelling on the device
The labels must NOT be concealed by items and foreign objects (rags,
boxes, devices, etc.); they must be regularly cleaned and kept clearly
visible at all times.
2.1.5 Electrical connection
Observe all applicable electrical regulations when working with the
inverter.
DANGER
Dangerous DC voltage
•Before establishing the electrical connection, cover the PV
modules using opaque material or disconnect the PV generator
from the inverter. Solar radiation will cause dangerous voltage
to be generated by the PV generator!
DANGER
Danger through electric shock!
•All installations and electrical connections may only be carried
out by trained electricians!

BASIC SAFETY INFORMATION
HYD 3000 ... 6000-EP 11
IMPORTANT
Authorisation for grid feed-in
•Obtain authorisation from the local power grid operator before
connecting the inverter to the public power grid.
NOTE
Voiding of guarantee
•Do not open the inverter or remove any of the labels.
Otherwise, SofarSolar shall assume no guarantee.
2.1.6 Operation
DANGER
Electric shock
•Contact with the electrical grid or the device’s terminals may
result in an electric shock or fire!
•Do not touch the terminal or the conductor which is connected
to the electrical grid.
•Follow all instructions and observe all safety documents that
refer to the grid connection.
CAUTION
Burning due to hot housing
•While the inverter is being operated, several internal
components will become very hot.
•Please wear protective gloves!
•Keep children away from the device!

BASIC SAFETY INFORMATION
12 HYD 3000 ... 6000-EP
2.1.7 Repair and maintenance
DANGER
Dangerous voltage!
•Before carrying out any repair work, first switch off the AC circuit
breaker between the inverter and power grid, and then the DC
switch.
•After switching off the AC circuit breaker and the DC switch, wait
a minimum of 5 minutes before starting any maintenance or
repair work.
IMPORTANT
Unauthorised repairs!
•Following the elimination of any faults, the inverter should be
fully functional once more. Should any repairs be required,
please contact a local authorised service centre.
•The internal components of the inverter must NOT be opened
without the relevant authorisation. Shenzhen SOFARSOLAR
Co., Ltd. assumes no responsibility for any resulting losses or
defects.
2.2 Symbols and signs
CAUTION
Beware of burning hazards due to the hot housing!
•While the inverter is in operation, only touch the display and the
buttons, as the housing can become hot.

BASIC SAFETY INFORMATION
HYD 3000 ... 6000-EP 13
ATTENTION
Implement earthing!
•The PV generator must be earthed in accordance with the
requirements of the local power grid operator!
•For reasons of personal safety, we recommend that all PV
module frames and inverters of the PV system are reliably
earthed.
WARNING
Damage due to overvoltage
•Ensure that the input voltage does not exceed the maximum
permissible voltage. Overvoltage may cause long-term damage
to the inverter, as well as other damage that is not covered by
the warranty!
2.2.1 Symbols on the inverter
Several symbols pertaining to safety can be found on the inverter. Please
read and understand the content of these symbols before starting the
installation.
Symbol
Description
Residual voltage is present in the inverter! Before
opening the inverter, you should wait five minutes
to ensure that the capacitor has been fully
discharged.

BASIC SAFETY INFORMATION
14 HYD 3000 ... 6000-EP
Symbol
Description
Caution! Danger through electric shock
Caution! Hot surface
The product is compliant with EU guidelines
Earthing point
Please read the manual before installing the
inverter
Device degree of protection according to EN 60529
Positive and negative poles of the DC input voltage
The inverter must always be transported and stored
with the arrows pointing upward
RCM (Regulatory Compliance Mark)
The product meets the requirements of the
applicable Australian standards.

PRODUCT FEATURES
HYD 3000 ... 6000-EP 15
3Product features
This chapter describes the product features, dimensions and efficiency
levels.
3.1 Product information
The HYD 3000 ... 6000-EP is a grid-coupled PV and energy storing
inverter which can also supply energy in stand-alone operation. The HYD
3000 ... 6000-EP has integrated energy management functions which
cover a diverse range of application scenarios.
HYD 3000 ... 6000-EP inverters may only be used with photovoltaic
modules which do not require one of the poles to be earthed. In normal

PRODUCT FEATURES
16 HYD 3000 ... 6000-EP
operation, the operating current must not exceed the limits specified
within the technical data.
The selection of the optional inverter parts must be determined by a
qualified technician who has good knowledge of the installation
conditions.
Product dimensions
HYD 3...6K-EP:
Wall bracket:
3.2 Labelling on the device
Labelling must not be covered or removed!

PRODUCT FEATURES
HYD 3000 ... 6000-EP 17
3.3 Functional features
The DC output generated by the PV generator can be used for both grid
feed-in and battery charging.
The battery can supply the energy to the grid or the consumer. The
emergency current supply mode (EPS) can provide inductive loads such
as air conditioning systems or refrigerators with an automatic switchover
time of less than 10 milliseconds.
3.3.1 Functions
•Flexible switching between grid operation and energy storage
operation
•Charging/discharging current up to 100 A
•Parallel operation with up to 10 units
•Monitoring via RS485/WiFi/Bluetooth, optional: GPRS

PRODUCT FEATURES
18 HYD 3000 ... 6000-EP
3.3.2 Electrical block diagram

PRODUCT FEATURES
HYD 3000 ... 6000-EP 19
3.4 Application modes
3.4.1 Typical energy storage system
A typical energy storage system with PV panels and battery unit(s),
connected to the grid.
3.4.2 System without PV connection
In this configuration, there are no PV panels connected and the battery is
charged through the grid connection.
AMASS-
Storage
Battery
Normal Load
WiFi/GPRS，
RS485,USB,CAN2.0
Grid
Critical Load
Power Generation Date
Monitoring Platform
PV panels
Smart Meter
Hydbrid Inverter
AMASS-
Storage
Battery
Normal Load
WiFi/GPRS，
RS485,USB,CAN2.0
Grid
Critical Load
Power Generation Date
Monitoring Platform
Hydbrid Inverter
Smart
Meter
PV panels

PRODUCT FEATURES
20 HYD 3000 ... 6000-EP
3.4.3 System without battery
In this configuration, the battery unit(s) can be added later.
3.4.4 Back-up mode (off-grid)
When there is no grid connection, the PV panels and the battery will
provide electricity to the critical load.
AMASS-
Storage
Battery
Normal Load
WiFi/GPRS，
RS485,USB,CAN2.0
Grid
Critical Load
Power Generation Date
Monitoring Platform
Hydbrid Inverter
Smart Meter
PV panels
AMASS-
Storage
Battery
Normal Load
WiFi/GPRS，
RS485,USB,CAN2.0
Grid
Critical Load
Power Generation Date
Monitoring Platform
PV panels
Hydbrid Inverter
Smart Meter