Samil Power SP-SR-V5-EN User manual

SolarRiver PV Grid-tied Inverter
Product Manual
TM
SP-SR-V5-EN
Samil Power
Expert for PV Grid-tied Inverters

1
The copyright of this manual belongs to Samil Power Co., Ltd. Any corporation or individual
should not plagiarize, partially copy or fully copy it (including software, etc.) , and no reproduc-
tion or distribution of it in any form or by any means. All rights reserved.Samil Power reserves
the right of final interpretation. This information is subject to changes without notice.
Copyright Declaration

2

Contents
1 NOTES ON THIS MANUAL .......................................................................................................... 5
1.1 SCOPE OF VALIDITY .................................................................................................................................... 5
1.2 TARGET GROUP........................................................................................................................................... 5
1.3 SYMBOLS USED .......................................................................................................................................... 5
2 SAFETY..........................................................................................................................................6
2.1 APPROPRIATE USAGE .................................................................................................................................. 6
2.2 IMPORTANT SAFETY INSTRUCTIONS ............................................................................................................ 6
2.3 EXPLANATION OF SYMBOLS ........................................................................................................................ 7
3 INTRODUCTION ...........................................................................................................................9
3.1 BASIC FEATURES..........................................................................................................................................9
3.2 ELECTRICAL BLOCK DIAGRAM .................................................................................................................... 9
3.3 DIMENSION AND WEIGHT.......................................................................................................................... 10
4 TECHNICAL DATA ......................................................................................................................11
4.1 INPUT (DC)................................................................................................................................................11
4.2 OUTPUT (AC) ............................................................................................................................................12
4.3 EFFICIENCY,SAFETY AND PROTECTION .................................................................................................... 12
4.4 GENERAL DATA..........................................................................................................................................13
5 FUNCTION ...................................................................................................................................13
6 INSTALLATION ...........................................................................................................................15
6.1 PACKAGING................................................................................................................................................15
6.2 INSTALLATION PRECAUTION...................................................................................................................... 16
6.3 PREPARATION.............................................................................................................................................17
6.4 INSTALLATION STEPS ................................................................................................................................ 17
6.5 CONNECTIONS OF THE PV POWER SYSTEM................................................................................................ 18
6.6 RUN THE INVERTER ....................................................................................................................................23
3

4
7 OPERATION METHOD ............................................................................................................... 24
7.1 CONTROL PANEL ........................................................................................................................................24
7.2 LCD FUNCTION .........................................................................................................................................25
7.3 LCD INFORMATION....................................................................................................................................27
8 COMMUNICATION AND MONITORING ................................................................................... 29
8.1 COMMUNICATION INTERFACE .................................................................................................................... 29
8.2 COMMUNICATION.......................................................................................................................................29
9 TROUBLESHOOTING ................................................................................................................. 32
9.1 TROUBLESHOOTING ................................................................................................................................... 32
9.2 ROUTINE MAINTENANCE ........................................................................................................................... 34
10 DECOMMISSIONING ................................................................................................................ 35
10.1 DISMANTLING THE INVERTER .................................................................................................................. 35
10.2 PACKAGING...............................................................................................................................................35
10.3 STORAGE ..................................................................................................................................................35
10.4 DISPOSAL..................................................................................................................................................35
11 CONTACT SAMIL POWER ........................................................................................................ 36

5
1 Notes on This Manual
Notes on This Manual
This manual is an integral part of the inverter, Please read the product manual carefully
before installation, operation or maintenance. Keep this product manual for future reference.
1.1 Scope of Validity
This installation guide describes the assembly, installation, commissioning, maintenance and
failure search of the following Samil Power SolarRiver Series inverters.
SR1K5TLA1 SR2K2TLA1 SR2K8TLA1
SR3K3TLA1 SR4K4TLA1 SR4K4TLA1-PT SR5KTLA1
Store this manual where it will be accessible at all times.
1.2 Target Group
This manual is for qualified personnel. The tasks described in this manual must only be performed
by qualified personnel.
1.3 Symbols Used
The following types of safety instructions and general information appear in this document as
described below.
Danger !
Danger indicates a hazardous situation which, if not avoided, will result in
death or serious injury.
Warning !
Warning indicates a hazardous situation which, if not avoided, could result
in death or serious injury.
Caution !
Caution indicates a hazardous situation which, if not avoided, could result
in minor or moderate injury.
Note !
Note provides tips that are valuable for the optimal operation of your
product.

6
2 Safety
Safety
2.1 Appropriate Usage
The SolarRiver Series is a PV inverter which converts the DC current of a PV generator into AC
current and feeds it into the public grid.
Figure 1 PV Grid-tied System
2.2 Important Safety Instructions
Danger !
Danger to life due to high voltages in the inverter!
Caution !
Danger of burn injuries due to hot enclosure parts!
Caution !
Possible damage to health as a result of the effects of radiation!
Note !
GridPV Module Grid-tied Inverter
• All work on the inverter must be carried out by qualified personnel only.
• The appliance is not to be used by children or persons with reduced physical
sensory or mental capabilities, or lack of experience and knowledge, unless
they have been given supervision or instruction.
• Children should be supervised to ensure that they do not play with the
appliance.
During operation, the upper lid of the enclosure and the enclosure body may
become hot.
• Only touch the lower enclosure lid during operation.
• Do not stay closer than 20 cm to the inverter for any length of time.
Grounding the PV generator. Comply with the local requirements for
grounding the PV modules and the PV generator. Samil Power recommends
connecting the generator frame and other electrically conductive surfaces in a
manner which ensures continuous conduction and ground these in order to have
optimal protection of the system and personnel.

7
Warning !
Safety
2.3 Explanation of Symbols
●Symbols on the Inverter
Symbol Explanation
Danger of high voltages
Danger to life due to high voltages in the inverter!
Caution, risk of electric shock!
Only authorized personnel is allowed to set the DIP switch.
●Symbols on the Type Label
Symbol Explanation
●Important Safety Instructions
This section gives an explanation of all the symbols shown on the inverter and on the type label.
Danger to life due to high voltages in the inverter!
There is residual voltage in the inverter. The inverter requires
5 minutes to discharge.
• Wait 5 minutes before you open the upper lid or the DC lid.
Beware of hot surface.
The inverter can become hot during operation. Avoid contact during
operation.
5min
CE mark.
The inverter complies with the requirements of the applicable
CE guidelines.
When using the product, please do remember the below information to avoid the fire, lightning
or other personal injury:
Ensure input DC voltage ≤ Max. DC voltage .Over voltage may
cause permanent damage to inverter or other losses, which will not
be included in warranty! This chapter contains important safety and
operating instructions. Read and keep this Operation Guide for
future reference.

8
Safety
Warning !
Authorized service personnel must disconnect both AC and DC power
from the SolarRiver Series inverter before attempting any maintenance
or cleaning or working on any circuits connected to the SolarRiver
Series inverter.
● Before using the SolarRiver Series inverter, read all instructions and cautionary markings on
the SolarRiver Series inverter, and all appropriate sections of this guide.
● Use only attachments recommended or sold by Samil Power. Doing otherwise may result in a
risk of fire, electric shock, or injury to persons.
● To avoid a risk of fire and electric shock, make sure that existing wiring is in good condition and
that wire is not undersized. Do not operate the SolarRiver Series inverter with damaged or
substandard wiring.
● Do not disassemble the SolarRiver Series inverter. It contains no user-serviceable parts. See
Warranty for instructions on obtaining service. Attempting to service the SolarRiver Series
inverter yourself may result in a risk of electric shock or fire and will void your warranty.
● To reduce the risk of electric shock,authorized service personnel must disconnect both AC and
DC power from the SolarRiver Series inverter before attempting any maintenance or cleaning
or working on any circuits connected to the SolarRiver Series inverter. Turning off controls will
not reduce this risk.
● Keep away from flammable, explosive materials to avoid fire disaster.
● The installation place should be away from humid or corrosive substance.
● To avoid electric shock accident, please do not disassemble the inverter because there are
high-voltage capacitances installed inside the inverter. Fatal High-voltage will remain in the
inverter after its disconnection with grid after 5 minutes.
● To reduce the chance of short-circuits, authorized service personnel must use insulated tools
when installing or working with this equipment.

9
Introduction
3 Introduction
3.1 Basic Features
Advanced MCU control technology.
Utilize the latest high-efficiency power component.
Optimal MPPT technology.
Advanced anti-islanding solutions.
Excellent protections.
IP65 protection level.
Efficiency up to 97.6%.
THD ＜3%.
Safe & Reliable: transformerless design with software and hardware protection.
Friendly HMI.
LED status indications.
RS485/RS232 communication interface.
PC remote control.
3.2 Electrical block diagram
●Electrical block diagram
Figure 2 Electrical block diagram
Congratulations on your purchase of a SolarRiver Series inverter from Samil Power. The SR
Series inverter is one of the finest inverter on the market today, incorporating
state-of-the-art technology, high reliability, and convenient control features.
LCD display technical data, Human-Machine interaction through press key.
Step-up
DC/DC
Converter
for
MPP
Tracking
+
-
-
+
Inverter
PV
Insulation
Detection
MCU A MCU B
L
N
PE
ACoutputterminal
RCMU
LCD/RS485 RS232
DC input terminal

10
Caution !
Introduction
●Terminals of PV inverter
Figure 3 Terminals of PV inverter(1.5 kW~2.8 kW)
Terminals of PV inverter(3.3 kW~5 kW)
Figure 4
3.3 Dimension and Weight
●Dimension
Figure 5 SR1K5TLA1/SR2K2TLA1/SR2K8TLA1
About SF-SW. Risk of electric shock！Only authorized personnel is
allowed to set the DIP switch.
RS485
RS232
DC Input AC Output
SF-SW
450mm
332mm 161mm
RS485
RS232
DC Input AC Output
SF-SW

11
Technical Data
329mm 180mm
Figure 6 SR3K3TLA1/SR4K4TLA1/SR4K4TLA1-PT/SR5KTLA1
●Weight
Table 1 Weight
4 Technical Data
4.1 Input (DC)
SolarRiverSolarRiver
SR5KTLA1
Function
Normal
Fault
433mm
Model SR1K5TLA1 SR2K2TLA1 SR2K8TLA1 SR3K3TLA1 SR4K4TLA1 SR4K4TLA1-PT SR5KTLA1
Weight [kg] 17.1 17.5 17.9 18.9 19.2 19.2 19.4
180-500 200-500 210-500 200-500 200-500 200-500 200-500
Model SR1K5TLA1 SR2K2TLA1 SR2K8TLA1 SR3K3TLA1 SR4K4TLA1 SR4K4TLA1-PT SR5KTLA1
Max. DC power
[W] 1700 4000 5200
Max. DC voltage
[V] 550
Max. input
Current [A] 9 11 13.5 17.5 22 22 26
Number of MPP
trackers / Strings
per MPP tracker
2/11/1
MPPT voltage
range (at rated
power) [V]
Shutdown
voltage / Start
voltage [V]
70 / 100
2300 3000 3480 4580

12
Technical Data
4.2 Output (AC)
Model SR1K5TLA1 SR2K2TLA1 SR2K8TLA1 SR3K3TLA1 SR4K4TLA1 SR4K4TLA1-PT SR5KTLA1
SR1K5TLA1 SR2K2TLA1 SR2K8TLA1 SR3K3TLA1 SR4K4TLA1 SR4K4TLA1-PT SR5KTLA1
AC nominal power
[W] 1500 2000 2600 3000 4000 4600
Max. AC power [W] 1650 2200 2800 3300 4400 5000
Max. AC current [A] 8.6 11 13.8 16 22 24
Nominal AC voltage
/ range [V] 230 / 180~270*
AC grid frequency /
range [Hz] 50 / 47~52*
Power factor (cosφ) 1
Total harmonic
distortion (THDi)
(at nominal power)
< 3%
＊Detailed parameter please see local grid standard.
4.3 Efficiency, Safety and Protection
Model
Max. efficiency 96.8% 96.8% 97.0% 97.4% 97.6% 97.6%
Euro-efficiency 95.8% 96.2% 96.3% 96.5% 97.1%
97.6%
97.1% 96.8%
MPPT efficiency 99.9%
Safety & Protection
Overvoltage / under-
voltage protection Yes
DC isolation imped-
ance monitoring Yes
Ground fault
protection Yes
Grid monitoring Yes
Ground fault current
monitoring Yes
DC injection
monitoring Yes
3680
3680
16

13
Technical Data
4.4 General Data
Model
Dimension
(W/H/D) [mm] 332 / 450 / 161 329 / 433 / 180
Weight [kg] 17.1 17.5 17.9 18.9 19.2 19.4
Cooling concept Convection Convection Convection Convection Fan Fan
Noise (typical) [dB] <30 <30 <30 <30 <40
19.2
Fan
<40 <40
Operating tempera-
ture range [°C] -20 °C ～+60 (derating at 45 °C)
Degree of protection IP65
Topology Transformerless
Internal consum-
ption( night ) [W] 0
LCD display Backlight, 16*2 character LCD
Communication
interfaces RS485 / RS232
Standard warranty 5 years
SR1K5TLA1 SR2K2TLA1 SR2K8TLA1 SR3K3TLA1 SR4K4TLA1 SR4K4TLA1-PT SR5KTLA1

14
Function
5 Function
Operation Mode
【Stand-by Mode 】
The stand-by mode means that the inverter is ready to but still not connect to the grid.
Under this mode, it will continue check if PV array has enough power to feedback into
grid. When the inverter passes dump load test after startup, it will change from stand-by
mode to Checking mode.
【Checking Mode 】
If inverter passed dump load test and no error/fault occurs, starts checking to deliver
power.
【On-grid Mode 】
CAUTION!
【MPPT Mode 】
The default setting is MPPT mode, the operation mode will return to MPPT after
DC&AC restart.
【Fault Mode 】
If any fault/error occurs, inverter stop delivering power until the fault/error is clear. Some
fault/error will auto recover, and some may need manual restart.
【Setting Mode 】
The user can get into the setting mode by press “Function” key for 5 seconds if DC exists.
Please refer to operation method in chapter 7 for detailed information.
The inverter decreases the output power is normal in the condition of
thermal protection, but if this phenomenon occurs frequently, you need
to check the heatsink and the fan, or consider putting the inverter in the
place where have better air flow. If the fan is too dirty, please clean it,
and if output power decreases caused by electrical, please ask for
professional supports.
Under this mode, SR series inverters convert PV array’s DC into AC and feedback into grid.

15
Installation
6 Installation
6.1 Packaging
Type Project
No. Description QTY Remark
Equipment 1 PV Grid-tied Inverter 1 unit
Installation Kit
include: M5
flange nut,
expansion
screw, M5
screw rivet.
Accessories 2 Backboard 1 pc
Accessories
3 Installation Kit 1 set
4 AC connector 1 pc
5 DC connector assembly 1 / 2
Files
6 Packing list 1 pc
7 1 pc
8 Product manual
Warranty card
1 pc
9
Quality certificate
1 pc
SolarRiver PV Grid-tied Inverter
Product Manual
TM
SP-SR-V5-EN
Samil Power
Expert for PV Grid-tied Inverters

16
Installation
1.5-2.8 kW Inverter Backboard 3.3-5 kW Inverter Backboard
Warning !
Note !
Inverters must be installed by qualified person.
6.2 Installation precaution
Checking environment where system is installed.
Check whether the installation site does not fall into any of the following conditions:
●The ambient temperature is outside the range of tolerable ambient temperature ( -20°C
to +60°C, -4°F to +140°F,).
●Higher than the altitude of about 2,000 m above sea level.
●Prone to be damaged by sea water.
●Close to corrosive gas or liquid (for example, locations where chemicals are processed
or the location where feed lots of poultry).
●Exposed to direct sunlight.
●Prone to be flooded or high levels of snow pack.
190.7mm
before installation and maintenance, AC and DC side doesn’t carry
electricity, but if DC side is just disconnected, capacitance still contains
electricity, so please wait for at least 5 minutes to ensure the capacitors
completely release the energy and inverter is not electrified.

17
Installation
●Little or no air flow and high humidity.
●Exposed to steam, vapor, or water.
●Exposed to direct cool air.
●Near the television antenna or antenna cable.
●
Table 2 Available Space Size
Position Min. Size
Side 30cm
Top 30cm
Bottom 30cm
Front 10cm
6.3 Preparation
Below tools are needed before installation.
Installation Tools
6.4 Installation Steps
Step1:
Ventilation is not enough to cool the inverter, that is to say, outdoors, the inverter requires.
At least 30 cm (see table 2) of clearance among the units is needed, it is recommended
that the same clearance between the units and the ground be used. Installing the inverter
in the place mentioned above may cause the malfunction of the system caused by water
or high temperature inside the inverter. Please let users know that Samil Power will not
compensate the fault caused by the above situation.
Installation Tools: crimping pliers for binding post and RJ11, screwdriver and manual wrench
and ф 6 driller.
Drill holes in the wall with ф 6 driller according to the size of bracket. Keep drilling
vertical to the wall, and don’t shake when drilling to avoid damage to the wall.
SolarRiverSolarRiver
SR5KTLA1
Function
Normal
Fault
30cm30cm
30cm30cm
10cm

18
Installation
Figure 7 Installation of Expansion Pipe
Step2:
Figure 8 Bracket Installation
Step3:
Step 4: Use M5 flange nut to fix the bottom of the inverter.
Step 5: Complete the installation process.
6.5 Connections of the PV power system
●PV String
The depth of the holes should be about 30mm and should be the same. After removing the dust
in the holes, measure the net depth of the holes. If the depth is more than 33mm or less than
27mm, the expansion tubes wouldn’t be installed and tightened.
Expansion Screw
Expansion Pipe
Clean all dust outside/inside the hole and measure pitch-row before installation. It need
repositioning and drilling holes if the hole with much error. Then put expansion pipe into
the hole vertically, use rubber hammer to tap the pipe into the wall completely. After that,
twist 2 screws into 2 corresponding pipes, another 2 screws should be twisted into pipes
with gasket.
Use the bracket to install the inverter onto the narrow vertical panel (or wall). Put upper
-part holes of the inverter onto the bracket, lower part onto the M5 screw rivet of the
bracket (See figure 8).