Sofar solar HYD 5KTL-3PH User manual

HYD 5 …20KTL-3PH
Installation and
operating manual
Version 01 | May 2022
English
HYD 5KTL-3PH, HYD 6KTL-3PH, HYD 8KTL-3PH, HYD 10KTL-3PH, HYD
15KTL-3PH, HYD 20KTL-3PH

TABLE OF CONTENT
2HYD 5K...20KTL-3PH
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 Product dimensions 16
3.3 Labelling on the device 17
3.4 Functional features 17
3.5 Application modes 20
3.6 Connecting GTX 3000-H batteries 25
4Installation 28
4.1 Installation information 28
4.2 Installation procedure 29
4.3 Examination before installation 29
4.4 Connections 32

TABLE OF CONTENT
HYD 5K...20KTL-3PH 3
4.5 Tools 33
4.6 Installation Environment Requirements 34
4.7 Installation location 35
4.8 Unpacking the inverter 36
4.9 Installation of the inverter 37
5Electrical connections 39
5.1 Safety instructions 39
5.2 Wiring overview 42
5.3 System overview 43
5.4 Electrical connection 47
5.5 Connecting the PE cables 47
5.6 Connecting the DC lines for the PV modules and battery 49
5.7 Connecting the AC power cables 52
5.8 AC connector installation 54
5.9 Communication interfaces 57
5.10 Feed-in limitation function 75
5.11 System monitoring 78
5.12 Installation of the WiFi-, GPRS or Ethernet stick 79
6Commissioning the inverter 85
6.1 Safety test before commissioning 85
6.2 Double Check 85
6.3 Starting the inverter 86

TABLE OF CONTENT
4HYD 5K...20KTL-3PH
6.4 Initial setup 86
7Operation of the device 93
7.1 Control panel and display field 93
7.2 Standard display 94
7.3 Energy storage modes 95
7.4 Menu structure 99
7.5 Firmware update 107
8Troubleshooting handling 109
8.1 Troubleshooting 109
8.2 Error list 111
8.3 Maintenance 124
9Technical Data 125

ABOUT THIS MANUAL
HYD 5K...20KTL-3PH 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 20/07/2022.
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
6HYD 5K...20KTL-3PH
1.3 Scope
This product manual describes the installation, electrical connection,
commissioning, maintenance and fault elimination procedures of the
HYD 5K...20KTL-3PH 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 5K...20KTL-3PH 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
8HYD 5K...20KTL-3PH
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

BASIC SAFETY INFORMATION
HYD 5K...20KTL-3PH 9
DC switch in the Array junction box. Not doing this may result in
serious injury.
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.

BASIC SAFETY INFORMATION
10 HYD 5K...20KTL-3PH
2.1.3 Transport requirements
The factory packaging is specifically designed to prevent transport
damage, i.e. violent shocks, moisture and vibrations. However, the
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
Solar 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 5K...20KTL-3PH 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 5K...20KTL-3PH
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

BASIC SAFETY INFORMATION
HYD 5K...20KTL-3PH 13
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.
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!

BASIC SAFETY INFORMATION
14 HYD 5K...20KTL-3PH
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.
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 5K...20KTL-3PH 15
3Product features
This chapter describes the product features, dimensions and
efficiency levels.
3.1 Product information
The HYD 5K...20KTL-3PH is a grid-coupled PV and energy storing
inverter which can supply energy in stand-alone operation. The HYD
5K...20KTL-3PH has integrated energy management functions which
cover a wide range of application scenarios.
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

PRODUCT FEATURES
16 HYD 5K...20KTL-3PH
HYD 5K...20KTL-3PH inverters may only be used with photovoltaic
modules which do not require one of the poles to be earthed. In
normal 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.
3.2 Product dimensions

PRODUCT FEATURES
HYD 5K...20KTL-3PH 17
3.3 Labelling on the device
Labelling must not be covered or removed!
3.4 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, and a temporary
overload of up to 10% is possible.
3.4.1 Functions
1. Two MPP trackers with 1.5-fold DC overload
2. Flexible switching between on-grid operation and energy storage
operation

PRODUCT FEATURES
18 HYD 5K...20KTL-3PH
3. Maximum efficiency when charging and discharging the battery
(97.8%)
4. Up to 2 battery strings with a combined maximum charging and
discharging current of 50 A
5. Wide battery input voltage range (180–800 V)
6. The EPS output can be connected to unbalanced loads
7. Up to 10 inverters can operate in parallel at the EPS connection
and AC connection
8. Monitoring via RS485 and WiFi, optionally via Bluetooth/GPRS

PRODUCT FEATURES
HYD 5K...20KTL-3PH 19
3.4.2 Electrical block diagram

PRODUCT FEATURES
20 HYD 5K...20KTL-3PH
3.5 Application modes
3.5.1 Typical energy storage system
A typical energy storage system with PV panels and battery unit(s),
connected to the grid.
3.5.2 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