opti-solar Sp4000 Premium User manual

Sp4000 Premium
Hybrid PV Inverter User manual
Version: 1.2
User Manual

Table o Contents
1. Introduction ........................................................................ 1
2. Important Safety Warning .................................................... 2
3. Unpacking & Overview......................................................... 4
4. Insta ation ......................................................................... 5
4. Grid (Uti ity) Connection ...................................................... 7
6. PV Modu e (DC) Connection ................................................. 9
7. Battery Connection ............................................................ 12
8. Load (AC Output) Connection ............................................ 13
9. EMS Connection ................................................................ 15
10. Generator connection ........................................................ 15
12. Communication ................................................................. 16
13. Dry Contact Signa ............................................................. 17
14. App ication with Energy Meter ............................................ 19
15. Commissioning .................................................................. 20
16. Initia Setup ...................................................................... 21
17. Operation ......................................................................... 32
18. Charging Management ....................................................... 41
19. Maintenance & C eaning .................................................... 43
20. Troub e Shooting ............................................................... 44
21. Specifications .................................................................... 47
22. Para e Operation .............................................................. 49

1
1. Introduction
This hybrid PV inverter can provide power to connected oads by uti izing PV power,
uti ity power and battery power.
Figure 1: Basic hybrid PV System Overview
Depending on different power situations, this hybrid inverter is designed to generate
continuous power from PV so ar modu es (so ar pane s), battery, and the uti ity. When MPP
input vo tage of PV modu es is within acceptab e range (see specification for the detai s),
this inverter is ab e to generate power to feed the grid (uti ity) and charge battery. This
inverter is on y compatib e with PV modu e types of sing e crysta ine and po y crysta ine.
Do not connect any PV array types other than these two types of PV modu es to the
inverter. Do not connect the positive or negative termina of the so ar pane to the ground.
See Figure 1 for a simp e diagram of a typica so ar system with this hybrid inverter.
Note: By fo owing the EEG standard, every inverter so d to German areas is not a owed
to charge battery from Uti ity. The re evant function is initia y disab ed by the
software.
PV modu e
Battery
Hybrid inverter
Distribution Box
E ectric grids
Load

2
2. Important Sa ety Warning
Be ore using the inverter, please read all instructions and cautionary
markings on the unit and this manual. Store the manual in a place where
it can be accessed to easily.
This manua is for qua ified personne . The tasks described in this manua shou d
be performed by qua ified personne on y.
General Precaution:
WARNING! Before insta ing and using this inverter, read a instructions and cautionary
markings on the inverter and a appropriate sections of this guide.
WARNING! Norma y grounded conductors may be ungrounded and energized when a
ground fau t is indicated.
WARNING! This inverter is heavy. It shou d be ifted by at east two persons.
CAUTION! Authorized service personne shou d reduce the risk of e ectrica shock by
disconnecting AC, DC and battery power from the inverter before attempting any
maintenance, c eaning or working on any circuits connected to the inverter. Turning off
contro s wi not reduce this risk. Interna capacitors can remain charging for 5 minutes
after disconnecting a sources of power.
CAUTION! Do not disassemb e this inverter by yourse f. It contains no user-serviceab e
parts. Attempting to service this inverter by yourse f may cause a risk of e ectrica shock
or fire and wi void the warranty from the manufacturer.
CAUTION! To avoid a risk of fire and e ectric shock, make sure that existing wiring is in
good condition and that the wire is not undersized. Do not operate the Inverter with
damaged or substandard wiring.
Conventions used:
WARNING! Warnings identify conditions or practices that cou d resu t in persona
injury;
CAUTION! Caution identify conditions or practices that cou d resu t in damaged to the
unit or other connected equipment.

3
CAUTION! Under environment of high temperature, the cover of this inverter cou d be
hot enough to cause skin burns if accidenta y touched. Ensure that this inverter is away
from norma traffic f ow.
CAUTION! Use on y recommended accessories from insta er. Otherwise, not-qua ified
too s may cause a risk of fire, e ectric shock, or injury to persons.
CAUTION! To reduce risk of fire hazard, do not cover or obstruct the coo ing fan.
CAUTION! Do not operate the Inverter if it receives a sharp b ow, drops, or otherwise is
damaged in any way. If the Inverter is damaged, p ease ca for an RMA (Return Materia
Authorization).
CAUTION! AC breaker, DC switch and Battery circuit breaker are used as disconnected
devices and these disconnected devices sha be easi y accessib e.
Symbols used in Equipment Markings
Refer to the operating instructions
Caution! Risk of danger
Caution! Risk of e ectric shock
Caution! Risk of e ectric shock. Energy storage timed
discharge for 5 minutes.
Caution! Hot surface
Be ore working on this circuit
-Iso ate inverter/Uninterruptib e Power System (UPS)
-Then check for Hazardous Vo tage between a
termina s inc uding the protective earth.
Risk o Voltage Back eed

4
3. Unpacking & Overview
3-1. Packing List
Before insta ation, p ease inspect the unit. Be sure that nothing inside the package is
damaged. You shou d have received the fo owing items inside the package:
Inverter unit PV connectors EMS port Software CD Manua USB cab e
3-2. Product Overview
1) PV connectors
2) AC output connectors (Load
connection)
3) Battery connectors
4) AC Grid connectors
5) Dry contact
6) USB communication port
7) RS-232 communication port
8) Inte igent s ot
9) Grounding
10)Emergency power off (EPO)
11) EMS port
12) DC Switch
13) Generator connectors
14) Para e communication ports
15) Current sharing ports
16) LCD disp ay pane (P ease check
section 10 for detai ed LCD
operation)
17) Operation buttons

5
4. Installation
4-1. Selecting Mounting Location
Consider the fo owing points before se ecting where to insta :
Do not mount the inverter on f ammab e construction materia s.
Mount on a so id surface
This inverter can make noises which may be a nuisance in a iving area during
operation.
Insta this inverter at eye eve to faci itate the readabi ity of LCD disp ay at a
times.
For proper air circu ation to dissipate heat, ensure a c earance of approx. 20 cm to
the side and approx. 50 cm above and be ow the unit.
Dusty conditions on the unit may impair the performance of this inverter.
The ambient temperature shou d be between 0°C and 40°C and re ative humidity
shou d be between 5% and 85% to ensure optima operation.
The recommended insta ation position is to be adhered to the vertica .
For proper operation of this inverter, p ease use appropriate cab es for grid
connection.
The po ution degree of the inverter is PD2. Se ect an appropriate mounting
ocation. Insta the so ar inverter in a protected area where is dry, free of
excessive dust and has adequate air f ow. Do NOT operate it where the
temperature and humidity is beyond the specific imits. (P ease check the specs for
the imitations.)
Insta ation position sha not prevent access to the disconnection means.
This inverter is designed with IP20 standard and it’s for indoor app ications on y.
Regu ar y c ean the fan fi ter.
4-2. Mounting Unit
Insta ation to the wa shou d be carried out with the proper screws. Under this
condition, the device shou d be bo ted on secure y.
The inverter can on y be used in a CLOSED ELECTRICAL OPERATING AREA. On y service
person can enter this area.
WARNING!! Remember that this inverter is heavy! P ease be carefu when ifting it
out from the package.
WARNING!! FIRE HAZARD.
SUITABLE FOR MOUNTING ON CONCRETE OR OTHER NON-COMBUSTIBLE SURFACE
ONLY.

6
1. Dri four ho es in the marked
ocations with four screws.
2. P ace the unit on the surface and a ign
the mounting ho es with the four
screws.
3. Check if the so ar inverter is firm y
secured.
Note: Recommended specs for screws.

7
5. Grid (Utility) Connection
5-1. Preparation
Before connecting to AC uti ity, p ease insta a separate AC circuit breaker between
inverter and AC uti ity. This wi ensure the inverter can be secure y disconnected during
maintenance and fu y protected from over current of AC input.
NOTE1: A though this inverter is equipped with 250VAC/40A fuse, it’s sti necessary to
insta a separate circuit breaker for safety consideration. P ease use
250VAC/40A circuit breaker between inverter and AC uti ity.
NOTE2: The overvo tage category of the AC input is III. It shou d be connected to the
power distribution.
WARNING! It's very important for system safety and efficient operation to use
appropriate cab e for grid (uti ity) connection. To reduce risk of injury, p ease
use the proper size of cab e recommended be ow.
Suggested cab e required for AC wire:
Nomina Grid Vo tage 230VAC
Conductor cross-section (mm
2
) 6
AWG no. 10
5-2. Connecting to the AC Utility
Step 1: Check the grid vo tage and frequency with an AC vo tmeter. It shou d be the
same to “VAC” va ue on the product abe .
Step 2: Turn off the circuit breaker.
Step 3: Remove insu ation s eeve of the three
conductors 10 mm away, and shorten phase
L and neutra conductor N to maximum 3
mm. Refer to chart 1.
Step 4: Connect wires proper y to the simi ar po arities indicated on termina b ock. Be
sure to connect PE protective conductor ( ) first.
L→
→→
→LINE (brown or black)
→
→→
→Ground (yellow-green)
N→
→→
→Neutral (blue)
Step 5: Make sure the wires are secure y connected.
The reference tightening torque is 0.82 N.m.
Chart
2
L
N
Chart 1

8
5-3. Connecting to the Generator
Step 1: Check the generator vo tage and frequency with an AC vo tmeter. It shou d be
the same to “VAC” va ue on the product
abe .
Step 2: Turn off the circuit breaker.
Step 3: Remove insu ation s eeve of the three
conductors 10 mm away and shorten
phase L and neutra conductor N to
maximum 3 mm. Refer to chart 1.
Step 4: Connect wires proper y to the simi ar po arities indicated on termina b ock. Be
sure to connect PE protective conductor ( ) first.
L→
→→
→LINE (brown or black)
→
→→
→Ground (yellow-green)
N→
→→
→Neutral (blue)
Step 5: Make sure the wires are secure y connected.
The reference tightening torque is 0.82 N.m.
Note: For safe operation, p ease use one more wire with ring termina to connect
grounding. Refer to Chart 3.
Chart 3
Recommended wire and terminal size:
Wire Size
Ring Terminal
Torque value
Cable mm2 Dimensions
D (mm) L (mm)
10 AWG 6 4.3 21.8 1.2~ 2 Nm
Chart
2
CAUTION: To prevent risk of e ectric shock, ensure the ground wire is proper y earthed
before operating this hybrid inverter no matter the grid is connected or not.
Ring terminal:
L
N
Chart 1

9
6. PV Module (DC) Connection
CAUTION: Before connecting to PV modu es, p ease separately insta a DC circuit
breaker between inverter and PV modu es.
NOTE1: P ease use 1000VDC/10A circuit breaker.
NOTE2: The overvo tage category of the PV input is II.
P ease fo ow the steps be ow to imp ement PV modu e connection:
Step 1: Check the input vo tage of PV array modu es. The acceptab e input vo tage of
the inverter is 150VDC - 580VDC. This system is on y app ied with two strings of
PV array. P ease make sure that the maximum current oad of each PV input
connector is 18A.
Step 2: Disconnect the circuit breaker and switch off the DC switch.
Step 3: Assemb e provided PV connectors with PV modu es by the fo owing steps.
Components or PV connectors and Tools:
Fema e connector housing
Fema e termina
Ma e connector housing
Ma e termina
CAUTION: Exceeding the maximum input vo tage can destroy the unit!! Check the
system before wire connection.
WARNING: Because this inverter is non-iso ated, on y three types of PV modu es are
acceptab e: sing e crysta ine and po y crysta ine with c ass A-rated and CIGS
modu es.
To avoid any ma function, do not connect any PV modu es with possibi ity of eakage
current to the inverter. For examp e, grounded PV modu es wi cause eakage current
to the inverter. When using CIGS modu es, p ease be sure NOT grounding.
CAUTION: It’s requested to have PV junction box with surge protection. Otherwise,
it wi cause damage to inverter when ightning occurs in PV modu es.

10
Crimping too and spanner
Cable preparation and connector assembly process:
Strip one cab e for 8 mm on both ends and be carefu NOT to nick
conductors. P ease refer to the diagram on the right.
Insert striped cab e into fema e termina and crimp fema e
termina as shown be ow.
Insert assemb ed cab e into fema e connector housing as shown be ow.
Insert striped cab e into ma e termina and crimp ma e termina as shown be ow.
Insert assemb ed cab e into ma e connector housing as shown be ow.
Then, use spanner to screw pressure dome tight y to fema e connector and ma e
connector as shown be ow.
Step 4: Check correct po arity of the connected cab e from PV modu es and PV input
connectors. Then, connect positive po e (+) of connected cab e to positive po e
(+) of PV input connector. Connect negative po e (-) of connected cab e to

11
negative po e (-) of PV input connector.
WARNING! It's very important for system safety and efficient operation to use
appropriate cab e for PV modu e connection. To reduce risk of injury, p ease
use the proper cab e size recommended be ow.
Conductor cross-section (mm
2
) AWG no.
4 12
Recommended Panel Con iguration
Solar Panel
Spec.
(re erence)
- 250Wp
- Vmp: 36.7Vdc
- Imp: 6.818A
- Voc: 44Vdc
- Isc: 7.636A
- Ce s: 72
SOLAR INPUT Q'ty o
panels
Total
Input
Power
Numbers in seria Strings in para e
12 1 12pcs 3000W
10 2 22pcs 5000W
CAUTION: Do NOT touch the inverter in case of e ectric shock. When PV modu es are
exposed to sun ight, it may generate DC vo tage to the inverter.
CAUTION: Never direct y touch termina s of the inverter. It wi cause etha e ectric
shock.

12
7. Battery Connection
CAUTION: Before connecting to batteries, p ease separately insta a DC circuit
breaker between inverter and batteries.
NOTE1: P ease on y use sea ed ead acid battery, vented and Ge battery. P ease check
its maximum charging vo tage and current when using this inverter for the first
time. If using Lithium iron or Ni-Cd battery, p ease consu t with insta er for the
detai s.
NOTE2: P ease use 60VDC/150A circuit breaker.
NOTE3: The overvo tage category of the battery input is II.
P ease fo ow the steps be ow to imp ement battery connection:
Step 1: Check the nomina vo tage of batteries. The nomina
input vo tage for inverter is 48VDC.
Step 2: Use two battery cab es. Remove insu ation s eeve 12
mm away and insert conductor into cab e ring
termina . Refer to the right diagram.
Step 3: Remove battery cover and insta it by fo owing battery po arity guide printed
near the battery termina ! P ace the externa battery cab e ring termina over
the battery termina .
RED cable to the positive terminal (+);
BLACK cable to the negative terminal (-).
WARNING! Wrong connections wi damage the unit permanent y.
Step 4: Make sure the wires are secure y connected. The reference tightening torque is
2.04 N.m.
WARNING! It's very important for system safety and efficient operation to use
appropriate cab e for battery connection. To reduce risk of injury, p ease use
the proper cab e size recommended be ow.
Nomina Battery Vo tage 48V
Conductor cross-section (mm
2
) 22
AWG no. 4

13
8. Load (AC Output) Connection
CAUTION: To prevent from further supp y to the oad via the inverter during any mode
of operation, an additiona disconnected device shou d be p aced on in the
bui ding wiring insta ation.
WARNING! It's very important for system safety and efficient operation to use
appropriate cab e for AC connection. To reduce risk of injury, p ease use the
proper cab e size recommended be ow.
Nomina Grid Vo tage 230VAC
Conductor cross-section (mm
2
) 6
AWG no. 10
Step 1: Remove insu ation s eeve of the three conductors 8 mm away, and shorten
phase L and neutra conductor N 3 mm. Refer to
chart 4.
Step 2: Connect wires according to po arities indicated
on termina b ock. Be sure to connect PE
protective conductor ( ) first. Refer to
Chart 5.
L 

LINE (brown or black)


Ground (yellow-green)
N 

Neutral (blue)
Step 3: Make sure the wires are secure y connected.
NOTE: The reference tightening torque is 0.82 N.m.
CAUTION: On y “AC Output Connector” is a owed to connect the oad to. Do NOT connect
the uti ity to “AC Output Connector”.
CAUTION: Be sure to connect L termina of oad to L termina of “AC Output Connector”
and N termina of oad to N termina of “AC Output Connector”. The G termina
of “AC Output Connector” shou d be connected to grounding of the oad. Do
NOT wrong y connect them.
L
N
Diagram 4
Diagram
5

14
Software Setting
P ease set up mains output in parameter setting after insta ing the bund ed software.
When “Emergency power supp y contro ” is enab ed and inverter is working in battery
mode, it wi cut off AC output and remain energy through EMS port when battery
vo tage drops down to the setting va ue in “Battery vo tage to cut-off mains output in
battery mode”. After that, if battery vo tage recovers to the setting va ue in “Battery
vo tage to turn on mains output in battery mode”, inverter wi automatica y turn on AC
output again.

15
9. EMS Connection
This port is avai ab e to provide a power source (230V/5A) for emergent ight and oad.
9-1 Inter ace Con iguration
A though there are four pins on this port, on y Pin 1 (Line) and Pin 4 (Neutra ) are
worktab e. P ease use supp ied cab es to connect Pin 1 and Pin 4 as shown be ow.
9-2. Function Description
When “Emergency power supp y contro ” is enab ed, EMS port wi be activated. Even
though battery vo tage drops to cut-off AC output point, EMS port wi reserve output
power for emergent use.
10. Generator connection
It is to connect to generator for power backup when uti ity is not avai ab e and battery is
connected. Inverter wi trigger generator upon receiving signa from dry contact during
ow battery. When generator is triggered, so ar power wi on y charge battery and
over oad protection wi be automatica y enab ed.

16
11. Communication
The inverter is bui t in severa communication ports and a so a s ot for a ternative
communication interfaces in order to connect it with a PC for insta ing corresponding
software. This inte igent s ot is suitab e to insta the software with SNMP card and
Modbus card. Fo ow the procedure be ow to connect communication wiring and insta
the software.
For RS232 port, you shou d use a DB9
cab e as fo ows:
For USB port, you shou d use a USB cab e
as fo ows:
For Dry contact port, p ease remove
insu ation s eeve of the three
conductors 8 mm away and insert three
cab es into the ports.
For SNMP or MODBUS card, you shou d
use RJ45 cab es as fo ows:
P ease insta monitoring software in your computer. Detai ed information is isted in the
fo owing chapter. After software is insta ed, you may initia the monitoring software and
retrieve data through communication port.

17
12. Dry Contact Signal
There is one dry contact avai ab e on the bottom pane . It cou d be used to
remote y contro the externa generator.
12-1. Electric Parameter
Parameter Symbo Max. Unit
Re ay DC vo tage Vdc 30 V
Re ay DC current Idc 1 A
Note: The app ication of the dry contact shou d not exceed the e ectric
parameter shown above. Otherwise, the interna re ay wi be damaged.
12-2. Function Description
Unit
Status Condition Dry contact port:
NO&C NC&C
Power Off Unit is off and no output is powered. Open C ose
Power On
Battery vo tage is ower than setting
battery cut-off discharging vo tage
when grid is avai ab e.
C ose Open
Battery vo tage is ower than setting
battery cut-off discharging vo tage
when grid is unavai ab e.
C ose Open
Battery vo tage is higher than 2
setting va ues be ow:
1. Battery re-discharging vo tage
when grid is avai ab e.
2. Battery re-discharging vo tage
when grid unavai ab e.
Open C ose

18
You can set the re ated parameters in software. Refer to the diagram be ow: